AD 89-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vulcanair S.p.A. | P 68 | Airworthiness Directives; Partenavia Model P 68, P 68B, P 68C, P 68TC, P 68 "Observer", and P 68TC "Observer" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68 Observer | Airworthiness Directives; Partenavia Model P 68, P 68B, P 68C, P 68TC, P 68 "Observer", and P 68TC "Observer" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68B | Airworthiness Directives; Partenavia Model P 68, P 68B, P 68C, P 68TC, P 68 "Observer", and P 68TC "Observer" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68C | Airworthiness Directives; Partenavia Model P 68, P 68B, P 68C, P 68TC, P 68 "Observer", and P 68TC "Observer" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68C-TC | Airworthiness Directives; Partenavia Model P 68, P 68B, P 68C, P 68TC, P 68 "Observer", and P 68TC "Observer" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P68TC Observer | Airworthiness Directives; Partenavia Model P 68, P 68B, P 68C, P 68TC, P 68 "Observer", and P 68TC "Observer" Series Airplanes |
Unsafe Condition
Loss of structural integrity of the engine mounts due to cracks, circumferential scoring, corrosion, or absence of protective coating on the shank of the bolts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect engine mounting system bolts for cracks, scoring, corrosion, or coating issues using a 10x magnifier. Replace damaged bolts and ensure washers are properly installed with chamfered holes mating bolt heads. Torque bolts to 335-375 inch-pounds. Repeat inspection at each subsequent engine removal.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished after the last engine removal
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Vulcanair S.p.A. Models P 68, P 68B, P 68C, P 68TC, P 68 Observer, and P 68TC Observer (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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