AD 65-09-03

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AD Number:
65-09-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; GRUMMAN Model G-159 Aircraft
Subject:
APU Turbine Wheel
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/21/1965
Make:
Gulfstream Aerospace Corporation
Model:
G-159
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 65-09-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-57

AD NUMBER:   65-09-03

SUBJECT HEADING:   Airworthiness Directives; GRUMMAN Model G-159 Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective April 21, 1965.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   65-09-03 GRUMMAN: Amdt. 39-57 Part 39 Federal Register April 21, 1965. Applies to Model G-159 Aircraft Equipped with AiResearch Gas Turbine Compressor Units Model GTC 85-37, Series 1 through 18.

Unless already accomplished within the last 235 hours of APU operation or 470 starts of the APU prior to the effective date of this AD, accomplish the following within the next 15 hours of APU operation or 30 starts of the APU, whichever occurs first, and at intervals not to exceed 250 hours of APU operation or 500 starts of the APU since the last inspection:

(a) Visually inspect in accordance with Grumman Gulfstream Customer Bulletin No. 180, dated February 12, 1965, or later FAA-approved revision, and AiResearch Service Bulletin No. 49-1045, Revision 1, dated January 29, 1965, or later FAA-approved revision, the APU turbine wheel and exducer for surface cracks, the shroud plate for indications of rubbing, and the blade tips for indications of erosion and over-heating. Remove from service any turbine wheel and any exducer found cracked, or having rubbed, eroded, or over-heated blades.

(b) Check and adjust as necessary the starter clutch for proper torque value in accordance with Grumman Gulfstream Customer Bulletin No. 179, dated January 8, 1965, or later FAA-approved revision, and AiResearch Service Bulletin No. 49-1042, dated November 13, 1964, or later FAA-approved revision.

(c) Check and adjust as necessary the APU fuel pump acceleration limiter for proper setting in accordance with AiResearch Service Bulletin No. 49-1045, Revision 1, dated January 29, 1965, or later FAA-approved revision.

This directive effective April 21, 1965.

FOOTER: