**ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
(Ref. Fig. 019)
R **ON A/C 151-199, 401-499,
(Ref. Fig. 019A)
**ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
(Ref. Fig. 020)
R **ON A/C 151-199, 401-499,
(Ref. Fig. 020A)
**ON A/C ALL
(4) Without amber FAULT legend, MASTER CAUT light and single chime :
-
when the HP bleed valve is abnormally closed (lack of bleed pressure at idle) (Ref. Fig. 021)
-
when the two leak detection loops in the wing fail (Ref. Fig. 022)
-
when the two BMCs fail (no signal from the BMCs) (Ref. Fig. 023)
-
when the APU bleed valve is in an incorrect position (Ref. Fig. 024)
Crossbleed Fault - Indicating
Figure 017A
R 1EFF : 151-199, 401-499, 1 36-20-00Page 33 1 1 Aug 01/05 1 1 1CES 1
Bleed 1(2) off - Indicating Figure 018
R 1EFF : 1 1 1CES ALL 1 111 36-20-00 Page 34 May 01/04
Eng 1 or 2 bleed lo temp - Indicating
Figure 019
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 36-20-00Page 35 1301-399, 1May 01/05 1 1 1CES 1
Eng 1 or 2 bleed lo temp - Indicating
Figure 019A
R 1EFF : 151-199, 401-499, 1 36-20-00Page 36 1 1 Aug 01/05 1 1 1CES 1
Eng 1+2 bleed lo temp - Indicating
Figure 020
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 36-20-00Page 37 1301-399, 1May 01/05 1 1 1CES 1
Eng 1+2 bleed lo temp - Indicating
Figure 020A
R 1EFF : 151-199, 401-499, 1 36-20-00Page 38 1 1 Aug 01/05 1 1 1CES 1
Eng1(2) HP Valve Abnormally Closed - Indicating Figure 021
R 1EFF : 1 1 1CES ALL 1 111 36-20-00 Page 39 May 01/05
L(R) Wing Leak Detection Fault - Indicating Figure 022
1EFF : 1 1R 1CES ALL 1 11 1 36-20-00 Page 40 May 01/05
Bleed Monitoring Fault - Indicating Figure 023
1EFF : 1 1R 1CES ALL 1 11 1 36-20-00 Page 41 May 01/05
APU Bleed Fault Closed - Indicating Figure 024
1EFF : 1 1R 1CES ALL 1 11 1 36-20-00 Page 42 May 01/05
PRESSURE AND TEMPERATURE MONITORING - DESCRIPTION AND OPERATION
_______________________________________________________________
1. General
_______
**ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
(Ref. Fig. 001) R **ON A/C 151-199, 401-499,
(Ref. Fig. 001A)
**ON A/C ALL
Two pressure transducers, one control temperature sensor (CTS) and two bleed air monitoring computers (BMC1, 1HA1 and BMC2, 1HA2) monitor the pressure and the temperature of the engine bleed air.
2. Component Location
__________________
**ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
(Ref. Fig. 001) R **ON A/C 151-199, 401-499,
(Ref. Fig. 001A)
**ON A/C ALL
(Ref. Fig. 002)
Component Location - Pylon
Figure 001
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 36-21-00Page 2 1301-399, 1May 01/05 1 1 1CES 1
Component Location - Pylon
Figure 001A
R 1EFF : 151-199, 401-499, 1 36-21-00Page 3 1 1 Aug 01/05 1 1 1CES 1
Component Location - Avionics Compartment Figure 002
1EFF : 1 1R 1CES ALL 1 11 1 36-21-00 Page 4 Feb 01/00
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
-------------------------------------------------------------------------------1HA1 BMC-1 95VU 121 811 36-11-34 1HA2 BMC-2 96VU 122 811 36-11-34 6HA1 SENSOR-EXCHANGER OUT TEMP, ENG 1 413 413EL 36-11-17 6HA2 SENSOR-EXCHANGER OUT TEMP, ENG 2 423 423EL 36-11-17 7HA1 XDCR-BLEED TRANSFER PRESS, ENG 1 415 415AL 36-11-15 7HA2 XDCR-BLEED TRANSFER PRESS, ENG 2 425 425AL 36-11-15 8HA1 XDCR-BLEED REGULATED PRESS, ENG 1 415 415AL 36-11-16 8HA2 XDCR-BLEED REGULATED PRESS, ENG 2 425 425AL 36-11-16
3. System Description
__________________
**ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
(Ref. Fig. 003)
R **ON A/C 151-199, 401-499,
(Ref. Fig. 003A)
**ON A/C ALL
Two pressure transducers are installed on a bracket in each pylon.
They are similar but their functions are different:
-
the PRESSURE TRANSDUCER 7HA1(2) is used to measure the transferred pressure which is the pressure between the bleed pressure regulator valve and the HP bleed valve. The pressure transducer 7HA1(2) is electrically connected to the BMC 1(2) for monitoring purpose. A sensing line connects the pressure transducer 7HA1(2) to the pneumatic duct downstream of the HP bleed valve.
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