R a_ If the impedance is less than 3 KOhms:
R - disconnect the connector between the sensing elements
R 16HF and 17HF
R - do a check of the impedance read on the LOOP CONTROLLER
R (9240SI)
R (AA) if the impedance is less than 3 KOhms:
R - replace the OVHT SENS ELEMENT (16HF) (Ref. AMM TASK 36-R 22-17-000-001) and (Ref. AMM TASK 36-22-17-400-001)
R - connect all the cables or connectors disconnected
R - disconnect the LOOP CONTROLLER (9240SI) from the BMC1
R connector
R - install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-R 001),
R - refer to Para. 4.B.

 1
R -EFF : 301-399,

-∞∞36-22-00∞∞∞∞∞∞∞∞∞∞Page 293
 --May 01/04 ---CES -R (AB) if the impedance is more than 3 KOhms: R - replace the OVHT SENS ELEMENT (17HF) (Ref. AMM TASK 36-R 22-17-000-001) and (Ref. AMM TASK 36-22-17-400-001) R - connect all the cables or connectors disconnected R - disconnect the LOOP CONTROLLER (9240SI) from the BMC1 R connector R - install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-R 001) R - refer to Para. 4.B.

R b_ If the impedance is more than 3 KOhms:R - connect the connector between the sensing elements 17HF R and 18HF R - disconnect the connector between the sensing element 19HF R and the cable 20HF R - do a check of the impedance read on the LOOP CONTROLLER R (9240SI) R (AA) if the impedance is less than 3 KOhms: R - disconnect the connector between the sensing elements R 18HF and 19HF R - do a check of the impedance read on the LOOP CONTROLLER R (9240SI). R (1.1) if the impedance is less than 3 KOhms: R - replace the OVHT SENS ELEMENT (18HF) (Ref. AMM TASK 36-R 22-17-000-001) and (Ref. AMM TASK 36-22-17-400-001) R - connect all the cables or connectors disconnected R - disconnect the LOOP CONTROLLER (9240SI) from the BMC1 R connector R - install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-R 001) R - refer to Para. 4.B. R (1.2) if the impedance is more than 3 KOhms: R - replace the OVHT SENS ELEMENT (19HF) (Ref. AMM TASK 36-R 22-17-000-001) and (Ref. AMM TASK 36-22-17-400-001) R - connect all the cables or connectors disconnected R - disconnect the LOOP CONTROLLER (9240SI) from the BMC1 R connector R - install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-R 001) R - refer to Para. 4.B. R (AB) if the impedance is more than 3 KOhms: R - replace the CABLE ASSY (20HF) (Ref. AMM TASK 36-22-17-R 000-001) and (Ref. AMM TASK 36-22-17-400-001) R - connect all the cables or connectors disconnected R - do a check of the impedance read on the LOOP CONTROLLER R (9240SI) R (aa) if the impedance is less than 3 KOhms: R - do a check and repair the wiring between the pin AA/8B R of the BMC1 (1HA1) and the cable 20HF R - connect all the cables or connector disconnected R - disconnect the LOOP CONTROLLER (9240SI) from the BMC1 R connector
 1
R -EFF : 301-399,

-∞∞36-22-00∞∞∞∞∞∞∞∞∞∞Page 294
 --May 01/04 ---CES -

R  - install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-
R  001) 
R  - refer to Para. 4.B. 
R  (ab) if the impedance is more than 3 KOhms: 
R  - disconnect the LOOP CONTROLLER (9240SI) from the BMC1 
R  connector 
R  - install the BMC1 (1HA1) (Ref. AMM TASK 36-11-34-400-
R  001) 
R  - refer to Para. 4.B. 
R  **ON A/C ALL
 B. Do the test given in para. 3.

 1 -EFF : ALL

-∞∞36-22-00∞∞∞∞∞∞∞∞∞∞Page 295
 --May 01/04 ---CES - Leak Detection on the Engine 1 Pylon

 1. Possible Causes
_______________
 -BMC-1 (1HA1)
 -CABLE-CONNECTING, ENG 1 PYLON (2HF1)
 -SNSG ELEM-OVHT, ENG 1 PYLON (1HF1)
 -CABLE ASSY (3HF1)
 -wiring
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
9240SI 1 LOOP CONTROLLER
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 36-11-00-740-001 BITE Test of the BMC 1(2)
 AMM 36-11-34-000-001 Removal of the BMC (1HA1, 1HA2)
 AMM 36-11-34-400-001 Installation of the BMC (1HA1, 1HA2)
 AMM 36-22-15-000-001 Removal of the Pylon Overheat Sensing Element (1HF1,

 1HF2) AMM 36-22-15-400-001 Installation of the Pylon Overheat Sensing Element (1HF1, 1HF2) ASM 36-22/01
　
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