# Proposed AD FAA-2012-0035: the Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-12-14
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 23, 2012, 77 FR 3187
- Comments due: March 8, 2012
- Became: [AD 2012-12-14](https://openairdocs.org/ad/2012-12-14)
- Docket: FAA-2012-0035 (https://www.regulations.gov/docket/FAA-2012-0035, where comments are filed)
- Project: 2011-NM-178-AD
- FR document: 2012-1202
- Official PDF: https://openairdocs.org/files/sha256/94/10/9410958a0f6d27ff55c583d192b61c7736a78d62ffb688e2d4579d73c2e40eb8 (from https://www.govinfo.gov/content/pkg/FR-2012-01-23/pdf/2012-1202.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/01/23/2012-1202/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C7DE2E6B320AB2E28625798E004D2A6D.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0035

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Model 767-200 and -300 series airplanes. This proposed AD was prompted by reports of fatigue cracking on the lower main sill inner chord of the hatch opening of the overwing emergency exit. This proposed AD would require repetitive inspections for cracking, corrosion damage, and any other irregularity of the lower main sill inner chord and surrounding structure, and repair if necessary. We are proposing this AD to detect and correct fatigue cracking on the lower main sill inner chord of the hatch opening of the overwing emergency exit, which could result in reduced structural integrity of the hatch opening of the overwing emergency exit and consequent rapid decompression of the airplane.

## Notices in this docket

- Jan 23, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-1202, comments due Mar 8, 2012 (https://www.federalregister.gov/documents/2012/01/23/2012-1202/airworthiness-directives-the-boeing-company-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.