S 215-020
(3)
Make sure the R RECIRC FAN INOP light, on the P5 panel, comes on.
S 215-021
(4)
Make sure the EICAS advisory message R RECIR FAN shows on the upper display.
S 865-022
(5)
Close this circuit breaker on P37 panel:
(a)
37J5, RECIRC FAN R
S 215-023
(6)
Make sure the R RECIRC FAN INOP light goes off.
S 215-024
(7)
Make sure the EICAS advisory message R RECIR FAN does not show on the upper display.
S 215-025
(8)
Feel for the airflow at an outlet in the passenger compartment.
S 865-026
(9)
Push the R RECIRC FAN switch-light, on the P5 panel, to the off position.
(a)
Make sure the INOP light comes on.
S 215-026
(10) Make sure the EICAS advisory message R RECIR FAN shows on the upper display.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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757 MAINTENANCE MANUAL
F. Do the Test for the Cargo Fire Interface System
S 865-027
(1)
Push the L and R RECIRC FAN switch-lights, on the pilots' overhead panel, P5, to the on position.
(a)
Make sure the INOP lights go off.
S 865-028
(2)
Push the FWD CARGO FIRE switch-light, on the pilots aft control stand panel, P8, to the ARMED position.
(a)
Make sure the ARMED light comes on.
S 215-029
(3)
Make sure the L and R RECIRC FAN INOP lights, on the P5 panel, come on.
S 865-030
(4)
Push the FWD CARGO FIRE switch-light, on the P8 panel, to the usual position.
(a)
Make sure the ARMED light goes off.
S 215-031
(5)
Make sure the L and R RECIRC FAN INOP lights, on the P5 panel, go off.
S 865-032
(6)
Push the AFT CARGO FIRE switch-light, on the P8 panel, to the ARMED position.
(a)
Make sure the ARMED light comes on.
S 215-028
(7)
Make sure the R RECIRC FAN INOP light, on the P5 panel, comes on.
S 865-029
(8)
Push the AFT CARGO FIRE switch-light, on the P8 panel, to the usual position.
(a)
Make sure the ARMED light goes off.
(9)
Make sure the R RECIRC FAN INOP light, on the P5 panel, goes off.
S 215-033
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
G. Put the Airplane Back to Its Usual Condition
S 865-031
(1)
Remove the DO-NOT-OPERATE tags from the L and R PACK selectors, on the P5 panel.
S 865-038
(2)
Remove the electrical power, if it is not necessary (Ref 24-22-00).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
CABIN AIR RECIRCULATION FAN - REMOVAL/INSTALLATION
__________________________________________________
1. General_______
A. Two cabin-air recirculation-fans are used to supply air to the mix manifold. The right recirculation fan pulls air from the mix manifold bay. The left recirculation fan also pulls air from the electrical equipment system. The right recirculation fan is installed on the right side of the mix manifold. The left recirculation fan is installed in the forward end of the left side of the forward cargo compartment. This procedure has instructions to remove and install the left and right recirculation fans.
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