Airworthiness Directive · Amendment 39-21832 · Main landing gear strut/axle/truck
Leonardo S.p.a. Helicopters
This AD applies to Leonardo S.p.a. Model A109E, A109S, and AW109SP helicopters, certificated in any category, with an affected assembly as identified in European Union Aviation Safety Agency (EASA) AD 2019-0182, dated July 26, 2019 (EASA AD 2019-0182) installed.
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model A109E, A109S, and AW109SP helicopters. This AD was prompted by reports of main landing gear (MLG) wheel assembly failure. This AD requires repetitive inspections of each affected MLG strut assembly and, depending on the findings, replacement of an affected MLG strut assembly with a serviceable assembly, or application of corrosion preventive compound, 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.
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2019-0182.
(1) Where EASA AD 2019-0182 requires compliance in terms of flight hours, this AD requires using hours time-in-service.
(2) Where EASA AD 2019-0182 refers to its effective date, this AD requires using the effective date of this AD.
(3) Where the service information referenced in EASA AD 2019-0182 specifies to return a certain part to the manufacturer, this AD does not include that requirement.
(4) This AD does not mandate compliance with the “Remarks” section of EASA AD 2019-0182.
(5) Where the service information referenced in EASA AD 2019-0182 specifies to discard certain parts, this AD requires removing those parts from service.
(6) Where Annex A of the service information referenced in EASA AD 2019-0182 specifies to contact the manufacturer if there is any indication due to “some burr”; and Annex B of the service information specifies to contact the manufacturer if there are signs of arcing or burning on a part; before further flight, the instructions or corrective actions (including part replacement if necessary) must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Leonardo S.p.A.'s EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.
Although the service information referenced in EASA AD 2019-0182 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
