All tripped circuit breakers, whether reset or not, must be written up in the aircraft logbook.  The entry should include:
1.
Name and location of the CB.

2.
Z -time when trip occurred (if known).

3.
Phase of flight, altitude/airspeed, etc, when trip occurred.

4.
Weather conditions if appropriate.

5.
Any pilot action that occurred prior or during the trip sequence.

6.
Attempted reset and results.
IF Generator Bus Circuit Breaker(s) Tripped (35 or 50 amp):

Note:  When APU is operating in flight, only the APU BUS switch on the affected side should be on.
AC BUS X-TIE Switch............................................................OPEN

Pull circuit breakers for all three phases of the particular load.  After cooling period reset all three circuit breakers simultaneously.
Reset is Unsuccessful:
OR
Pull circuit breakers for all three phases of the particular load.
* * * *
Reset is Successful:
AC BUS X-TIE Switch.....................................................AUTO

* * * *
IF Other Than Generator Bus Circuit Breaker(s) Tripped: IF The Particular Load Has Switch Control: Turn the switch off for the cooling period.  Turn switch back on after resetting circuit breaker(s). IF The Particular Load Has Three Phase Circuit Breakers: Pull circuit breakers for all three phases of the particular load. After cooling period, reset all three circuit breakers simultaneously. IF Reset Is Unsuccessful: Do not attempt another reset.  If applicable, pull circuit breakers for all three phases of the particular load.
* * * *
Sec. 3 Page 28 MD-80
Rev. 01/01/97 #25 Continental Flight Manual

CSD OIL LIGHT ON

Associated GEN OFF Light and CSD Oil OUTLET TEMP Gauge..........................................CHECK
IF  GEN OFF Light Is Off and CSD Oil OUTLET TEMP Is In Yellow Band: 
OR  Refer to CSD OIL OUTLET TEMP HIGH, this section. * * * * 
IF  GEN OFF Light Is On Or CSD Oil OUTLET TEMP Is At/Above Red Limit: 
OR  GEN Switch (Affected System) ............................................. OFF 

 Utilize APU generator if available. Continue checklist at . 
IF  GEN OFF Light Is Out And CSD Oil OUTLET TEMP Is Normal: 
APU Generator Availability ................................. DETERMINE 
IF  APU Generator Is Not Available: 
OR  Continue operation of engine generator (with CSD OIL light on) at Captain’s discretion. 
* * * * 
IF  APU Generator Is Available: 
APU BUS Switch (Engine With CSD OIL Light On) ..... ON 
GEN Switch (Affected System) ...................................... OFF 
.
Caution:  Next switch action is irrevocable. Make certain switch selected is for malfunctioning CSD. 
Note:  CSD disconnect can be confirmed by observing AC volts and frequency below scale. CSD disconnect may cause temporary loss of associated AHRS unit. Realignment in flight will require 45 seconds. 

(Continued)
MD-80 Sec. 3 Page 28-A
Flight Manual Continental Rev. 01/01/97  #25

CSD Disconnect Switch (Affected System)
(Hold for three seconds) ................................................DISC

Note:  If remaining engine generator should fail, APU generator will crosstie. If this occurs, move remaining APU switch to ON.
IF Only One Generator (Engine or APU) Is Operating:
- - - - - PRIOR TO LANDING - - - - -
One AIR CONDITIONING SUPPLY Switch......... OFF
GALLEY Switch ..................................................... OFF

* * * *
Sec. 3 Page 28-B MD-80
Rev. 01/01/97 #25 Continental Flight Manual

CSD OIL OUTLET TEMP HIGH

CSD Oil OUTLET TEMP Gauge and Frequency Of Affected Generator.........................................CHECK
IF  Temperature Remains in Caution (Yellow) Zone and Frequency Is Within Limits: 
OR  Monitor temperature and frequency. 
* * * * 
IF  Temperature Increases Steadily Toward Danger (Red) Zone Or Frequency Is Out Of Limits Or Fluctuating: 

GEN Switch (Affected System) ............................................. OFF

IF  Temperature Stabilizes Below Danger Zone And Frequency Is 

 Within Limits: 
Continue operation with GEN switch off. Utilize APU generator 
OR  if available. 
OR  * * * * 
IF  Temperature Increases And Stabilizes In Danger (Red) Zone Or 
Frequency Is Out Of Limits: 
　
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