# AD 89-22-01 R1 L: Main Rotor Blades - Type: Airworthiness directive - Status: Current - Products: Bell Helicopter Textron Canada 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1 and 206L-3 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Rotorcraft - Docket: 89-ASW-54 - Registered aircraft: 1,179 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5C265B094829EEA186256A5B00482771.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/89-22-01-R1-L ## The airworthiness directive 89-22-01 R1 BELL HELICOPTER TEXTRON, INC. (BHTI): Priority Letter AD 89-22-01 as revised by Priority Letter AD 89-22-01 R1. Docket No. 89-ASW-54. Applicability: Model 206A, 206B, 206L, 206L-1, and 206L-3 helicopters, certificated in any category, with main rotor blades part numbers (P/N) 206-015-001-001, 206-015-001-103, 206-015-001-105, or 206-010-200-033 installed. Compliance: Required before further flight, unless already accomplished. To prevent failure and separation of the main rotor blades and subsequent loss of the helicopter, accomplish the following: (a) Visually inspect the Model 206A and 206B main rotor blades and determine if one of the following S/N blades is installed: TAC-0089, TAC-0542, TAC-0607, TAC-0614, TAC-0624, TAC-1643, TAC-1749, TAC-1776, TAC-1831, TAC-1911, TAC-1922, TAC-2399, TAC-2768, TAC-5742, TKK-9794, TKK-9883, or TKK-9933. If any one of these main rotor blades is installed, remove and replace with a serviceable part prior tofurther flight. (b) Visually inspect the Model 206L, 206L-1, and 206L-3 main rotor blades and determine if one of the following S/N blades is installed: T-92, T-245, T-417, TLY-0075, TLY- 0095, TLY-0764, TLY-0770, TLY-0973, TLY-1438, TLY-1619, TLY-1653, TLY-1697, TLY- 1766, TLY-1801, TLY-1858, TLY-1953, TLY-1984, TLY-2031, TLY-2039, TLY-2064, TLY- 2081, TLY-2148, TLY-2335, TLY-2337, TLY-2549, TLY-2603, TLY-2604, TLY-2625, TLY- 2633, TLY-2648, TLY-2745, TLY-2786, TLY-2951, or TLY-2954. If any one of these main rotor blades is installed, remove and replace with a serviceable part prior to further flight. NOTE: The serial number may be found on the Bell Helicopter data plate located on top of the blade at the root end and is also marked on the root end of the lower grip plate in the 1.5 inch radius. (c) If the serial number of the main rotor blade matches one listed in paragraph (a) or (b) of this AD, report the registration number and serial number of the affected helicopter and provide a copy of the parts tag with which the part was delivered, if available. This report is to be made to the Manager, Rotorcraft Certification Office, Southwest Region, Federal Aviation Administration, Fort Worth, Texas 76193-0170, telephone (817) 624-5170, within 10 days of the inspection. (Reporting approved by the Office of Management and Budget under OMB No. 2120-0056.) (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 Priority Letter AD (89-22-01 R1) issued on November 21, 1989, revises Priority Letter AD 89-22-01, issued on October 18, 1989, and becomes effective immediately upon receipt. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS H2SW](https://openairdocs.org/tcds/H2SW): Bell Textron Canada Limited; names 7 of 12 models: 206L, 206B, 206L-1, 206A, 206L-3, 206B-1, 206A-1 (OH-58A) ## 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: 1,179 (1,179 by airframe model, 0 by engine model) - Makers: Bell 987, Bell Helicopter Textron 178, Bell Helicopter Textron Canada 14 Models with the most aircraft: - [Bell 206B](https://openairdocs.org/model/bell-206b): 790 aircraft (airframe model) - [Bell 206L-3](https://openairdocs.org/model/bell-206l-3): 159 aircraft (airframe model) - [Bell Helicopter Textron 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1): 149 aircraft (airframe model) - [Bell Helicopter Textron 206B](https://openairdocs.org/model/bell-helicopter-textron-206b): 29 aircraft (airframe model) - [Bell 206A](https://openairdocs.org/model/bell-206a): 23 aircraft (airframe model) - [Bell Helicopter Textron Canada 206B](https://openairdocs.org/model/bell-helicopter-textron-canada-206b): 10 aircraft (airframe model) - [Bell 206A-1](https://openairdocs.org/model/bell-206a-1): 6 aircraft (airframe model) - [Bell 206L](https://openairdocs.org/model/bell-206l): 6 aircraft (airframe model) - [Bell Helicopter Textron Canada 206L-3](https://openairdocs.org/model/bell-helicopter-textron-canada-206l-3): 4 aircraft (airframe model) - [Bell 206B II](https://openairdocs.org/model/bell-206b-ii): 3 aircraft (airframe model) All 10 models: https://openairdocs.org/ad/89-22-01-R1-L/models.md Every aircraft: https://openairdocs.org/ad/89-22-01-R1-L/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.