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--Aug 01/05 ---CES - -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-22-16-000-003
AMM 36-22-16-000-004
AMM 36-22-16-000-005
AMM 36-22-16-000-006
AMM 36-22-16-000-007
AMM 36-22-16-400-001
AMM 36-22-16-400-002
AMM 36-22-16-400-003
AMM 36-22-16-400-004
AMM 36-22-16-400-005
AMM 36-22-16-400-007
AMM 36-22-16-400-008
AMM 36-22-18-000-001
AMM 36-22-18-400-001
ASM 36-22/01
3. Fault Confirmation
__________________
A. Test
Removal of the Cables 24HF(40HF),51HF(67HF)
Removal of the Overheat Sensing Elements
26HF(42HF),53HF(69HF)
Removal of the Overheat Sensing Elements
27HF(43HF),50HF(66HF),23HF(39HF),54HF (70HF)
Removal of the Overheat Sensing Elements
28HF(44HF),49HF(65HF),55HF(71HF), 22HF(38HF)
Removal of the Cables 25HF(41HF),52HF(68HF)
Installation of the Overheat Sensing Elements
29HF(45HF),56HF(72HF),81HF(80HF), 83HF(82HF)
Installation of the Cables 21HF(37HF),77HF(64HF)
Installation of the Cables 24HF(40HF),51HF(67HF)
Installation of the Overheat Sensing Elements
26HF(42HF),53HF(69HF)
Installation of the Overheat Sensing Elements
27HF(43HF),50HF(66HF),23HF(39HF), 54HF(70HF)
Installation of the Overheat Sensing Elements
28HF(44HF),49HF(65HF),55HF(71HF), 22HF(38HF)
Installation of the Cables 25HF(41HF),52HF(68HF)
Removal of the Fuselage Overheat Sensing-Elements
(Loop A and B)
Installation of the Fuselage Overheat
Sensing-Elements (Loop A and B)
NOTE : The overheat detection threshold is between 117 and 131 degrees
____ Celsius. An overheat detection by one loop can occur in these conditions:
-high Outside Air Temperature (OAT),
-ECS supplied with hot bleed air. In these conditions, the ambient air around the sensing elements can increase to the detection threshold but there is not an air leak. If there is an air leak, there will be an AIR L(R) WING LEAK warning on the ECAM. No other maintenance action is necessary if:
-
the overheat detection was by one loop only with high OAT and ECS supplied with hot bleed air,
-
the result of the BMC BITE test is TEST OK.
(1) Do the BITE test of the BMC2 (Ref. AMM TASK 36-11-00-740-001).
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--May 01/04R ---CES -
4. Fault Isolation
_______________
A. If the test gives the maintenance message: L WING LOOP B
-remove the BMC2 (1HA2) (Ref. AMM TASK 36-11-34-000-001)
- on the shelf 96VU, connect the LOOP CONTROLLER (9240SI) between the connector 1HA2-AA/5D and the ground (Ref. ASM 36-22/01)
-do a check of the impedance read on the LOOP CONTROLLER (9240SI).
(1)
If the impedance is more than 3 KOhms:
-disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
-replace the BMC-2 (1HA2) which is removed (Ref. AMM TASK 36-11-34-000-001) and (Ref. AMM TASK 36-11-34-400-001)
-refer to Para. 4.C.
(2)
If the impedance is less than 3 KOhms:
-disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
-do a visual inspection of the sensing elements and cables on the L wing loop B.
(a)
If a sensing element or cable is damaged:
-replace the sensing element or cable (Ref. AMM TASK 36-22-18-000-001), (Ref. AMM TASK 36-22-18-400-001), (Ref. AMM TASK 36-22-16-000-001), (Ref. AMM TASK 36-22-16-400-001), (Ref. AMM TASK 36-22-16-000-002), (Ref. AMM TASK 36-22-16-400-002), (Ref. AMM TASK 36-22-16-000-003), (Ref. AMM TASK 36-22-16-400-003), (Ref. AMM TASK 36-22-16-000-004), (Ref. AMM TASK 36-22-16-400-004) (Ref. AMM TASK 36-22-16-000-005), (Ref. AMM TASK 36-22-16-400-005), (Ref. AMM TASK 36-22-16-000-006), (Ref. AMM TASK 36-22-16-400-008), (Ref. AMM TASK 36-22-16-000-007), (Ref. AMM TASK 36-22-16-400-007).
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