Airworthiness Directive · Amendment 39-17477 · Pneumatic
Embraer S.A. Airplanes
This AD applies to Embraer S.A. Model ERJ 170-100 LR, -100 STD, -100 SE., and -100 SU airplanes; Model ERJ 170-200 LR, -200 SU, and -200 STD airplanes; Model ERJ 190-100 STD, -100 LR, -100 ECJ, and -100 IGW airplanes; and Model ERJ 190-200 STD, -200 LR, and -200 IGW airplanes; certificated in any category; having Hamilton Sundstrand low pressure check valve (LPCV) part number (P/N) 1001447-3 or 1001447-4.
We are superseding airworthiness directive (AD) 2010-14-14 that applies to certain Embraer S.A. Model ERJ 170 and ERJ 190 airplanes. AD 2010-14-14 currently requires, for certain airplanes, repetitively replacing the low-stage check valve and associated seals of the right hand (RH) engine's engine bleed system with a new check valve and new seals, replacing the low pressure check valves (LPCVs), and revising the maintenance program. For certain other airplanes, AD 2010-14-14 requires replacing a certain low-stage check valve with an improved low-stage check valve. For certain airplanes, this new AD adds replacing certain LPCVs of the left hand (LH) and RH engines, which would be an option for other airplanes. This AD was prompted by reports of uncommanded engine shutdowns on both Model ERJ 170 and ERJ 190 airplanes due to excessive wear and failure of LPCVs having certain part numbers. We are issuing this AD to prevent the possibility of a dual engine in-flight shutdown due to LPCV failure.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
This paragraph restates the requirements of paragraph (f) of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010). For Model ERJ 170-100 LR, -100 STD, -100 SE., and -100 SU airplanes equipped with LPCVs having P/N 1001447-3: Within 100 flight hours after November 29, 2005 (the effective date of AD 2005-23-14, Amendment 39-14372 (70 FR 69075, November 14, 2005)), or prior to the accumulation of 3,000 total flight hours, whichever occurs later, replace the low-stage check valve and associated seals of the RH engine's engine bleed system with a new check valve and new seals, in accordance with the Accomplishment Instructions of EMBRAER Alert Service Bulletin 170-36-A004, dated September 28, 2005; or paragraph 3.C. of the Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0004, dated November 18, 2005, or Revision 01, dated March 10, 2008. As of August 26, 2010 (the effective date of AD 2010-14-14), only use EMBRAER Service Bulletin 170-36-0004, Revision 01, dated March 10, 2008, for the actions required by this paragraph. Repeat the replacement thereafter at intervals not to exceed 3,000 flight hours.
This paragraph restates the provision specified in paragraph (g) of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010). Although EMBRAER Alert Service Bulletin 170-36-A004, dated September 28, 2005, specifies to send removed check valves to the manufacturer, this AD does not include that requirement.
This paragraph restates requirements of paragraph (h) of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010). For Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes equipped with LPCVs having P/N 1001447-3: Within 300 flight hours after September 13, 2007 (the effective date of AD 2007-16-09, Amendment 39-15148 (72 FR 44734, August 9, 2007)), or prior to the accumulation of 3,000 total flight hours, whichever occurs later, replace the low-stage check valve and associated seals of the LH engine's engine bleed system with a new check valve and new seals, in accordance with paragraph 3.B. of the Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0004, dated November 18, 2005, or Revision 01, dated March 10, 2008. As of August 26, 2010 (the effective date of AD 2010-14-14), only use EMBRAER Service Bulletin 170-36-0004, Revision 01, dated March 10, 2008. Repeat the replacement thereafter at intervals not to exceed 3,000 flight hours.
This paragraph restates the provision specified in paragraph (i) of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010). Although EMBRAER Service Bulletin 170-36-0004, dated November 18, 2005, specifies to send removed check valves to the manufacturer, this AD does not include that requirement.
This paragraph restates the requirements of paragraph (j) of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010), with revised service information for paragraphs (k)(3), (k)(7), and (k)(8) of this AD. Unless already done, do the following actions.
(1) For Model ERJ 170-200 LR, -200 STD, and -200 SU airplanes equipped with LPCVs having P/N 1001447-3: Within 100 flight hours after August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), or prior to the accumulation of 3,000 total flight hours, whichever occurs later, replace the low-stage check valve and associated seals of the RH engine's engine bleed system with a new check valve and new seals, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0004, Revision 01, dated March 10, 2008. Repeat the replacement thereafter at intervals not to exceed 3,000 flight hours.
(2) For Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes equipped with LPCVs having P/N 1001447-3: Replacing the LPCV having P/N 1001447-3 with a new one having P/N 1001447-4, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0011, Revision 02, dated July 19, 2007, terminates the repetitive replacements required by paragraphs (g), (i), and (k)(1) of this AD.
(3) For Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes equipped with LPCVs having P/N 1001447-3, at the earlier of the times specified in paragraphs (k)(3)(i) and (k)(3)(ii) of this AD, revise the maintenance program to include maintenance Task 36-11-02-002 (Low Stage Bleed Check Valve), specified in Section 1 of the EMBRAER 170 Maintenance Review Board Report (MRBR), MRB-1621, Revision 6, dated January 14, 2010; or Revision 7, dated November 11, 2010. Thereafter, except as provided by paragraph (q) of this AD, no alternative inspection intervals may be approved for the task.
(i) Within 180 days after accomplishing paragraph (k)(2) of this AD.
(ii) Before any LPCV having P/N 1001447-4 accumulates 3,000 total flight hours, or within 300 flight hours after August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), whichever occurs later.
(4) For Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes equipped with LPCVs having P/N 1001447-3: As of August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), no person may install any LPCV identified in paragraph (k)(4)(i) or (k)(4)(ii) of this AD on any airplane.
(i) Any LPCV having P/N 1001447-3, installed on Model ERJ 170 airplanes, that has accumulated more than 3,000 total flight hours.
(ii) Any LPCV having P/N 1001447-3, installed on Model ERJ 170 and ERJ 190 airplanes, that has accumulated 3,000 or more total flight hours. For Model ERJ 170 airplanes: To install an LPCV having P/N 1001447-3 which was previously installed on a Model ERJ 190 airplane, calculate the equivalent number of flight hours by multiplying the flight hours accumulated on the Model ERJ 190 airplane by a factor of 2 (100 percent).
(5) For Model ERJ 190-100 ECJ, -100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW airplanes: Within 100 flight hours after August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), replace all LPCVs having P/N 1001447-3 that have accumulated 1,500 total flight hours or more as of August 26, 2010 (the effective date of AD 2010-14-14), with a new or serviceable LPCV having P/N 1001447-4 that has accumulated less than 2,000 total flight hours since new or since overhaul, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 190-36-0006, Revision 01, dated July 19, 2007.
(6) For Model ERJ 190-100 ECJ, -100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW airplanes: Replace all LPCVs having P/N 1001447-3 that have accumulated less than 1,500 total flight hours as of August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), before the LPCV accumulates 1,500 total flight hours or within 100 flight hours after August 26, 2010 (the effective date of AD 2010-14-14), whichever occurs later. Replace that LPCV with a new or serviceable LPCV having P/N 1001447-4 that has accumulated less than 2,000 total flight hours since new or since overhaul, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 190-36-0006, Revision 01, dated July 19, 2007.
(7) For Model ERJ 190-100 ECJ, -100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW airplanes: Within 200 flight hours after August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), or before any LPCV having P/N 1001447-4 installed on the right engine accumulates 2,000 total flight hours since new or since overhaul, whichever occurs later, replace the valve with a new or serviceable LPCV having P/N 1001447-4 that has accumulated less than 2,000 total flight hours since new or since overhaul, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 190-36-0014, Revision 01, dated January 14, 2009 (for Model ERJ 190-100 STD, -100 LR, and -100 IGW, -200 STD, -200 LR, and -200 IGW airplanes); or EMBRAER Service Bulletin 190LIN-36-0004, dated December 23, 2009 (for Model 190-100 ECJ airplanes). Repeat the replacement on the right engine at intervals not to exceed 2,000 total flight hours on the LPCV since new or last overhaul.
(8) For Model ERJ 190-100 ECJ, -100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW airplanes: Within 200 flight hours after August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), or before any LPCV having P/N 1001447-4 installed on the left engine accumulates 2,000 total flight hours since new or last overhaul, whichever occurs later, replace the valve with a new or serviceable LPCV having P/N 1001447-4 that has accumulated less than 2,000 total flight hours since new or since overhaul, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 190-36-0014, Revision 01, dated January 14, 2009 (for Model ERJ 190-100 STD, -100 LR, and -100 IGW, -200 STD, -200 LR, and -200 IGW airplanes); or EMBRAER Service Bulletin 190LIN-36-0004, dated December 23, 2009 (for Model 190-100 ECJ airplanes). Repeat the replacement on the left engine at intervals not to exceed 2,000 total flight hours on the LPCV since new or last overhaul.
(9) For Model ERJ 190-100 ECJ, -100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW airplanes: As of August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), installation on the left and right engines with an LPCV having P/N 1001447-4 is allowed only if the valve has accumulated less than 2,000 total flight hours since new or last overhaul prior to installation.
(10) For Model ERJ 190-100 ECJ, -100 LR, -100 IGW, -100 STD, -200 STD, -200 LR, and -200 IGW airplanes: As of August 26, 2010 (the effective date of AD 2010-14-14, Amendment 39-16359 (75 FR 42585, July 22, 2010)), no LPCV having P/N 1001447-3 may be installed on any airplane. Any LPCV having P/N 1001447-3 already installed on an airplane may remain in service until reaching the flight-hour limit defined in paragraphs (k)(5) and (k)(6) of this AD.
For Model ERJ 190-100 STD, -100 LR, -100 ECJ, and -100 IGW airplanes; and Model ERJ 190-200 STD, -200 LR, and -200 IGW airplanes: Except as provided by paragraph (m) of this AD, within 10 months after the effective date of this AD, install a new LPCV having P/N 1001447-6, in accordance with paragraph (l)(1) or (l)(2) of this AD. Installation of P/N 1001447-6 terminates the requirement for installation and repetitive replacements of the LPCV P/N 1001447-3 or 1001447-4 required by paragraph (k) of this AD.
(1) Using a method approved by either the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or Agência Nacional de Aviação Civil (ANAC) (or its delegated agent).
(2) The Accomplishment Instructions of EMBRAER Service Bulletins 190-36-0014, Revision 01, dated January 14, 2009 (for Model ERJ 190-100 STD, -100 LR, and -100 IGW, -200 STD, -200 LR, and -200 IGW airplanes), and 190-LIN-36-0004, dated December 23, 2009 (for Model 190-100 ECJ airplanes). The service information has instructions to install P/N 1001447-4, but can also be used to install P/N 1001447-6.
For Model ERJ 190-100 STD, -100 LR, -100 ECJ, and -100 IGW airplanes; and Model ERJ 190-200 STD, -200 LR, and -200 IGW airplanes; on which an LPCV, P/N 1001447-4, has been installed before the compliance time specified in paragraph (l) of this AD: Prior to the accumulation of 2,000 flight hours on the part since new or overhauled, install a new LPCV having P/N 1001447-6, in accordance with paragraph (m)(1) or (m)(2) of this AD.
(1) Using a method approved by either the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or ANAC (or its delegated agent).
(2) The Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0011, Revision 2, dated July 19, 2007. The service information has instructions to install P/N 1001447-4, but can also be used to install P/N 1001447-6.
For Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes; and Model ERJ 170-200 LR, -200 SU, and -200 STD airplanes: Installation of a new LPCV having P/N 1001447-6 terminates the requirement for installation and repetitive replacements of the LPCV, P/N 1001447-3 or 1001447-4, required by paragraph (k) of this AD.
Note 1 to paragraph (n) of this AD: Guidance for installing P/N 1001447-6 can be found in EMBRAER Service Bulletin 170-36-0011, Revision 2, dated July 19, 2007. The service information has instructions to install P/N 1001447-4, but can also be used to install P/N 1001447-6.
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.
