Airworthiness Directive · Amendment 39-12052 · Airbus Model A300 B2 and B4 Series Airplanes, and Model A300 B4-600, A300 B4-600R, and A300 F4-600R (A300-600) Series Airplanes
Airbus Model A300 B2 and B4 Series Airplanes, and Model A300 B4-600, A300 B4-600R, and A300 F4-600R (A300-600) Series Airplanes
Model A300 B2 and B4 series airplanes, and Model A300 B4-600, A300 B4-600R, and A300 F4-600R (A300-600) series airplanes, certificated in any category; except those on which Airbus Modifications 06267 and 07340 have been accomplished during production.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b)(1) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Airbus Model A300 B2 and B4 and A300-600 series airplanes, that currently requires wiring modifications to the engine and auxiliary power unit (APU) fire detection system. This amendment requires new wiring modifications for the engine and APU fire detection system. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent the fire warning from terminating prematurely, which could result in an unnoticed, uncontained engine/APU fire.
To prevent the fire warning from terminating prematurely, which could result in an unnoticed, uncontained engine/auxiliary power unit (APU) fire, accomplish the following:
(a) Within 12 months after the effective date of this AD, accomplish the wiring modifications for the engine and APU fire detection system in accordance with Airbus Service Bulletin A300-26-6038, Revision 03, dated March 30, 2000 (for Model A300-600 series airplanes); or A310-26-2024, Revision 06, dated March 31, 2000 (for Model A310 series airplanes); as applicable.
Note 2: Accomplishment of the wiring modifications prior to the effective date of this AD in accordance with Airbus Service Bulletin A300-26-6038, Revision 02, dated November 9, 1999, is considered acceptable for compliance with the applicable actions specified in this AD.
(b)(1) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, International Branch, ANM-116.
(2) Alternative methods of compliance, approved previously in accordance with AD 99-27-10, are approved as alternative methods of compliance with paragraph (a) of this AD.
Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116.
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.
