# Proposed AD FAA-2005-22427: British Aerospace Model BAC 1-11 200 and 400 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-23-15
- Products: British Aerospace
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 16, 2005, 70 FR 54671
- Comments due: October 17, 2005
- Became: [AD 2005-23-15](https://openairdocs.org/ad/2005-23-15)
- Docket: FAA-2005-22427 (https://www.regulations.gov/docket/FAA-2005-22427, where comments are filed)
- Project: 2004-NM-263-AD
- FR document: 05-18402
- Official PDF: https://openairdocs.org/files/sha256/87/ae/87ae0cdfe974d0f858c81e877361f92607ac51e973c5243d9db6e7377620b522 (from https://www.govinfo.gov/content/pkg/FR-2005-09-16/pdf/05-18402.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/09/16/05-18402/airworthiness-directives-british-aerospace-model-bac-1-11-200-and-400-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F401054FA1F3CA238625707E005E2942.0001
- Page: https://openairdocs.org/proposed/FAA-2005-22427

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all British Aerospace Model BAC 1-11 200 and 400 series airplanes. This proposed AD would require revising the airplane flight manual (AFM) to contain applicable AFM amendments, which advise the flightcrew of information pertaining to safely operating the fuel system. The proposed AD would also require revising the FAA-approved maintenance program to include certain repetitive maintenance tasks intended to improve the safety of the fuel system. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent potential ignition sources inside the fuel system, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

## Notices in this docket

- Sep 16, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-18402, comments due Oct 17, 2005 (https://www.federalregister.gov/documents/2005/09/16/05-18402/airworthiness-directives-british-aerospace-model-bac-1-11-200-and-400-series-airplanes)

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