AD 65-11-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 23 | Airworthiness Directives; BEECH Model 23 Aircraft |
Unsafe Condition
Water entering the static lines through the fuselage static air ports could cause a system malfunction.
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Required Actions
Remove the tee fitting from the static line connection, connect a 52-inch length of 0.25-inch O.D. by 0.040-inch wall polyethylene tubing with a 262-P-1/4 union, place the pack nut and plastic ferrule on the tubing's other end, connect the tee fitting, remove original clips and attach the static line to the bulkhead, shorten tubing for gentle curves to prevent water trapping, and reconnect shortened lines to the tee using original or new parts.
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Compliance Time
within 100 hours' time in service after the effective date of this AD
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Affected Aircraft
BEECH Model 23 Aircraft Serial Numbers M-1 through M-334 except M-62
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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