* SEE THE WDM EQUIPMENT LIST
Temperature Control System - Component Index
1 
Figure 101 (Sheet 1) 
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 
747-400 FAULT ISOLATION/MAINT MANUAL 
COMPONENT  FIG. 102 SHT  QTY  ACCESS/AREA  REFERENCE AMM  
SENSOR - ZONE TEMPERATURE 
 AFT MAIN DECK 1,2, T1930,T1931 4  1  AREA ABOVE MAIN DECK CEILING, AFT  21-61-03  
BULK CARGO COMPARTMENT, T1738 4  1  BULK CARGO COMPARTMENT, LEFT  21-61-05  
CREW REST AREA, T1938 3  1  AREA ABOVE CREW REST AREA CEILING  21-61-03  
FLIGHT DECK, T1617 3  1  FLIGHT COMPARTMENT, LEFT  21-61-03  
FORWARD MAIN DECK 1,2, T1924,T1925  4  1  AREA ABOVE MAIN DECK CEILING,  21-61-03  
FORWARD  
LOWER AFT CARGO, T1628 4  1  AFT CARGO COMPARTMENT, RIGHT  21-61-05  
LOWER FORWARD CARGO, T1627  4 1 FORWARD CARGO COMPARTMENT, LEFT  21-61-05  
UPPER DECK, T1618 4  1  UPPER DECK, RIGHT  21-61-03  
SWITCH - AFT LOWER LOBE TEMP SELECT, S2273  2  1  FLT COMPT, P5 PNL  * 
SWITCH - AFT MAIN DECK TEMP SELECT, S2280  2  1  FLT COMPT, P5 PNL  * 
SWITCH - FLIGHT DECK TEMP SELECT, S1737  2  1  FLT COMPT, P5 PNL  * 
SWITCH - FWD LOWER LOBE TEMP SELECT, S2272  2  1  FLT COMPT, P5 PNL  * 
SWITCH - FWD MAIN DECK TEMP SELECT, S2278  2  1  FLT COMPT, P5 PNL  *  
SWITCH - LOWER LOBE CARGO CONDITIONED AIR 2  1  FLT COMPT, P461  * 
 FLOW RATE SELECTOR, S2271  
SWITCH - RAM AIR EXIT DOOR LIMIT  
PACK 1, S572 9  1  191EL, AIR CONDITIONING ACCESS 21-62-12  
PANEL  
PACK 2, S573 9  1  191ML, AIR CONDITIONING ACCESS 21-62-12  
PANEL  
PACK 3, S574  9  1  192ER, AIR CONDITIONING ACCESS  21-62-12  
PANEL  
SWITCH - ZONE DUCT OVERTEMPERATURE 
 AFT MAIN DECK, S2281 6  1  AREA ABOVE MAIN DECK CEILING, AFT  21-61-07  
CREW REST AREA, S2282 6  1  AREA BEHIND CREW REST AREA  21-61-07 
 FLIGHT DECK, S1894 6  1 AREA BEHIND CREW REST AREA  21-61-07  
FORWARD MAIN DECK, S2279  6  1  AREA ABOVE MAIN DECK CEILING,  21-61-07  
FORWARD  
LOWER AFT CARGO, S1905 6  1  BODY LDG GEAR WELL, RIGHT 21-61-07  
LOWER FORWARD CARGO, S1904 6  1  192BR, AIR COND ACCESS PANEL  21-61-07  
UPPER DECK, S1895  6  1  AREA BEHIND CREW REST AREA  21-61-07  
SWITCH/LIGHT - ZONE RST, S4  2  1 FLT COMPT, P5, CABIN TEMP MODULE,  * 
 M7329  
SWITCH/LIGHT - TRIM AIR, S5  2  1  FLT COMPT, P5, CABIN TEMP  *  
MODULE, M7329  
VALVE - ACM TURBINE BYPASS 
 PACK 1, V102 9  1  191AL, AIR CONDITIONING ACCESS 21-62-01  
DOOR  
PACK 2, V103 9  1  191HL, AIR CONDITIONING ACCESS 21-62-01  
DOOR  
PACK 3, V104  9  1  192AR, AIR CONDITIONING ACCESS 21-62-01  
DOOR  
VALVE - MASTER TRIM AIR SHUTOFF, V110  7  1  191ML, AIR CONDITIONING ACCESS 21-61-08  
PANEL  
VALVE - TRIM AIR MODULATING 
 AFT MAIN DECK 1,2, V551,V552  7  1 WING LANDING GEAR WELL, RIGHT, 21-61-10  
LEFT  
CREW REST AREA, V554 5  1  AREA BEHIND CREW REST AREA 21-61-10  
FLIGHT DECK, V450 5  1  AREA BEHIND CREW REST AREA  21-61-10  
FORWARD MAIN DECK, V550 7  1  WING LANDING GEAR WELL, RIGHT  21-61-10  
LOWER AFT CARGO, V461 7  1  BODY LANDING GEAR WELL, RIGHT  21-61-10  
LOWER FORWARD CARGO, V460 5  1  192BR, AIR COND ACCESS PANEL  21-61-10  
UPPER DECK, V451  5  1  AREA BEHIND CREW REST AREA  21-61-10 
Temperature Control System - Component Index 
Figure 101 (Sheet 2)
 
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