S 866-401
(13)
Do the EICAS maintenance message erase procedure (AMM 31-41-00/201). S 866-455
(14)
Put the air/ground relay system in the air mode (AMM 32-09-02/201).
S 866-402
(15)
Push the ECS/MSG pushbutton on the EICAS maintenance panel on the P61 panel.
S 866-403
(16)
Push the R RECIRC FAN switch on the P5 panel to the off position.
(a)
Make sure the R RECIRC FAN INOP light comes on.
(b)
Make sure the EICAS message, R RECIRC FAN, is shown on the top display.
(c)
Make sure the EICAS message, OVBD EX VAL OPEN, does NOT show on the bottom display.
WARNING:_______ OBEY THE PROCEDURE THAT PUTS THE AIRPLANE IN THE AIR MODE. IF
YOU DO THE PROCEDURE INCORRECTLY, INJURIES TO PERSONS AND
DAMAGE TO EQUIPMENT CAN OCCUR.
S 866-404
(17) Push the FWD Cargo Fire switch on the APU/CARGO Fire Control panel, P8.
(a)
Make sure the FWD ARMED switchlight is ON.
(b)
Make sure the L RECIRC FAN INOP light comes on.
(c)
Listen for the fan noise or feel for air at the outlet to make sure the Left recirculation fan stops.
(d)
Make sure that the EICAS messages, L RECIRC FAN, is shown on the top display.
(e)
Make sure the EICAS message, OVBD EX VAL OPEN, is shown on the bottom display.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
26-23-01
ALL ú ú 07 Page 622 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 866-405
(18) Push the FWD Cargo Fire switch and release.
(a)
Make sure the FWD ARMED switch-light is OFF.
(b)
Make sure the L RECIRC FAN INOP light goes off.
(c)
Make sure the EICAS message, L RECIRC FAN, does NOT show on the top display.
(d)
Make sure the fan noise comes on again and feel for the air flow at any passenger cabin conditioned air outlet.
S 866-441
(19)
Push the EQUIP COOLING ALTN switch-light on the P5 panel to the NORMAL position.
S 866-456
(20)
Put the air/ground relay system back to the ground mode (AMM 32-09-02/201).
S 866-440
(21)
Do the EICAS maintenance message erase procedure (AMM 31-41-00/201).
(a) Make sure the EICAS message, OVBD EX VAL OPEN, does NOT show on the bottom display.
S 716-407
(22)
Do the activation procedure for the spoilers (AMM 27-61-00/201) if you did the deactivation procedure.
S 866-408
(23)
Push the L RECIRC FAN switch to the off position.
(a) Make sure the L RECIRC FAN INOP light comes on.
S 866-194
(24) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel:
(a)
6H5, FIRE EXTINGUISHING CARGO BTL 1
(b)
6H6, FIRE EXTINGUISHING CARGO BTL 2
TASK 26-23-01-716-181
6. Right Air Conditioning Recirculation System Stops After the AFT ARMED Switch____________________________________________________________________________ Activation Check________________
A. Do a check of the Right Air Conditioning Recirculation System Stops After the AFT ARMED Switch Activation
S 866-252
(1) Make sure these circuit breakers on the P11 panel are closed:
(a)
11P14, RECIRC CARGO FIRE CONT LEFT or RECIRC FAN L
(b)
11P23, RECIRC CARGO FIRE CONT RIGHT or RECIRC FAN R
S 866-423
(2) Make sure these circuit breakers on the P70 panel are closed:
(a) 70C10, RECIRC FAN L
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
26-23-01
ALL ú ú 06 Page 623 ú Sep 28/01
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