AD 46-23-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Swift Museum Foundation, Inc. | GC-1A | Airworthiness Directives; Globe Models GC-1A and GC-1B Aircraft |
| aircraft | Swift Museum Foundation, Inc. | GC-1B | Airworthiness Directives; Globe Models GC-1A and GC-1B Aircraft |
Unsafe Condition
The rivet seam attaching the upper skin of the outer wing panels to the main spar has insufficient reinforcement due to an inadvertent error in manufacture, risking structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Increase the number of rivets in the seam from 1 1/2-inches to 4 3/4-inches outboard of the outer panel attachment bolt to not less than five, and add sufficient rivets from 4 3/4-inches to 11 1/2-inches outboard to achieve approximately 3/8-inch spacing. Use Cherry CR163-4-10 or AN 456-AD4 rivets.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than September 1, 1946
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Affected Aircraft
Globe Models GC-1A and GC-1B Aircraft with Serial Numbers 33 to 54 Inclusive, Plus 54, 56, 57, 58, 60, 61, and 64.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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