AD 72-14-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23-250 | Airworthiness Directives; Piper Models PA-23-250 and PA-E23-250 Series Aircraft |
| aircraft | Piper Aircraft Inc. | PA-23-250 (Navy UO-1) | Airworthiness Directives; Piper Models PA-23-250 and PA-E23-250 Series Aircraft |
| aircraft | Piper Aircraft Inc. | PA-E23-250 | Airworthiness Directives; Piper Models PA-23-250 and PA-E23-250 Series Aircraft |
Unsafe Condition
Cracks, flaking, burning, distortion, and exhaust gas leaks at flanges and joints in the engine exhaust system stacks, manifolds, support tubes, brackets, and slip joint inside the alternate air heat shroud.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect exhaust system components for cracks, flaking, burning, distortion, and leaks. Replace defective parts before further flight. Adjust and align ball joint stack assemblies and supports per Piper Service Bulletin No. 319 or equivalent approved method.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service after the effective date of this AD, unless already accomplished within the last 50 hours and thereafter at intervals not to exceed 100 hours
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Affected Aircraft
Piper Models PA-23-250 and PA-E23-250 series aircraft Serial Nos. 27-2505 and up equipped with non-supercharged engine and certificated in all categories.
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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