AD 61-05-05

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AD Number:
61-05-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; North American Model T-28A Aircraft
Subject:
R-1300-1A Engines
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
03/04/1961
Make:
Thompson Aircraft Sales
Model:
T-28A
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Superseded AD: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Superseded By: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:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 61-05-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   61-05-05

SUBJECT HEADING:   Airworthiness Directives; North American Model T-28A Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective March 4, 1961.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
61-05-05 NORTH AMERICAN: Amdt. 260 Part 507 Federal Register March 4, 1961. Applies to All T-28A Aircraft Certified In The Restricted Category.

Compliance required as indicated.

(a) The R-1300-1A engines which have been overhauled must have Change 53 of T.O. 2R-R1300-5 incorporated upon the accumulation of 860 hours since last overhaul. R-1300-1A engines which have never been overhauled must have Change 53 of T.O. 2R-R1300-5 incorporated upon the accumulation of 860 hours total time in service since new. The modified engines will be designated as R-1300-1B engines by stamping the letter "B" on the engine nameplate.

(b) The engine-driven fuel pump, AN-4100, and fuel booster pump must be overhauled every 1,200 hours' time in service.

(c) The engine-driven hydraulic pump, AS-6201-1, must be overhauled every 860 hours' time in service.

(d) (1) The A-422-E1 or -E2 propeller, regardless of serial number, must be disassembled, inspected, and reworked in accordance with T.O. 3H3-3-512 at 300 hours' time in service.

(2) The A-422-E1 or -E2 propeller must be removed from service after 2,100 hours' time in service.

(e) Conduct an inspection of all cylinders in accordance with paragraph 2 of T.O. 1T-28A-531 at the following intervals:

(1) Every 30 hours' time in service.

(2) During any intermediate engine inspection at which oil leaks, carbon smudges, etc., are detected.

(Cylinder assembly P/N 430622 Change T and later changes have shotpeened barrels and do not require the above cylinder barrel inspection. The cylinder assembly number is stamped on the flat of the cylinder identification pad.)

This supersedes AD 58-24-03.

This directive effective March 4, 1961.

FOOTER: