<< >> NASA ASRS Report 693697, April 2006

A B767-300ER in cruise at FL370 diverted due to numerous EICAS warnings and battery charger and battery circuit breakers tripped.

Attributes
ACN	693697
Time
Date	200604
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 37000
Environment
Weather Elements	Rain
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	693697
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : eicas warnings other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

65 miles southwest of ZZZ; we received 6 simultaneous EICAS messages. Initial thought was we had lost the battery (all IRS on 'dc fail'). Found main battery bus and battery charger circuit breakers popped. Contacted dispatch and were attempting to troubleshoot but decided WX and sunlight were getting worse and did not want to be in the WX and the dark with no battery backup. Diverted to ZZZ with no problems.callback conversation with reporter revealed the following information: the reporter stated with the EICAS warning coupled with the battery and battery charger circuit breakers tripped; the thought of continuing the flight and operating with the battery bus inoperative was not a good idea. The airplane was 65 miles from a suitable airport and the decision was made to divert. The maintenance action was replacement of the battery and battery charger.

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Original NASA ASRS Text

Title: A B767-300ER IN CRUISE AT FL370 DIVERTED DUE TO NUMEROUS EICAS WARNINGS AND BATTERY CHARGER AND BATTERY CIRCUIT BREAKERS TRIPPED.

Narrative: 65 MILES SW OF ZZZ; WE RECEIVED 6 SIMULTANEOUS EICAS MESSAGES. INITIAL THOUGHT WAS WE HAD LOST THE BATTERY (ALL IRS ON 'DC FAIL'). FOUND MAIN BATTERY BUS AND BATTERY CHARGER CIRCUIT BREAKERS POPPED. CONTACTED DISPATCH AND WERE ATTEMPTING TO TROUBLESHOOT BUT DECIDED WX AND SUNLIGHT WERE GETTING WORSE AND DID NOT WANT TO BE IN THE WX AND THE DARK WITH NO BATTERY BACKUP. DIVERTED TO ZZZ WITH NO PROBS.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED WITH THE EICAS WARNING COUPLED WITH THE BATTERY AND BATTERY CHARGER CIRCUIT BREAKERS TRIPPED; THE THOUGHT OF CONTINUING THE FLT AND OPERATING WITH THE BATTERY BUS INOP WAS NOT A GOOD IDEA. THE AIRPLANE WAS 65 MILES FROM A SUITABLE ARPT AND THE DECISION WAS MADE TO DIVERT. THE MAINT ACTION WAS REPLACEMENT OF THE BATTERY AND BATTERY CHARGER.

Data retrieved from NASA's ASRS site as of January 2009 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.