A B767-300 after landing and turning off the runway on to a taxiway the right engine was shut down. ...

Attributes
ACN	712561
Time
Date	200610
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzzz.airport
State Reference	FO
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 280 flight time total : 16000 flight time type : 8000
ASRS Report	712561
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : lft bus failure eicas msg other flight crewa other flight crewb
Resolutory Action	flight crew : overcame equipment problem
Consequence	other other
Supplementary
Problem Areas	Chart Or Publication Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

Oct/xa/06; B767-300 taxi in. After landing we cleared runway 9R onto taxiway B; waited 3 mins while taxiing and elected to shut down the right engine. Everything appeared normal. Within a min or so we started having electrical power problems. It initially appeared to be AC power shedding and reconnecting as we would be reduced to battery power and then normal AC power and then finally loss of all AC power. I immediately cranked the APU but only got marginal AC power back and still did not have center or right hydraulic system pressure. We were able to stop the aircraft about the same time I felt a loss in braking and steering capability. We were able to remain on taxiway and notified ATC we were having problems and might need the company to send a tug to get us to the gate. First officer suggested restarting the right engine and had to accomplish that with standby engine indicator. That did get hydraulic pressure for the center and right hydraulic system and right AC bus power. We were then able to see we had lost the left AC bus and the left engine generator but had no idea which came first. Since it appeared we could now get to the gate safely I elected to not reset the left AC bus and do further troubleshooting at the gate with ZZZZ mechanics. The parking was without incident. Debriefing with ZZZZ maintenance and maintenance repair manual sent with descriptive; loss of left generator and left AC bus after shutting down right engine during taxi-in.

Original NASA ASRS Text

Title: A B767-300 AFTER LNDG AND TURNING OFF THE RWY ON TO A TXWY THE R ENG WAS SHUT DOWN. IMMEDIATELY LOST ALL ELECTRICAL PWR. DISCOVERED L AC BUS TRIPPED.

Narrative: OCT/XA/06; B767-300 TAXI IN. AFTER LNDG WE CLRED RWY 9R ONTO TXWY B; WAITED 3 MINS WHILE TAXIING AND ELECTED TO SHUT DOWN THE R ENG. EVERYTHING APPEARED NORMAL. WITHIN A MIN OR SO WE STARTED HAVING ELECTRICAL PWR PROBS. IT INITIALLY APPEARED TO BE AC PWR SHEDDING AND RECONNECTING AS WE WOULD BE REDUCED TO BATTERY PWR AND THEN NORMAL AC PWR AND THEN FINALLY LOSS OF ALL AC PWR. I IMMEDIATELY CRANKED THE APU BUT ONLY GOT MARGINAL AC PWR BACK AND STILL DID NOT HAVE CTR OR R HYD SYS PRESSURE. WE WERE ABLE TO STOP THE ACFT ABOUT THE SAME TIME I FELT A LOSS IN BRAKING AND STEERING CAPABILITY. WE WERE ABLE TO REMAIN ON TXWY AND NOTIFIED ATC WE WERE HAVING PROBS AND MIGHT NEED THE COMPANY TO SEND A TUG TO GET US TO THE GATE. FO SUGGESTED RESTARTING THE R ENG AND HAD TO ACCOMPLISH THAT WITH STANDBY ENG INDICATOR. THAT DID GET HYD PRESSURE FOR THE CTR AND R HYD SYS AND R AC BUS PWR. WE WERE THEN ABLE TO SEE WE HAD LOST THE L AC BUS AND THE L ENG GENERATOR BUT HAD NO IDEA WHICH CAME FIRST. SINCE IT APPEARED WE COULD NOW GET TO THE GATE SAFELY I ELECTED TO NOT RESET THE L AC BUS AND DO FURTHER TROUBLESHOOTING AT THE GATE WITH ZZZZ MECHS. THE PARKING WAS WITHOUT INCIDENT. DEBRIEFING WITH ZZZZ MAINT AND MAINT REPAIR MANUAL SENT WITH DESCRIPTIVE; LOSS OF L GENERATOR AND L AC BUS AFTER SHUTTING DOWN R ENG DURING TAXI-IN.

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 B767-300 after landing and turning off the runway on to a taxiway the right engine was shut down. Immediately lost all electrical power. Discovered left AC bus tripped.