TWIN COlllANCHE C/R
(2) Turn on aircraft master switch and place tip tank fuel selector switch to tip tank
position. Ascertain that tip tank solenoid switch. under fuel console. is operating
by listening for a slight click when switch is operated.
(3) Lift up appropriate fuel dram valve and allow fuel to drain. Observe for Ilow in
clear plastic tube, followed by interrupted flow of no fuel for a few seconds.
further followed by a bubbling flow then full flow. Total drain time should not be
less than 30 seconds.
(4) Procedure shall be accomplished for each tip tank separately.
(5) In addition to above procedure, operate the power plant from each wing tip
separately until steady fuel flow is assured during ground run-up prior to flight.
3. PERFORMANCE
Same as prescribed in appropriate FAA approved Airplane Flight Manual.
4.
EMERGENCY
In the event of malfunction of the tip tank fuel system, place the TIP/AUX Fuel Selector
Switch in the “AUX” position.
NOTE
Fuel Solenoid Valve failure automatically switches fuel
flow
from
“TIP” to “AUX” tank.
REPORT: 1605 PART I PAGE 26
MODEL: PA-39
FAA APPROVED November 28,1969
REISSUED: June 1,197O
REVISED: March 17,197l
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