AD 67-20-01

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AD Number:
67-20-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
ALLISON - AERO PRODUCTS Models A6441FN-606 and A6441FN-606A Propellers
Subject:
Retention Bolts
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/23/1967
Make:
Pacific Propeller, Inc.
Model:
A6441FN-606
Product Type:
Propeller
Product Subtype:
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-20-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-466

AD NUMBER:   67-20-01

SUBJECT HEADING:   ALLISON - AERO PRODUCTS Models A6441FN-606 and A6441FN-606A Propellers

ACTION:  

SUMMARY:  

DATES:   Effective August 23, 1967.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   67-20-01 ALLISON - AERO PRODUCTS: Amdt. No. 39-439 as revised Amdt. 39-466, Part 39, Federal Register June 29, 1967. Applies to Models A6441FN-606 and A6441FN-606A Propellers.

Compliance required as indicated, unless already accomplished.

To prevent serious overspeeds and to make the propeller pitch lock more effective under remote combinations of critical component failures, accomplish the following:

(a) On or before November 1, 1967, install Part No. 6859637 restrictor in the increase pitch port of each hub island, as outlined in Allison Commercial Service Letter CSL 189, Pages 14 and 15, Paragraph C2b(1)(2)(3) and (4), entitled "Hub Assembly - Preparation for Assembly."

(b) On or before November 1, 1967, remove the eight master gear retention bolts and install eight P/N 6859881 bolts as replacements, as outlined in Allison's Commercial Propeller Bulletin, CPB No. 63-317.

This amendment effective August 23, 1967.

Revised August 23, 1967.

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