Piper Malibu PA-46-310P Pilot Operating Handbook page 84

SECTION 3
EMERG PROCEDURES
PIPER AIRCRAFT CORPORATION
PA-46-310P, MALIBU
CAUTION
If normal engine operation and fuel flow is not
immediately re~stablished, the auxiliary fuel
pump should
be
turned OFF. The lack of fuel
flow indication could indicate a leak in the fuel
system.
V
If the preceding steps do not restore power, prepare for a power off
landing.
If previous procedure has not restored power and time permits, place
auxiliary fuel pump to LOW. Secure one mag at a time, then back to both
ON. Move the throttle and mixture control levers to different settings. This
may restore power if the problem is too rich or too lean a mixture or if there
is a partial fuel system restriction. Water in the fuel could take some time to
be used up, and allowing the engine to windmill may restore power. If power
loss is due to water. fuel flow indications will be normal.
If engine failure was caused by fuel exhaustion, power will not
be
restored after switching fuel tanks until the empty fuel lines are filled. This
may require up to ten seconds.
If power is not regained, proceed with the Power Off Landing procedure
V
(refer to paragraph 3.13).
CAUTION
The auxiliary fuel pump has no standby func-
tion. Actuation of the HIGH switch position
after the engine is operating normally will cause
engine roughness and/ or power loss. If the
auxiliary fuel pump switch or primer switch
fails causing the auxiliary fuel pump to be
activated in the HIGH mode while the engine
driven fuel pump is operating normally, engine
roughness and or/ power loss will occur.
Should this condition exist pull out the fuel
pump pull-type circuit breaker for the selected
fuel tank.
REPORT: VB-1200
3-16
ISSUED: JANUARY 11, 1984
REVISED: APRIL 1, 1987