AD 2007-18-04

Unless already done, do the following actions.

(1) For airplanes on which the date of issuance of the original French standard airworthiness certificate or the date of issuance of the original French export certificate of airworthiness is before March 1, 2007: Within 63 days after June 26, 2007, in accordance with the instructions of Airbus All Operators Telex (AOT) A330-24A3042, A340-24A4056, or A340-24A5020, all Revision 02, all dated April 12, 2007; as applicable: Inspect the inlet screen (last chance filter) for the generator scavenge-oil pump for signs of debris and, as applicable, apply all associated corrective actions before further flight.

(2) For Model A330 aircraft operating under MMEL (master minimum equipment list) Item 24-22-01 “AC Main Generation” or MMEL Item 36-11-01 “Bleed Air Supply System Failure” and on which the date of issuance of the original French standard airworthiness certificate or the date of issuance of the original French export certificate of airworthiness is before March 1, 2007: As of June 26, 2007, before each flight, perform a check of the differential pressure indicator button on the lube filter and the generator scavenge filter in accordance with the instructions of Airbus AOT A330-24A3042, Revision 02, dated April 12, 2007, until accomplishment of paragraph (g)(5) of this AD.

Note 1: The repetitive checks before each flight specified in paragraph (f)(2) of this AD are not required for airplanes operated under MMEL Item 36-11-01, provided the APU generator has been removed or deactivated in accordance with the instructions of Airbus AOT A330-24A3042, Revision 02, dated April 12, 2007.

(3) Actions done before June 26, 2007, in accordance with the applicable Airbus service information in Table 1 of this AD are acceptable for compliance with the corresponding provisions of paragraph (f) of this AD.

Unless already done, do the following actions.

(1) For airplanes on which the date of issuance of the original French standard airworthiness certificate or the date of issuance of the original French export certificate of airworthiness is on or before July 1, 2007: Within 30 days after the effective date of this AD, in accordance with the instructions of paragraph 4.2.1 of the applicable Airbus service information specified in Table 2 of this AD: Clean and inspect the APU Generator scavenge oil filter element and housing and inspect the APU generator drain plug to detect metallic debris, and apply all applicable associated corrective actions before further flight.

(2) Within 450 aircraft flight hours or 200 APU operating hours, whichever occurs later, after accomplishing the inspection required by paragraph (g)(1) of this AD, in accordance with the instructions of paragraph 4.2.2 of the applicable Airbus service information specified in Table 2 of this AD: Inspect the APU generator scavenge oil filter element and housing and the APU generator drain plug to detect metallic debris; and apply all applicable associated corrective actions before further flight. Repeat the inspections thereafter at intervals not to exceed 450 aircraft flight hours or 200 APU operating hours, whichever occurs later.

(3) For airplanes on which the date of issuance of the original French standard airworthiness certificate or the date of issuance of the original French export certificate of airworthiness is after July 1, 2007: Within 450 aircraft flight hours or 200 APU operating hours after the effective date of this AD, whichever occurs later, in accordance with the instructions of paragraph 4.2.2 of the applicable Airbus service information specified in Table 2 of this AD: Inspect the APU generator scavenge oil filter element and housing and the APU generator drain plug to detect metallic debris; and apply all applicable associated corrective actions before further flight. Repeat the inspections thereafter at intervals not to exceed 450 aircraft flight hours or 200 APU operating hours, whichever occurs later.

(4) Actions done before the effective date of this AD, in accordance with the applicable Airbus service information in Table 3 of this AD are acceptable for compliance with the corresponding provisions of paragraph (g) of this AD.

(5) For Model A330 aircraft operating under MMEL Item 24-22-01, “AC Main Generation,” or MMEL Item 36-11-01, “Bleed Air Supply System Failure”: Unless the APU generator has been deferred in accordance with the MMEL by deactivation (quill shaft removed) or removal, the inspection required by paragraph (g)(2) or (g)(3), as applicable, of this AD must be performed prior to the first flight of the specified MMEL repair time interval. Accomplishing the actions in this paragraph terminates the actions required by paragraph (f)(2) of this AD.

Note 2: For A330 aircraft, MMEL Item 24-22-01 (AC Main Generation) and/or MMEL Item 36-11-01 (Bleed Air Supply System Failure) require that the APU be used during the entire flight.

Note 3: This AD differs from the MCAI and/or service information as follows: No differences.