# Proposed AD FAA-2010-1043: McDonnell Douglas Corporation Model MD- 90-30 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-03-09
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 5, 2010, 75 FR 68245
- Comments due: December 20, 2010
- Became: [AD 2011-03-09](https://openairdocs.org/ad/2011-03-09)
- Docket: FAA-2010-1043 (https://www.regulations.gov/docket/FAA-2010-1043, where comments are filed)
- Project: 2010-NM-200-AD
- FR document: 2010-28080
- Official PDF: https://openairdocs.org/files/sha256/92/e2/92e26b6d46301bc460bc73f0cd44d486a69ea097f5732770e4cfc6e4689335ed (from https://www.govinfo.gov/content/pkg/FR-2010-11-05/pdf/2010-28080.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/11/05/2010-28080/airworthiness-directives-mcdonnell-douglas-corporation-model-md-90-30-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7623952526C890B1862577D200547F24.0001
- Page: https://openairdocs.org/proposed/FAA-2010-1043

## Summary

We propose to adopt a new airworthiness directive (AD) for all McDonnell Douglas Model MD-90-30 airplanes. This proposed AD would require installing new fire handle shutoff system wiring. This proposed AD was prompted by a possible latent failure in the fire handle shutoff relay circuit due to a lack of separation between engine wires. We are proposing this AD to minimize the possibility of a multiple engine shutdown due to single fire handle activation.

## Notices in this docket

- Nov 5, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-28080, comments due Dec 20, 2010 (https://www.federalregister.gov/documents/2010/11/05/2010-28080/airworthiness-directives-mcdonnell-douglas-corporation-model-md-90-30-airplanes)

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