MOONEY
M20TN - MODEL TYPE-S
SECTION III
EMERGENCY PROCEDURES
3 -- 13
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 04-02-2008
LOSS OF OIL PRESSURE
Oil temperature
170
o
to 240
o
F (77
o
to 104
o
C)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If Oil Temperature Normal
LAND AS SOON AS POSSIBLE
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
If Oil Temperature Above Normal
Throttle
REDUCE to Minimum Power Required
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LAND AS SOON AS POSSIBLE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BE PREPARED FOR LOSS OF ENGINE POWER AND PREPARE FOR AN EMERGENCY
LANDING
ENGINE DRIVEN FUEL PUMP FAILURE
--WARNING--
IF HIGH BOOST PUMP MUST BE LEFT ON TO ACHIEVE NORMAL FUEL FLOW,
LAND AS SOON AS PRACTICABLE
--WARNING--
When operating engine at moderate power with “HIGH BOOST” ON and engine
driven fuel pump has failed, engine may quit or run rough when manifold
pressure is reduced, unless manually leaned.
An engine driven fuel pump failure is probable when engine will only operate with HIGH BOOST
pump ON. Operation of engine with a failed engine driven fuel pump and auxiliary fuel pump
HIGH BOOST ON will require smooth operation of engine controls and corresponding mixture
change when throttle is repositioned or engine speed is changed. When retarding throttle or
reducing engine speed, adjust mixture to prevent engine power loss from an overrich condition.
Enrich mixture when opening throttle or increasing engine speed to prevent engine power loss
from a lean condition. Always lean to obtain a smooth running engine.
The following procedure should be followed when a failed engine driven fuel pump is suspected:
HIGH BOOST Pump (Guarded Switch)
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle
CRUISE Position or as required for engine operation
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Mixture
ADJUST for smooth engine operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LAND AS SOON AS PRACTICABLE & CORRECT MALFUNCTION.
FUEL VAPOR SUPPRESSION (Fluctuating Fuel Flow)
LOW Boost Pump. . . . . .
ON to clear vapors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine operation . . . . . . .
. . MONITOR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOW Boost Pump OFF -- (If condition still exists, REPEAT PROCEDURE, LEAVE PUMP ON)
