| AD Number | 84-18-03 R1 | Status | Active |
| Effective Date | February 22, 1985 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-4997 |
| Product Type | ["Aircraft"] | Product Subtype | ["Rotorcraft"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | California Department of Forestry International Helicopters, Inc. Richards Heavylift Helo, Inc. Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation Rotorcraft Development Corporation San Joaquin Helicopters Tamarack Helicopters, Inc. |
| Model(s) | UH-1F UH-1B UH-1A UH-1B UH-1B UH-1E UH-1L UH-1B UH-1F |
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.