# Proposed AD FAA-2008-1117: Boeing Model 727 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-20-03
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 29, 2008, 73 FR 64284
- Comments due: December 15, 2008
- Became: [AD 2009-20-03](https://openairdocs.org/ad/2009-20-03)
- Docket: FAA-2008-1117 (https://www.regulations.gov/docket/FAA-2008-1117, where comments are filed)
- Project: 2008-NM-106-AD
- FR document: E8-25758
- Official PDF: https://openairdocs.org/files/sha256/ff/f9/fff9299d1346eadfded344454d258b2060cb119142f154b6f567db4cb5aa7f43 (from https://www.govinfo.gov/content/pkg/FR-2008-10-29/pdf/E8-25758.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/10/29/E8-25758/airworthiness-directives-boeing-model-727-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/66D9433CEA18D9BD862574F1004DFD67.0001
- Page: https://openairdocs.org/proposed/FAA-2008-1117

## Summary

We propose to adopt a new airworthiness directive (AD) for all Boeing Model 727 airplanes. This proposed AD would require inspections for cracking of the left- and right-side shear ties and web posts of the kickload beam and the adjacent structure in the vertical stabilizer, and corrective actions if necessary. This proposed AD results from a report of cracking of the left- and right-side web posts and shear ties of the kickload beam. We are proposing this AD to detect and correct cracking of the left- and right-side web posts and shear ties of the kickload beam, which, when coupled with failures in the adjacent structure, could result in structural failure of the vertical stabilizer, and loss of control of the airplane.

## Notices in this docket

- Oct 29, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-25758, comments due Dec 15, 2008 (https://www.federalregister.gov/documents/2008/10/29/E8-25758/airworthiness-directives-boeing-model-727-airplanes)

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