AD 59-21-03

AD Final Rules - DRS_59-21-03.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
59-21-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
ALLISON Models 501-D13 and -D13A Engines
Subject:
Compressor Blade
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Rolls-Royce Corporation
Model:
501-D13 | 501-D13A
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Superseded AD: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Superseded By: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: 59-21-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   59-21-03

SUBJECT HEADING:   ALLISON Models 501-D13 and -D13A Engines

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
59-21-03 ALLISON: Applies to Models 501-D13 and -D13A Engines.

Compliance required not later than November 15, 1959.

Ten cases of compressor blade retention failures have occurred in service including one case that resulted in serious bulging and separation on the split line of the compressor case and flash fire inside the cowling during ground running. To preclude the possibility of serious engine damage resulting from failure of first stage compressor blade retention one of the following modifications must be incorporated not later than November 15, 1959.

Install first stage compressor wheel assembly P/N 67 92821 or first stage compressor wheel assembly P/N 67 93351 or compressor rotor assembly P/N 67 92332. Allison Commercial Engine Bulletins Numbers 61 or 80 cover the first two modifications while the last is a new design.


FOOTER: