AD/G1159/32 - Flap, Auxiliary and Thrust Reverser Hydraulic Shut-Off Valves - Inspection and Replacement
1AD/G1159/32 - Flap, Auxiliary and Thrust Reverser Hydraulic Shut-Off Valves - Inspection and Replacement
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes
AD/G1159/32 Flap, Auxiliary and Thrust Reverser Hydraulic Shut-Off Valves - Inspection and Replacement
8/84
Applicability: All models and all shut-off valve assemblies Pt. No. 1159SCH211-7 held as spares. Requirement: Gulfstream Aerospace Customer Bulletin No. 349.
Compliance: Before further flight after 17 July 1984 perform step 1 of action required in the Requirement Document complying with steps 1A or 1B as applicable.
Where step 1C of the Requirement Document is applicable, inspection intervals shall not exceed 7 days.
Background: The manufacturer advises that all combined and auxiliary hydraulic system functions could be lost should the brazing of the solenoids fitted to the shut-off valves fail due to fatigue.