AD 83-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vulcanair S.p.A. | P 68 | Airworthiness Directives; Partenavia Model P68, P68B, P68C, P68C-TC and P68 Observer Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68 Observer | Airworthiness Directives; Partenavia Model P68, P68B, P68C, P68C-TC and P68 Observer Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68B | Airworthiness Directives; Partenavia Model P68, P68B, P68C, P68C-TC and P68 Observer Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68C | Airworthiness Directives; Partenavia Model P68, P68B, P68C, P68C-TC and P68 Observer Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68C-TC | Airworthiness Directives; Partenavia Model P68, P68B, P68C, P68C-TC and P68 Observer Series Airplanes |
Unsafe Condition
Loosening of the stabilator support brackets due to insufficient torque on AN4-6A bolts attaching the horizontal stabilator torque tube support brackets to the fuselage frame.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Check and correct torque of AN4-6A bolts to 0.9 to 0.950 Kpm (78 to 83 in. lbs). Aircraft may be flown under FAR 21.197 to a location for compliance. Equivalent methods require FAA approval.
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Compliance Time
within 50 hours time-in-service from the effective date of this AD
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Affected Aircraft
Vulcanair S.p.A. Models P68, P68B, P68C, P68C-TC, P68 Observer (all serial numbers up to S/N 289, excluding S/Ns 234, 256, 259, 269, and 288)
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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