Piper PA-32RT-300T - Troubleshooting

LANCE
II SERVICE
MANUAL
10-38. TROUBLESHOOTING.
TABLE X-VI. AIRSPEED TUBES AND INDICATOR
Trouble
Pointers of static
instruments do not
indicate
properly.
Pointer of
instrument
oscillates.
Instrument reads high.
Instrument reads low.
Airspeed changes as
aircraft is banked.
Cause
Leak in instrument case
or in pitot lines.
Defective mechanism.
Pointer
not on
zero.
Leaking
static
system.
Pointer
not on
zero.
Leaking
static system.
Pitot head not aligned
correctly.
Water in pitot line.
Remedy
Check
for leak
and seal.
Replace
instrument.
Replace
instrument.
Find leak and correct.
Replace
instrument.
Find leak and correct.
Realign
pitot
head.
Remove lines from static
instruments and blow
out lines
from cockpit
to
pitot head.
NOTE
When any
connections in static
system are opened for
checking,
system
must be checked
per
F.A.R. 23.1325.
10-39. REMOVAL
AND REPLACEMENT. Refer to
Paragraph 10-76 of this section.
Isued: 1/3/78
INSTRUMENTS
2E20