# AD 77-16-08: Wing Panels

- Type: Airworthiness directive
- Status: Current
- Products: Eiriavion PIK-20D
- Effective: August 8, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Glider
- Amendment: 39-3005
- Registered aircraft: 25 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2023265B166E9AD386256A38004CF9ED.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-16-08

## The airworthiness directive

77-16-08 EIRIAVION OY (FORMERLY MOLINO OY): Amendment 39-3005. Applies to Model PIK-20D sailplanes with serial numbers 20510 through 20532, 20534 through 20540, 20542 through 20544, 20546, 20548, 20552, 20555, and 20556.

To prevent separation of wing upper panel spar cap and wing main spar shear web, before further flight, unless already accomplished, comply with paragraph (a), (b), or (c).

  (a) Replace wing panels with new wing panels identified by the manufacturer as serviceable replacements. (b) Repair existing wing panels in accordance with appendix 1 of Eiriavion Service Bulletin No. M 17, dated June 17, 1977, at an FAA certificated repair station that is a manufacturer's authorized repair facility. Following rebonding, visually inspect the affected area to ensure that the new resin forms a continuous bond on both sides of the wing shear web for its full length.

  (c) Repair in accordance with an alternate means of compliance which must be approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, c/o American Embassy, Brussels, Belgium.

NOTE: Copies of the applicable service bulletin are available at the following manufacturer's authorized repair facilities:

Smitty's Soaring Service Deansboro Road Route 12B Clinton, New York 13323

Sailplane Repair Service, Inc. Rich Roberts 216 Commerce Drive P.O. Box 1462 Fort Collins, Colorado 80522

This amendment is effective August 8, 1977, as to all persons except those persons to whom it was made immediately effective by the telegram dated July 7, 1977, which contained this amendment.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS G31EU](https://openairdocs.org/tcds/G31EU): Eiriavion Oy; names 1 of 3 models: PIK-20D

## 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: 25 (25 by airframe model, 0 by engine model)
- Makers: Eiriavion 25

Models with the most aircraft:

- [Eiriavion PIK 20D](https://openairdocs.org/model/eiriavion-pik-20d): 25 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/77-16-08/models.md
Every aircraft: https://openairdocs.org/ad/77-16-08/aircraft.md

Its text cites no advisory circulars or STCs.

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