Altimeter - Thrush Aircraft S2R–T660 Maintenance Manual

TROUBLE
Instrument fails to
operate.
Incorrect indication.
8 - 11
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL

ALTIMETER

PROBABLE CAUSE
Static line plugged.
Defective mechanism.
Hands not carefully set.
Leaking diaphragm
REMEDY
Check line for obstructions.
Check static source. Blow out
lines. Clean static source.
Substitute known-good altimeter
and check reading. Replace
instrument.
Reset hands with know.
Substitute known-good
altimeter and check reading.
Replace instrument.
Effective: 12/17/03