AD 87-04-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vulcanair S.p.A. | P 68 | Airworthiness Directives; Partenavia Models P-68, P-68B, P-68C, P-68C-TC, P68 "OBSERVER" and P68TC "OBSERVER" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68 Observer | Airworthiness Directives; Partenavia Models P-68, P-68B, P-68C, P-68C-TC, P68 "OBSERVER" and P68TC "OBSERVER" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68B | Airworthiness Directives; Partenavia Models P-68, P-68B, P-68C, P-68C-TC, P68 "OBSERVER" and P68TC "OBSERVER" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68C | Airworthiness Directives; Partenavia Models P-68, P-68B, P-68C, P-68C-TC, P68 "OBSERVER" and P68TC "OBSERVER" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P 68C-TC | Airworthiness Directives; Partenavia Models P-68, P-68B, P-68C, P-68C-TC, P68 "OBSERVER" and P68TC "OBSERVER" Series Airplanes |
| aircraft | Vulcanair S.p.A. | P68TC Observer | Airworthiness Directives; Partenavia Models P-68, P-68B, P-68C, P-68C-TC, P68 "OBSERVER" and P68TC "OBSERVER" Series Airplanes |
Unsafe Condition
Interference between the brake oil line and aileron control cable could cause loss of braking and/or loss of aileron control.
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Required Actions
Inspect the aileron control cable for interference with the brake oil line as per Service Bulletin 68. If discrepancies exist, replace damaged oil tube and aileron control cable, install a clamp (MS 21919-DG9), and ensure proper installation. For serial numbers 299-340, also cut an inspection hole, manufacture a cover plate, and inspect the cable. Equivalent compliance may be approved.
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Compliance Time
within 50 hours time-in-service (TIS) after the effective date of this AD
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Affected Aircraft
Vulcanair S.p.A. Models P-68, P-68B, P-68C, P-68C-TC, P68 'OBSERVER', and P68TC 'OBSERVER' (Serial Numbers 1 to 340 inclusive) equipped with photogrammetric hatch.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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