Airworthiness Directive · Amendment 39-11774 · Airbus Model A320-232 and -233 Series Airplanes
Airbus Model A320-232 and -233 Series Airplanes
Model A320-232 and -233 series airplanes, certificated in any category, except those airplanes on which Airbus Modification 27146 or 28006 has been installed, or on which Airbus Service Bulletin A320-73-1067 has been accomplished.
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) 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 adopts a new airworthiness directive (AD), applicable to certain Airbus Model A320-232 and -233 series airplanes, that requires replacement of the fuel metering units (FMU) of each engine with modified FMU's. 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 an inadvertent increase in thrust, which could result in reduced controllability of the airplane during final approach.
To prevent an inadvertent increase in thrust, which could result in reduced controllability of the airplane during final approach, accomplish the following:
(a) Within 18 months after the effective date of this AD, replace the fuel metering units (FMU) of each engine with modified FMU's, in accordance with Airbus Service Bulletin A320-73-1067, dated August 11, 1999.
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