Narrative:

On takeoff at den runway 25, captain advanced throttles after cleared for takeoff. After checking stability, captain put throttles at flex detent, checked runway alignment and then noticed that FMA's had disappeared. Captain crosschecked first officer's and found hs FMA's were also gone. There were no warnings, ECAM messages or aural alerts. Captain asked first officer if he saw anything and first officer tried to engage automatic throttle button. No changed in FMA's. Captain tried going to toga thrust (if no flex temperature entered), but no change. Captain then aborted takeoff at about 100 KTS. Autobrakes worked and slowed aircraft, then were disengaged at 80 KTS. Crew cleared runway, notified tower, asked for assistance. We did not set parking brake. Instead, started APU and then shut down engines. Airplane had tires changes and was towed back to maintenance. Early morning flight. Supplemental information from acn 611281: a flaps 2 degree, flex takeoff was planned for runway 25. Speeds were 144, 144, 146 KTS. As the captain advanced power to flex takeoff, the appropriate FMA's did not appear on the pfd. The captain crosschecked my pfd to confirm there were no FMA's on my pfd. The captain advanced power to toga to see if the FMA's would appear. I noticed there was no light on in the autothrottle switch and attempted to get the light by pressing the autothrottle switch several times. There was no change to the FMA display. At this point, the captain announced his intentions to reject the takeoff and moved the power levers to idle. The announcement to reject was at about 100 KTS, with top speed reaching 110 KTS. At about 80 KTS, the captain asked me to deselect maximum brakes. I made a PA announcement for the passenger to remain seated. We taxied off the runway, started the APU, and shut down the engines in order to cool the brakes without having to set the parking brake. The arriving emergency vehicles informed us that all the tires were flat. Passenger were deplaned by air stairs and bussed back to the terminal. We departed with the passenger on another aircraft a couple of hours later. The human factors were an early departure from the west coast that morning on the first leg of the identify.

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Original NASA ASRS Text

Title: A320 CREW ABORTED TKOF AFTER THEY FOUND THE THRUST MGMNT SYS WOULD NOT ALLOW THEM TO CTL THE ENGS FROM THE THROTTLES.

Narrative: ON TKOF AT DEN RWY 25, CAPT ADVANCED THROTTLES AFTER CLRED FOR TKOF. AFTER CHKING STABILITY, CAPT PUT THROTTLES AT FLEX DETENT, CHKED RWY ALIGNMENT AND THEN NOTICED THAT FMA'S HAD DISAPPEARED. CAPT XCHKED FO'S AND FOUND HS FMA'S WERE ALSO GONE. THERE WERE NO WARNINGS, ECAM MESSAGES OR AURAL ALERTS. CAPT ASKED FO IF HE SAW ANYTHING AND FO TRIED TO ENGAGE AUTO THROTTLE BUTTON. NO CHANGED IN FMA'S. CAPT TRIED GOING TO TOGA THRUST (IF NO FLEX TEMP ENTERED), BUT NO CHANGE. CAPT THEN ABORTED TKOF AT ABOUT 100 KTS. AUTOBRAKES WORKED AND SLOWED ACFT, THEN WERE DISENGAGED AT 80 KTS. CREW CLRED RWY, NOTIFIED TWR, ASKED FOR ASSISTANCE. WE DID NOT SET PARKING BRAKE. INSTEAD, STARTED APU AND THEN SHUT DOWN ENGS. AIRPLANE HAD TIRES CHANGES AND WAS TOWED BACK TO MAINT. EARLY MORNING FLT. SUPPLEMENTAL INFO FROM ACN 611281: A FLAPS 2 DEG, FLEX TKOF WAS PLANNED FOR RWY 25. SPDS WERE 144, 144, 146 KTS. AS THE CAPT ADVANCED PWR TO FLEX TKOF, THE APPROPRIATE FMA'S DID NOT APPEAR ON THE PFD. THE CAPT XCHKED MY PFD TO CONFIRM THERE WERE NO FMA'S ON MY PFD. THE CAPT ADVANCED PWR TO TOGA TO SEE IF THE FMA'S WOULD APPEAR. I NOTICED THERE WAS NO LIGHT ON IN THE AUTOTHROTTLE SWITCH AND ATTEMPTED TO GET THE LIGHT BY PRESSING THE AUTOTHROTTLE SWITCH SEVERAL TIMES. THERE WAS NO CHANGE TO THE FMA DISPLAY. AT THIS POINT, THE CAPT ANNOUNCED HIS INTENTIONS TO REJECT THE TKOF AND MOVED THE PWR LEVERS TO IDLE. THE ANNOUNCEMENT TO REJECT WAS AT ABOUT 100 KTS, WITH TOP SPD REACHING 110 KTS. AT ABOUT 80 KTS, THE CAPT ASKED ME TO DESELECT MAX BRAKES. I MADE A PA ANNOUNCEMENT FOR THE PAX TO REMAIN SEATED. WE TAXIED OFF THE RWY, STARTED THE APU, AND SHUT DOWN THE ENGS IN ORDER TO COOL THE BRAKES WITHOUT HAVING TO SET THE PARKING BRAKE. THE ARRIVING EMER VEHICLES INFORMED US THAT ALL THE TIRES WERE FLAT. PAX WERE DEPLANED BY AIR STAIRS AND BUSSED BACK TO THE TERMINAL. WE DEPARTED WITH THE PAX ON ANOTHER ACFT A COUPLE OF HRS LATER. THE HUMAN FACTORS WERE AN EARLY DEP FROM THE WEST COAST THAT MORNING ON THE FIRST LEG OF THE IDENT.

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.