A B757-200 rejected takeoff at less than 20 KTS due to EICAS message 'main battery charger.' message...

Attributes
ACN	670029
Time
Date	200508
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	670029
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 warning other flight crewa other flight crewb
Resolutory Action	flight crew : rejected takeoff other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

We were cleared for takeoff and just starting a rolling takeoff; when we noticed an electric flicker and status message. The status message said 'main battery charger.' we rejected the takeoff at less than 20 KTS on runway 8R. We taxied clear and the status message disappeared. We were reclred for takeoff and as I pushed the throttles forward we lost our dc power. Another low speed abort at less than 20 KTS was accomplished on runway 8R. This time we had a status message that said 'main battery charger.' we also had a popped circuit breaker for hot battery bus. We lost many electrical components which were dc power related. We taxied back to a gate and turned the aircraft over to maintenance. Callback conversation with reporter revealed the following information: the reporter stated both rejected takeoffs were low speed 20 KTS or less. Maintenance has made no contact with either crew member on the maintenance action taken. On return to the gate; another aircraft was assigned to the trip and reporter left without talking with maintenance.

Original NASA ASRS Text

Title: A B757-200 REJECTED TKOF AT LESS THAN 20 KTS DUE TO EICAS MESSAGE 'MAIN BATTERY CHARGER.' MESSAGE CLRED. AGAIN; REJECTED TKOF AT LESS THAN 20 KTS WHEN PWR APPLIED LOST ALL DC PWR.

Narrative: WE WERE CLRED FOR TKOF AND JUST STARTING A ROLLING TKOF; WHEN WE NOTICED AN ELECTRIC FLICKER AND STATUS MESSAGE. THE STATUS MESSAGE SAID 'MAIN BATTERY CHARGER.' WE REJECTED THE TKOF AT LESS THAN 20 KTS ON RWY 8R. WE TAXIED CLR AND THE STATUS MESSAGE DISAPPEARED. WE WERE RECLRED FOR TKOF AND AS I PUSHED THE THROTTLES FORWARD WE LOST OUR DC PWR. ANOTHER LOW SPD ABORT AT LESS THAN 20 KTS WAS ACCOMPLISHED ON RWY 8R. THIS TIME WE HAD A STATUS MESSAGE THAT SAID 'MAIN BATTERY CHARGER.' WE ALSO HAD A POPPED CIRCUIT BREAKER FOR HOT BATTERY BUS. WE LOST MANY ELECTRICAL COMPONENTS WHICH WERE DC PWR RELATED. WE TAXIED BACK TO A GATE AND TURNED THE ACFT OVER TO MAINT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED BOTH REJECTED TKOFS WERE LOW SPD 20 KTS OR LESS. MAINT HAS MADE NO CONTACT WITH EITHER CREW MEMBER ON THE MAINT ACTION TAKEN. ON RETURN TO THE GATE; ANOTHER ACFT WAS ASSIGNED TO THE TRIP AND RPTR LEFT WITHOUT TALKING WITH MAINT.

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.

A B757-200 rejected takeoff at less than 20 KTS due to EICAS message 'main battery charger.' message cleared. Again; rejected takeoff at less than 20 KTS when power applied lost all dc power.