67-14-05 BRITISH AIRCRAFT: Amdt. 39-398 Part 39 Federal Register April 14, 1967. Applies to Model BAC 1-11 200 Series Airplanes.
Compliance required as indicated.
To prevent fatigue failure of the nose landing gear steering jack cylinder gland nut, accomplish the following:
(a) Replace aluminum alloy gland nuts P/N AB44-229 having less than 4,900 hours' time in service on the effective date of this AD with unused aluminum alloy gland nuts of the same part number or with steel gland nuts P/N AB44-1793, before the accumulation of 5,000 hours' time in service.
(b) Replace aluminum alloy gland nuts P/N AB44-229 having 4,900 or more hours' time in service on the effective date of this AD with unused aluminum alloy gland nuts having the same part number or with steel gland nuts P/N AB44-1793, within the next 100 hours' time in service.
(c) Aluminum alloy gland nuts P/N AB44-229 installed as replacement parts in complying with either (a) or (b) must be replaced before the accumulation of 5,000 hours' time in service.
(British Aircraft Corporation (BAC) One-Eleven Alert Service Bulletin 32-A-PM 2496 pertains to this subject.)
This directive effective May 14, 1967.