# AD 90-03-10: Tail Rotor Grips - Type: Airworthiness directive - Status: Current - Products: Arrow Falcon Exporters UH-1H, UH-1F, 204B, 205A, 205A-1, TH-1L, UH-1E, UH-1L, UH-1F, UH-1H, UH-1H, UH-1B and 24 more - Effective: October 18, 1991 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Rotorcraft - Amendment: 39-8029 - Docket: 90-ASW-09 - Registered aircraft: 442 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9F390F3A11F4748A86256A4D004E082B.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/90-03-10 ## The airworthiness directive 90-03-10 BELL HELICOPTER TEXTRON, INC. (BHTI); CALIFORNIA DEPARTMENT OF FORESTRY; GARLICK HELICOPTERS; HAWKINS AND POWERS AVIATION; HERCULES; INTERNATIONAL HELICOPTERS, INC.; LENAIR CORPORATION; OFFSHORE CONSTRUCTION; OREGON HELICOPTERS; PILOT PERSONNEL INTERNATIONAL; SMITH HELICOPTERS; SOUTHERN AERO CORPORATION; SOUTHWEST FLORIDA AVIATION; and WEST COAST FABRICATIONS: Amendment 39-8029. Docket No. 90-ASW-09. Final Rule of Priority Letter AD 90-03-10. Applicability: All Model 204B, 205A, 205A-1, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and TH-1L helicopters, certificated in any category, with aluminum tail rotor grips, P/N 204-011-728-19, installed. Compliance: Required before further flight, unless already accomplished. To prevent failure of a tail rotor grip, which could result in loss of tail rotor control, accomplish the following: (a) Determine the part numbers and serial numbers of the tail rotor grips installed on the helicopter. (b) If the tail rotor grip installed is P/N 204-011-728-19 and is identified with any serial number listed below, remove and replace the grip with an airworthy part before further flight: Serial Numbers: A3-66287 A3-66333 A3-66356 A3-66361 A3-66365 A3-66370 A3-66377 A3-67149 A3-67171 A3-67184 A3-67207 (c) In accordance with FAR Sections 21.197 and 21.199, the helicopter may be flown to a base where the inspection and grip replacement may be accomplished. (d) An alternate method of compliance which provides an equivalent level of safety, may be used if approved by the Manager, Rotorcraft Certification Office, Southwest Region, Federal Aviation Administration, Fort Worth, Texas 76193-0170, telephone (817) 624-5170. This Amendment (39-8029, AD 90-03-10) becomes effective on October 18, 1991, as to all persons except those persons to whom it was made immediately effective by Priority Letter AD 90-03-10 issued January 29, 1990, which contained this amendment. ## Affected data sheets (3) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS H1SW](https://openairdocs.org/tcds/H1SW): Bell Textron Inc.; names 3 of 5 models: 205A, 204B, 205A-1 - [TCDS H3SO](https://openairdocs.org/tcds/H3SO): Richards Heavylift Helo Inc.; names 1 of 4 models: UH-1A - [TCDS H6SO](https://openairdocs.org/tcds/H6SO): Southwest Florida Aviation International; names 1 of 4 models: SW205A-1 ## 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: 442 (442 by airframe model, 0 by engine model) - Makers: Bell 406, Williams Helicopter 7, Northwest Rotorcraft 6, Bell Helicopter 3, Southwest Florida 3, Arrow Falcon Exporters 2, Bell/Southwest Florida Aviatio 2, Hawkins & Powers 2, Richards Heavylift Helo 2, Rotorcraft Development 2 Models with the most aircraft: - [Bell UH-1H](https://openairdocs.org/model/bell-uh-1h): 291 aircraft (airframe model) - [Bell 205A-1](https://openairdocs.org/model/bell-205a-1): 56 aircraft (airframe model) - [Bell UH-1B](https://openairdocs.org/model/bell-uh-1b): 42 aircraft (airframe model) - [Bell 204-B](https://openairdocs.org/model/bell-204-b): 7 aircraft (airframe model) - [Bell UH-1E](https://openairdocs.org/model/bell-uh-1e): 6 aircraft (airframe model) - [Northwest Rotorcraft UH-1H](https://openairdocs.org/model/northwest-rotorcraft-uh-1h): 6 aircraft (airframe model) - [Williams Helicopter UH-1H](https://openairdocs.org/model/williams-helicopter-uh-1h): 6 aircraft (airframe model) - [Bell UH-1F](https://openairdocs.org/model/bell-uh-1f): 3 aircraft (airframe model) - [Southwest Florida UH-1H](https://openairdocs.org/model/southwest-florida-uh-1h): 3 aircraft (airframe model) - [Bell Helicopter UH-1H (205)](https://openairdocs.org/model/bell-helicopter-uh-1h-205): 3 aircraft (airframe model) - [Richards Heavylift Helo UH-1H](https://openairdocs.org/model/richards-heavylift-helo-uh-1h): 2 aircraft (airframe model) - [Bell/Southwest Florida Aviatio 205 A1](https://openairdocs.org/model/bell-southwest-florida-aviatio-205-a1): 2 aircraft (airframe model) - [Hawkins & Powers UH-1B](https://openairdocs.org/model/hawkins-powers-uh-1b): 2 aircraft (airframe model) - [Arrow Falcon Exporters UH-1H](https://openairdocs.org/model/arrow-falcon-exporters-uh-1h): 2 aircraft (airframe model) - [Rotorcraft Development UH-1H](https://openairdocs.org/model/rotorcraft-development-uh-1h): 2 aircraft (airframe model) - [Western International Avia UH-1H](https://openairdocs.org/model/western-international-avia-uh-1h): 2 aircraft (airframe model) - [Bell UH-1L](https://openairdocs.org/model/bell-uh-1l): 1 aircraft (airframe model) - [Bell-Colonial UH-1B](https://openairdocs.org/model/bell-colonial-uh-1b): 1 aircraft (airframe model) - [Bell-Sw Florida Avn UH-1B](https://openairdocs.org/model/bell-sw-florida-avn-uh-1b): 1 aircraft (airframe model) - [Precision Helicopters UH-1H](https://openairdocs.org/model/precision-helicopters-uh-1h): 1 aircraft (airframe model) All 23 models: https://openairdocs.org/ad/90-03-10/models.md Every aircraft: https://openairdocs.org/ad/90-03-10/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.