An MD80 in climb at 5000 ft had the battery charger fail light and cabin lights out. Returned to field. Found ground service bus circuit breaker tripped.

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Attributes
ACN	532021
Time
Date	200112
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 5000
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	532021
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : battery charger fail light other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport
Consequence	other other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

After clean up, the battery charger light came on followed by the flight attendant reporting the cabin lights were out. We followed the red book abnormal for battery charger light on and elected to return to ZZZ. At gate arrival the ground service bus control circuit breaker was out. It is most likely that the captain's shoulder harness was released and caused this circuit breaker to pop because I don't release my harness until the aircraft is clean.

Original NASA ASRS Text

Title: AN MD80 IN CLB AT 5000 FT HAD THE BATTERY CHARGER FAIL LIGHT AND CABIN LIGHTS OUT. RETURNED TO FIELD. FOUND GND SVC BUS CIRCUIT BREAKER TRIPPED.

Narrative: AFTER CLEAN UP, THE BATTERY CHARGER LIGHT CAME ON FOLLOWED BY THE FLT ATTENDANT RPTING THE CABIN LIGHTS WERE OUT. WE FOLLOWED THE RED BOOK ABNORMAL FOR BATTERY CHARGER LIGHT ON AND ELECTED TO RETURN TO ZZZ. AT GATE ARR THE GND SVC BUS CTL CIRCUIT BREAKER WAS OUT. IT IS MOST LIKELY THAT THE CAPT'S SHOULDER HARNESS WAS RELEASED AND CAUSED THIS CIRCUIT BREAKER TO POP BECAUSE I DON'T RELEASE MY HARNESS UNTIL THE ACFT IS CLEAN.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.