# Proposed AD FAA-2012-0299: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-25-13
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 27, 2012, 77 FR 18137
- Comments due: May 11, 2012
- Became: [AD 2012-25-13](https://openairdocs.org/ad/2012-25-13)
- Docket: FAA-2012-0299 (https://www.regulations.gov/docket/FAA-2012-0299, where comments are filed)
- Project: 2011-NM-029-AD
- FR document: 2012-7283
- Official PDF: https://openairdocs.org/files/sha256/89/2c/892cc0f0905dc86b9e54a6c3ca3ea25616519371e021b99e73826496b8994e50 (from https://www.govinfo.gov/content/pkg/FR-2012-03-27/pdf/2012-7283.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/03/27/2012-7283/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/379FE46E3D1EA65F862579CE0046CB47.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0299

## Summary

We propose to adopt a new airworthiness directive (AD) for all Boeing Model 747-100, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400F, and 747SR series airplanes. This proposed AD was prompted by reports of broken and damaged latch pin retention bolts of the main deck side cargo door (MDSCD), latch pin migration, and broken latch pin fittings. This proposed AD would require various repetitive inspections of the MDSCD latch pin fittings, measuring the latch pin, and related investigative and corrective actions if necessary; and modifying the latch pin fittings and installing new latch pins and latch pin fasteners. We are proposing this AD to prevent loss of the cargo door and rapid depressurization of the airplane.

## Notices in this docket

- Mar 27, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-7283, comments due May 11, 2012 (https://www.federalregister.gov/documents/2012/03/27/2012-7283/airworthiness-directives-the-boeing-company-airplanes)

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