AD 74-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | B19 | Airworthiness Directives; BEECH Models B19, C23, and B24R Airplanes |
| aircraft | Textron Aviation Inc. | B24R | Airworthiness Directives; BEECH Models B19, C23, and B24R Airplanes |
| aircraft | Textron Aviation Inc. | C23 | Airworthiness Directives; BEECH Models B19, C23, and B24R Airplanes |
Unsafe Condition
Restricted fuel tank vent lines could cause engine power loss due to kinks, bends, or twists in the fuel vent lines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect fuel vent lines in both wings for kinks, bends, or twists; remove obstructions, splice replacement lines with P/N 262P 1/4 union if necessary, verify vent lines are open by blowing air into outlets, and ensure proper routing without excess tubing.
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Compliance Time
within 25 hours' time in service after the effective date of this AD
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Affected Aircraft
BEECH Models B19 (Serial Numbers MB-606 thru MB-628); C23 (Serial Numbers M-1477 thru M-1496 and M-1501); and B24R (Serial Numbers MC-159 thru MC-192, MC-195, MC-197 and MC-198)
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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