Supplement Airplane Maintenance Manual
Cessna 172 with TAE 125-02-99 / -114
AMM-20-02
Rev. No:
Rev. Date:
Chapter:
Issue:
Issue Date:
Page:
Content:
20-AMM-73-02
3
06.11.2013
7
10
1
25.08.2014
Rail Pressure Sensor
The rail pressure sensor measures the instantaneous pressure in
the rail and generates an output signal for the FADEC.
The fuel flows to the rail pressure sensor through in opening in
the rail. Pressurized fuel reaches the sensor's diaphragm through
a blind hole. The sensor element for converting the pressure to
an electric signal is mounted on this diaphragm. The signal is
needed as feedback signal for the FADEC to control the rail
pressure. See Figure 7.
Figure 7 Rail Pressure Sensor
1
Electric Connections
2
Evaluation Circuit
3
Diaphragm with Sensor Element
4
High Pressure Connection
1
2
3
4
5
Summary of Contents for Cessna 172
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