Troubleshooting Chart (Calco Flap System) - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFAIN SERVICE MANUAL
TABLE V-III. TROUBLESHOOTING CHART (CALCO FLAP SYSTEM)
Trouble
Cause
Remedy
Annunciator light ON,
flaps operate.
Annunciator light ON,
flaps inoperative.
Amplifier component
failure.
Flap motor circuit
breaker off.
Replace the amplifier.
Reset flap motor
circuit breaker.
Flaps symmetrical.
Potentiometer failure.
Motor and/or relay
failure.
Check and rerig flaps.
Replace potentiometer.
Replace component.
Flaps inoperative and
annunciator light off;
flap indicator pointing
OFF.
Flaps inoperative and
annunciator light off;
flap indicator showing
flap position.
Power lost to amplifier.
Annunciator failure.
Flap asymmetric con-
dition.
Reset flap control circuit
breaker.
Test annunciator.
Check and rerig flaps.
Flap motor circuit
breaker off.
Reset flap motor circuit
breaker.
SURFACE CONTROLS
Reissued: 9/23/80
1L3