26HF(42HF),53HF(69HF)
AMM 36-22-16-000-005 Removal of the Overheat Sensing Elements
27HF(43HF),50HF(66HF),23HF(39HF),54HF (70HF)
1 -EFF : ALL
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--Aug 01/05 ---CES - -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-22-16-000-006 Removal of the Overheat Sensing Elements
28HF(44HF),49HF(65HF),55HF(71HF), 22HF(38HF)
AMM 36-22-16-000-007 Removal of the Cables 25HF(41HF),52HF(68HF)
AMM 36-22-16-400-001 Installation of the Overheat Sensing Elements
29HF(45HF),56HF(72HF),81HF(80HF), 83HF(82HF)
AMM 36-22-16-400-002 Installation of the Cables 21HF(37HF),77HF(64HF)
AMM 36-22-16-400-003 Installation of the Cables 24HF(40HF),51HF(67HF)
AMM 36-22-16-400-004 Installation of the Overheat Sensing Elements
26HF(42HF),53HF(69HF)
AMM 36-22-16-400-005 Installation of the Overheat Sensing Elements
27HF(43HF),50HF(66HF),23HF(39HF), 54HF(70HF)
AMM 36-22-16-400-007 Installation of the Overheat Sensing Elements
28HF(44HF),49HF(65HF),55HF(71HF), 22HF(38HF)
AMM 36-22-16-400-008 Installation of the Cables 25HF(41HF),52HF(68HF)
AMM 36-22-18-000-001 Removal of the Fuselage Overheat Sensing-Elements
(Loop A and B)
AMM 36-22-18-400-001 Installation of the Fuselage Overheat
Sensing-Elements (Loop A and B)
ASM 36-22/01
3. Fault Confirmation
__________________
A. Test
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).
1
-EFF : ALL
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--May 01/04R ---CES -
4. Fault Isolation
_______________
A. If the test gives the maintenance message: R 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/4B 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:
-do a visual inspection of the sensing elements and cables on the R wing loop B.
(a)
If a sensing element or cable is damaged:
-replace the sensing element or cable (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 36-22-16-400-007), (Ref. AMM TASK 36-22-16-000-007), (Ref. AMM TASK 36-22-16-400-008)
-disconnect the LOOP CONTROLLER (9240SI) from the BMC2 connector
-install the BMC2 (Ref. AMM TASK 36-11-34-400-001)
-refer to Para. 4.C.
(b)
If no sensing element is damaged:
-disconnect the connector between the sensing element 69HF and the cable 70HF
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