# Proposed AD FAA-2005-23213: Boeing Model 757 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-11-11
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 8, 2005, 70 FR 72939
- Comments due: January 23, 2006
- Became: [AD 2006-11-11](https://openairdocs.org/ad/2006-11-11)
- Docket: FAA-2005-23213 (https://www.regulations.gov/docket/FAA-2005-23213, where comments are filed)
- Project: 2005-NM-192-AD
- FR document: 05-23777
- Official PDF: https://openairdocs.org/files/sha256/58/b1/58b1abef321b1636ba5261344e973178375ab7a87356e35817f2bd2b1ba78eee (from https://www.govinfo.gov/content/pkg/FR-2005-12-08/pdf/05-23777.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/12/08/05-23777/airworthiness-directives-boeing-model-757-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FB5D2FD95200F5A4862570D1005EFD78.0001
- Page: https://openairdocs.org/proposed/FAA-2005-23213

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 757 series airplanes. The existing AD currently requires revising the Airworthiness Limitations Section of the maintenance manual (757 Airworthiness Limitations Instructions (ALI)) to incorporate certain inspections and compliance times to detect fatigue cracking of principal structural elements (PSEs). This proposed AD would require incorporating a new revision to the Airworthiness Limitations section of the Instructions of Continued Airworthiness to mandate certain repetitive inspections for fatigue cracking of PSEs. This proposed AD also would add airplanes to the applicability in the existing AD. This proposed AD results from a new revision to the ALI. We are proposing this AD to ensure that fatigue cracking of various PSEs is detected and corrected; such fatigue cracking could adversely affect the structural integrity of these airplanes.

## Notices in this docket

- Dec 8, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-23777, comments due Jan 23, 2006 (https://www.federalregister.gov/documents/2005/12/08/05-23777/airworthiness-directives-boeing-model-757-series-airplanes)

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