2022-05 · NASA ASRS report 1897783
A320 pilot crew reported an electrical failure while using the single engine taxi procedure. The aircraft switched to alternate brakes and the Captain was able to safely stop the aircraft.
During Taxi-in at ZZZ after required cool down time was reached; Captain instructed First Officer to shutdown No. 2 engine. At the time of engine 2 shutdown; Aircraft was on a straight section of taxiway; Auxiliary Power Unit off; aircraft taxi speed approximately 8 kts.; with brakes being applied by Captain in preparation of making a left turn onto another taxiway. When no.2 engine was shut down and its associated generator tripped off; aircraft experienced a total electrical power loss except for those systems supplied by battery power only. When power was lost; aircraft experienced a very pronounced; braking deceleration as aircraft braking transferred to alternate brakes and a loss of nose wheel steering.Captain used differential braking to both counter act aircraft drift to the right (due to single engine taxi) and stop the aircraft. Aircraft safely came to a stop about 6 ft. to the right of taxi centerline. Parking brake was set and the process of recovering electrical power; coordinating with flight attendants and passengers commenced. To restore electrical power crew attempted to first reset GEN 1. GEN1 dropped off immediately after resetting fault switch. Auxiliary Power Unit was then started and after Auxiliary Power Unit GEN was powering all busses another attempt to reset GEN 1 failed. After discussion with First Officer and satisfied that Auxiliary Power Unit GEN was powering all busses normally; it was decide to continue taxi to the gate.
During Taxi-in at ZZZ after required cool down time was reached; Captain instructed FO to shutdown No. 2 engine. At the time of engine 2 shutdown; Aircraft was on a straight section of taxiway; APU off; aircraft taxi speed approximately 8 kts; with brakes being applied by Captain in preparation of making a left turn onto another taxiway. When no.2 engine was shutdown and it's associated Generator tripped off; aircraft experienced a total electrical power loss except for those systems supplied by battery power only. When power was lost; aircraft experienced a very pronounced; braking deceleration as aircraft braking transferred to alternate brakes and a loss of nose wheel steering. Captain used differential braking to both counter act aircraft drift to the right (due to single engine taxi) and stop the aircraft. Aircraft safely came to a stop about 6 feet to the right of taxi centerline. Parking brake was set and the process of recovering electrical power; coordinating with flight attendants and passengers commenced. To restore electrical power crew attempted to first reset GEN 1. GEN1 dropped off immediately after reseting fault switch. APU was then started and after APU GEN was powering all busses another attempt to reset GEN 1 failed. After discussion with FO and satisfied that APU GEN was powering all busses normally; it was decide to continue taxi to the gate.
More incidents for this aircraft family
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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