AD 67-27-03

67-27-03 BRITISH AIRCRAFT: Amendment 39-762. Applies to Model BAC 1-11 200 and 400 Series airplanes.

Compliance required as indicated.

To prevent fatigue failures of the flap carriage links P/N AB09 A943 and post modification PM 2245 flap carriage links P/N AB09 A3657, accomplish the following:

(a) For airplanes equipped with carriage links P/N AB09 A943, within the next 500 landings after January 15, 1967, or before the accumulation of the number of landings specified in Column 2 or Column 3, as applicable, for the respective flap numbers specified in Column 1, whichever occurs later, and thereafter at intervals not to exceed the number of landings specified for that flap number and series of airplane, replace carriage links P/N AB09 A943 with new links of the same part number; or replace with carriage links P/N AB09 A3657. If carriage links P/N AB09 A3657 are used as replacements, they must be replaced in accordance with the requirements of paragraph (b).

(Column 1) (Column 2) (Column 3) Flap No. Number of Landings Number of Landings (link location) 200 Series Airplanes 400 Series Airplanes 1 3,000 2,000 2 10,000 8,000 3 24,000 16,000

(b) For airplanes equipped with carriage links P/N AB09 A3657, within the next 300 landings after the effective date of this AD or before the accumulation of the number of landings specified in Column 2 or Column 3, as applicable, for the respective flap number specified in Column 1, whichever occurs later, and thereafter at intervals not to exceed the number of landings specified for that flap number and series of airplane, replace carriage links P/N AB09 A3657 with new links of the same part number, or replace with carriage links P/N AB09 A943. If carriage links P/N AB09 A943 are used as replacements, they must be replaced in accordance with the requirements of paragraph (a).

(Column 1) (Column 2) (Column 3) Flap No. Number of Landings Number of Landings (link location)200 Series Airplanes 400 Series Airplanes 1 4,000 3,000 2 12,000 10,000 3 32,000 24,000