Airworthiness Directive · Amendment 39-16967 · Indicating and recording systems
Airbus Airplanes
This AD applies to Airbus Model A318-111, -112, -121, and -122 airplanes; Model A319-111, -112, -113, -114, -115, -131, -132, and -133 airplanes; Model A320-111, -211, -212, -214, -231, -232, and -233 airplanes; and Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes; certificated in any category; all serial numbers; if equipped with a flight warning computer (FWC) with a part number (P/N) listed in table 1 of this AD.
| FWC Part No. |
|---|
| 350E>017238484 (H1D1) |
| 350E>016187171 (C5) |
| 350E>017248685 (H1D2) |
| 350E>017251414 (H1E1) |
| 350E>017271616 (H1E2) |
| 350E>018291818 (H1E3CJ) |
| 350E>018301919 (H1E3P) |
| 350E>018312020 (H1E3Q) |
| 350E>053020202 (H2E2) |
| 350E>053020303 (H2E3) |
| 350E>053020404 (H2E4) |
| 350E>053020606 (H2F2) |
| 350E>053020707 (H2F3) |
| 350E>053021010 (H2F3P) |
| 350E>053020808 (H2F4) |
We are superseding two existing airworthiness directives (AD). One existing AD is for Airbus Model A319, A320, and A321 series airplanes without Airbus modification 26017. That AD currently requires replacing the flight warning computers (FWCs). The other existing AD is for Airbus Model A320 and A321 series airplanes on which Airbus modification 24612 or Airbus Service Bulletin A320-31-1080 has not been accomplished. That existing AD currently requires revising the limitations section of the airplane flight manual. This new AD requires replacing both FWC units with certain FWC units. This AD was prompted by in-service events of thrust lever mismanagement and a manufacturer analysis on the failure to follow procedure or heed existing cockpit cues. The analysis of the thrust lever management issue showed two categories of scenarios that could lead to thrust asymmetry during landing, with controllability and deceleration consequences. We are issuing this AD to prevent thrust asymmetry conditions which could result in loss of control of the airplane during landing.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
(1) For Model A319, A320, and A321 series airplanes without Airbus modification 26017: Within 18 months after June 24, 2002 (the effective date of AD 2002-10-06, Amendment 39-12752 (67 FR 35425, May 20, 2002)), replace the flight warning computers (FWCs) in accordance with Airbus Service Bulletin A320-31-1106, Revision 04, dated December 21, 1999; or Airbus Mandatory Service Bulletin A320-31-1106, Revision 05, dated September 21, 2000.
(2) This paragraph provides credit for replacement of the FWCs required by paragraph (g)(1) of this AD, if the replacement was done before June 24, 2002 (the effective date of AD 2002-10-06, Amendment 39-12752 (67 FR 35425, May 20, 2002)), using Airbus Service Bulletin A320-31-1106, dated January 3, 1997; Revision 01, dated April 16, 1997; Revision 02, dated January 20, 1998; or Revision 03, dated July 9, 1999.
Installation of a FWC standard in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-31-1141, Revision 04, dated February 14, 2002, is an acceptable method of compliance with the replacement required by paragraph (g) of this AD.
Within 48 months after the effective date of this AD: Replace both FWC units with FWC part number 350E053020909, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A320-31-1334, Revision 04, including Appendix 01, dated September 12, 2011.
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
