66-16-03 BRITISH AIRCRAFT CORPORATION: Amdt. 39-255 Part 39 Federal Register July 1, 1966. Applies to Model BAC 1-11 Series Airplanes Equipped with Aluminum Alloy Rocking Lever, P/N CH504-008, in the Rudder Feel Simulator Unit.
Compliance required as indicated.
To prevent fatigue failure of the rocking lever in the rudder feel simulator unit, accomplish the following:
(a) Replace aluminum alloy rocking levers, P/N CH504-008, with 2,900 or more hours' time in service on the effective date of this AD with an unused part of the same part number or with steel rocking lever, P/N CH504-020 or CH504-021, within the next 100 hours' time in service.
(b) Replace aluminum alloy rocking levers, P/N CH504-008, with less than 2,900 hours' time in service on the effective date of this AD with an unused part of the same part number or with steel rocking lever, P/N CH504-020 or CH-504-021, before the accumulation of 3,000 hours' time in service.
(British Aircraft Corporation (BAC) One-Eleven Alert Service Bulletin 27-A-PM 1248 pertains to this subject.)
This directive effective July 31, 1966.