Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual page 1400

In serial numbers 4697001 thru 4697173,
EPA-compliant collection tank. The EPA tank in turn is drained through an external quick-drain under the
engine compartment. See 71-70-00, Figure 2.
In serial numbers 4697174 and up,
combustion chamber and consumed. See Fuel Purge System, 71-70-00.
The engine incorporates an oil lubrication system with a 12 quart total capacity including propeller,
integral engine oil system, and oil cooler. The oil tank is an integral part of the compressor inlet case in
front of the accessory gearbox and contains a filler neck with calibrated dipstick. The filler neck
incorporates a ball check valve to ensure oil does not migrate out of the filler neck in the event the
dipstick is not properly secured. In addition, an oil level sight glass is provided to indicate the oil level in
the gearbox without having to remove the dipstick. Adequate oil level for engine operation is indicated by
an oil level within the green area of the sight glass.
Engine instruments, located on the center panel, are displayed on the two EDU's (engine display unit).
The standard display on the primary, pilot side, EDU displays torque, ITT (interstage turbine
temperature), propeller (Np) RPM, gas generator (Ng) RPM, and fuel flow (during engine start). The
standard display on the secondary, copilot side EDU displays vacuum level, fuel flow, oil temperature, oil
pressure, outside air temperature, estimated time enroute, fuel at destination, and fuel quantity.
Fire detection is provided by a heat sensitive fire cable, which passes a current at approximately 540° F.
This current alerts the fire detection computer, which then actuates the ENGINE FIRE warning light on
the annunciator display system. When switched to test mode, an electrical current is passed to the fire
detection computer, which should sense the current and illuminate the ENGINE FIRE warning light in the
annunciator panel.
The engine is completely enclosed by cowlings consisting of two upper and one lower section. The rear
upper cowling contains an oil filler door, a cooling inlet for the starter generator and alternator, and left
and right gull-wing access doors. The lower cowling incorporates the engine air inlets, the oil cooler air
inlet, and the forward portion of the inertial separators.
2. Troubleshooting
Troubles concerning the power plant are listed in Chart 1 along with their probable causes and
suggested remedies. Before attempting to locate the difficulty, consult all available sources for any
pertinent information which might assist in diagnosing the trouble. Perform the Minimum Checks
Required Before Troubleshooting as listed in the Pratt & Whitney Canada Maintenance Manual No. P/N
3021442, Chapter 71.
71-00-00
PAGE 2
Apr 15/07
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
residual fuel remaining in the lines at shutdown drains into an
residual fuel remaining in the lines at shutdown is blown into the
7D16