# AD 68-14-03 R1: Erratic Rudder & Elevator Feel

- Type: Airworthiness directive
- Status: Current
- Products: Airbus BAC 1-11 200 Series and BAC 1-11 400 Series
- Effective: April 13, 1983
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-4608
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F3E3DFDB8D52171D862569A40053CE43.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/68-14-03-R1

## The airworthiness directive

68-14-03 R1 BRITISH AIRCRAFT CORPORATION: Amendment 39-619 as amended by Amendment 39-4608. Applies to Model BAC 1-11 200 and 400 Series airplanes.

Compliance required as indicated, unless already accomplished.

To prevent erratic functioning of the rudder and elevator feel simulator units and to provide a warning to the flight crew in the event of a malfunctioning of the rudder or elevator feel simulator units, accomplish the following:

  (a) Deleted by Amendment 39-4608.

  (b) For BAC 1-11 200 Series Airplanes.

Within the next 1,000 hours' time in service after the effective date of this AD, replace the 1/4 inch diameter hydraulic pipe run between the roof of the main undercarriage bay and the rear pressure bulkhead in the No. 1 and No. 2 hydraulic systems with either 5/16 inch or 3/8 inch diameter pipe, in accordance with British Aircraft Corporation Service Bulletins Nos. 29- PM3234 Revision 1 dated December 1, 1967, or 29-PM3345 Revision 3 dated February 28, 1968, or later ARB-approved revision or an equivalent approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium.

  (c) For BAC 1-11 200 and 400 Series Airplanes.

Within the next 1,000 hours' time in service after the effective date of this AD replace the restrictor assembly Hobson P/N CHA 504-396 with new restrictor assembly Hobson P/N CHA 504-502 in the rudder and elevator feel simulator units in accordance with British Aircraft Corporation Service Bulletin No. 27-PM3371 dated February 28, 1968, or later ARB-approved revision or an equivalent approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA.

  (d) For BAC 1-11 200 and 400 Series Airplanes.

Within the next 3,000 hours' time in service after the effective date of this AD modify the rudder feel simulator system by incorporating a warning indicator assembly in accordance with British Aircraft Corporation Service Bulletin No. 27-PM3372 dated February 15, 1968, or later ARB-approved revision or an equivalent approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA.

Amendment 39-619 became effective August 5, 1968.

This Amendment 39-4608 becomes effective April 13, 1983.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A5EU](https://openairdocs.org/tcds/A5EU): Airbus SAS; names 2 of 2 models: BAC 1-11 200 Series, BAC 1-11 400 Series

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.