Airworthiness Directive · Amendment 39-11791 · Airbus Model A319, A320, and A321 Series Airplanes
Airbus Model A319, A320, and A321 Series Airplanes
Model A319, A320, and A321 series airplanes; certificated in any category; on which any of the Airbus modifications has been installed or any of the Airbus service bulletins has been accomplished, as listed in the following table; except those airplanes on which Airbus Modification 26716, 26799, 26968, or 27831 has been installed; or except those airplanes on which Airbus Service Bulletin A320-22-1063, A320-22-1064, A320-22-1065, A320-22-1067, A320-22-1068, or A320-22-1069 has been accomplished:
| Affected model(s) | Airbus modification installed |
|---|---|
| A319 and A321 | 25469 (reference Airbus Service Bulletin A320-22-1054). |
| A319, A320, and A321 | 26093. |
| A320 | 24065 (reference Airbus Service Bulletin A320-22-1040) or 24067 (reference Airbus Service Bulletin A320-22-1039). |
| A320 | 25314 (reference Airbus Service Bulletin A320-22-1051) or 25315 (reference Airbus Service Bulletin A320-22-1050). |
| A320 and A321 | 24064 (reference Airbus Service Bulletin A320-22-1034) or 24066 (reference Airbus Service Bulletin A320-22-1029). |
| A320 and A321 | 25199 (reference Airbus Service Bulletin A320-22-1045) or 25200 (reference Airbus Service Bulletin A320-22-1046). |
| A320 and A321 | 25240 (reference Airbus Service Bulletin A320-22-1033) or 25274 (reference Airbus Service Bulletin A320-22-1056). |
| A319, A320, and A321 | 26243. |
| A319 and A320 | 26717. |
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 (e)(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 A319, A320, and A321 series airplanes, that currently requires revising the FAA-approved Airplane Flight Manual (AFM) to increase monitoring of the flight path of the airplane to detect certain software anomalies of the flight management guidance system, and take appropriate corrective actions. This amendment adds a requirement to either modify the existing on-board replaceable modules of the flight management guidance computers (FMGC) to incorporate software changes, or replace the FMGC's with new, improved FMGC's; which would terminate the requirements for the AFM revision. This amendment is prompted by the issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent erroneous navigational calculations, which could result in an increased risk of collision with terrain or other airplanes.
To prevent erroneous navigational calculations, which could result in an increased risk of collision with terrain or other airplanes, accomplish the following:
(a) Within 10 days after November 3, 1997 (the effective date of AD 97-21-10, amendment 39-10163), revise the Normal Procedures Section of the FAA-approved Airplane Flight Manual (AFM) by inserting a copy of Model A319/320/321 Flight Manual Temporary Revision 4.03.00/02, dated May 28, 1997, into the AFM.
Note 2: When the temporary revision specified in paragraph (a) of this AD has been incorporated into the general revisions of the AFM, the general revisions may be inserted in the AFM, provided the information contained in the general revisions is identical to that specified in Model A319/320/321 Flight Manual Temporary Revision 4.03.00/02.
(b) Within 18 months after the effective date of this AD, accomplish either paragraph (b)(1) or (b)(2) of this AD, in accordance with Airbus Service Bulletin A320-22-1063, Revision 01, dated October 8, 1999; A320-22-1064, dated September 15, 1998; A320-22-1065, dated October 28, 1998; A320-22-1067, Revision 01, dated July 7, 1999; A320-22-1068, dated December 9, 1998; or A320-22-1069, dated February 1, 1999; as applicable. Following accomplishment of either paragraph (b)(1) or (b)(2) of this AD, the AFM revision required by paragraph (a) of this AD may be removed from the AFM.
(1) Modify all existing on-board replaceable modules of the flight management guidance computers (FMGC) to incorporate software changes in accordance with the Accomplishment Instructions of the applicable service bulletin.
(2) Replace all existing FMGC's with new, improved FMGC's in accordance with the Accomplishment Instructions of the applicable service bulletin.
(c) Accomplishment of either the modification or replacement action required by paragraph (b) of this AD constitutes terminating action for the AFM requirements of paragraph (a) of AD 98-19-08, amendment 39-10750. Following accomplishment of either of those actions, remove the FAA-approved AFM revision required by that AD (Airbus A319/320/321 Airplane Flight Manual Temporary Revision 9.99.99/44, Issue 2, dated March 3, 1998).
(d) As of the effective date of this AD, no person shall install any FMGC part number B546BAM0205, B546CAM0101, B546BCM0204, B398BAM0207, B398AAM0410, B546CCM0101, B546CCM0102, B546CCM0103, or B398BCM0107; unless it has been modified in accordance with this AD.
(e)(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 97-21-10, amendment 39-10163, 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.
