# Proposed AD FAA-2010-0853: The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-12-13
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 14, 2010, 75 FR 55691
- Comments due: October 29, 2010
- Became: [AD 2011-12-13](https://openairdocs.org/ad/2011-12-13)
- Docket: FAA-2010-0853 (https://www.regulations.gov/docket/FAA-2010-0853, where comments are filed)
- Project: 2010-NM-116-AD
- FR document: 2010-22847
- Official PDF: https://openairdocs.org/files/sha256/48/b4/48b4d77fe7d17ad55756b7517cd8070ae512913d0a78082d89252f510be72e07 (from https://www.govinfo.gov/content/pkg/FR-2010-09-14/pdf/2010-22847.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/09/14/2010-22847/airworthiness-directives-the-boeing-company-model-737-600--700--700c--800--900-and--900er-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C3C76AE32CBF16B88625779E0049A8BC.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0853

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD would require repetitive testing of the stabilizer takeoff warning switches, and corrective actions if necessary. This proposed AD results from reports that the warning horn did not sound during the takeoff warning system test of the S132 "nose up stab takeoff warning switch.'' We are proposing this AD to detect and correct a takeoff warning system switch failure, which could reduce the ability of the flightcrew to maintain the safe flight and landing of the airplane.

## Notices in this docket

- Sep 14, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-22847, comments due Oct 29, 2010 (https://www.federalregister.gov/documents/2010/09/14/2010-22847/airworthiness-directives-the-boeing-company-model-737-600--700--700c--800--900-and--900er-series)

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