Table 5-1 Pressure Sensor Equipment List; Pressure Sensors - Garmin GI 275 Maintenance Manual

5.11.3

Pressure Sensors

Manifold pressure, oil pressure, and fuel pressure sensor installations are similar. Garmin pressure sensors
with a brass housing are limited to aircraft with operational ceilings up to 32,000 feet. Garmin pressure
sensors with a stainless steel housing may be used on all aircraft on the AML.
When replacing existing sensors:
• Do not remove engine and fuel fittings with an intentionally reduced orifice. It may limit fluid loss
and fire damage in the event of a hose failure
• Inspect the condition of all existing tubes, hoses, and fittings that are being reused; replace if
necessary
When installing pressure sensors:
• Fuel and oil hoses in the engine compartment must meet TSO-C53a Type C or D (fire resistant)
• Do not install sensors directly below fittings or components that may leak flammable fluid
• Thread sealant or tape must be used for the NPT threads. To reduce the risk of system
contamination, a minimal amount of sealant should be applied leaving at least two threads at the
end of the fitting clear of sealant/tape
• Sensors must be routed as far away from the aircraft exhaust system as practical and no closer than
6 inches
Function
Kavlico P4055-5020-4, Press (Brass)
Oil Press
Kulite APT-20GX-1000-150G,
Press (Stainless)
Kavlico P4055-5020-1, Press (Brass)
Manifold Press
Kulite APT-20GX-1000-25PSIA,
Press (Stainless)
Kavlico P4055-5020-3, Press (Brass)
Fuel Press Kavlico P4055-5020-2, Press (Brass)
APT-20GX-1000-50PSIG, Press (Stainless)
APT-20GX-1000-15PSIG, Press (Stainless)
190-02246-11
Rev. 1

Table 5-1 Pressure Sensor Equipment List

Manufacturer P/N, Description Garmin P/N
011-04202-30
(494-30027-30)
494-30032-00
011-04202-00
(494-30027-00)
494-30030-00
011-04202-20
(494-30027-20)
011-04202-10
(494-30027-10)
494-30031-00
494-30029-00
GI 275 Part 23 AML STC Maintenance Manual
Authorization
GI 275 STC
GI 275 STC
GI 275 STC
Page 5-29