# Proposed AD FAA-2004-18728: Boeing Model 747-400 and -400F Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-22-10
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 6, 2004, 69 FR 47811
- Comments due: September 20, 2004
- Became: [AD 2004-22-10](https://openairdocs.org/ad/2004-22-10)
- Docket: FAA-2004-18728 (https://www.regulations.gov/docket/FAA-2004-18728, where comments are filed)
- Project: 2003-NM-176-AD
- FR document: 04-17989
- Official PDF: https://openairdocs.org/files/sha256/93/da/93da546c58e935929c736ff659e727c4454298869d3cae6ef8768d7da4bd25cd (from https://www.govinfo.gov/content/pkg/FR-2004-08-06/pdf/04-17989.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/08/06/04-17989/airworthiness-directives-boeing-model-747-400-and--400f-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9FD0D0DC543C339A86256EE80053C527.0001
- Page: https://openairdocs.org/proposed/FAA-2004-18728

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-400 and -400F series airplanes. This proposed AD would require a detailed inspection(s) for cracks and fractures of the side guide support fittings in the lower lobe cargo compartments; and applicable investigative/corrective actions and operational limitations, if necessary. This proposed AD also would require a terminating action for the repetitive inspections. This proposed AD is prompted by reports of cracked/fractured side guide support fittings in the aft, lower lobe cargo compartment. We are proposing this AD to prevent cracked/fractured side guide support fittings in the lower lobe cargo compartments, which could result in unrestrained cargo shifting in flight and damaging the airplane structure or systems, and consequent reduced controllability of the airplane.

## Notices in this docket

- Aug 6, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-17989, comments due Sep 20, 2004 (https://www.federalregister.gov/documents/2004/08/06/04-17989/airworthiness-directives-boeing-model-747-400-and--400f-series-airplanes)

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