# Proposed AD FAA-2021-0844: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-09-08
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 28, 2021, 86 FR 59665
- Comments due: December 13, 2021
- Became: [AD 2022-09-08](https://openairdocs.org/ad/2022-09-08)
- Docket: FAA-2021-0844 (https://www.regulations.gov/docket/FAA-2021-0844, where comments are filed)
- Project: AD-2021-00689-T
- FR document: 2021-23218
- Official PDF: https://openairdocs.org/files/sha256/47/c7/47c76a590e510dc764b9392d75032f68c19970d4a81b1ce38ec2a277de95ab69 (from https://www.govinfo.gov/content/pkg/FR-2021-10-28/pdf/2021-23218.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/10/28/2021-23218/airworthiness-directives-the-boeing-company-airplanes
- Page: https://openairdocs.org/proposed/FAA-2021-0844

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This proposed AD was prompted by reports of a missing shim at a joint common to the main torque box (MTB) skin panel and rear spar root fitting. This proposed AD would require inspecting the MTB skin panel and rear spar root fitting for cracking and delamination, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 28, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-23218, comments due Dec 13, 2021 (https://www.federalregister.gov/documents/2021/10/28/2021-23218/airworthiness-directives-the-boeing-company-airplanes)

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