(10)
 Remove the bolt (12), the washer (13) and the retainer plate (14) from the differential pressure sensor (4). Move the tube (15) away from the differential pressure sensor (4).

 (11)
 Remove the bolt (16), the washer (17) and the retainer plate (18) from the static sensor assembly (19). Move the tube (20) away from the static sensor assembly (19).

 (12)
 Remove the bolts (21) from the airflow sensor (2).

 (13)
 Remove the airflow sensor (2) and the gasket (22) with the volume chamber (23).

 (14)
 Remove and discard the gasket (22).

 (15)
 Remove and discard the packing (24) and (25).

 (16)
 Remove the bolts (26) from the airflow sensor (2) and move apart the airflow sensor (2) and the volume chamber (23).

 (17)
 Remove and discard the packing (27) .

 (18)
 Put blanking plugs on the disconnected line ends.

 Sensor Airflow Figure 401/TASK 49-51-14-991-001 
R  EFF :  001-003, 051-099, 401-499,  49-51-14 Page 404 Aug 01/05
 CES 

 TASK 49-51-14-400-001
 Installation of the Airflow Sensor (GTCP 36-300)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  Torque Wrench : range 0.00 to 1.20 m.daN
 (0.00 to 9.00 lbf.ft)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific  lockwire-corrosion resistant steel 0.8 mm (0.032 in) dia
 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
6 packings 49-51-13 01 -060 11 packings 49-51-13 01 -100 22 gasket 49-51-13 01 -120 24 packing 49-51-13 01 -060 25 packing 49-51-13 01 -040 27 packings 49-51-13 01 -060

 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
 the Ground Connector 49-00-00-860-003 APU Start by External Power (GTCP 36-300) 49-00-00-860-004 APU Shutdown by External Power (GTCP 36-300) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access
 3. Job Set-up
__________
 Subtask 49-51-14-860-051
 A. Aircraft Maintenance Configuration
 (1)
 Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 (2)
 On the panel 25VU, make sure that the APU MASTER SW p/bsw is OFF.

 (3)
 Make sure that there is a warning notice in the cockpit to tell persons not to start the APU.

 (4)
 Make sure that hydraulic systems are depressurized
 (Ref. TASK 29-00-00-864-001).

 Subtask 49-51-14-865-051
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41

 Subtask 49-51-14-010-052
 C. Get Access
 (1)
 Make sure that the access platform is in position below the APU compartment.

 (2)
 Make sure that the APU access doors 315AL, 316AR are open (Ref. TASK 52-41-00-010-001).

 (3)
 Make sure that the light SW 11LJ is set to the ON position.

 4. Procedure
_________ Subtask 49-51-14-420-050
 A. Installation of the Airflow sensor.
 (1)
 Examine the airflow sensor for any cracks or damage, replace if necessary.

 (2)
　
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