What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Failure of teh K106 relay B1B2 contacts initially caused loss of electrical power to the DC bat bus and DC stby bus. As directed by the qrh, crew positioned stby pwr selector to "bat" position which caused the DC bat bus, DC stby bus, ac stby bus, and hot bat bus to be powered solely by the main battery. The crew elected to continue the flight. The main battery power was depleted in 1 hr 40 minutes which caused the loss of numerous systems that were then dependent on the main battery pwr. The aircraft anti skid, tr, spd brakes were affected and the aircraft blew/damaged all 8 tires and brakes on touchdown. The crew deliberately steered the aircraft off the left side of the departure end of the runway into the tall grass and mud to stop it.
As the FAA filed it
(-23) FAILURE OF TEH K106 RELAY B1B2 CONTACTS INITIALLY CAUSED LOSS OF ELECTRICAL POWER TO THE DC BAT BUS AND DC STBY BUS. AS DIRECTED BY THE QRH, CREW POSITIONED STBY PWR SELECTOR TO "BAT" POSITION WHICH CAUSED THE DC BAT BUS, DC STBY BUS, AC STBY BUS, AND HOT BAT BUS TO BE POWERED SOLELY BY THE MAIN BATTERY. THE CREW ELECTED TO CONTINUE THE FLIGHT. THE MAIN BATTERY POWER WAS DEPLETED IN 1 HR 40 MINUTES WHICH CAUSED THE LOSS OF NUMEROUS SYSTEMS THAT WERE THEN DEPENDENT ON THE MAIN BATTERY PWR. THE AIRCRAFT ANTI SKID, TR, SPD BRAKES WERE AFFECTED AND THE AIRCRAFT BLEW/DAMAGED ALL 8 TIRES AND BRAKES ON TOUCHDOWN. THE CREW DELIBERATELY STEERED THE AIRCRAFT OFF THE LEFT SIDE OF THE DEPARTURE END OF THE RUNWAY INTO THE TALL GRASS AND MUD TO STOP IT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.