AD 77-05-02

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AD Number:
77-05-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 212 Helicopters
Subject:
Main Rotor Blades
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
03/10/1977
Make:
Bell Helicopter Textron, Inc.
Model:
212
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Superseded AD: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Superseded By: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: 77-05-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2846

AD NUMBER:   77-05-02

SUBJECT HEADING:   Airworthiness Directives; Bell Model 212 Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective March 10, 1977.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
77-05-02 BELL: Amendment 39-2846. Applies to Bell Model 212 helicopters certificated in all categories.

Compliance required as indicated.

To prevent possible failure of certain main rotor blades having possible corrosion or fretting in the blade weight bolt holes or other defects in the spar, accomplish the following for main rotor blades, P/N 204-012-001-23 and -29.

For blades with less than 1475 hours' total time in service on the effective date of this AD, remove these blades from further service prior to attaining 1500 hours' total blade time in service.

For blades with 1475 or more hours' total blade time in service on the effective date of this AD, remove these blades from further service within 25 hours' time in service.

This AD does not apply to blades, P/N 204-012-001-33.

(Bell Helicopter Textron message dated February 17, 1977, to all Model 212 operators pertains to this subject.)

This amendment becomes effective March 10, 1977.

FOOTER: