# Proposed AD FAA-2019-0525: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-01-18
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 25, 2019, 84 FR 35840
- Comments due: September 9, 2019
- Became: [AD 2020-01-18](https://openairdocs.org/ad/2020-01-18)
- Docket: FAA-2019-0525 (https://www.regulations.gov/docket/FAA-2019-0525, where comments are filed)
- FR document: 2019-15582
- Official PDF: https://openairdocs.org/files/sha256/76/94/7694cac92465ea3963b828989e3ea3068033174b20b382d4c72b13c5b7af234f (from https://www.govinfo.gov/content/pkg/FR-2019-07-25/pdf/2019-15582.pdf)
- Federal Register: https://www.federalregister.gov/documents/2019/07/25/2019-15582/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D3297A3C7D0843C386258442004E1F5C.0001
- Page: https://openairdocs.org/proposed/FAA-2019-0525

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2006-11-11, which applies to all The Boeing Company Model 757 airplanes. AD 2006-11-11 requires incorporating a new revision to the Airworthiness Limitations section of the Instructions of Continued Airworthiness to mandate certain repetitive inspections for fatigue cracking of principal structural elements (PSEs). Since AD 2006-11-11 was issued, the FAA has determined that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jul 25, 2019: Notice of proposed rulemaking (NPRM). (first notice), FR document 2019-15582, comments due Sep 9, 2019 (https://www.federalregister.gov/documents/2019/07/25/2019-15582/airworthiness-directives-the-boeing-company-airplanes)

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