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 from the External Power 25-13-41-000-001 Removal of the Ceiling Panels 25-13-41-400-001 Installation of the Ceiling Panels 21-23-00-991-001 Fig. 501
 3. Job Set-up
__________
 Subtask 21-23-00-861-050
 A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
 Subtask 21-23-00-865-050
 B. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------122VU AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL 5HU U21 122VU AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY 6HU U19
 Subtask 21-23-00-010-050
 C. Remove the ceiling panels 222BC between FR 16-17, and 251HC between FR 61-63 (Ref. TASK 25-13-41-000-001).
 1EFF : ALL 1 21-23-00Page 502 1 1 Nov 01/00R 1 1 1CES 1

 4. Procedure
_________
 (Ref. Fig. 501/TASK 21-23-00-991-001)
R  **ON A/C 001-049, 051-099, 101-149, 201-299,
 Subtask 21-23-00-720-050
 A. Functional Test of the Air Extraction Duct
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. Remove the plug (4) and the  On the manometer: packing (3) from the forward - the pressure reads between 6 mbar pressure measurement point 1025. (0.08 psi) and 10 mbar (0.14 psi).
 -discard the packing (3).
 -connect the MANOMETER (EMA84)
 to the forward pressure
 measurement point 1025 with a
 piece of silicon tubing, I/D

 4.0 mm (0.157 in.), approximate
 length 2.0 m (6.5 ft.).

 2. Disconnect the manometer and the
 silicone tubing from the forward
 pressure measurement point 1025.

 -put the new packing (3) in
 position on the plug (4) and
 install the plug (4) in the
 forward pressure measurement
 point 1025.

 -TORQUE the plug (4) to 70
 lbf.in (0.79 m.daN) maximum.

 3. Remove the screw (1) and the lock  On the manometer: washer (2) from the aft pressure - the pressure reads between 11 mbar measurement point 1026. (0.15 psi) and 15 mbar (0.21 psi).
 -discard the lock washer (2).
 -connect the MANOMETER (EMA84)
 to the aft pressure measurement
 point 1026 with a piece of
 silicone tubing, I/D 4.0 mm

 (0.157 in.), approximate length
 2.0 m (6.5 ft.).

R  Pressure Measurement Point - Locations Figure 501/TASK 21-23-00-991-001
 1EFF : 1 1 1CES  ALL  1 111 21-23-00 Page 504 Aug 01/98

 

 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
4. Disconnect the manometer and the
 silicone tubing from the aft
 pressure measurement point 1026.

 -put the new lock washer (2) in
 position on the screw (1) and
 install the screw (1) in the
 aft pressure measurement point
 1026.

 -TORQUE the screw (1) to 70
 lbf.in (0.79 m.daN) maximum.

R  **ON A/C 151-199, 401-499,
 Subtask 21-23-00-720-050-A
 A. Functional Test of the Air Extraction Duct
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. Remove the plug (4) and the  On the manometer: packing (3) from the forward - the pressure reads between 5 mbar pressure measurement point 1025. (0.07 psi) and 10 mbar (0.14 psi).
 -discard the packing (3).
 -connect the MANOMETER (EMA84)
 to the forward pressure
 measurement point 1025 with a
 piece of silicon tubing, I/D

 4.0 mm (0.157 in.), approximate
 length 2.0 m (6.5 ft.).

 2. Disconnect the manometer and the
 silicone tubing from the forward
 pressure measurement point 1025.

 -put the new packing (3) in
 position on the plug (4) and
 install the plug (4) in the
 forward pressure measurement
 point 1025.

 -TORQUE the plug (4) to 70
 lbf.in (0.79 m.daN) maximum.

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-23-00Page 505 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
　
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