Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual page 1403

Trouble
Excessive oil consumption.
Engine drops below idle
(min. flow) in flight.
7D19
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
CHART 1 (Sheet 3 of 3)
TROUBLESHOOTING ENGINE
Cause
Leakage or restriction in
pressure or scavenge
oil tubes.
Oil level too high.
Defective Labyrinth seals.
Defective oil to fuel heater
(internal leakage).
P-Y line leaking.
Leak or restriction in P-3 line.
Ice accumulation in P-3 line.
Remedy
Visually inspect all tubes
and connections.
Repair as required.
Maintain correct oil level.
Check inlet and exhaust
areas for collections of oil.
If evident, replace engine.
Pressure check heater.
(Refer to P&WC Engine
Maintenance Manual.)
Check P-Y line connections
for leakage.
Check P-3 line for
restriction. Replace if
required.
Check wiring and
connections of electrically
heated P-3 line. Repair or
replace as required.
71-00-00
Apr 15/07
PAGE 5