AD 59-17-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Revo, Incorporated | Colonial C-1 | Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft |
| aircraft | Revo, Incorporated | Colonial C-2 | Airworthiness Directives; Colonial Models C-1 and C-2 Aircraft |
Unsafe Condition
Failures in service of the two AN 4 bolts attaching the wing rear spar to the hull on each side at hull Station 138.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove, inspect, and replace, if damaged, the two AN 4 bolts. Remove only one bolt per side at a time and replace before removing the other bolt. Ensure torque does not exceed 70 inch-pounds.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours but not later than October 15, 1959, and at each 100 hours thereafter
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Revo, Incorporated Colonial C-1 and Colonial C-2 aircraft, all serial numbers
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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