Thrush Aircraft S2R–T660 Maintenance Manual page 214

TROUBLE
Hand fails to respond
Incorrect indication or hand
oscillates.
Hand Vibrates.
Effective: 12/17/03
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
PROBABLE CAUSE
Pitot pressure connection not
properly connected to pressure
line from pitot tube.
Pitot or static lines clogged.
Leak in pitot or static line.
Defective mechanism.
Leaking diaphragm.
Excessive vibration.
Excessive tubing vibration.
REMEDY
Test line and connection
for leaks. Repair or
replace damaged line,
tighten connections.
Check line for
obstructions. Blow out
lines.
Test lines and
connections for leaks.
Repair or replace
damaged lines, tighten
connections.
Substitute known-good
instrument and check
reading. Replace
instrument.
Substitute known-good
instrument and check
reading. Replace
instrument.
Check instrument
mounting screws.
Tighten mounting
screws.
Check clamps and lines
connections for security.
Tighten clamps and
connections.
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