Airworthiness Directive · Amendment 39-14442 · Airbus Model A300 B2 and B4 Series Airplanes
Airbus Model A300 B2 and B4 Series Airplanes
This AD applies to all Airbus Model A300 B2-1A, B2-1C, B2K-3C, and B2-203 airplanes; and Model A300 B4-2C, B4-103, and B4-203 airplanes; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Model A300 B2 and B4 series airplanes. This AD requires repetitive replacement of the angle of attack (AOA) sensors with new or overhauled AOA sensors. This AD also provides an optional terminating action for the repetitive replacements. This AD results from reports of several false stall warnings associated with stick-shaker activation, occurring during take-off. We are issuing this AD to prevent false stall warnings associated with stick-shaker activation, which could result in increased pilot workload as the pilot tries to determine the cause of the stall warning and possible reduction in the pilot's ability to control the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 4,500 flight hours or 36 months after the effective date of this AD, whichever is first: Inspect zone 120 to determine the part numbers (P/Ns) of all three angle of attack (AOA) sensors, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-34-0176, Revision 01, dated February 3, 2004. Instead of inspecting zone 120 to determine the P/Ns of the AOA sensors, a review of airplane maintenance records is acceptable if the P/Ns of the AOA sensors can be conclusively determined from that review. If no Honeywell AOA sensor having part number (P/N) 965-4020-007 is found, then no further action is required by this paragraph. If any Honeywell AOA sensor having P/N 965-4020-007 is found, before further flight, replace the AOA sensor with a new or overhauled AOA sensor having P/N 965-4020-007, in accordance with the service bulletin. Repeat the replacement thereafter at intervals not to exceed 8,000 flight hours or 96 months, whichever is first. Accomplishing the actions specified in paragraph (g) of this AD terminates the repetitive replacements.
Replacement of all Honeywell AOA sensors having P/N 965-4020-007 between frame (FR)18 and FR19 with “vane type” AOA sensors; and replacement of the current detectors in relay boxes 252VU and 107VU with new current detectors; in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-34-0092, Revision 04, dated April 25, 2005; terminate the repetitive replacements required by paragraph (f) of this AD.
Although Airbus Service Bulletin A300-34-0176, Revision 01, dated February 3, 2004, specifies to submit certain information to the manufacturer, this AD does not include that requirement.
(i) As of the effective date of this AD, no person may install an AOA sensor having P/N 965-4020-007 on any airplane, unless it is new or overhauled. Thereafter repetitively replace the new or overhauled AOA sensor in accordance with paragraph (f) of this AD.
Actions done before the effective date of this AD in accordance with Airbus Service Bulletin A300-34-0176, dated July 9, 2003, are acceptable for compliance with the corresponding requirements of paragraph (f) of this AD.
Actions done before the effective date of this AD in accordance with Airbus Service Bulletin A300-34-092, Revision 2, dated July 18, 1985, or Airbus Service Bulletin A300-34-0092, Revision 03, dated November 2, 2004, are acceptable for compliance with the requirements of paragraph (g) of this AD.
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.
