AD 88-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B-1 | Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206L | Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206L-1 | Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206L-3 | Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters |
Unsafe Condition
Failure of the tail rotor yoke assembly, loss of the tail rotor blade, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the aircraft to determine the part number and serial number of the installed tail rotor yoke assembly. If P/N 206-011-819-101 with listed serial numbers is installed, remove and replace it with an airworthy yoke assembly. Flight is permitted to a base where replacement can be done under FAR 21.197 and 21.199.
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Compliance Time
Before further flight
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Affected Aircraft
BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 helicopters with tail rotor yoke assembly P/N 206-011-819-101 and specific serial numbers listed in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Tail Rotor Yoke Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_88-23-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-23-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-...Show more Subject: Tail Rotor Yoke Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/25/1989 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206B | 206B-1 | 206L | 206L-1 | 206L-3 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-23-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6249 AD NUMBER: 88-23-03 SUBJECT HEADING: Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters ACTION: SUMMARY: DATES: Effective July 25, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-23-03 BELL HELICOPTER TEXTRON, INC. (BHTI): Amendment 39-6249. Final copy of priority letter AD. Applicability: All BHTI Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 helicopters certificated in any category, with tail rotor yoke assembly, P/N 206-011-819-101, identified with the following serial numbers: A - 2009 A - 2010 A - 2023 A - 2070 A - 2073 A - 2077 A - 2078 A - 2079 A - 2084 A - 2087 A - 2133 A - 2144 A - 2150 A - 2167 A - 2173 A - 2189 A - 2195 A - 2198 A - 2203 A - 2213 A - 2219 A - 2221 A - 2223 A - 2227 A - 2229 A - 2234 A - 226 A - 2243 A - 2262 Compliance: Required as indicated, unless already accomplished. To prevent the failure of the tail rotor yoke assembly, loss of the tail rotor blade, and subsequent loss of control of the helicopter, accomplish the following: (a) Before further flight, inspect the aircraft to determine the part number and serial number of the installed tail rotor yoke assembly. If P/N 206-011-819-101 with a serial number listed above is installed on the helicopter, remove and replace the assembly with an airworthy yoke assembly. (b) An alternate method of compliance or adjustment of the compliance time, which provides an equivalent level of safety, may be used when approved by the Manager, Rotorcraft Certification Office, Rotorcraft Directorate, Aircraft Certification Service, FAA, Southwest Region. (c) In accordance with FAR 21.197 and 21.199, flight is permitted to a base where removal and replacement of the affected tail rotor yoke required by this AD may be accomplished. This amendment (39-6249, AD 88-23-03) becomes effective on July 25, 1989, as to all persons except those persons to whom it was made immediately effective by Priority Letter AD 88-23-03, issued November 15, 1988, which contained this amendment. FOOTER:
Document Text
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AD Final Rules - DRS_88-23-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-23-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-...Show more Subject: Tail Rotor Yoke Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/25/1989 Make: Bell Helicopter Textron Canada Limited Model: 206A | 206B | 206B-1 | 206L | 206L-1 | 206L-3 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-23-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6249 AD NUMBER: 88-23-03 SUBJECT HEADING: Airworthiness Directive; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 Helicopters ACTION: SUMMARY: DATES: Effective July 25, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-23-03 BELL HELICOPTER TEXTRON, INC. (BHTI): Amendment 39-6249. Final copy of priority letter AD. Applicability: All BHTI Model 206A, 206B, 206B-1, 206L, 206L-1, and 206L-3 helicopters certificated in any category, with tail rotor yoke assembly, P/N 206-011-819-101, identified with the following serial numbers: A - 2009 A - 2010 A - 2023 A - 2070 A - 2073 A - 2077 A - 2078 A - 2079 A - 2084 A - 2087 A - 2133 A - 2144 A - 2150 A - 2167 A - 2173 A - 2189 A - 2195 A - 2198 A - 2203 A - 2213 A - 2219 A - 2221 A - 2223 A - 2227 A - 2229 A - 2234 A - 226 A - 2243 A - 2262 Compliance: Required as indicated, unless already accomplished. To prevent the failure of the tail rotor yoke assembly, loss of the tail rotor blade, and subsequent loss of control of the helicopter, accomplish the following: (a) Before further flight, inspect the aircraft to determine the part number and serial number of the installed tail rotor yoke assembly. If P/N 206-011-819-101 with a serial number listed above is installed on the helicopter, remove and replace the assembly with an airworthy yoke assembly. (b) An alternate method of compliance or adjustment of the compliance time, which provides an equivalent level of safety, may be used when approved by the Manager, Rotorcraft Certification Office, Rotorcraft Directorate, Aircraft Certification Service, FAA, Southwest Region. (c) In accordance with FAR 21.197 and 21.199, flight is permitted to a base where removal and replacement of the affected tail rotor yoke required by this AD may be accomplished. This amendment (39-6249, AD 88-23-03) becomes effective on July 25, 1989, as to all persons except those persons to whom it was made immediately effective by Priority Letter AD 88-23-03, issued November 15, 1988, which contained this amendment. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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