# AD 87-10-12: Leading Edge Wing Ribs

- Type: Airworthiness directive
- Status: Current
- Products: Vulcanair P 68, P 68B, P 68C and P 68C-TC
- Effective: June 1, 1987
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-5614
- Registered aircraft: 36 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BE35B78DA74EAFD186256A4D0044F8DE.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/87-10-12

## The airworthiness directive

87-10-12 PARTENAVIA COSTRUZIONE AERONAUTICHE, S.p.A.: Amendment 39-5614. Applies to Models P 68, P 68B, P 68C (Serial Numbers (S/N) 1 through 250), and P 68C-TC (S/N's 300-1TC through 300-22TC) airplanes certificated in any category.

Compliance: Required as indicated, unless already accomplished.

To prevent possible loss of control and structural failure, accomplish the following:

  (a) Within the next 100 hours time-in-service (TIS) after the effective date of this AD, and each 100 hours TIS thereafter, visually and tactilely (by touch) inspect the composite leading edge wing ribs for cracking, and the composite wing leading edge for debonding from the ribs of both wings using the procedure and locally fabricated tool described in the "INSTRUCTIONS" section of Partenavia Service Bulletin (S/B) No. 67, Revision 1, dated November 5, 1986. (The tool is used to exert force on the ribs to check for lack of stiffness by tactile inspection.) If a crack or debonding is found,prior to further flight, remove the wing leading edge and repair the cracks or debonds as described by the repair "INSTRUCTIONS" in Partenavia Service Information (SI) No. 21, dated August 30, 1985.

  (b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

  (c) An equivalent means of compliance with this AD may be used if approved by the Manager, Brussels Aircraft Certification Office, AEU-100, Europe, Africa, and Middle East Office, c/o American Embassy, 1000 Brussels, Belgium; Telephone 513.38.30, extension 2710/2711.

All persons affected by this directive may obtain copies of the document(s) referred to herein upon request to Partenavia Costruzione Aeronautiche, S.p.A., via Cava, Naples, Italy; or may examine the document(s) referred to herein at FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment 39-5614 becomes effective on June 1, 1987.

## 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 4 of 10 models: P.68C-TC, P.68B, P.68, P.68C

## 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: 36 (36 by airframe model, 0 by engine model)
- Makers: Partenavia 31, Vulcanair 5

Models with the most aircraft:

- [Partenavia P.68C](https://openairdocs.org/model/partenavia-p-68c): 20 aircraft (airframe model)
- [Partenavia P68B](https://openairdocs.org/model/partenavia-p68b): 5 aircraft (airframe model)
- [Partenavia P 68 C/TC](https://openairdocs.org/model/partenavia-p-68-c-tc): 5 aircraft (airframe model)
- [Vulcanair P68C](https://openairdocs.org/model/vulcanair-p68c): 5 aircraft (airframe model)
- [Partenavia P68](https://openairdocs.org/model/partenavia-p68): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/87-10-12/models.md
Every aircraft: https://openairdocs.org/ad/87-10-12/aircraft.md

Its text cites no advisory circulars or STCs.

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