R a_ If all applicable HEATERs stay cold:
R - replace the SENSOR-POTABLE WATER DE ICING (10DW) (Ref.
R AMM TASK 30-73-17-000-001) and (Ref. AMM TASK 30-73-17-R 400-001).
R (b) If one microfuse is not OK:
R - do a check for a short circuit and replace the microfuse (Ref.
R ASM 30-73/01).
R (2) If the green III/IV LED of the CONTROL UNIT 3DW does not come on:
R - do a check of the related microfuses:
R (a) If the microfuses are OK:
R - replace the CTL UNIT-POTABLE AND WASTE WATER DEICING (3DW)
R (Ref. AMM TASK 30-73-34-000-001) and (Ref. AMM TASK 30-73-34-R 400-001).
R 1_ If the fault continues:
R - do the functional test of the potable water ice protection
R (Ref. AMM TASK 30-73-00-720-001) and replace the related
R HEATER(s) which stay(s) cold (Ref. AMM TASK 30-73-53-000-R 001) and (Ref. AMM TASK 30-73-53-400-001).
R a_ If all applicable HEATERs stay cold:
R - replace the 300DW (300DW) (Ref. AMM TASK 30-73-17-000-R 001) and (Ref. AMM TASK 30-73-17-400-001).
R (b) If one microfuse is not OK:
R - do a check for a short circuit and replace the microfuse (Ref.
R ASM 30-73/01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞30-73-00∞∞∞∞∞∞∞∞∞∞Page 203
May 01/04 CES
R (3) If both green LEDs do not come on:
R - replace the CTL UNIT-POTABLE AND WASTE WATER DEICING (3DW) (Ref.
R AMM TASK 30-73-34-000-001) and (Ref. AMM TASK 30-73-34-400-001).
R (a) If the fault continues:
R - do a check of the subsequent signals:
R - 115VAC at connector 3DW-A/14,
R - 28VDC at connector 3DW-A/16,
R - GND at connector 3DW-A/12,
R - GND at connector 3DW-A/15 (Ref. ASM 30-73/01).
R 1_ If one signal is missing:
R - do a check and repair of the aircraft wiring (Ref. ASM 30-
R 73/01).
R **ON A/C ALL
B. Do the test as given in the Para. 3.A.
5. Close-up________
A. Put the aircraft back to its initial configuration.
POTABLE WATER ICE PROTECTION - TASK SUPPORTING DATA
___________________________________________________
Potable Water Ice Protection - Electrical Schematic
Figure 301
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 201-299, ∞∞30-73-00∞∞∞∞∞∞∞∞∞∞Page 302
May 01/05 CES
Potable Water Ice Protection - Electrical Schematic
Figure 301A
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 151-199, 401-499, ∞∞30-73-00∞∞∞∞∞∞∞∞∞∞Page 303
Aug 01/05 CESR Potable Water Ice Protection - Electrical Schematic R Figure 301B
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞30-73-00∞∞∞∞∞∞∞∞∞∞Page 304
May 01/04 CES
ICE DETECTION - FAULT ISOLATION PROCEDURES
__________________________________________
R **ON A/C 401-499,
R TASK 30-81-00-810-801
R Loss of the L Ice Detector and the R Ice Detector
R 1. Possible Causes
_______________
R - DET-ICE, L (2DD1)
R - DET-ICE, R (2DD2)
R - wiring between pin A/7 of the L ice detector and the ground terminal
R - wiring between pin A/7 of the R ice detector and the ground terminal
R - wiring between pin A/1 of the L ice detector and the circuit breaker
R (4DD1)
R - wiring between pin A/1 of the R ice detector and the circuit breaker
R (4DD2)
R - C/B-ANTI ICE/ICE DET/L (4DD1)
R - C/B-ANTI ICE/ICE DET/R (4DD2)
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 30-81-00-710-001 Operational Test of the Ice Detection System
R AMM 30-81-31-000-001 Removal of the Ice Detector (2DD1, 2DD2)
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