AD 54-20-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aircraft Belt & Trim Corporation | Safety Belts | Airworthiness Directives; Aircraft Belt and Trim (Safety Belt): Model LBM-1900 (Dwg. No. 19001) |
Unsafe Condition
The belt assemblies of Model LBM-1900 (Dwg. No. 19001) Safety Belts manufactured prior to April 1, 1954, with LBM-1900-3 and -3A buckles were found to be under strength for a majority of specimens tested, indicating nonconformance with TSO-C22 standards.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace or remove the affected Safety Belts Model LBM-1900 (Dwg. No. 19001) manufactured prior to April 1, 1954, with LBM-1900-3 and -3A buckles. The belts must not be used in civil aircraft until they comply with TSO-C22 requirements.
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Compliance Time
Compliance required as soon as possible but not later than March 1, 1955.
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Affected Aircraft
Aircraft Belt & Trim Corporation Safety Belts Model LBM-1900 (Dwg. No. 19001) manufactured prior to April 1, 1954, with LBM-1900-3 and -3A buckles.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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