NTSB Identification: MKC84FA114.
The docket is stored on NTSB microfiche number 24506.
Accident occurred Monday, April 02, 1984 in LITTLE ROCK, AR
Aircraft: CANADAIR CL-600 CHALLENGER, registration: N800CC
Injuries: 8 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT WAS ON AN FAA CERTIFICATION FLT (EXPERIMENTAL). DURING THE RECOVERY PHASE, A NON-TYPE RATED FAA PLT WAS IN THE L SEAT & THE PIC WAS IN THE R SEAT. WHILE DESCENDING, A DUCT FAIL LGT & A LEADING EDGE OVERHEAT LGT CAME ON. THE PIC TOOK CORRECTIVE ACTION. THE FAA PLT MADE AN ILS APCH TO RWY 22 WHICH WAS WET. THE APCH WAS MADE WITH THE L ENG AT HI IDLE. THE THRUST REVERSERS WERE NOT ARMED FOR THE LANDING. A TOUCHDOWN WAS MADE ABOUT 2000' DOWN THE RWY & SPOILERS WEREDEPLOYED. WHEN THE FAA PLT REALIZED HE DID NOT HAVE REVERSE THRUST, HE TRIED SLOWING THE ACFT WITH BRAKES; HOWEVER, THE L BRAKE WAS INOP. THE PIC TOOK CONTROL & CYCLED THE ANTI-SKID, BUT STILL HAD NO L BRAKING ACTION. SUBSEQUENTLY, THE ACFTRAN OFF THE END OF THE RWY & THE NOSE GEAR COLLAPSED IN MUDDY TERRAIN. AN INVESTIGATION REVEALED THAT DURING MAINTEN- ANCE, THE SPEED SENSOR HARNESSES FOR THE L MAIN GEAR WERE REVERSED WHICH ELIMINATED ANY BRAKING TO THE L BRAKE WHILE THE ANTI-SKID WAS ON.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

SUPERVISION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

THRUST REVERSER..NOT ENGAGED


Contributing Factors

CHECKLIST..NOT FOLLOWED


Contributing Factors

DIVERTED ATTENTION..COPILOT/SECOND PILOT


Contributing Factors

DIVERTED ATTENTION..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..TAILWIND



Contributing Factors

PROPER TOUCHDOWN POINT..NOT ATTAINED..COPILOT/SECOND PILOT



Contributing Factors

LANDING GEAR,ANTI-SKID BRAKE SYSTEM..INOPERATIVE


Contributing Factors

MAINTENANCE..IMPROPER..OTHER MAINTENANCE PERSONNEL


Contributing Factors

AIRPORT FACILITIES,RUNWAY/LANDING AREA CONDITION..WET


Contributing Factors

TERRAIN CONDITION..SOFT


Contributing Factors

TERRAIN CONDITION..WET

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