# Proposed AD FAA-2010-0132: The Boeing Company Model 747-100, - 200B, and -200F Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-14-10
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 25, 2010, 75 FR 8554
- Comments due: April 12, 2010
- Became: [AD 2010-14-10](https://openairdocs.org/ad/2010-14-10)
- Docket: FAA-2010-0132 (https://www.regulations.gov/docket/FAA-2010-0132, where comments are filed)
- Project: 2009-NM-096-AD
- FR document: 2010-3819
- Official PDF: https://openairdocs.org/files/sha256/d3/25/d3251ef8d1602220c1db141b4535b404594b9e11f0f17a8d5ec3cd562a411cbb (from https://www.govinfo.gov/content/pkg/FR-2010-02-25/pdf/2010-3819.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/02/25/2010-3819/airworthiness-directives-the-boeing-company-model-747-100--200b-and--200f-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7BB1B9ADCDEB9DF0862576D50058F0E3.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0132

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Model 747-100, 747-200B, and - 200F series airplanes. The existing AD currently requires inspections to detect cracking in the upper row of fasteners holes of the skin lap joints in the fuselage lower lobe, and repair, if necessary. This proposed AD would reduce the maximum interval of the post-modification inspections. This proposed AD results from reports of fatigue cracking on modified airplanes. We are proposing this AD to detect and correct fatigue cracking in the longitudinal lap joints of the fuselage lower lobe, which could lead to the rapid decompression of the airplane and the inability of the structure to carry fail-safe loads.

## Notices in this docket

- Feb 25, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-3819, comments due Apr 12, 2010 (https://www.federalregister.gov/documents/2010/02/25/2010-3819/airworthiness-directives-the-boeing-company-model-747-100--200b-and--200f-series-airplanes)

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