# AD 84-18-03 R1: Clevis Inspection

- Type: Airworthiness directive
- Status: Current
- Products: California Department of Forestry UH-1F, UH-1B, UH-1A, UH-1B, UH-1B, UH-1E, UH-1L, UH-1B and UH-1F
- Effective: February 22, 1985
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-4997
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EE6F7ECAB2A00C1A86256A4D0073BF0E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/84-18-03-R1

## The airworthiness directive

84-18-03 R1 GARLICK HELICOPTERS, HAWKINS AND POWERS AVIATION, INC., WILCO AVIATION, CALIFORNIA DEPARTMENT OF FORESTRY, PILOT PERSONNEL INTERNATIONAL, INC., AND INTERNATIONAL HELICOPTER, INC. (BELL HELICOPTER TEXTRON, INC.): Amendment 39-4899 as amended by Amendment 39-4997. Applies to Model UH-1 series helicopters certificated in the restricted category.

Compliance is required within 10 hours time in service, unless already accomplished, after September 6, 1984, for Garlick Helicopters, Hawkins and Powers Aviation, Inc., and Wilco Aviation UH-1 series helicopters.

Compliance is required within 10 hours time in service, unless already accomplished, after the effective date of this amendment for California Department of Forestry, Pilot Personnel International, Inc., and International Helicopter, Inc., UH-1 series helicopters.

To detect any improperly repaired or cracked main rotor pitch change link clevis and to prevent possible failure of a clevis, accomplish the following one-time inspection of each clevis, P/N 204-011-136-1 (FSN 5340-00-839-3934).

  (a) Visually inspect the exposed surfaces of the clevis using a 5-power or higher magnifying glass. If any surface with pits has a golden or silver color within a pit, the clevis has been replated and must be removed before further flight.

  (b) Visually inspect the exposed threaded area of the clevis shank, above the jam nut, for crack indications. If a crack indication is found, the part must be removed and additionally inspected for cracks using magnetic particle or equivalent inspection method.

  (c) If a clevis has been replated or has a crack, the clevis must be removed before further flight. Install a serviceable clevis as prescribed in the appropriate military model maintenance or overhaul manual.

  (d) Compliance with UH-1 series aircraft military message dated July 13, 1984, from Commander AVSCOM satisfies this AD.

Amendment 39-4899 became effective September 6, 1984.This Amendment 39-4997 becomes effective on February 22, 1985.

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H2NM](https://openairdocs.org/tcds/H2NM): California Department of Forestry; names 1 of 1 models: UH-1F
- [TCDS H3SO](https://openairdocs.org/tcds/H3SO): Richards Heavylift Helo Inc.; names 1 of 4 models: UH-1A

## 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: 2 (2 by airframe model, 0 by engine model)
- Makers: Hawkins & Powers 2

Models with the most aircraft:

- [Hawkins & Powers UH-1B](https://openairdocs.org/model/hawkins-powers-uh-1b): 2 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/84-18-03-R1/models.md
Every aircraft: https://openairdocs.org/ad/84-18-03-R1/aircraft.md

Its text cites no advisory circulars or STCs.

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