Narrative:

On takeoff when throttles were advanced past 1.4 EPR and automatic throttles were engaged and went to takeoff power and the aircraft reached around 70 KTS IAS, a level 3 alert red light and warning bell came on, indicating a problem. I aborted takeoff and turned off next turnoff less than 1/4 of runway was used. When clearing runway, we recycled the control lock lever, since the annunciator showed this to be the problem. I applied little power while taxiing back to runway, again got control lock alert. Recycled again, recycled lift dumper switch, waited a few seconds and checked again with a small power application. All checked normal now, and I proceeded with a normal takeoff. I did not put any writeup in the logbook since I found only that the control lock lever needed to be recycled to clear a stuck microswitch. When any item in the electronic system shows a problem a whole slew of other items go immediately into alert modes giving all kinds of erroneous information. In my situation, I was able to calmly assess the problem, recycle the lever and switch and be back to normal. I never felt any safety compromised nor that maintenance could have done anything other than what I did. It's just one of those things, a stray electron, caught nicely.

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Original NASA ASRS Text

Title: ACR MLG TKOF ABORT WHEN THE FLC GOT A CTL LOCK WARNING ALERT AT THE START OF TKOF.

Narrative: ON TKOF WHEN THROTTLES WERE ADVANCED PAST 1.4 EPR AND AUTO THROTTLES WERE ENGAGED AND WENT TO TKOF PWR AND THE ACFT REACHED AROUND 70 KTS IAS, A LEVEL 3 ALERT RED LIGHT AND WARNING BELL CAME ON, INDICATING A PROBLEM. I ABORTED TKOF AND TURNED OFF NEXT TURNOFF LESS THAN 1/4 OF RWY WAS USED. WHEN CLRING RWY, WE RECYCLED THE CTL LOCK LEVER, SINCE THE ANNUNCIATOR SHOWED THIS TO BE THE PROBLEM. I APPLIED LITTLE PWR WHILE TAXIING BACK TO RWY, AGAIN GOT CTL LOCK ALERT. RECYCLED AGAIN, RECYCLED LIFT DUMPER SWITCH, WAITED A FEW SECONDS AND CHKED AGAIN WITH A SMALL PWR APPLICATION. ALL CHKED NORMAL NOW, AND I PROCEEDED WITH A NORMAL TKOF. I DID NOT PUT ANY WRITEUP IN THE LOGBOOK SINCE I FOUND ONLY THAT THE CTL LOCK LEVER NEEDED TO BE RECYCLED TO CLR A STUCK MICROSWITCH. WHEN ANY ITEM IN THE ELECTRONIC SYS SHOWS A PROBLEM A WHOLE SLEW OF OTHER ITEMS GO IMMEDIATELY INTO ALERT MODES GIVING ALL KINDS OF ERRONEOUS INFO. IN MY SITUATION, I WAS ABLE TO CALMLY ASSESS THE PROBLEM, RECYCLE THE LEVER AND SWITCH AND BE BACK TO NORMAL. I NEVER FELT ANY SAFETY COMPROMISED NOR THAT MAINT COULD HAVE DONE ANYTHING OTHER THAN WHAT I DID. IT'S JUST ONE OF THOSE THINGS, A STRAY ELECTRON, CAUGHT NICELY.

Data retrieved from NASA's ASRS site as of July 2007 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.