- Effective
- July 31, 1966
- Models
- BAC 1-11 200 Series, BAC 1-11 400 Series
- Data sheet
- TCDSA5EU
- Product
- Aircraft · Large airplane
- Amendment
- 39-255
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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The airworthiness directive
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.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.