AD 76-16-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 401 | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 401A | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 401B | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 402 | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 402A | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 402B | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 402C | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
| aircraft | Cessna Aircraft Company | 414 | Airworthiness Directives; CESSNA AVIATION Models 401, 402 Series and 414 Airplanes |
Unsafe Condition
Possible failures of the engine attachment tangs of engine mount PN5002.
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Required Actions
Within 10 hours' time in service after the effective date, loosen engine attach bolts, compress rubber mounts with steel shims to reduce gap between forward tang and AN970 washer to no greater than 0.005 inches, and retorque bolts to 160-190 inch pounds. Visually inspect forward and aft tangs of all three engine attachment points with 8-power glass for cracks within 10 hours' time in service after effective date, and thereafter at intervals per specified time limits. Replace engine mount P/N 5002 if cracks detected before further flight.
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Compliance Time
Within 10 hours' time in service after the effective date of this AD
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Affected Aircraft
Cessna models 401 and 402 series airplanes and model 414 airplanes certificated in all categories, modified with Supplemental Type Certificate SA2424WE or SA117NW incorporating Allison turboprop engines.
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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