# Proposed AD FAA-2016-8848: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-10-21
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 30, 2016, 81 FR 59541
- Comments due: October 14, 2016
- Became: [AD 2017-10-21](https://openairdocs.org/ad/2017-10-21)
- Docket: FAA-2016-8848 (https://www.regulations.gov/docket/FAA-2016-8848, where comments are filed)
- Project: 2016-NM-054-AD
- FR document: 2016-20673
- Official PDF: https://openairdocs.org/files/sha256/3e/2c/3e2cb7cb85ac13fee325d84ded20c4d86a0623719a7d34cd9809b2aa7db32f7f (from https://www.govinfo.gov/content/pkg/FR-2016-08-30/pdf/2016-20673.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/08/30/2016-20673/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D071A3F15BAA7EC8625801F0052B36F.0001
- Page: https://openairdocs.org/proposed/FAA-2016-8848

## Summary

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-300, -400, and -500 series airplanes. This proposed AD was prompted by an evaluation by the design approval holder (DAH) indicating that the fuselage skin is subject to widespread fatigue damage (WFD). This proposed AD would require modification of the lap joint, including related investigative actions and corrective actions if necessary. This proposed AD also would require repetitive post-modification inspections for cracking of the skin at critical fastener rows, and corrective actions if necessary. We are proposing this AD to detect and correct cracks at the lap joint skin that could link up and result in rapid decompression and loss of structural integrity of the airplane.

## Notices in this docket

- Aug 30, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-20673, comments due Oct 14, 2016 (https://www.federalregister.gov/documents/2016/08/30/2016-20673/airworthiness-directives-the-boeing-company-airplanes)

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