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Continental
COMMUNICATIONS
Sec. 2.5 Page 1
Rev. 11/15/02 #41
COMMUNICATIONS
ACARS ELECTRICAL POWER LOSS
If 115V AC power is lost (DC power normal), the ACARS automatically
reverts to VOX MOD(the DATA MODE is inoperative). GMT and memory
will continue to function as long as DC power is available.
* * * *
ACARS MU FAIL OR CU FAIL
The ACARS system is inoperative.
Check the AC and DC circuit breakers (>>@ 18-2, E 14 & 15)
(BCD 6-1, E 7 & 9). If the circuit breakers are in, consider the
“ACARS” system inoperative and use normal ARINC voice procedures for
reporting.
* * * *
COMMUNICATIONS
Sec. 2.5 Page 2
Rev. 11/15/02 #41
Continental 737
Flight Manual
INTENTIONALLY LEFT BLANK
737
Flight Manual
Continental
ELECTRICAL
Sec. 2.6 TOC-1
Rev. 11/15/02 #41
2.6 – ELECTRICAL
TABLE OF CONTENTS
BCD BATTERY DISCHARGE.................................................... 1
>>@ BUS OFF ............................................................................. 1
CIRCUIT BREAKER PROCEDURES.................................................... 2
>>@ CSD HIGH OIL TEMPERATURE....................................... 4
>>@ CSD LOW OIL PRESSURE ............................................... 5
BCD DRIVE................................................................................. 5
BCD ELEC .................................................................................. 5
ELECTRICAL SMOKE / FUMES OR FIRE CHECKLIST..................... 6
ELECTRICAL SYSTEM POWER DISTRIBUTION................................ 7
ALL GENERATORS INOPERATIVE............................................... 9
LOSS OF BOTH ENGINE GENERATORS CHECKLIST .................. 13
BCD SOURCE OFF ................................................................. 15
STANDBY POWER OFF...................................................................... 16
BCD TR UNIT ........................................................................... 16
TRANSFER BUS OFF.......................................................................... 16
ELECTRICAL
Sec. 2.6 TOC-2
Rev. 11/15/02 #41
Continental 737
Flight Manual
INTENTIONALLY LEFT BLANK
737
Flight Manual
Continental
ELECTRICAL
Sec. 2.6 Page 1
Rev. 11/15/02 #41
ELECTRICAL
BCD BATTERY DISCHARGE
The BAT DISCHARGE light illuminated indicates excessive battery discharge is
detected with the battery switch ON.
Note: A fully charged battery provides a minimum of 30 minutes of standby
power.
* * * *
>>@ BUS OFF
The BUS OFF light indicates the respective generator bus is unpowered.
Engine Generator Switch.............................................................................ON
IF BUS OFF Light Remains Illuminated:
APU (If Available) ....................................................START & ON BUS
Note: If BUS OFF light is not associated with Engine Failure or Shutdown,
accomplish the CSD High Oil Temperature or CSD Low Oil
Pressure checklists, if appropriate.
* * * *
ELECTRICAL
Sec. 2.6 Page 2
Rev. 11/15/02 #41
Continental
737
Flight Manual
CIRCUIT BREAKER PROCEDURES
WARNING: Resetting of any tripped fuel boost pump circuit breaker, fuel
quantity indication system circuit breaker, or lavatory flush
motor circuit breaker is prohibited.
Caution: The intentional pulling and resetting of a circuit breaker is
prohibited due to potential impact on multiple aircraft
systems, except when specifically directed by a non-normal
checklist or appropriate technical authority.
A circuit breaker found in the out position may be the result of:
· Tripped condition due to an electrical fault.
· Inadvertent pulling out by contact / catching with an object.
· Intentional pulling during a MX / operational procedure and failure to reset.
A tripped CB refers to a circuit breaker that was previously verified to be in the
normal closed position, then subsequently pops out due to an electrical fault.
Given the significance of any circuit breaker that is found in the out position,
the following guidelines should be adhered to in order to address the issue:
Preflight Before Block Out:
A circuit breaker that is found in the out position during preflight inspection of
cockpit preparation (i.e. the crew does not know whether it has tripped or has
been pulled out) may be reset one time, unless any of the following conditions
are noted:
· There is reason to believe that is has tripped due to an electrical fault, or
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