AD 81-15-07

final rule

Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters

AD Number
81-15-07
Status
final_rule
Effective Date
Product Category
aircraft
Docket
81-ASW-11
FR Citation
This information is not available.
Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

Applicability

TypeManufacturerModelDetails
aircraft Kawasaki Heavy Industries, Limited KV107-II Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters
aircraft Kawasaki Heavy Industries, Limited KV107-IIA Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters

Unsafe Condition

Fatigue failure of the main rotor tension-torsion strap assemblies, P/N 107R2003-1.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Remove from service tension-torsion strap assemblies, P/N 107R2003-1, on or before the accumulation of 27,800 hours' time in service and replace with a serviceable part that has less than 27,800 hours' total time in service.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

on or before the accumulation of 27,800 hours' time in service

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Kawasaki Heavy Industries, Limited Models KV107-II and KV107-IIA helicopters equipped with main rotor tension-torsion strap assemblies, P/N 107R2003-1.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Tension-torsion Strap Assembly

Applicability Source Text

Show captured applicability text from the source AD
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Details
AD Number:
81-15-07
Document Type:
AD Final Rules
Docket Number:
81-ASW-11
Subject Heading:
Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters
Subject:
Tension-torsion Strap Assembly
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/25/1981
Make:
Kawasaki Heavy Industries, Limited
Model:
KV107-II | KV107-IIA
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Superseded AD: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Superseded By: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: 81-15-07
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   81-ASW-11

AMENDMENT:   39-4164

AD NUMBER:   81-15-07

SUBJECT HEADING:   Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective August 25, 1981.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
81-15-07 KAWASAKI HEAVY INDUSTRIES, LTD. (KHI): Amendment 39-4164. Applies to Models KV107-II and KV107-IIA helicopters equipped with main rotor tension-torsion strap assemblies, P/N 107R2003-1, certificated in all categories (Airworthiness Docket No. 81-ASW-11).

Compliance required as indicated.

To prevent fatigue failure of the main rotor tension-torsion strap assemblies, remove from service tension-torsion strap assemblies, P/N 107R2003-1, on or before the accumulation of 27,800 hours' time in service and replace with a serviceable part that has less than 27,800 hours' total time in service.

This amendment becomes effective August 25, 1981.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_81-15-07.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
81-15-07
Document Type:
AD Final Rules
Docket Number:
81-ASW-11
Subject Heading:
Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters
Subject:
Tension-torsion Strap Assembly
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/25/1981
Make:
Kawasaki Heavy Industries, Limited
Model:
KV107-II | KV107-IIA
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: 81-15-07
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   81-ASW-11

AMENDMENT:   39-4164

AD NUMBER:   81-15-07

SUBJECT HEADING:   Airworthiness Directives; KAWASAKI HEAVY INDUSTRIES, LTD. (KHI) Models KV107-II and KV107-IIA Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective August 25, 1981.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
81-15-07 KAWASAKI HEAVY INDUSTRIES, LTD. (KHI): Amendment 39-4164. Applies to Models KV107-II and KV107-IIA helicopters equipped with main rotor tension-torsion strap assemblies, P/N 107R2003-1, certificated in all categories (Airworthiness Docket No. 81-ASW-11).

Compliance required as indicated.

To prevent fatigue failure of the main rotor tension-torsion strap assemblies, remove from service tension-torsion strap assemblies, P/N 107R2003-1, on or before the accumulation of 27,800 hours' time in service and replace with a serviceable part that has less than 27,800 hours' total time in service.

This amendment becomes effective August 25, 1981.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.