-install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-001)

 -refer to Para. 4.C.

 * if the impedance is more than 3 KOhms:

 -disconnect the connector between the sensing elements
 34HF and 35HF

 -connect the connector between the sensing elements 33HF
 and 34HF

 -do a check of the impedance read on the LOOP CONTROLLER
 (9240SI).
 ** if the impedance is less than 3 KOhms:

 -replace the OVHT SENS ELEMENT (34HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)

 -connect all the cables or connectors disconnected

 -disconnect the LOOP CONTROLLER (9240SI) from the BMC1
 connector

 -install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-001)

 -refer to Para. 4.C.
 ** if the impedance is more than 3 KOhms:

 -replace the OVHT SENS ELEMENT (35HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC1 connector
 -install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 . If the impedance is more than 3 KOhms:

 -disconnect the connector between the sensing element 36HF and the cable 30HF
 -connect the connector between the sensing elements 35HF and 36HF
 1
 -EFF : ALL

-∞∞36-22-00∞∞∞∞∞∞∞∞∞∞Page 259
 --May 01/04R ---CES -

 -do a check of the impedance read on the LOOP CONTROLLER (9240SI).
 * if the impedance is less than 3 KOhms:
 -replace the OVHT SENS ELEMENT (36HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)
 -connect all the cables or connectors disconnected
 -disconnect the LOOP CONTROLLER (9240SI) from the BMC1 connector
 -install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 * if the impedance is more than 3 KOhms:
 -replace the CABLE ASSY (30HF) (Ref. AMM TASK 36-22-18-000-001) and (Ref. AMM TASK 36-22-18-400-001)
 -connect all the cables or connectors disconnected
 -
do a check of the impedance read on the LOOP CONTROLLER
 (9240SI).
 ** if the impedance is less than 3 KOhms:

 -
do a check and repair the wiring between the pin AA/4B of the BMC1 (1HA1) and the cable 30HF

 -disconnect the LOOP CONTROLLER (9240SI) from the BMC1 connector
 -install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 ** if the impedance is more than 3 KOhms:

 -disconnect the LOOP CONTROLLER (9240SI) from the BMC1 connector
 -install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-001)
 -refer to Para. 4.C.
 B. If the test gives the TEST OK message:
 -
do a functional test of the bleed air supply system (Ref. AMM TASK 36-11-00-720-004)

 -
do the leak check on the bleed air ducts (Ref. AMM TASK 36-22-00-790-001).

 -repair the duct which causes the leak.
 C. Do the test given in para. 3.
 1
 -EFF : ALL

-∞∞36-22-00∞∞∞∞∞∞∞∞∞∞Page 260
 --May 01/04R ---CES -

 Leak Detection from the Loop B in the Left Wing
 1. Possible Causes
_______________
 -BMC-2 (1HA2)
 -CABLE-CONNECTING (57HF)
 -
ELEMENT-OVERHEAT SENSING (63HF)

 -
ELEMENT-OVERHEAT SENSING (62HF)

 -OVHT SENS ELEMENT (61HF)
 -
ELEMENT-OVERHEAT SENSING (60HF)

 -
ELEMENT-OVERHEAT SENSING (59HF)

 -
ELEMENT-OVERHEAT SENSING (58HF)

 -OVHT SENS ELEMENT (78HF)
 -
SNSG ELEM-OVHT, L WING LOOP B (56HF)

 -
SNSG ELEM-OVHT, L WING LOOP B (55HF)

 -
SNSG ELEM-OVHT, L WING LOOP B (54HF)

 -
SNSG ELEM-OVHT, L WING LOOP B (53HF)

 -
CABLE-CONNECTING, L WING LOOP B (52HF)

 -
CABLE-CONNECTING, L WING LOOP B (51HF)

 -
SNSG ELEM-OVHT, L WING LOOP B (50HF)

 -
SNSG ELEM-OVHT, L WING LOOP B (49HF)

 -
SNSG ELEM-OVHT, L WING LOOP B (83HF)

 -CABLE-CONNECTING, L WING LOOP B (77HF)
 -wiring
 -duct
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
　
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