Boeing 737 Circuit Breakers

Within the aircraft’s electrical system, individual electrical circuits are protected by their own fuse, usually called a “circuit breaker”. These circuit breakers serve as a protective measure, connected to various electrical components throughout the aircraft.

In a B737 MAX, you may find more than 600 circuit breakers. Most of the circuit breakers inside the cockpit of a Boeing 737 are on the walls behind the captain’s and first officer’s seats.

When a circuit breaker trips, it displays a distinctive white band, facilitating quick identification by maintenance personnel or flight crew. This feature helps in quickly addressing and rectifying electrical issues to ensure aircraft safety and operational efficiency.

737 Circuit Breaker Panels

B737 airplane circuit breakers are located on the following panels. These panels and modules contain thermal circuit breakers.

P6 F/O Electrical System Panel
- P6-1 NAV, INST & COMM
- P6-2 SYSTEMS
- P6-3 FUEL SYSTEM, LIGHTING & LANDING GEAR
- P6-4 AIR COND & ELECTRICAL
- P6-5 WINDOW HEAT
P18 CAPT Electrical System Panel
- P18-1 NAV
- P18-2 INST & COMM
- P18-3 ANTI-ICE & LIGHTING
P91 Power Distribution Panel Number 1 (EE)
P92 Power Distribution Panel Number 2 (EE)
J9 Panel (EE)
J11 Panel (E6)
M01720 Standby Power Control Unit (P6)

Most airplane system load circuit breakers are located in the P6 and P18 panels in the flight compartment. Circuit breakers are arranged by airplane systems. The P6 panel is behind the first officer and the P18 panel is behind the caption seat.

737 Circuit Breaker List

The complete list of Boeing 737 thermal circuit breakers is categorized by ATA chapter and sorted in alphabetical order.

Reference Aircraft: Boeing 737 MAX (737-8)

21 AIR CONDITIONING CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
21	A/C OVERBOARD EXH VALVE RECONFIG CONT	P6-4	D2	C01445
21	A/C OVERBOARD EXHAUST VALVE CONT	P6-4	D1	C01444
21	A/C PACK/ENGINE BLEED AIR OVHT LEFT	P6-4	C8	C01176
21	A/C PACK/ENGINE BLEED AIR OVHT RIGHT	P6-4	C7	C01177
21	A/C RECIRC FAN LEFT CABIN AIR	P18-3	E7	C00911
21	A/C RECIRC FAN LEFT CONT	P18-3	E9	C01156
21	A/C RECIRC FAN RIGHT CONT.	P6-4	E2	C01023
21	A/C TEMP CONT VALVE CLOSE LEFT	P6-4	A1	C01157
21	A/C TEMP CONT VALVE CLOSE RIGHT	P6-4	B1	C01160
21	A/C ZONE TEMP DUCT OVHT AFT PASS	P6-4	C2	C01169
21	A/C ZONE TEMP DUCT OVHT FLT DECK	P6-4	C4	C01164
21	A/C ZONE TEMP DUCT OVHT FWD PASS	P6-4	C3	C01166
21	A/C ZONE TEMP VALVE/FAN CONT AFT PASS	P6-4	A3	C01170
21	A/C ZONE TEMP VALVE/FAN CONT FLT DECK	P6-4	B3	C01163
21	A/C ZONE TEMP VALVE/FAN CONT FWD PASS	P6-4	B2	C01167
21	AC RECIRC RIGHT FAN CABIN AIR	P6-4	E4	C00884
21	AIR COND PACK CONT VALVES LALT	P6-4	D3	C01613
21	AIR COND PACK CONT VALVES R ALT	P6-4	D4	C01614
21	AIR CONDITIONING DOOR AREA HEAT CONT	P18-3	E11	C01274
21	AIR CONDITIONING MISC LOADS LEFT	P6-4	A8	C00555
21	AIR CONDITIONING MISC LOADS RIGHT	P6-4	B8	C01178
21	AIR CONDITIONING PACK CONT RIGHT AC	P6-4	B11	C01162
21	AIR CONDITIONING PACK CONT RIGHT DC	P6-4	B9	C01161
21	AIR CONDITIONING PACK CONT VALVES L	P6-4	C6	C00262
21	AIR CONDITIONING PACK CONT VALVES R	P6-4	C5	C00263
21	AIR CONDITIONING PACK CONTROL LEFT AC	P6-4	A11	C01159
21	AIR CONDITIONING PACK CONTROL LEFT DC	P6-4	A9	C01158
21	AIR CONDITIONING RAM AIR MOD LEFT	P6-4	A4	C01950
21	AIR CONDITIONING RAM AIR MOD RIGHT	P6-4	B4	C01951
21	AIR CONDITIONING TEMP IND	P6-4	D8	C00076
21	AIR CONDITIONING TRIM AIR PRESS	P6-4	D9	C01172
21	DOOR AREA HTR-AFT	P91	D7	C01279
21	DOOR AREA HTR-FWD	P91	D9	C01280
21	EQPT CLG EXH FAN PWR-ALTN	P92	D12	C00837
21	EQPT CLG EXH FAN PWR-NORM	P91	E1	C00836
21	EQPT CLG SPLY FAN PWR-ALTN	P91	A8	C00935
21	EQPT CLG SPLY FAN PWR-NORM	P92	D10	C00934
21	EQPT COOLING EXHAUST FAN CONT ALTN	P6-4	C15	C01436
21	EQPT COOLING EXHAUST FAN CONT NORMAL	P6-4	C14	C01435
21	EQPT COOLING LOW FLOW DETECT EXHAUST	P18-3	A18	C01434
21	EQPT COOLING LOW FLOW DETECT SUPPLY	P18-3	A17	C01433
21	EQPT COOLING SUPPLY FAN CONT-NORMAL	P6-4	C12	C01116
21	EQPT COOLING SUPPLY FAN CONTROL-ALTN	P6-4	C13	C01117
21	EQUIPMENT COOLING E6 RACK FAN CONTROL	P6-5	D10	C04070
21	EQUIPMENT COOLING E6 RACK FAN POWER	P6-5	D8	C04069
21	PRESSURIZATION CONTROLAUTO 1	P6-4	F3	C01270
21	PRESSURIZATION CONTROLAUTO 2	P6-4	F5	C01271
21	PRESSURIZATION CONTROL IND	P6-4	F7	C01272
21	PRESSURIZATION CONTROL LCD LTG	P6-4	F1	C01273
21	PRESSURIZATION CONTROL MANUAL	P6-4	F6	C01269

22 AUTOFLIGHT CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
22	AFCS INTLK 2	P6-2	A3	C01631
22	AFCS MCP DC 1	P18-1	D5	C01044
22	AFCS MCP DC 2	P6-2	C3	C01047
22	AFCS SYS A ENGAGE INTLK	P18-1	D3	C01048
22	AFCS SYS A FCC DC	P18-1	D2	C01045
22	AFCS SYS A MACH TRIM AC	P18-1	C4	C00456
22	AFCS SYS A MACH TRIM DC	P18-1	D4	C00457
22	AFCS SYS A SNSR EXC AC	P18-1	C5	C01041
22	AFCS SYS A WARN LIGHT (BAT)	P18-1	D1	C01049
22	AFCS SYS B ENGAGE INTLK	P6-2	B4	C00716
22	AFCS SYS B FCC DC	P6-2	B3	C01046
22	AFCS SYS B MACH TRIM AC	P6-2	C1	C01037
22	AFCS SYS B MACH TRIM DC	P6-2	B2	C01064
22	AFCS SYS B SNSR EXC AC	P6-2	C2	C01042
22	AFCS SYS B WARN LIGHT (BAT)	P6-2	B1	C00374
22	AUTOTHROTTLE DC 1	P18-1	E1	C00721
22	YAW DAMPER 1 DC	P18-1	D7	C00286
22	YAW DAMPER 2 DC	P18-1	D6	C01354
22	YAW DAMPER AC	P18-1	C7	C00285

23 COMMUNICATIONS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
23	ATTENDANT PANELS	P6-1	D12	C01936
23	AUDIO CAPT	P6-2	D23	C00083
23	AUDIO F/O	P6-2	D22	C00086
23	AUDIO OBS	P6-2	D24	C00085
23	CMU 1 AC	P6-1	E8	C01483
23	CMU/ACARS DC	P6-1	E9	C01500
23	CMU/ACARS DC (INOP)	P6-1	E9	C01500
23	COMMUNICATIONS HF 1	P18-2	E11	C00839
23	COMMUNICATIONS HF 2	P6-1	D2	C00857
23	COMMUNICATIONS HF 2 (INOP)	P6-1	D2	C00857
23	COMMUNICATIONS PAAMPL BAT	P6-1	D4	C00082
23	COMMUNICATIONS SELCAL	P18-2	D15	C00058
23	COMMUNICATIONS VHF 1	P18-2	D11	C00165
23	COMMUNICATIONS VHF 2	P6-1	C3	C00166
23	COMMUNICATIONS VHF 3	P18-2	D12	C00471
23	ELT (INOP)	P6-3	C1	C04118
23	ELT INTERFACE UNIT	P6-3	C1	C01495
23	ENTERTAINMENT PA SYS BAT	P6-1	C6	C01583
23	ENTERTAINMENT PA TAPE RPDR AC	P6-1	C9	C00080
23	GADSS ATU (INOP)	P6-3	A1	C04117
23	INTERPHONE POWER CAPT BAT	P6-2	C24	C00240
23	INTERPHONE POWER CAPT DC 2	P6-2	C23	C00239
23	INTERPHONE POWER F/O BAT	P6-2	C22	C00561
23	INTERPHONE POWER F/O DC 2	P6-2	C21	C00560
23	INTPH AND WARN	P6-2	D21	C00084
23	PASSENGER CABIN CREW CALL	P18-3	A9	C00073
23	SATCOM AURAL WARN	P18-2	E15	C01422
23	SATCOM HIGH	P6-5	C19	C04088
23	SATCOM SDU	P6-5	C18	C04087
23	SATCOM SDU (INOP)	P18-2	E13	C04060
23	SURVEILLANCE CAMERA	P6-5	B1	C01641
23	VOICE RCDR	P18-2	D7	C00107
23	VOICE RCDR (INOP)	P18-2	D7	C00107
23	VOICE RCDR RELAY	P18-2	C7	C01537
23	VOICE RCDR/RIPS	P18-2	D6	C01948

24 ELECTRICAL POWER CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
24	28V AC GND SERV 1	P91	E12	C00041
24	28V AC GND SERV 2	P92	E6	C00040
24	28V AC XFR BUS 1	P91	B10	C02044
24	28V AC XFR BUS 1 SECT 2	P18-3	C5	C02046
24	28V AC XFR BUS 2	P92	B10	C02045
24	AC APU GEN IND	P91	B11	C00015
24	AC BUS 28V AC XFR BUS 2 SECT 2	P6-4	D14	C02043
24	AC BUS AC STBY BUS PWR	P6-4	D18	C02029
24	AC BUS STBY BUS 115V AC IND	P6-4	D16	C00072
24	AC BUS STBY BUS 28V AC DISTR	P6-4	D15	C02047
24	AC BUS XFR BUS 2 115V AC IND	P6-4	D13	C01467
24	AC GEN 1 IND	P91	B12	C00014
24	AC GEN 2 IND	P92	B12	C00016
24	APU GEN CONT UNIT	P92	C9	C01326
24	AUX BAT CHARGER	J9	A3	C01209
24	AUX BAT CHGR	P91	E3	C00922
24	AUX BAT DC VOLTMETER	J9	A2	C01210
24	AUXILIARY POWER BREAKER	P91	——	C00803
24	BAT BUS SECT 1	M01720	C4	C03061
24	BAT BUS SECT 2	M01720	C5	C03062
24	BAT BUS SECT 3	M01720	A1	C03063
24	BAT CHGR	P92	E1	C00809
24	BAT SW ON ALARM	P6-4	B12	C01940
24	BAT/STBY SW POS IND	M01720	B5	C01426
24	BATTERY BUS	J9	A5	C01340
24	BATTERY CHARGER	J9	A4	C00142
24	BUS PWR CONT UNIT	P91	C10	C01327
24	BUS TIE BREAKER 1	P91	——	C00804
24	BUS TIE BREAKER 2	P92	——	C00805
24	CABIN UTIL RLY PWR	P6-5	B17	C01627
24	DC BUS 1 SECT 1	P91	A2	C03051
24	DC BUS 1 SECT 2	P91	C12	C03052
24	DC BUS 1 XFR	P91	A1	C01065
24	DC BUS 2 SECT 1	P92	C12	C03071
24	DC BUS 2 SECT 2	P92	A2	C03072
24	DC BUS 2 XFR	P92	A1	C01066
24	DC BUS INDICATION BAT	P6-4	F14	C00026
24	DC BUS INDICATION BUS 1	P6-4	F16	C00023
24	DC BUS INDICATION BUS 2	P6-4	F18	C01338
24	DC BUS INDICATION HOT BAT	P6-4	E15	C00134
24	DC BUS INDICATION STBY	P6-4	E18	C00136
24	DC BUS INDICATION SW HOT BAT	P6-4	E16	C01466
24	DUAL BAT RCCB REMOTE	M01720	A4	C01459
24	DUAL BATTERY RCCB	J9	——	C01212
24	ELECTRICAL GND SERV CONT	P6-4	E13	C01328
24	ELECTRICAL GND SERV DC 1	P6-4	D11	C03064
24	ELECTRICAL GND SERV DC HOT BAT	P6-4	E12	C03065
24	ELECTRICAL TR3 XFR RELAY CONT	P6-4	E11	C01397
24	EXT PWR 1	P92	A18	C00812
24	EXT PWR 2	P92	A15	C02812
24	EXT PWR BPCU	P92	A12	C00936
24	EXTERNAL POWER CONTACTOR	P92	——	C00937
24	EXTERNAL POWER CONTACTOR	P92	——	C00937
24	GEN 1 LOAD SHED	P91	C7	C01288
24	GEN 2 LOAD SHED	P92	C7	C01289
24	GENERATOR APU GEN CONT UNIT	P6-4	F12	C01285
24	GENERATOR BREAKER 1	P91	——	C00801
24	GENERATOR BREAKER 2	P92	——	C00802
24	GENERATOR BUS PWR CONT UNIT	P6-4	F13	C01290
24	GENERATOR CONT UNIT 1	P6-4	F10	C01283
24	GENERATOR CONT UNIT 2	P6-4	F11	C01284
24	GENERATOR DISC 1	P6-4	F8	C01286
24	GENERATOR DISC 2	P6-4	F9	C01287
24	GND SERV 1	P91	A14	C00813
24	GND SERV 1 SECT 1	P91	E5	C03041
24	GND SERV 2	P92	A9	C02813
24	HOT BAT BUS	M01720	B3	C02022
24	INVERTER REMOTE	M01720	A5	C01343
24	INVERTER VOLTS	M01720	A2	C01053
24	MAIN BUS 1	P91	F6	C00815
24	MAIN BUS 2	P92	F6	C00817
24	SPCU NORMAL	M01720	B1	C01410
24	SPCU STANDBY	M01720	B2	C01411
24	STATIC INVERTER RCCB	J9	——	C01341
24	STBY BUS SECT 1	M01720	C1	C03066
24	STBY BUS SECT 2	M01720	C2	C03067
24	SW HOT BAT BUS	M01720	B4	C00169
24	TR3-DC IND	M01720	C3	C00025
24	TRU 1	P91	A6	C00806
24	TRU 2	P92	A4	C00807
24	TRU 3	P92	A6	C00808
24	TRU 3 ALTN	P91	A4	C00941
24	XFR BUS 1 IFE	P91	F1	C03003
24	XFR BUS 1 SECT 1	P91	F4	C03001
24	XFR BUS 1 SECT 2	P91	F5	C03002
24	XFR BUS 2 IFE	P92	F1	C03013
24	XFR BUS 2 SECT 1	P92	F4	C03011
24	XFR BUS 2 SECT 2	P92	F5	C03012

25 EQUIPMENT/FURNISHINGS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
25	28V DC SERVICE OUTLETS	P6-3	F1	C00117
25	EMERGENCY EVAC SIGNAL	P6-3	C2	C01091
25	FD – PC POWER	P6-5	A3	C01643
25	GALLEY BUS A	P92	F7	C00912
25	GALLEY BUS B	P92	F8	C00914
25	GALLEY BUS C	P91	F7	C00913
25	GALLEY BUS D	P91	F8	C00915
25	PAX SEAT – LEFT	P6-5	B14	C01977
25	PAX SEAT – RIGHT	P6-5	B5	C01976
25	PC POWER 1	P6-5	A5	C01602
25	PC POWER 2	P6-5	A8	C01603
25	PC POWER CONTROL	P6-3	B2	C01605
25	SERVICE OUTLETS	P92	E7	C00116
25	VAC OUTLET AFT	P92	E9	C00119
25	VAC OUTLET FWD	P92	E8	C00118

26 FIRE PROTECTION CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
26	CARGO FIRE AFT DET A	P18-3	C19	C01524
26	CARGO FIRE AFT DET B	P18-3	C18	C01525
26	CARGO FIRE EXT 1	P18-3	B17	C01526
26	CARGO FIRE EXT 2	P18-3	B16	C01528
26	CARGO FIRE FWD DET A	P18-3	C17	C01522
26	CARGO FIRE FWD DET B	P18-3	C16	C01523
26	EQPT COOL SMOKE DET EXHAUST	P18-3	E13	C04013
26	EQPT COOL SMOKE DET SUPPLY	P6-5	A11	C04014
26	FIRE PROT DETECTION MA WRN & CONT	P6-2	A21	C00396
26	FIRE PROTECTION DET OVHT WW WING BODY	P6-2	A19	C00388
26	FIRE PROTECTION DETECTION APU	P6-2	A23	C00403
26	FIRE PROTECTION DETECTION ENG 1	P6-2	A24	C00405
26	FIRE PROTECTION DETECTION ENG 2	P6-2	A22	C00407
26	FIRE PROTECTION EXTINGUISHERS ALTN L	P6-2	B24	C01021
26	FIRE PROTECTION EXTINGUISHERS ALTN R	P6-2	B23	C01022
26	FIRE PROTECTION EXTINGUISHERS APU	P6-2	B21	C00452
26	FIRE PROTECTION EXTINGUISHERS LEFT	P6-2	B22	C00296
26	FIRE PROTECTION EXTINGUISHERS RIGHT	P6-2	B20	C00297
26	LAVATORY SMOKE	P18-3	E12	C01125

27 FLIGHT CONTROLS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
27	ELEVATOR FEEL LIMIT	P6-2	C10	C01676
27	FC TE FLAP POS/SKEW SNSR & IND LEFT	P6-2	A12	C00213
27	FC TE FLAP POS/SKEW SNSR & IND RIGHT	P6-2	A11	C01443
27	FLIGHT CONT RUDDER AUTHORITY LIMITER	P6-2	C9	C01447
27	FLIGHT CONT SHUTOFF VALVES FLT CONT	P6-2	B13	C00363
27	FLIGHT CONT SHUTOFF VALVES FLT CONT	P6-2	C13	C01074
27	FLIGHT CONT SHUTOFF VALVES STBY RUD	P6-2	C11	C00362
27	FLIGHT CONTROLALTN T.E. FLAP DRIVE	P6-2	D13	C00841
27	FLIGHT CONTROLAUTO SPEED BRAKE	P6-2	B9	C00440
27	FLIGHT CONTROLAUTOSLAT DC 1	P6-2	C14	C01068
27	FLIGHT CONTROLAUTOSLAT DC 2	P6-2	B14	C01070
27	FLIGHT CONTROL ELEV TAB VLV RIGHT	P6-2	B8	C01464
27	FLIGHT CONTROL FLAP LOAD RELIEF	P6-2	A6	C00566
27	FLIGHT CONTROL FLAP SHUTOFF VALVES	P6-2	A7	C00210
27	FLIGHT CONTROL FSEU DC 1	P6-2	A8	C00211
27	FLIGHT CONTROL FSEU DC 2	P6-2	A9	C01468
27	FLIGHT CONTROL SHUTOFF VALVES SPOILER	P6-2	B12	C00204
27	FLIGHT CONTROL STAB TRIM ACTUATOR	P6-2	D10	C00840
27	FLIGHT CONTROL STAB TRIM CONT	P6-2	B10	C00207
27	FLIGHT CONTROL TRIM CONT AIL	P6-2	D18	C00786
27	FLIGHT CONTROL TRIM CONT RUD	P6-2	D19	C00787
27	FLIGHT CONTROL TRIM IND RUD	P6-2	D16	C00788
27	FORCE FIGHT MONITOR	P6-2	D15	C01628
27	GROUND SPOILER CONTROL	P6-2	B11	C04040
27	SMYD-1 CMPTR DC	P18-2	E5	C01204
27	SMYD-1 SNSR EXC AC	P18-2	E6	C01205
27	SMYD-2 CMPTR DC	P6-1	B5	C01206
27	SMYD-2 SNSR EXC AC	P6-1	B4	C01207
27	SPOILER CONTROL ELEC PWR A	P6-5	C10	C04032
27	SPOILER CONTROL ELEC PWR B	P6-5	C12	C04033
27	STALL WARN ASYM MODE	P18-2	E7	C01208
27	STICK SHAKER LEFT	P18-2	E4	C01392
27	STICK SHAKER RIGHT	P6-1	B6	C01393

28 FUEL CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
28	AT S-O/UCPO BST PMP CTR TNK LAC	P6-3	D7	C01659
28	BOOST PMP CTR TNK LAUTO SHUT OFF-DC	P6-3	C3	C01637
28	BOOST PMP CTR TNK R AUTO SHUT OFF-DC	P6-3	C7	C01638
28	FUELAT S-O/UCPO BST PMP CTR TNK R AC	P6-3	E7	C01658
28	FUEL BOOST PUMP CTR TANK LEFT	P91	D5	C00845
28	FUEL BOOST PUMP CTR TANK RIGHT	P92	D5	C00846
28	FUEL BOOST PUMP TANK 1 AFT	P92	D1	C00826
28	FUEL BOOST PUMP TANK 1 FWD	P91	D1	C00827
28	FUEL BOOST PUMP TANK 2 AFT	P91	D3	C00828
28	FUEL BOOST PUMP TANK 2 FWD	P92	D3	C00829
28	FUEL CROSS FEED VALVE CONT	P6-3	B7	C00361
28	FUEL CROSS FEED VALVE IND	P6-3	B6	C04005
28	FUEL FUELING CONT	P6-3	A3	C00032
28	FUEL FUELING IND	P6-3	A4	C01441
28	FUEL QTY 1	P6-3	A6	C00397
28	FUEL QTY 2	P6-3	A5	C00398
28	FUEL SHUTOFF VALVES BUS	P6-3	C6	C01472
28	FUEL SHUTOFF VALVES PWR PACK	P6-3	C4	C01471
28	FUEL SPAR VALVE ENG 1	P6-3	B4	C00359
28	FUEL SPAR VALVE ENG 2	P6-3	B3	C00360
28	FUEL SPAR VALVE IND	P6-3	B5	C00540
28	FUEL TEMP IND	P6-3	A7	C00355

29 HYDRAULIC POWER CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
29	ELEC HYD PUMP CONTROL SYS A	P92	C8	C00767
29	ELEC HYD PUMP CONTROL SYS B	P91	C8	C00768
29	ELEC HYD PUMP SYS A	P92	F3	C00881
29	ELEC HYD PUMP SYS B	P91	F3	C00882
29	HYD SYS ENG PUMP DEPRESS VALVE 1	P6-2	B15	C04000
29	HYD SYS ENG PUMP DEPRESS VALVE 2	P6-2	A17	C04001
29	HYD SYS LDG GR SYS XFR VALVE PRI	P6-2	C16	C00781
29	HYD SYS LDG GR SYS XFR VALVE SEC	P6-2	C15	C00799
29	HYDRAULIC SYSTEM BRAKE PRESS IND	P6-2	A13	C00306
29	HYDRAULIC SYSTEM PTU VALVE CONT 1	P6-2	A15	C01081
29	HYDRAULIC SYSTEM PTU VALVE CONT 2	P6-2	A16	C01085
29	HYDRAULIC SYSTEM SHUTOFF VALVE ENG 1	P6-2	C19	C00347
29	HYDRAULIC SYSTEM SHUTOFF VALVE ENG 2	P6-2	C18	C00348
29	STANDBY HYDRAULIC PUMP	P92	F2	C01449

30 ICE AND RAIN PROTECTION CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
30	ANTI-ICE & RAIN ENG 1 & WING CONT	P18-3	A6	C00148
30	ANTI-ICE & RAIN ENG 1 COWLAI VALVE	P18-3	A7	C01001
30	ANTI-ICE & RAIN ENG 2 COWLAI VALVE	P18-3	B7	C01002
30	ANTI-ICE & RAIN ENGINE 2 CONTROL	P6-5	D11	C04082
30	ANTI-ICE & RAIN WING ANTI-ICE VALVE	P18-3	A1	C04012
30	ANTI-ICE & RAIN WING ANTI-ICE VALVE-L	P18-3	B2	C04063
30	ANTI-ICE & RAIN WING ANTI-ICE VALVE-R	P18-3	B4	C04064
30	ANTI-ICE & RAIN WSHLD WIPER LEFT	P18-3	B3	C00054
30	ANTI-ICE & RAIN WSHLD WIPER RIGHT	P18-3	B1	C00055
30	HEATERS ALPHA VANE LEFT	P18-3	C3	C01072
30	HEATERS ALPHA VANE RIGHT	P18-3	D3	C01071
30	HEATERS AUX PITOT	P18-3	D6	C00524
30	HEATERS CAPT PITOT	P18-3	C1	C00523
30	HEATERS DRAIN	P18-3	E5	C00233
30	HEATERS DRAIN MAST AIR	P18-3	E4	C00700
30	HEATERS DRAIN MAST GND	P18-3	E3	C00234
30	HEATERS ELEV PITOT LEFT	P18-3	C4	C00236
30	HEATERS ELEV PITOT RIGHT	P18-3	D4	C00237
30	HEATERS F/O PITOT	P18-3	D5	C00525
30	HEATERS TEMP PROBE	P18-3	C2	C00238
30	HOSE HEATERS	P18-3	E18	C01473
30	PROBE AUTO HEAT CAPT	P18-3	D8	C01946
30	PROBE AUTO HEAT F/O	P18-3	D9	C01947
30	PROBE INDICATION CAPT	P6-3	F18	C00569
30	PROBE INDICATION F/O	P6-3	F16	C00570
30	WASTE/WTR LINE HEATERS	P18-3	D18	C01463
30	WINDOW HEAT POWER LEFT FRONT	P6-5	B21	C00228
30	WINDOW HEAT POWER LEFT SIDE	P6-5	B9	C00392
30	WINDOW HEAT POWER RIGHT FRONT	P6-5	B8	C00394
30	WINDOW HEAT POWER RIGHT SIDE	P6-5	B20	C00393

31 INDICATING/RECORDING CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
31	DATA LOADER (INOP)	P18-2	A9	C00923
31	DISPLAY DPC 1 HOLDUP	P6-1	D10	C04022
31	DISPLAY DPC 1 PRI	P18-2	D5	C04023
31	DISPLAY DPC 2 HOLDUP	P6-1	D9	C04024
31	DISPLAY DPC 2 PRI	P6-1	D11	C04025
31	DISPLAY LEFT INBOARD	P18-2	D3	C04026
31	DISPLAY LEFT OUTBOARD	P18-2	D4	C04027
31	DISPLAY RIGHT INBOARD	P6-1	E11	C04028
31	DISPLAY RIGHT OUTBOARD	P6-1	E10	C04029
31	DSP CAPT EFIS CONT PNL	P18-2	D1	C04030
31	DSP F/O EFIS CONT PNL	P6-1	E13	C04031
31	FLIGHT RECORDER AC	P18-2	C9	C00109
31	FLIGHT RECORDER DC	P18-2	C10	C00468
31	FLIGHT RECORDER POSITION SENSOR	P18-2	C8	C00544
31	LANDING GEAR AURAL WARN	P6-3	D18	C00451
31	MAINT/BITE PANEL	P6-1	E12	C04002
31	MASTER CAUTION ANNUNCIATOR BAT	P6-3	B13	C00131
31	MASTER CAUTION ANNUNCIATOR BUS 1	P6-3	B12	C00132
31	MASTER CAUTION ANNUNCIATOR CONT 1	P6-3	C11	C01275
31	MASTER CAUTION ANNUNCIATOR CONT 2	P6-3	C12	C01276
31	MASTER CAUTION ANNUNCIATOR CONT 3	P6-3	C13	C01277
31	MASTER CAUTION ANNUNCIATOR CONT 4	P6-3	C14	C01278
31	MULTI FUNCTION PANEL	P18-2	D2	C04003
31	PRINTER	P6-1	E5	C01216

32 LANDING GEAR CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
32	LANDING GEAR AIR/GND RELAY	P6-3	D15	C01401
32	LANDING GEAR AIR/GND SYS 1	P6-3	C16	C01356
32	LANDING GEAR AIR/GND SYS 2	P6-3	C15	C01355
32	LANDING GEAR ALTN EXTEND SOL	P6-3	D16	C01432
32	LANDING GEAR ANTISKID INBD	P6-3	E16	C00196
32	LANDING GEAR ANTISKID OUTBD	P6-3	E18	C00195
32	LANDING GEAR AUTOBRAKE BITE CONT 1	P6-3	A18	C00583
32	LANDING GEAR AUTOBRAKE BITE CONT 2	P6-3	A16	C01345
32	LANDING GEAR BRAKE TEMP MONITOR	P6-3	E15	C01094
32	LANDING GEAR CONTROL 1	P6-5	D18	C04020
32	LANDING GEAR CONTROL 2	P6-5	D19	C04021
32	LANDING GEAR LATCH & PRESS WARN	P6-3	B17	C00129
32	LANDING GEAR NOSE GEAR STEER	P6-3	D17	C01027
32	LANDING GEAR PARKING BRAKE	P6-3	B16	C01346
32	PSEU ALTN	P6-3	D2	C01400
32	PSEU PRI	P6-3	D1	C01399
32	TIRE PRESSURE INDICATION	P6-5	D21	C04034

33 LIGHTS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
33	ACCESS COMPT LT	P91	C5	C00389
33	AIR COND COMPT LT	P92	C3	C00126
33	ANTI COLLISION LIGHT-TAIL CONE- WHITE	P18-3	C12	C04053
33	ANTI COLLISION LIGHTS-WINGLET-WHITE	P18-3	C13	C04054
33	BRT ENTRY LTS (INOP)	P91	E11	C00413
33	CABIN EMER LIGHTS	P6-5	B18	C01949
33	CARGO COMPT LT-AFT	P92	C5	C00128
33	CARGO COMPT LT-FWD	P92	C4	C00127
33	CARGO LT CONT	P92	C10	C01419
33	CEILING LIGHT AFT-L	P91	E7	C01937
33	CEILING LIGHT AFT-R	P91	E8	C01938
33	CEILING LT-L	P91	E10	C00591
33	CEILING LT-R	P91	E9	C00590
33	CONT CABIN LIGHTING PANEL FLOOD CONT	P6-3	A11	C00751
33	CONT CABIN LIGHTING PANEL FLOOD STBY	P6-3	A12	C01425
33	CONTROL CABIN LIGHTING CONT STAND	P6-3	A8	C00283
33	CONTROL CABIN LIGHTING DOME WHITE	P6-3	A15	C00282
33	CONTROL CABIN LIGHTING MAP & KIT	P6-3	A9	C00308
33	CONTROL CABIN LIGHTING OBS READING	P6-3	A10	C00309
33	CONTROL CABIN LIGHTING STBY COMPASS	P6-3	A14	C00161
33	COVE LIGHT	P92	E5	C01939
33	COVE LIGHT (INOP)	P92	E5	C01939
33	ELEC RACK LT-FWD	P91	C2	C00139
33	ELEX PANEL LIGHTING, SECTION 1	P6-5	F1	C04044
33	ELEX PANEL LIGHTING, SECTION 2	P6-5	F2	C04045
33	ELEX PANEL LIGHTING, SECTION 3	P6-5	F3	C04046
33	ELEX PANEL LIGHTING, SECTION 4	P6-5	F4	C04047
33	ELEX PANEL LIGHTING, SECTION 5	P6-5	F5	C04048
33	EMER PANEL LTG	P6-3	D8	C00701
33	ENTRY LIGHTS DIM	P6-4	E9	C00155
33	EXTERIOR LIGHTING ANTI COLLISION RED	P18-3	B12	C00111
33	EXTERIOR LIGHTING GENERAL LIGHT CONT	P18-3	D12	C01518
33	EXTERIOR LIGHTING LOGO ILLUM	P18-3	A15	C00644
33	EXTERIOR LIGHTING LTRTL – LEFT	P18-3	B15	C01969
33	EXTERIOR LIGHTING LTRTL – RIGHT	P18-3	B14	C01968
33	EXTERIOR LIGHTING POSITION LEFT	P18-3	A13	C04051
33	EXTERIOR LIGHTING POSITION RIGHT	P18-3	A12	C04052
33	EXTERIOR LIGHTING WING SCAN	P18-3	A14	C00110
33	GALLEY LTS	P92	E10	C00242
33	GND SERV CLG NIGHT CONT	P91	C4	C00184
33	GND SERV WDO BRT CONT (INOP)	P92	C1	C01200
33	INDICATOR MASTER DIM BAT	P6-3	D12	C00310
33	INDICATOR MASTER DIM BUS 1	P6-3	D13	C00311
33	INDICATOR MASTER DIM BUS 2	P6-3	D14	C00312
33	INDICATOR MASTER DIM DIM/TST CONT	P6-3	D11	C00133
33	INDICATOR MASTER DIM SECT 1	P6-3	E11	C00313
33	INDICATOR MASTER DIM SECT 2	P6-3	E12	C00314
33	INDICATOR MASTER DIM SECT 3	P6-3	E13	C00315
33	INDICATOR MASTER DIM SECT 4	P6-3	E14	C00316
33	INDICATOR MASTER DIM SECT 5	P6-3	F11	C00317
33	INDICATOR MASTER DIM SECT 6	P6-3	F12	C00318
33	INDICATOR MASTER DIM SECT 7	P6-3	F13	C01179
33	INDICATOR MASTER DIM SECT 8	P6-3	F14	C01180
33	LAVATORY MIRROR LIGHT	P18-3	E14	C01648
33	OVERHEAD 28V PRI	P6-3	D9	C00323
33	OVERHEAD 28V SEC	P6-3	D10	C00325
33	OVERHEAD 5V SECONDARY	P6-3	E10	C00328
33	OVERHEAD 5V SECONDARY	P6-3	E8	C00326
33	OVERHEAD 5V SECONDARY	P6-3	E9	C00329
33	OVERHEAD 5V SECONDARY	P6-3	F10	C00390
33	OVERHEAD 5V SECONDARY	P6-3	F8	C00327
33	OVERHEAD 5V SECONDARY	P6-3	F9	C00330
33	PANEL & INSTR 28V PRI CAPT & CTR	P6-3	B9	C00331
33	PANEL & INSTR 28V PRI F/O	P6-3	B10	C00335
33	PANEL & INSTR CB PANEL	P6-3	C9	C00219
33	PANEL & INSTR ELEX PANEL	P6-3	C10	C00284
33	PASS CAB SIGNS LAV OCC SIGN	P18-3	D10	C01217
33	PASS CABIN LIGHTING EMER CHGR FWD	P18-3	A11	C00250
33	PASS CABIN LIGHTING EMER CHGR LAFT	P18-3	A10	C01357
33	PASS CABIN LIGHTING EMER CHGR R AFT	P18-3	B10	C01358
33	PASS CABIN SIGNS FASTEN SEAT BELT L	P18-3	C9	C04071
33	PASS CABIN SIGNS FASTEN SEAT BELT R	P18-3	C8	C04072
33	PASS CABIN SIGNS NO SMOKING L	P18-3	C11	C01407
33	PASS CABIN SIGNS NO SMOKING L (INOP)	P18-3	C11	C01407
33	PASS CABIN SIGNS NO SMOKING LEFT	P18-3	C11	C01407
33	PASS CABIN SIGNS NO SMOKING R	P18-3	C10	C01408
33	PASS CABIN SIGNS NO SMOKING R (INOP)	P18-3	C10	C01408
33	PASS CABIN SIGNS NO SMOKING RIGHT	P18-3	C10	C01408
33	PASS READING LIGHTS LEFT	P91	B1	C00087
33	PASS READING LIGHTS-LEFT	P91	B2	C00088
33	PASS READING LIGHTS-LEFT	P91	B3	C00089
33	PASS READING LIGHTS-LEFT	P91	B4	C00090
33	PASS READING LIGHTS-LEFT	P91	B5	C00091
33	PASS READING LIGHTS-LEFT	P91	B6	C00092
33	PASS READING LIGHTS-LEFT	P91	B7	C00773
33	PASS READING LIGHTS-LEFT	P91	B8	C01152
33	PASS READING LIGHTS-LEFT	P91	B9	C01153
33	PASS READING LIGHTS-RIGHT	P92	B2	C00095
33	PASS READING LIGHTS-RIGHT	P92	B3	C00096
33	PASS READING LIGHTS-RIGHT	P92	B4	C00097
33	PASS READING LIGHTS-RIGHT	P92	B5	C00098
33	PASS READING LIGHTS-RIGHT	P92	B6	C00099
33	PASS READING LIGHTS-RIGHT	P92	B7	C00774
33	PASS READING LIGHTS-RIGHT	P92	B8	C01437
33	PASS READING LIGHTS-RIGHT	P92	B9	C01438
33	PASS READING LIGHTS-RIGHT STA 340-464	P92	B1	C00094
33	PASSENGER CABIN PASS CALL LEFT	P18-3	A8	C01403
33	PASSENGER CABIN PASS CALL RIGHT	P18-3	B8	C01404
33	PASSENGER CABIN SIGNS PASS SIGN CONT	P18-3	D11	C00442
33	THRSHOLD LTS (INOP)	P91	C1	C01350
33	WHEEL WELL LT	P92	C2	C00125
33	WINDOW LIGHT LEFT	P92	E12	C00776
33	WINDOW LIGHT RIGHT	P92	E11	C00594
33	WORK AND THSHD LTS	P91	C3	C00140

34 NAVIGATION CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
34	ADIRU LEFT AC	P18-1	E7	C01007
34	ADIRU LEFT DC	P18-1	E5	C01009
34	ADIRU LEFT EXC	P18-2	E8	C00425
34	ADIRU RIGHT AC	P6-1	C14	C01008
34	ADIRU RIGHT DC	P6-1	C17	C01010
34	ADIRU RIGHT EXC	P6-1	C15	C00426
34	ATC 1	P18-1	B5	C00186
34	ATC 2	P6-1	D14	C00188
34	ATC ANT SWITCH	P6-1	E14	C01194
34	FMCS BITE DC	P18-2	B10	C01192
34	FMCS CDU 1	P18-2	A7	C01018
34	FMCS CDU 2	P6-1	D15	C01050
34	FMCS CMPTR 1	P18-2	A6	C01017
34	FMCS CMPTR 2	P6-1	D16	C01262
34	FMCS XFR	P6-1	E15	C01263
34	GND PROX WARN	P18-1	B7	C00629
34	HUD SYS ALTN DC	P18-2	C6	C04055
34	HUD SYS NORMAL DC	P18-2	C5	C04056
34	INSTR XFR	P18-2	E2	C00412
34	ISFD	P18-2	D8	C01551
34	MACH WARN SYS -2	P6-1	B7	C00549
34	MACH WARN SYS-1	P18-2	E3	C00170
34	RADIO NAVIGATION ADF 1	P18-1	A4	C01382
34	RADIO NAVIGATION ADF 2	P6-1	A17	C01383
34	RADIO NAVIGATION ADF 2 (INOP)	P6-1	A17	C01383
34	RADIO NAVIGATION DME 1	P18-1	B3	C00190
34	RADIO NAVIGATION DME 2	P6-1	A14	C00192
34	RADIO NAVIGATION MMR 1	P18-1	A2	C01479
34	RADIO NAVIGATION MMR 2	P6-1	A13	C01480
34	RADIO NAVIGATION NAV CONT PNL 1	P18-1	A3	C01378
34	RADIO NAVIGATION NAV CONT PNL 2	P6-1	A15	C01379
34	RADIO NAVIGATION NAV SNSR DC-1	P18-1	B1	C01376
34	RADIO NAVIGATION NAV SNSR DC-2	P6-1	A10	C01377
34	RADIO NAVIGATION RADIO ALTM 1	P18-1	B4	C01384
34	RADIO NAVIGATION RADIO ALTM 2	P6-1	A16	C01385
34	RADIO NAVIGATION VOR 2 (INOP)	P6-1	A12	C01375
34	RADIO NAVIGATION VOR/MKR BCN 1 (INOP)	P18-1	A1	C01374
34	TCAS	P18-1	B6	C01195
34	WEATHER RADAR RT	P6-1	D13	C00120
34	WEATHER RADAR RT RIGHT	P18-3	C7	C01678

35 OXYGEN CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
35	OXYGEN IND	P18-3	F7	C00156
35	OXYGEN MAN CONT	P18-3	F8	C00785
35	OXYGEN PASS LEFT	P18-3	F10	C00783
35	OXYGEN PASS RIGHT	P18-3	F9	C00784

36 PNEUMATIC CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
36	AIR COND BLEED AIR CONTROL BACKUP LEFT	P6-4	D5	C04037
36	AIR COND BLEED AIR CONTROL BACKUP RIGHT	P6-4	D6	C04038
36	AIR COND BLEED AIR CONTROL PRIMARY LEFT	P6-4	A6	C04035
36	AIR COND BLEED AIR CONTROL PRIMARY RIGHT	P6-4	B6	C04036
36	AIR CONDITIONING BLEED AIR PRESS IND	P6-4	B5	C00077
36	AIR CONDITIONING BLEED AIR VALVE ISLN	P6-4	A5	C00259
36	AIR CONDITIONING BLEED AIR VALVES L	P6-4	A7	C00796
36	AIR CONDITIONING BLEED AIR VALVES R	P6-4	B7	C00797
36	IASC EAI INHIBITS OUT L	P6-5	F6	C04065
36	IASC EAI INHIBITS OUT R	P6-5	F7	C04066

38 WATER / WASTE CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
38	LAVATORY WATER HEATER A	P18-3	F13	C00104
38	LAVATORY WATER HEATER D	P18-3	F14	C01073
38	LAVATORY WATER HEATER E	P18-3	F15	C01096
38	POT WATER COMPRESSOR	P91	D11	C00873
38	VACUUM WASTE	P18-3	D19	C01423
38	VACUUM WASTE BLOWER	P91	F2	C01389
38	VACUUM WASTE CONT	P91	C11	C01388
38	WATER QTY IND	P91	C9	C00138

44 CABIN SYSTEMS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
44	BROADBAND/WIFI CONTROL	P6-5	D13	C04076
44	CWAP/SERVER	P6-5	D12	C04075
44	FILE SEVER 1	J11	G3	C04085
44	HDM SERVER	J11	G4	C04080
44	IFE AC	P6-1	B9	C01945
44	IFE AC (INOP)	P6-1	B9	C01945
44	IFE DC	P6-1	B10	C01952
44	IFE DC (INOP)	P6-1	B10	C01952
44	IFE INTEGRATED SERVER	J11	G4	C04080
44	SEAT POWER FWD	P6-5	A17	C01644
44	VIDEO 1	P6-1	D5	C01981
44	VIDEO 2	P6-1	D6	C01980
44	VIDEO 3	P6-1	D7	C01983
44	VIDEO 4	P6-1	D8	C01982

46 INFORMATION SYSTEMS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
46	AID PWR C/B	P6-5	B12	C04113
46	CREW WAP PWR	P6-5	B11	C01973
46	CREW WAP PWR (INOP)	P6-5	B11	C01973
46	NETWORK FILE SERVER	P6-5	C1	C01958
46	ONS DATALOAD RLY	P6-5	C2	C04067
46	WIRELESS WAN UNIT C/B	P6-5	B12	C01974

47 INERT GAS SYSTEMS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
47	NGS ALT PWR	P18-3	E15	C01680
47	NITROGEN GENERATION CONTROL	P18-3	D17	C01657

49 APU CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
49	APU FIRE SW POWER	P6-2	B19	C01344
49	APU INLET DOOR	P6-5	A12	C04011
49	APU START CONV	P91	A11	C01336
49	AUX POWER UNIT CONT	P6-4	A14	C00033

52 DOORS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
52	DOOR LOCK	P6-3	E1	C00137
52	OVERWING FLIGHT LOCK-LEFT	P6-2	D2	C01514
52	OVERWING FLIGHT LOCK-RIGHT	P6-2	D1	C01515

73 ENGINE FUEL AND CONTROL CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
73	ENG 1 STBY ALTN PWR CHAN A	P6-5	E4	C04019
73	ENG 1 STBY ALTN PWR RELAY CHAN A	P6-5	E3	C04018
73	ENGINE 1 ALTN PWR CHAN A	P18-2	A5	C01314
73	ENGINE 1 ALTN PWR CHAN A	P18-2	A5	C04007
73	ENGINE 1 ALTN PWR CHAN B	P18-2	A4	C01390
73	ENGINE 1 ALTN PWR CHAN B	P18-2	A4	C04008
73	ENGINE 1 EEC FAN BLOWERS	P6-5	D2	C04049
73	ENGINE 1 EEC FAN BLOWERS (INOP)	P6-5	D2	C04049
73	ENGINE 1 RUN/PWR	P18-2	B3	C01312
73	ENGINE 2 ALTN PWR CHAN A	P6-2	D8	C01315
73	ENGINE 2 ALTN PWR CHAN A	P6-2	D8	C04009
73	ENGINE 2 ALTN PWR CHAN B	P6-2	D7	C01391
73	ENGINE 2 ALTN PWR CHAN B	P6-2	D7	C04010
73	ENGINE 2 EEC FAN BLOWERS	P6-5	D5	C04050
73	ENGINE 2 EEC FAN BLOWERS (INOP)	P6-5	D5	C04050
73	ENGINE 2 RUN/PWR	P6-2	B5	C01313

74 IGNITION CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
74	ENGINE 1 IGNITION LEFT	P18-2	A3	C00153
74	ENGINE 1 IGNITION PWR CONT	P6-5	E1	C04016
74	ENGINE 1 IGNITION RIGHT	P18-2	A1	C00458
74	ENGINE 2 IGNITION LEFT	P6-2	D6	C00151
74	ENGINE 2 IGNITION PWR CONT	P6-5	E2	C04017
74	ENGINE 2 IGNITION RIGHT	P6-2	D4	C00459

76 ENGINE CONTROLS CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
76	ENGINE 1 START LEVER CHAN A	P18-2	B1	C01316
76	ENGINE 1 START LEVER CHAN B	P18-2	B2	C01317
76	ENGINE 2 START LEVER CHAN A	P6-2	B6	C01318
76	ENGINE 2 START LEVER CHAN B	P6-2	B7	C01319
76	ENGINE FUEL ENGINE 1 HPSOV CONT	P6-3	E5	C01320
76	ENGINE FUEL ENGINE 1 HPSOV IND	P6-3	E6	C01395
76	ENGINE FUEL ENGINE 2 HPSOV CONT	P6-3	E3	C01321
76	ENGINE FUEL ENGINE 2 HPSOV IND	P6-3	E4	C01396

78 EXHAUST CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
78	ENGINE 1 THRUST REVERSER CONT	P18-2	B5	C00276
78	ENGINE 1 THRUST REVERSER INTLK	P18-2	B6	C01412
78	ENGINE 1 THRUST REVERSER SYNC LOCK	P18-2	B7	C01266
78	ENGINE 2 THRUST REVERSER CONT	P6-2	C7	C00277
78	ENGINE 2 THRUST REVERSER INTLK	P6-2	C6	C01413
78	ENGINE 2 THRUST REVERSER SYNC LOCK	P6-2	C5	C01267

80 STARTING CBs

ATA	CB NAME	PANEL	LOCATION	CB NO.
80	ENGINE 1 START VALVE	P18-2	B8	C01103
80	ENGINE 2 START VALVE	P6-2	C4	C00154