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757
MAINTENANCE MANUAL
CABIN HIGH ALTITUDE WARNING SWITCH, S10553
CABIN ALTITUDE WARNING SWITCH, S431
B
CABIN ALTITUDE WARNING SWITCH
AIRPLANES WITH CABIN HIGH ALTITUDE WARNING SWITCH
Cabin Altitude Warning Switch - Removal/Installation
Figure 401 (Sheet 2)
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757 MAINTENANCE MANUAL
C. Procedure
S 864-029
(1)
Open the E/E bay access door 119AL (AMM 06-41-00).
S 424-028
(2)
Put the switch and it's support bracket against the mounting holes on the P36 panel.
S 424-027
(3)
Install the switch and it's support bracket to the structure with bolts, washers, and nuts.
(a)
Make sure the support bracket for the cabin altitude warning switch is not too tight. The switch can be damaged if the bracket is too tight.
S 424-026
(4)
Install the electrical connector.
(5)
Close the E/E bay access door 119AL (AMM 06-41-00).
S 864-025
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A
757 FAULT ISOLATION/MAINT MANUAL
HEATING
COMPONENT FIG. SHT 102 QTY ACCESS/AREA REFERENCE AMM
CIRCUIT BREAKER - FLT COMPT, P11
CARGO HEATER AFT, C4071 1 11N18 *
CARGO HEATER FAN FWD, C4059 1 11N17 *
CIRCUIT BREAKER -FAN CONT AFT CARGO, C4072 1 119BL, MAIN EQUIP CTR, P37 11N22 *
AFT CARGO FAN, C3010 1 37C2 *
HEATERS F/O AUX HI, C699 1 37F4 *
CIRCUIT BREAKER -HEATERS F/O AUX LO, C700 1 37F3 P70 *
AFT CARGO HTR, C3009 1 70C8 *
CAPT AUX HTR HI, C662 1 70A6 *
CAPT AUX HTR LO, C663 1 70A5 *
FWD CARGO FAN, C3002 1 70B8 *
FAN - AFT CARGO HEATING FLOW 1 822, AFT CARGO COMPT 21-44-06
FAN - FWD CARGO HEATING FLOW 1 821, FWD CARGO COMPT 21-43-04
FILTER - AFT CARGO HEAT INLET GRILL 2 822, AFT CARGO COMPT 21-44-06
FILTER - FWD CARGO HEAT INLET GRILL 2 821, FWD CARGO COMPT 21-43-04
HEATER - AFT CARGO 1 822, AFT CARGO COMPT 21-44-05
HEATER - FOOT ELECTRIC SURFACE 4 FLT COMPT 21-45-01
HEATER - SHOULDER AIR SUPPLY RELAY - (FIM 21-40-00/101 MODULE - APU/CARGO FIRE CONTROL, M10444 2 1 FLT COMPT FLT COMPT, P8 21-45-02 *
AFT CARGO FAN CURRENT SENSE, K10598 1 1 119BL, MAIN EQUIP CTR, P37
SENSOR - (FIM 21-40-00/101 RELAY - (FIM 31-01-70/101) RELAY - (FIM 31-01-37/101) RELAY - (FIM 31-01-36/101) AIR/GND SYS 1, K145 FWD CARGO FAN, K10057 AFT CARGO FAN, K10084 AFT CARGO HTR, K10083 ON DROP OUT T/D, K10164 AIR/GND SYS 2, K205 FWD CARGO FAN CURRENT SENSE, K105971 1 119BL, MAIN EQUIP CTR, P70
AFT CARGO FAN CURRENT, TS5044 2 1 119BL, MAIN EQUIP CTR, P37 21-44-09
SWITCH - AFT CARGO TEMPERATURE THERMAL FWD CARGO FAN CURRENT, TS50182 1 1 119BL, MAIN EQUIP CTR, P70 822, AFT CARGO COMPT 21-43-07 21-44-07
SWITCH - FWD CARGO TEMPERATURE THERMAL 1 821, FWD CARGO COMPT 21-43-05
SWITCH/LIGHT - AFT CARGO, YQPS2 1 FLT COMPT, P8, APU/CARGO FIRE M10444 *
SWITCH/LIGHT - FWD CARGO, YQPS1 1 FLT COMPT, P8, APU/CARGO FIRE M10444 *
* SEE THE WDM EQUIPMENT LIST
NOT ON ALL AIRPLANES - ALTERNATE TO CARGO FAN CURRENT SENSOR NOT ON ALL AIRPLANES - ALTERNATE TO CARGO FAN CURRENT SENSE RELAY
Heating - Component Index
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