# AD 83-02-02: Structural Components

- Type: Airworthiness directive
- Status: Historical
- Products: Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and DHC-6-300
- Effective: February 4, 1983
- Superseded by: [AD 2008-03-01](https://openairdocs.org/ad/2008-03-01)
- Product type: Aircraft, Small airplane
- Amendment: 39-4553
- Registered aircraft: 88 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/22DEB8663A9F788086256A4E0051D26B.0001
- DRS record last changed: August 7, 2025
- Page: https://openairdocs.org/ad/83-02-02

## The airworthiness directive

83-02-02 DEHAVILLAND: Amendment 39-4553. Applies to DHC-6 Models 1, 100, 200, and 300 (all serial numbers) airplanes certificated in any category.

COMPLIANCE: Required on or before May 1, 1983, unless already accomplished.

To prevent catastrophic failure of the wing, wing carry through, and attaching structure, accomplish the following:

a) Modify and replace the structural components listed in DeHavilland Structural Components Service Life Limits Manual PSM 1-6-11, Revision 2, approved by DOT Canada August 29, 1978 in accordance with the respective schedules listed therein.

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

c) An equivalent method of compliance with this AD may be used when approved by the Manager, New York Aircraft Certification Office, Federal Aviation Administration, ANE- I70, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581.

This amendment becomes effective on February 4, 1983.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A9EA](https://openairdocs.org/tcds/A9EA): De Havilland Aircraft of Canada Limited; names 4 of 5 models: DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300

## 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: 88 (88 by airframe model, 0 by engine model)
- Makers: Dehavilland 84, Dehavilland Acft Of Canada 4

Models with the most aircraft:

- [Dehavilland DHC-6-300](https://openairdocs.org/model/dehavilland-dhc-6-300): 59 aircraft (airframe model)
- [Dehavilland DHC-6-200](https://openairdocs.org/model/dehavilland-dhc-6-200): 19 aircraft (airframe model)
- [Dehavilland DHC-6-100](https://openairdocs.org/model/dehavilland-dhc-6-100): 6 aircraft (airframe model)
- [Dehavilland Acft Of Canada DHC 6-300](https://openairdocs.org/model/dehavilland-acft-of-canada-dhc-6-300): 4 aircraft (airframe model)

All 4 models: https://openairdocs.org/ad/83-02-02/models.md
Every aircraft: https://openairdocs.org/ad/83-02-02/aircraft.md

## Related documents

- [AD 2008-03-01](https://openairdocs.org/ad/2008-03-01) (historical): Structural components · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Mar 6, 2008. Supersedes this AD

Its text cites no advisory circulars or STCs.

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