29 Airworthiness Directives: 26 airplane, 1 engine, 2 various.
AD 2023-11-03 · published Jun 1, 2023, effective Jun 16, 2023
Honda Aircraft Company LLC Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-18- 03, which applied to certain Honda Aircraft Company LLC (Honda) Model HA-420 airplanes. AD 2022-18-03 required incorporating temporary revisions into the airplane flight manual (AFM) and the quick reference handbook (QRH) that modify procedures for windshield heat operation until the affected windshield assemblies are replaced. This AD retains all actions required by AD 2022-18-03 and corrects typographical errors in certain document numbers specified in certain paragraphs of the regulatory information. The FAA is issuing this AD to address the unsafe condition on these products.
AD 92-02-14 R1 · published Jun 2, 2023, effective Jun 2, 2023
Airbus SAS Airplanes
The FAA is removing Airworthiness Directive (AD) 92-02-14, which applied to certain Airbus SAS Model A320 series airplanes. AD 92- 02-14 required inspection for correct installation of the flexible control cables on the overwing emergency escape slides. The FAA issued AD 92-02-14 to prevent failure of the overwing emergency escape slides to deploy, which would compromise use of the exit during an emergency. Since the FAA issued AD 92-02-14, no new occurrences of incorrect cable installations have been reported, and existing maintenance activities are adequate to prevent new occurrences. Therefore, the FAA has determined that AD 92-02-14 is no longer necessary. Accordingly, AD 92- 02-14 is removed.
AD 2023-09-08 · published Jun 5, 2023, effective Jul 10, 2023
Bombardier, Inc., Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This AD was prompted by a report that certain environmental control system (ECS) pre-cooler clamp assemblies may not conform to specifications. This AD requires an inspection of the pre-cooler clamps and replacement of non- conforming pre-cooler clamps. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-09-11 · published Jun 5, 2023, effective Jul 10, 2023
Airbus SAS Airplanes
The FAA is superseding Airworthiness Directive (AD) 2019-24- 13, which applied to certain Airbus SAS Model A318 series airplanes; Model A319-111, -112, -113, -114, -115, -131, -132, and -133 airplanes; Model A320-211, -212, -214, -216, -231, -232, and -233 airplanes; and Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes. AD 2019-24-13 required repetitive high-frequency eddy current (HFEC) inspections for cracking of a stiffener of a certain lateral window frame, and applicable related investigative and corrective actions. This AD was prompted by a determination that certain inspection times need to be revised. This AD retains the requirements of AD 2019-24-13, with amended compliance times, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-10-01 · published Jun 5, 2023, effective Jun 20, 2023
Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.; Embraer S.A.) Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. Model ERJ 190-300 and ERJ 190-400 airplanes. This AD was prompted by the excessive operation of certain elevator and rudder surfaces during manufacturing, causing damage and accelerating wear of internal parts of the power control units (PCUs). This AD requires replacement of the left-hand (LH) and right-hand (RH) elevator PCUs and lower and upper rudder PCUs, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-09-05 · published Jun 6, 2023, effective Jul 11, 2023
Airbus SAS Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes). This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-10-03 · published Jun 6, 2023, effective Jul 11, 2023
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-10-06 · published Jun 6, 2023, effective Jul 11, 2023
Airbus SAS Airplanes
The FAA is superseding Airworthiness Directive (AD) 2017-06- 07, which applied to all Airbus SAS Model A330-200 Freighter, -200, and -300 series airplanes; and A340-200, -300, -500, and -600 series airplanes. AD 2017-06-07 required identification of potentially affected inboard flap parts, a one-time eddy current inspection to identify which material the parts are made of, and, depending on findings, replacement with serviceable parts. This AD was prompted by a determination that, even if affected inboard flaps were not installed on airplanes during production, affected inboard flaps could be installed on airplanes as spare parts. This AD continues to require the actions in AD 2017-06-07, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD also reduces the allowance for the installation of affected parts under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-10-08 · published Jun 6, 2023, effective Jul 11, 2023
ATR-GIE Avions de Transport Régional Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-25- 16, which applied to all ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, and -320 airplanes. AD 2022-25-16 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require certain actions in AD 2022-25-16 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-02 · published Jun 6, 2023, effective Jul 11, 2023
Airbus SAS Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes). This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-10-09 · published Jun 9, 2023, effective Jun 26, 2023
The Boeing Company Airplanes
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by reports of damaged decompression panels from operators. This AD requires repetitive inspections for damaged fastener holes on the vertical and bottom edges of the inward and outward blowing decompression panels installed on the forward and aft cargo compartment vertical sidewall linings and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-05 · published Jun 13, 2023, effective Jul 18, 2023
Pilatus Aircraft Ltd. Airplanes
The FAA is superseding Airworthiness Directive (AD) 2021-10- 28, which applied to all Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. AD 2021-10-28 required incorporating new revisions to the airworthiness limitations section (ALS) of the existing airplane maintenance manual (AMM) or Instructions for Continued Airworthiness (ICA) to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2021-10-28, the FAA determined that new or more restrictive airworthiness limitations are necessary. This AD requires revising the ALS of the existing AMM or ICA for your airplane, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-08 · published Jun 13, 2023, effective Jul 18, 2023
Airbus SAS Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-19- 05, which applied to all Airbus SAS Model A330-841 and -941 airplanes. AD 2022-19-05 required maintenance actions, including a high pressure valve (HPV) seal integrity test, repetitive replacement of the HPV clips, revision of the existing airplane flight manual (AFM), and implementation of updates to the FAA-approved operator's minimum equipment list (MEL). This AD was prompted by additional instructions and maintenance procedures developed to address failures of the HPV. This AD continues to require certain actions in AD 2022-19-05 and provides additional criteria for the installation of HPV and HPV clips, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-09 · published Jun 13, 2023, effective Jul 18, 2023
Gulfstream Aerospace Corporation Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation Model GVII-G500 and GVII-G600 airplanes. This AD was prompted by reports of two landing incidents in which the alpha limiter engaged in the landing flare in unstable air, resulting in high rate of descent landings and damage to the airplanes. This AD requires updating the flight control computer (FCC) software. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-04 · published Jun 16, 2023, effective Jul 21, 2023
Bombardier, Inc., Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a report that a design deficiency was discovered which could allow a no-back pawl to be incorrectly installed in a horizontal stabilizer trim actuator (HSTA). This AD requires a check for part number and serial numbers of the HSTA, and if necessary, inspection of the no-back pawl installation, and corrective action. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-12 · published Jun 16, 2023, effective Jul 21, 2023
DAHER AEROSPACE (Type Certificate Previously Held by SOCATA) Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain DAHER AEROSPACE (type certificate previously held by SOCATA) Model TBM 700 airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as interference between the emergency exit trim panel and the upholstery panel, which could result in additional effort required to open the emergency exit door. This AD requires modification of the gripping strap, which maintains the upholstery panel on the emergency exit trim panel. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-05 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-03- 05, which applied to all The Boeing Company Model 747-8F and 747-8 series airplanes and Model 777 airplanes. AD 2022-03-05 required revising the limitations section of the existing airplane flight manual (AFM) to incorporate limitations prohibiting dispatching or releasing to airports, and approaches or landings on runways, when in the presence of interference from wireless broadband operations in the 3.7- 3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-03-05, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting dispatching or releasing to airports, and approaches or landings on runways, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-10 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-02- 16, which applied to all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2022-02-16 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate limitations prohibiting certain landings and the use of certain minimum equipment list (MEL) items, and to incorporate operating procedures for calculating landing distances, when in the presence of interference from wireless broadband operations in the 3.7- 3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-02-16, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting certain landings and the use of certain MEL items, and retains the operating procedures from AD 2022-02-16 for calculating landing distances, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-11 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-03- 20, which applied to all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. AD 2022-03-20 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate limitations prohibiting the use of certain minimum equipment list (MEL) items, and to incorporate operating procedures for calculating takeoff and landing distances, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-03-20, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band base stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7- 3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting the use of certain MEL items, and would retain the operating procedures from AD 2022-03-20 for calculating takeoff and landing distances, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-12 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-04- 05, which applied to all The Boeing Company Model 757 and 767 airplanes. AD 2022-04-05 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate specific operating procedures for landing distance calculations, instrument landing system (ILS) approaches, non-precision approaches, speedbrake deployment, and go-around and missed approaches, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-04-05, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band base stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations and operating procedures sections of the existing AFM to incorporate specific operating procedures for landing distance calculations, ILS approaches, non-precision approaches, speedbrake deployment, and go- around and missed approaches, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-13 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-05- 04, which applied to all The Boeing Company Model 737-100, -200, -200C, -300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes, except for Model 737-200 and -200C series airplanes equipped with a certain flight control system. AD 2022-05-04 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate specific operating procedures for instrument landing system (ILS) approaches, speedbrake deployment, go-arounds, and missed approaches, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-05-04, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band base stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7- 3.98 GHz. This AD requires revising the limitations and operating procedures sections of the existing AFM to incorporate specific operating procedures for ILS approaches, speedbrake deployment, go- arounds, and missed approaches, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-14 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-06- 16, which applied to all The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, and 747-400F series airplanes. AD 2022-06-16 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate specific operating procedures for takeoff, instrument landing system (ILS) approaches, non-precision approaches, and go around and missed approaches, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) interference as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-06-16, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations requiring specific operating procedures, and retains the operating procedures for takeoff, ILS approaches, non-precision approaches, and go-around and missed approaches from AD 2022-06-16, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-12-15 · published Jun 21, 2023, effective Jun 21, 2023
The Boeing Company Airplanes
The FAA is superseding Airworthiness Directive (AD) 2022-09- 18, which applied to all The Boeing Company Model 707, 717, and 727 airplanes; Model DC-8, DC-9, and DC-10 airplanes; Model MD-10 and MD-11 airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC- 9-87 (MD-87), and MD-88 airplanes; and Model MD 90-30 airplanes. AD 2022-09-18 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate specific operating procedures for, depending on the airplane model, instrument landing system (ILS) approaches, non-precision approaches, ground spoiler deployment, and go-around and missed approaches, when in the presence of interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2022-09-18, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations and operating procedures sections of the AFM to incorporate specific operating procedures for, depending on the airplane model, ILS approaches, non-precision approaches, ground spoiler deployment, and go-around and missed approaches, due to the presence of 5G C-Band interference. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2016-15-01 R1 · published Jun 26, 2023, effective Jun 23, 2023
Airbus SAS Airplanes
The FAA is removing Airworthiness Directive (AD) 2016-15-01, which applied to all Airbus SAS Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. AD 2016-15-01 required an inspection to determine trimmable horizontal stabilizer actuator (THSA) part numbers, serial numbers, and flight cycles on certain THSAs; and repetitive replacement of certain THSAs. The FAA issued AD 2016-15-01 to prevent loss of THSA no-back brake (NBB) efficiency. Since the FAA issued AD 2016-15-01, the FAA has issued AD 2022-25-12 to terminate AD 2016-15-01 for Model A310 series airplanes and AD 2023-11-02 to terminate AD 2016-15-01 for Model A300-600 series airplanes. The FAA has also determined that the inclusion of the Model A300 series airplanes in the applicability of AD 2016-15-01 was an inadvertent error. Accordingly, AD 2016-15-01 is removed.
AD 2023-11-10 · published Jun 26, 2023, effective Jul 11, 2023
Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, 382G, and 382J airplanes; and Model C-130A, HP- C-130A, EC-130Q, 282-44A-05 (C-130B), C-130B, and C-130H airplanes. This AD was prompted by a report indicating a quality audit found aft fuselage sloping longerons manufactured with an overaged condition. This AD requires a conductivity check on certain aft fuselage sloping longerons and applicable on-condition actions. This AD also limits the installation of certain aft fuselage sloping longerons under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-13-01 · published Jun 27, 2023, effective Jul 12, 2023
Airbus SAS Airplanes
The FAA is superseding Airworthiness Directive (AD) 2008-23- 01, which applies to certain Airbus SAS Model A318, A319, A320, and A321 series airplanes. AD 2008-23-01 required inspecting to determine the part number and serial number of the fuel tank boost pumps and, for airplanes with affected pumps, revising the operator's airplane flight manual (AFM) and FAA-approved maintenance program. AD 2008-23-01 also required modifying or replacing certain fuel tank boost pumps, which terminated the AFM limitations and the maintenance program revisions. Since the FAA issued AD 2008-23-01, it has been determined that airplanes fitted with a different fuel pump can be subject to cavitation erosion on the wiring conduit. This AD requires inspecting affected fuel pumps for discrepancies and replacement if necessary, as specified in a European Union Aviation Safety Agency (EASA). This AD also requires replacing certain other fuel pumps. This AD also limits the installation of affected fuel pumps under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-06 · published Jun 9, 2023, effective Jun 26, 2023
Engine Alliance Engines
The FAA is adopting a new airworthiness directive (AD) for certain Engine Alliance (EA) Model GP7270, GP7272, and GP7277 engines. This AD was prompted by a manufacturer investigation that revealed that certain high-pressure turbine (HPT) interstage seals were manufactured from material suspected to contain iron inclusion. This AD requires replacement of the affected HPT interstage seals. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-09-09 · published Jun 12, 2023, effective Jul 17, 2023
Aerostar Aircraft Corporation, B-N Group Ltd., Commander Aircraft Corporation, Cirrus Design Corporation, Continental Aerospace Technologies Inc., Costruzioni Aeronautiche Tecnam S.P.A., Daher Aerospace, Diamond Aircraft Industries Inc, The Enstrom Helicopter Corporation, Helio Aircraft LLC, Helio Alaska Inc., The King's Engineering Fellowship, Lycoming Engines, Maule Aer
The FAA is adopting a new airworthiness directive (AD) for turbocharged, reciprocating engine-powered airplanes and helicopters and turbocharged, reciprocating engines with a certain v-band coupling installed. This AD was prompted by multiple failures of spot-welded, multi-segment v-band couplings at the tailpipe to the turbocharger exhaust housing flange (also referred to as ''spot-welded, multi- segment exhaust tailpipe v-band coupling''). This AD establishes a life limit for the spot-welded, multi-segment exhaust tailpipe v-band coupling and requires repetitively inspecting the spot-welded, multi- segment exhaust tailpipe v-band coupling. The FAA is issuing this AD to address the unsafe condition on these products.
AD 2023-11-07 · published Jun 22, 2023, effective Jun 22, 2023
Various Helicopters
The FAA is superseding Airworthiness Directive (AD) 2021-23- 13, which applied to all helicopters equipped with a radio (also known as radar) altimeter. AD 2021-23-13 required revising the limitations section of the existing rotorcraft flight manual (RFM) for your helicopter to incorporate limitations prohibiting certain operations requiring radio altimeter data when in the presence of 5G C-Band interference in areas as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2021-23-13, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band base stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7- 3.98 GHz (5G C-Band). This AD requires revising the limitations section of the existing RFM to incorporate limitations prohibiting certain operations requiring radio altimeter data, due to the presence of 5G C- Band interference. The FAA is issuing this AD to address the unsafe condition on these products. In addition, the FAA is requesting comment on the change to the spurious emission level requirement.
