AIRWORTHINESS DIRECTIVE

CAA-AD-026/2001

Date of issue: March 22, 2001

AIRCRAFT - AIRCRAFT FLIGHT MANUAL - PERFORMANCE DATA (ATA 72)

Applicability: AIRBUS INDUSTRIE A310 and A300-600 aircraft, models A310-324, A310-325, A300 B4-622 and A300 B4-622R (equipped with Pratt & Whitney engines PW 4000), all serial numbers, except for aircraft fitted with current production FB2C fan blades (Phase 3) on both engines.

Note: Aircraft on which AIRBUS INDUSTRIE modification No. 10925 has been embodied are equipped with phase 3 engines, and are not subject to the requirements of this Airworthiness Directive (AD).

Effective date: May 17, 2001

Compliance: Required as indicated in DGAC AD 2001-086(B).

Remarks: The compliance of this AD must be recorded in Aircraft Logbook, where applicable the requirements of this AD must be integrated into Aircraft Technical Documentation. Address inquiries concerning this AD to: Civil Aviation Authority, Airworthiness Division, Ruzyne Airport, 160 08 Prague 6, Czech Republic, tel: 420 2 33320922, fax: 420 2 20562270.

Ing. Pavel MATOUŠEK
Director of Airworthiness Division
CAA CZ

DGAC AD No.: 2001-086(B)
AIRBUS INDUSTRIE

A310 and A300-600 aircraft

A310 and A300-600 aircraft equipped with PW 4000 engines - Performance data (ATA 72)

APPLICABILITY:

AIRBUS INDUSTRIE A310 and A300-600 aircraft, models A310-324, A310-325, A300 B4-622 and A300 B4-622R (equipped with Pratt & Whitney engines PW 4000), all serial numbers, except for aircraft fitted with current production FB2C fan blades (Phase 3) on both engines.

Note: Aircraft on which AIRBUS INDUSTRIE modification No. 10925 has been embodied are equipped with phase 3 engines, and are not subject to the requirements of this Airworthiness Directive (AD).

REASONS:

Some engines of the PW 4000 series fitted with the early production standards of fan blades (Phase 0/1 - FB2B or FB2T) do not produce the level of thrust indicated in the Flight Manual (AFM).

This thrust shortfall, due to the erosion of the fan blade leading edge, results in acceleration and climb performance lower than those specified in the AFM.

ACTIONS:

The following actions are rendered mandatory from the effective date of this AD.

From the effective date of this AD, unless already accomplished, introduce the following Temporary Revisions into the A310 and A300-600 Flight Manuals:

- A310 Flight Manual Temporary Revision 5.03.00/01

- A310 Flight Manual Temporary Revision 5.03.00/02

- A300-600 Flight Manual Temporary Revision 5.03.00/01

which incorporate the necessary performance adjustments.

Note: Knowing that this AD is not applicable to aircraft fitted with FB2C (Phase 3) fan blades on both engines, the operators of these aircraft, who have already introduced the above-referenced AFM Temporary Revisions (T.R.s), can remove these.

REF.:

- A310 Flight Manual Temporary Revision 5.03.00/01

- A310 Flight Manual Temporary Revision 5.03.00/02

- A300-600 Flight Manual Temporary Revision 5.03.00/01

EFFECTIVE DATE: MARCH 31, 2001