Narrative:

While troubleshooting the maximum airspeed warning system, I unfastened and pulled back the captain's instrument panel to verify the wiring at the captain's indicator. After verifying the wiring, I pushed the instrument panel back in place and removed the access panel to the warning 'clacker,' located below and left of the captain's instrument panel. After repairing a loose wire on the clacker, I verified the self-test function was now operable. I then left the aircraft to retrieve paperwork I had left in my vehicle. Upon returning to the aircraft, I closed up the panel covering the clacker, but did not notice that the instrument panel was only sitting in place and not fastened down. I then went to the ready room, signed off the logbook entry, and moved on to my next assignment. During taxi prior to the first flight that morning, the instrument panel backed out of its frame at less than 20 KTS ground speed, resulting in an aborted takeoff. The aircraft returned to the gate, the panel was secured, and the flight continued without further incident.

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Original NASA ASRS Text

Title: A DC9-30 REJECTED TKOF AT LESS THAN 20 KTS DUE TO CAPT'S INST PANEL FOUND NOT SECURED AFTER MAINT.

Narrative: WHILE TROUBLESHOOTING THE MAX AIRSPD WARNING SYS, I UNFASTENED AND PULLED BACK THE CAPT'S INST PANEL TO VERIFY THE WIRING AT THE CAPT'S INDICATOR. AFTER VERIFYING THE WIRING, I PUSHED THE INST PANEL BACK IN PLACE AND REMOVED THE ACCESS PANEL TO THE WARNING 'CLACKER,' LOCATED BELOW AND L OF THE CAPT'S INST PANEL. AFTER REPAIRING A LOOSE WIRE ON THE CLACKER, I VERIFIED THE SELF-TEST FUNCTION WAS NOW OPERABLE. I THEN LEFT THE ACFT TO RETRIEVE PAPERWORK I HAD LEFT IN MY VEHICLE. UPON RETURNING TO THE ACFT, I CLOSED UP THE PANEL COVERING THE CLACKER, BUT DID NOT NOTICE THAT THE INST PANEL WAS ONLY SITTING IN PLACE AND NOT FASTENED DOWN. I THEN WENT TO THE READY ROOM, SIGNED OFF THE LOGBOOK ENTRY, AND MOVED ON TO MY NEXT ASSIGNMENT. DURING TAXI PRIOR TO THE FIRST FLT THAT MORNING, THE INST PANEL BACKED OUT OF ITS FRAME AT LESS THAN 20 KTS GND SPD, RESULTING IN AN ABORTED TKOF. THE ACFT RETURNED TO THE GATE, THE PANEL WAS SECURED, AND THE FLT CONTINUED WITHOUT FURTHER INCIDENT.

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.