What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot stated that upon taxi the a/c failed to respond to steering or braking inputs. The a/c traveled about 300 ft. before leaving the ramp, rolling down a short but steep embankment then colliding with a brick building. The crew and five passengers were evacuated and the crew returned to the a/c to secure the engines which were still running when the evacuation occurred. An initial investigation of a/c did not disclose any pre accident failure to the brake system of any of its components. Numerous items from the brake system have been removed for forwarding to the aco in wichita for post accident component analysis under the supervision of the FAA. The a/c cockpit voice recorder was removed and provided to the NTSB. NTSB advised that the tape contains valuable data and that following analysis and publication by a transcription panel, the contents of the cockpit voice recorder tape will be provided to the FAA. (.4) the pilot stated that he applied braking and left rudder control inputs to make the left turn and the aircraft did not respond, but continued to gain speed straight ahead, exiting the taxiway, and striking a building. Co mponents from the aircraft's brake system were tested and they passed acceptance tests, with the exception of those components that had been damaged in the collision. In addition, when the transcripts of recorded CVR information were compared with procedures specified in the aircraft operating checklist, there was no correlation or consistency between the transcripts of the captain and copilot's recorded conversations, with the procedures specified in the aircraft checklist. Examination of the aircraft also showed that the emergency braking system had not been activated on the accident aircraft, as specified in the taxi procedures, located in section iii of the aircraft operating manual. The taxi procedures specify what the pilot should operate the emergency brake system when a hard braking condition, or a no braking condition is encountered. The emergency brake control is located under the left instrument panel.
As the FAA filed it
(-23) PILOT STATED THAT UPON TAXI THE A/C FAILED TO RESPOND TO STEERING OR BRAKING INPUTS. THE A/C TRAVELED ABOUT 300 FT. BEFORE LEAVING THE RAMP, ROLLING DOWN A SHORT BUT STEEP EMBANKMENT THEN COLLIDING WITH A BRICK BUILDING. THE CREW AND FIVE PASSENGERS WERE EVACUATED AND THE CREW RETURNED TO THE A/C TO SECURE THE ENGINES WHICH WERE STILL RUNNING WHEN THE EVACUATION OCCURRED. AN INITIAL INVESTIGATION OF A/C DID NOT DISCLOSE ANY PRE ACCIDENT FAILURE TO THE BRAKE SYSTEM OF ANY OF ITS COMPONENTS. NUMEROUS ITEMS FROM THE BRAKE SYSTEM HAVE BEEN REMOVED FOR FORWARDING TO THE ACO IN WICHITA FOR POST ACCIDENT COMPONENT ANALYSIS UNDER THE SUPERVISION OF THE FAA. THE A/C COCKPIT VOICE RECORDER WAS REMOVED AND PROVIDED TO THE NTSB. NTSB ADVISED THAT THE TAPE CONTAINS VALUABLE DATA AND THAT FOLLOWING ANALYSIS AND PUBLICATION BY A TRANSCRIPTION PANEL, THE CONTENTS OF THE COCKPIT VOICE RECORDER TAPE WILL BE PROVIDED TO THE FAA. (.4) THE PILOT STATED THAT HE APPLIED BRAKING AND LEFT RUDDER CONTROL INPUTS TO MAKE THE LEFT TURN AND THE AIRCRAFT DID NOT RESPOND, BUT CONTINUED TO GAIN SPEED STRAIGHT AHEAD, EXITING THE TAXIWAY, AND STRIKING A BUILDING. CO MPONENTS FROM THE AIRCRAFT'S BRAKE SYSTEM WERE TESTED AND THEY PASSED ACCEPTANCE TESTS, WITH THE EXCEPTION OF THOSE COMPONENTS THAT HAD BEEN DAMAGED IN THE COLLISION. IN ADDITION, WHEN THE TRANSCRIPTS OF RECORDED CVR INFORMATION WERE COMPARED WITH PROCEDURES SPECIFIED IN THE AIRCRAFT OPERATING CHECKLIST, THERE WAS NO CORRELATION OR CONSISTENCY BETWEEN THE TRANSCRIPTS OF THE CAPTAIN AND COPILOT'S RECORDED CONVERSATIONS, WITH THE PROCEDURES SPECIFIED IN THE AIRCRAFT CHECKLIST. EXAMINATION OF THE AIRCRAFT ALSO SHOWED THAT THE EMERGENCY BRAKING SYSTEM HAD NOT BEEN ACTIVATED ON THE ACCIDENT AIRCRAFT, AS SPECIFIED IN THE TAXI PROCEDURES, LOCATED IN SECTION III OF THE AIRCRAFT OPERATING MANUAL. THE TAXI PROCEDURES SPECIFY WHAT THE PILOT SHOULD OPERATE THE EMERGENCY BRAKE SYSTEM WHEN A HARD BRAKING CONDITION, OR A NO BRAKING CONDITION IS ENCOUNTERED. THE EMERGENCY BRAKE CONTROL IS LOCATED UNDER THE LEFT INSTRUMENT PANEL.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.