# Proposed AD FAA-2007-0045: Boeing Model 747-200F, 747-300, 747- 400, and 747-400D Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-09-20
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 17, 2007, 72 FR 58768
- Comments due: December 3, 2007
- Became: [AD 2008-09-20](https://openairdocs.org/ad/2008-09-20)
- Docket: FAA-2007-0045 (https://www.regulations.gov/docket/FAA-2007-0045, where comments are filed)
- Project: 2007-NM-169- AD
- FR document: E7-20467
- Official PDF: https://openairdocs.org/files/sha256/29/30/293096977180a7ede5e931ae0a97c22525733b57379bdbe823b36f9811708978 (from https://www.govinfo.gov/content/pkg/FR-2007-10-17/pdf/E7-20467.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/10/17/E7-20467/airworthiness-directives-boeing-model-747-200f-747-300-747-400-and-747-400d-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/33BF3268C2D52F07862573770050572F.0001
- Page: https://openairdocs.org/proposed/FAA-2007-0045

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-200F, 747-300, 747-400, and 747-400D series airplanes. This proposed AD would require a detailed inspection to detect missing fasteners from the shear clip at a certain stub frame to auxiliary sill joint, and applicable related investigative and corrective actions. This proposed AD results from reports of missing fasteners from the shear clip of the stub frame to auxiliary sill joint and cracking of the adjacent exterior skin and internal doubler. We are proposing this AD to ensure that fasteners are installed in the shear clip of the stub frame to auxiliary sill joint. Missing fasteners could result in cracks in the adjacent exterior skin and internal doubler, which can propagate and result in loss of structural integrity and sudden in-flight decompression of the airplane.

## Notices in this docket

- Oct 17, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-20467, comments due Dec 3, 2007 (https://www.federalregister.gov/documents/2007/10/17/E7-20467/airworthiness-directives-boeing-model-747-200f-747-300-747-400-and-747-400d-series-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.