Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 291 / 1956

PAGE 3
Feb 28/07
2C13
21-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(3) Connect the duct to the outboard side of the blower.
(4) Reinstall access panels, carpeting, and rear seats.
3. Bleed Air Check Valve (See Figure 1.)
A. Removal
(1) On left hand side, remove the six bolts attaching cabin air supply tube and auxiliary electric
heater to forward pressure bulkhead.
(2) Break seal and remove check valve.
(3) On right hand side, loosen band clamps on flexible hoses connecting bleed air tubes.
(4) Remove the six bolts connecting cabin air supply tube and bleed air supply tube to forward
pressure bulkhead.
(5) Break seal and remove check valve.
B. Installation
(1) Apply GE RTV 1508 sealant to mating surface of check valves.
(2) On left hand side, position valve and gaskets (with flapper on aft side) between auxiliary heater
and forward pressure bulkhead.
(3) Secure valve, auxiliary heater, and cabin air supply tube to forward pressure bulkhead with six
bolts.
(4) On right hand side, position valve and gaskets (with flapper on aft side) between bleed air
supply tube and forward pressure bulkhead.
(5) Secure valve, bleed air supply tube, and cabin air supply tube to pressure bulkhead with six
bolts.
4. Avionics Cooling Blower (See Figure 2.)
The avionics cooling blower is installed on the right side of the fuselage, behind the instrument panel, at
FS 108.00. The cooling air is directed through ducts to installed avionics equipment.
NOTE: Actual equipment served will vary depending on optional equipment installed.
A. Removal
(1) Remove ducts from top of blower. (Ducts are held in place by Ty-Raps.)
(2) Disconnect blower motor wires at connector.
(3) Remove screws, washers and nuts that attach the blower assembly to its mounting bracket.
B. Installation
(1) Attach the blower assembly to the mounting bracket with the screws, washers and nuts.
(2) Reconnect the blower motor wires.
(3) Attach the ducts to the tops of the blower assembly. Ensure that the duct ends overlap the
ports on top of the blower one-half inch minimum. Secure with Ty-Raps.
5. Muffin Fan
In S/N’s 4636314 and up, in airplanes equipped with the Single Side EFIS option, a muffin fan is
installed in the control pedestal as shown in Figure 2, Sheet 2.