*
acetone (Ref. 70-30-00)
*
white spirit (Ref. 70-30-00)
*
stoddard solvent (Ref. 70-30-00)
*
ardrox 552 (Ref. 70-30-00)
*
turco ind 79 (Ref. 70-30-00)
*
mag-chem teksol (Ref. 70-30-00)
*
degreasol 99 R (Ref. 70-30-00)
*
mag-chem skysol (Ref. 70-30-00)
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C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 73-21-20-000-002 Removal of the T25 Temperature Sensor 73-21-20-400-002 Installation of the T25 Temperature Sensor 78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 78-36-00-410-040 Closing of the Thrust Reverser Doors 73-21-20-991-301 Fig. 601
3. Job Set-up
__________
Subtask 73-21-20-941-053
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
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B. Get Access
(1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Put the access platform in position. Subtask 73-21-20-040-055
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041). Subtask 73-21-20-010-057
D. Open the right thrust reverser doors (Ref. TASK 78-36-00-010-040). FOR 1000EM1 452AR FOR 1000EM2 462AR
Subtask 73-21-20-010-061
E. Remove the T25 sensor (Ref. TASK 73-21-20-000-002).
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(Ref. Fig. 601/TASK 73-21-20-991-301) Subtask 73-21-20-210-051
A. Do an Inspection of the T25 Sensor
-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. All areas for:
A. Cracks
R B. Dirt build-up in
R air inlet
R
R
R
R
R
R
R
R
R
R
R
2. Electrical connector
threads for:
Damage
3. Electrical connector
pins for:
Not serviceable Replace T25 sensor
Air must circulate Clean T25 sensor with
freely bristle brush and stoddard solvent (Material No. CP2011) or acetone (Material No. CP1039) or ardrox 552 (Material No. CP2559) or turco ind 79 (Material No. CP2560) or mag-chem teksol (Material No. CP2566) or degreasol 99 R (Material No. CP2584) or mag-chem skysol (Material No. CP2656) or white spirit (Material No. CP2010).
30 percent damage in one lead-in thread or 20 percent damage on several threads Chase threads if inlimits, or replace T25sensor (Ref. TASK 73-21-20-000-002) and (Ref. TASK 73-21-20-400-002)
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T25 Sensor
Figure 601/TASK 73-21-20-991-301
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