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

Page: 936 / 1956

PAGE 8
Feb 28/07
5C18
34-10-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
2. Pitot Head (See Figure 2.)
In S/N’s 4636001 thru 4636374, the pitot head is located on the underside of the left wing.
In S/N’s 4636375 and up, a pitot head is located on the underside of each wing.
A. Removal
(1) Remove the four screws which secure the pitot tube to the mast assembly.
(2) Carefully pull the pitot tube from the mast assembly.
(3) Remove the hose from the elbow on top of the pitot tube.
(4) Disconnect the electrical leads at the connector.
B. Installation
(1) Reconnect the electrical leads to the heating elements.
(2) Install the pitot tube into the mast assembly.
(3) Secure the pitot tube to the mast assembly with the four screws.
(4) Reconnect the electrical leads to the gauge.
C. Heaters Test
(1) Remove the pitot head from mast assembly and the wing.
(2) With one of the test leads connected to one of the terminals of the head, ground the other lead
to the metal body of the head assembly. There should be no continuity.
(3) Reinstall the pitot head into the mast assembly and the wing.
3. Vertical Speed Indicator
NOTE: With the Avidyne Entegra EFIS installed, this function is performed by the PFD’s.
The Vertical Speed indicator measures the rate of change in static pressure when the airplane is
climbing or descending. By means of a pointer and dial this instrument will indicate a rate of ascent or
descent of the airplane in feet per minute. But due to the lag of the instrument, the aircraft will be
climbing or descending before the instrument starts to read and the instrument will continue to read after
the aircraft has assumed level flight. This lag should not be considered a malfunction when operating in
turbulent (rough) air.
NOTE: If any connections in the static system are opened for maintenance, the entire system must be
rechecked per FAR 23.1325. With optional Meggitt EFIS installation, see Appendix 1 (grid 5K19).
A. Troubleshooting
See Chart 2.
B. Removal and Installation
See 39-10-00, Face Mounted Instruments - Removal and Installation.