Narrative:

After a 1 1/2 hour layover in pittsburgh between flts, I returned to the aircraft, performed a walk around, found everything satisfactory and prepared for departure. On the takeoff roll a 'door' red warning panel light illuminated forcing me to abort takeoff. After returning to the gate, maintenance examined the aircraft emergency exit in question, taxi-checked the plane and signed off the write-up as good in the maintenance log. As we taxied out again, all cockpit indications were normal. On the takeoff roll the rwp light 'doors' illuminated again forcing me to abort again. The mechanics were tearing apart the computer panel when I left the aircraft. I found out later a recurrent ground school class had been using the doors for emergency exit removal practice during our break. They all appeared to be replaced correctly when I performed my walk around and they were all closed according to the door page on the multi functional display in the cockpit, as well as on the red warning panel. It was raining pretty hard during our break so I don't know if a sensor was affected by moisture or if there was a malfunctioning computer contributing to the problem. I feel that there was nothing more the crew or I could have done to avoid either rejected takeoff.

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Original NASA ASRS Text

Title: MDT ACFT HAD DOOR LIGHT ON THE RED WARNING PANEL DURING TKOF, ABORTED. FLC TAXIED BACK, MECHS CHKED IT AND SIGNED IT OFF. NEXT TKOF ROLL THE LIGHT CAME ON AGAIN WITH A RESULTING ABORT. ACFT TAKEN OTS FOR REPAIR. THE ACFT HAD BEEN USED FOR TRAINING AND EMER EXIT REMOVAL PRACTICE.

Narrative: AFTER A 1 1/2 HR LAYOVER IN PITTSBURGH BTWN FLTS, I RETURNED TO THE ACFT, PERFORMED A WALK AROUND, FOUND EVERYTHING SATISFACTORY AND PREPARED FOR DEP. ON THE TKOF ROLL A 'DOOR' RED WARNING PANEL LIGHT ILLUMINATED FORCING ME TO ABORT TKOF. AFTER RETURNING TO THE GATE, MAINT EXAMINED THE ACFT EMER EXIT IN QUESTION, TAXI-CHKED THE PLANE AND SIGNED OFF THE WRITE-UP AS GOOD IN THE MAINT LOG. AS WE TAXIED OUT AGAIN, ALL COCKPIT INDICATIONS WERE NORMAL. ON THE TKOF ROLL THE RWP LIGHT 'DOORS' ILLUMINATED AGAIN FORCING ME TO ABORT AGAIN. THE MECHS WERE TEARING APART THE COMPUTER PANEL WHEN I LEFT THE ACFT. I FOUND OUT LATER A RECURRENT GND SCHOOL CLASS HAD BEEN USING THE DOORS FOR EMER EXIT REMOVAL PRACTICE DURING OUR BREAK. THEY ALL APPEARED TO BE REPLACED CORRECTLY WHEN I PERFORMED MY WALK AROUND AND THEY WERE ALL CLOSED ACCORDING TO THE DOOR PAGE ON THE MULTI FUNCTIONAL DISPLAY IN THE COCKPIT, AS WELL AS ON THE RED WARNING PANEL. IT WAS RAINING PRETTY HARD DURING OUR BREAK SO I DON'T KNOW IF A SENSOR WAS AFFECTED BY MOISTURE OR IF THERE WAS A MALFUNCTIONING COMPUTER CONTRIBUTING TO THE PROB. I FEEL THAT THERE WAS NOTHING MORE THE CREW OR I COULD HAVE DONE TO AVOID EITHER REJECTED TKOF.

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.