# Proposed AD FAA-2017-0776: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-09-08
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 15, 2017, 82 FR 38623
- Comments due: September 29, 2017
- Became: [AD 2018-09-08](https://openairdocs.org/ad/2018-09-08)
- Docket: FAA-2017-0776 (https://www.regulations.gov/docket/FAA-2017-0776, where comments are filed)
- FR document: 2017-16780
- Official PDF: https://openairdocs.org/files/sha256/ad/51/ad5133442a050c3c996f1ae2543bc87e6d2c2d01ae9739968456b46c9655e2e8 (from https://www.govinfo.gov/content/pkg/FR-2017-08-15/pdf/2017-16780.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/08/15/2017-16780/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2098873320FB489F8625817D004F2B2C.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0776

## Summary

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-200, -300, -400, and -500 series airplanes. This proposed AD was prompted by reports of cracks in the frame web adjacent to the air-conditioning support brackets. This proposed AD would require an inspection for any air conditioning bracket assembly or intercostal, and depending on the results, repetitive inspections for cracking of certain locations and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 15, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-16780, comments due Sep 29, 2017 (https://www.federalregister.gov/documents/2017/08/15/2017-16780/airworthiness-directives-the-boeing-company-airplanes)

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