Engine Fuel System - Thrush Aircraft S2R–T660 Maintenance Manual

1. Check the fuel for presence of water.
2. Check the fuel pump for security and fuel leakage.
Inspect, clean and reinstall high pressure fuel pump 74-micron
3.
inlet fuel filter.
On new aircraft, check the filter after each flight until there is
no evidence of contamination.
flight or ground run when any upstream component is
replaced.
At the fuel pump outlet, check the 10-micron filter for foreign
4.
matter and/or distortion. Install new filter every 100 hours or
as service conditions indicate.
5. Check the drain valve for security and leakage.
When a problem is found, refer to the appropriate section in
the Pratt and Whitney Maintenance Manual.
Check the fuel control unit for security, linkages, and
6.
pneumatic tubes.
Check the fuel control unit bearing for wash-out which is
7.
indicated by blue dye - grease and fuel mixed – at the FCU
vent.
Check the fuel manifold and nozzle assemblies with a
functional test. For improved hot section durability. It is
recommended that the fuel nozzle assemblies are inspected
8.
and functional tested in accordance with time limits set forth in
the engines appropriate maintenance manual.
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THRUSH AICRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL

ENGINE FUEL SYSTEM

* NOTE *
Check the filter after the first
*NOTE*
X X
X
X
X
X X
X
X
X
X
Effective: 01/10/05
R1
R1