Piper PA-24-250 Comanche User Manual

A~rcralt Publicnlions
Piper Comanche 250 (Early Model)
Section
- 3
Emergency Procedures
HIGH OIL TEMPERATURE
Power Reduce
Mixture
................... .. ............................................................................................. Enrich
Airspeed
......................................................................... Maintain Above 120 mph (104 kt)
Land as soon as possible and investigate cause. Prepare for a Power Off Landing. (Page 3-5)
HIGH CYLINDER HEAD TEMPERATURE
Excessive cylinder head temperature may parallel high oil temperature and the procedure for
handling it is the same. Refer to High Oil Temperature procedure. (Above)
LOSS OF OIL PRESSURE
Land as soon as possible and investigate cause.
Prepare for a Power Off Landing. (Page
3-5)
LOSS OF FUEL PRESSURE
** NOTE **
The most common cause of fuel pressure loss is fuel exhaustion due to improper he1 management.
In the event of he1 pressure loss:
Fuel Selector
.................
Switch to a Tank Containing Fuel
Electric Fuel Pump
................................ .... ......................
On
Mixture
................... ....... ............................................................................................ Enrich
If pressure is not regained:
Electric Fuel Pump
........................................................................................................... Off
Initiate Power Off Landing procedure. page
3-5)
CARBURETOR ICING
It is possible for ice to form in the carburetor when the relative humidity is above 50 percent and
the air temperature is between 20 and 90 degrees Fahrenheit. The first indication of carburetor
icing is usually a drop in manifold pressure, followed by engine roughness.
Carburetor Heat
.......................................................................................................... Full On
Throttle
...................... .. ......................................................................................... Full Open
Mixture
........................................................................... Adjust for Maximum Smoothness
When ice is cleared:
Carburetor Heat
.......................................................................................................... Full Off
Throttle
.......................................................................................... Normal Cruise Setting
Mixture
......................... .. ..................................................................... Adjust to EGT Gauge
.........................................
..........................
Manifold Pressure Gauge .. Monitor for Recurrence
Copyright: 1993 Page 36

Piper PA-24-250 Comanche Specifications

General

Brand	Piper
Model	PA-24-250 Comanche
Category	Aircrafts
Language	English