AD 53-09-01

AD Final Rules - DRS_53-09-01.html
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AD Number:
53-09-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
PRATT & WHITNEY Model R-2000 Series Engines
Subject:
Link Pins
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Pratt & Whitney Division
Model:
Military R-2000 Series
Product Type:
Engine
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Superseded AD: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Superseded By: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: 53-09-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   53-09-01

SUBJECT HEADING:   PRATT & WHITNEY Model R-2000 Series Engines

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
53-09-01 PRATT & WHITNEY: Applies to R-2000 Series Engines Overhauled by San Antonio Air Depot Between July 1, 1952, and April 9, 1953.

Compliance required prior to further carriage of passengers or cargo in aircraft with such engines installed. Aircraft may be ferried to base where inspection is to be conducted.

Several operators of C-54 aircraft utilizing military overhauled engines, have experienced failures of link (knuckle) pins in the subject engines due to improper overhaul, inspection, or assembly procedures. The failures have occurred in comparatively low-time engines, and cracked pins have been found in engines with zero TSO.

To preclude the possibility of further failures of this nature, engines falling within the category as noted must be dissassembled and the link pins magnetically inspected, eliminating any found with cracks, then reassembled in accordance with manufacturer's instructions, prior to further flight. Date of overhaul and identification of overhaul base stamped on exterior surface of engine nose housings.

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