AD 69-03-03

69-03-03 BRITISH AIRCRAFT CORPORATION: Amdt. 39-719. Applies to Model BAC 1-11, 200 and 400 Series airplanes.

Compliance required as indicated, unless already accomplished.

To prevent possible jamming of aileron controls due to the aileron tab filler and modification plate assembly block, Part Number AB11/A1303 or AK11/A499, coming loose and fouling between the aileron and the wing structure, accomplish the following:

(a) Within 75 hours' time in service after the effective date of this AD and thereafter at intervals not to exceed 150 hours' time in service from the last inspection, inspect the right and left aileron tabs for proper bonding within the tab structure of the filler and modification plate assembly P/N AB11/A1303 or AK11/A499 in accordance with British Aircraft Corporation BAC 1-11 Alert Service Bulletin No. 57-A-PM 3793, Issue 2, or later ARB-approved issue or FAA- approved equivalent.

(b) If the filler and modification plate assembly is found to be loose during the inspection required by paragraph (a), before next flight, remove the assembly completely, and re- install the modification plate in accordance with BAC Modification No. 3793.

(c) The repetitive inspections required by paragraph (a) of this AD may be discontinued after the existing filler and modification plate assembly is permanently secured by the addition of a 1/8" diameter blind rivet or after the incorporation of BAC Modification No. 3793.

This amendment becomes effective February 14, 1969.