飞行翻译_公务机_公务航空_Business Jet_Business Aviation

 FIRE PROTECTION Description  Vol. 2  09.10.12 
Oct 05/06 

MAIN LANDING GEAR BAY OVERHEAT DETECTION SYSTEM (CONT'D)
MLG BAY Overheat Test
The MLG BAY overheat detection system can be tested from the LDG GEAR control panel, located on the center forward pedestal. The OVHT test switch is used to verify the continuity of the heat-sensing element, by simulating an overheat/fire condition. The FAIL test switch is used to verify the ability of the detection control unit to discriminate between an actual overheat/fire condition and false overheat/fire (shorted) loop.

LDG GEAR Control Panel
Figure 09.10.10

CONTROLS AND INDICATORS
General
The controls for the various fire protection systems are located on the glareshield; the systems advisory, caution and warning messages are displayed on EICAS, and the test switches are located on the Miscellaneous Test panel and LDG GEAR control panel.

 FIRE PROTECTION Description  Vol. 2  09.10.13 
Oct 05/06 

CONTROLS AND INDICATORS (CONT'D) Engine and APU Fire/Overheat Protection

Glareshield Panels
Figure 09.10.11

 FIRE PROTECTION Description  Vol. 2  09.10.14 
Oct 05/06 

CONTROLS AND INDICATORS (CONT'D) Fire Detection and FIREX Monitor Test

Miscellaneous Test Panel Figure 09.10.12
MLG Bay Overheat Test

LDG GEAR Control Panel
Figure 09.10.13

 FIRE PROTECTION Description  Vol. 2  09.10.15 
Oct 05/06 

CONTROLS AND INDICATORS (CONT'D) Baggage Smoke Detector Test

Miscellaneous Test Panel
Figure 09.10.14

EICAS MESSAGES
The fire and overheat protection system messages are shown on the EICAS page. The fire and overheat protection system messages and aural warning are listed below. A brief explanation of each message is provided.

 FIRE PROTECTION Description  Vol. 2  09.10.16 
Oct 05/06 

EICAS MESSAGES (CONT'D)

AURAL WARNING
MEANING (IF ANY)
Respective fuel shutoff valve is not closed after actuation of the ENG FIRE PUSH switch/light.
Respective fire detection loop is failed (shorted out).
Hydraulic shutoff valve is not closed after actuation of the respective ENG FIRE PUSH switch/light.
The respective jetpipe/pylon overheat detection loop is failed (shorted out).
APU fuel shutoff and negative-G shutoff valves have closed after actuation of the APU FIRE PUSH switch/light.
Respective squib has passed its self-test.
Respective engine fuel shutoff valve has closed after actuation of respective ENG FIRE PUSH switch/light.
Respective squib has passed its self-test.
Respective hydraulic shutoff valve has closed after actuation of the respective ENG FIRE PUSH switch/light.