# AD 81-07-03: Propeller Pitch Control System

- Type: Airworthiness directive
- Status: Current
- Products: Vulcanair P 68 and P 68B
- Effective: April 2, 1981
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-4069
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/715E11046BD9213986256A4D0044A81E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/81-07-03

## The airworthiness directive

81-07-03 PARTENAVIA COSTRUZIONI AERONAUTICHE S.p.A.: Amendment 39-4069. Applies to Model P68 and P68B series airplanes, serial numbers 1 to 160 inclusive, certificated in all categories, which have a Woodward propeller governor installed but do not have a ball joint end, P/N 7.5077-1, installed on the pitch control flexible cable.

Compliance is required as indicated, unless already accomplished.

To preclude failure of the propeller pitch control system, accomplish the following:

  (a) Within 25 hours time in service after the effective date of this AD, or within 50 hours time in service since the last inspection, whichever occurs later, and every 50 hours time in service thereafter, inspect the propeller pitch control system for play between the ball joint, P/N 7.5021-3, and the joint end, P/N 7.5021-1, in accordance with Partenavia Service Bulletin 37, Revision 2, dated November 22, 1978, or an FAA-approved equivalent.

  (b) If play is not found during the inspection required in paragraph (a) of this AD, return airplane to service.

  (c) If play is found during the inspection required in paragraph (a) of this AD, adjust the propeller pitch control system as necessary in accordance with Part I, "Instructions", of Partenavia Service Bulletin 37, Revision 2, dated November 22, 1978, or an FAA-approved equivalent, or install a new joint end, P/N 7.5021.1, and return to service.

  (d) The inspections required by this AD are no longer required with the installation of Partenavia Kit P/N 68-005 installed in accordance with Partenavia Service Instruction No. 2, dated July 14, 1978, or an FAA-approved equivalent.

  (e) If an equivalent means of compliance is used in complying with this AD, that equivalent must be approved by the Chief, Aircraft Certification Staff, Europe, Africa and Middle East Office, c/o American Embassy, Brussels, Belgium.

The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Partenavia Costruzioni Aeronautiche S.p.A., Via Cava, Casoria - Naples, Italy. These documents may be examined at FAA Headquarters, Room 916, 800 Independence Avenue, SW., Washington, DC 20591.

This amendment becomes effective April 2, 1981.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A31EU](https://openairdocs.org/tcds/A31EU): Vulcanair S.p.A.; names 2 of 10 models: P.68B, P.68

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 6 (6 by airframe model, 0 by engine model)
- Makers: Partenavia 6

Models with the most aircraft:

- [Partenavia P68B](https://openairdocs.org/model/partenavia-p68b): 5 aircraft (airframe model)
- [Partenavia P68](https://openairdocs.org/model/partenavia-p68): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/81-07-03/models.md
Every aircraft: https://openairdocs.org/ad/81-07-03/aircraft.md

Its text cites no advisory circulars or STCs.

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