Narrative:

We were performing a rolling takeoff. I guided the aircraft to the centerline with the tiller; and with the engines spooled up; I handed control to the first officer; the PF. He requested the autothrottles on; and as the engines came up to takeoff power; he exclaimed 'I've lost it....' I noted no unusual annunciator lights and the engine instruments were all normal. He then indicated that his rudder pedals had slipped forward. I took control of the aircraft and initiated a low speed (less than 80 KTS) abort and cleared the runway. The second takeoff attempt was uneventful. Supplemental information from acn 742967: first officer rolling takeoff. When I received the aircraft from captain; I applied rudder and felt the pedals moved easily to the floor with no response. Captain executed the aborted takeoff procedure below 80 KTS. After clearing the runway; I readjusted the rudder pedals and they worked fine. We went back in line and flight proceeded normally.

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Original NASA ASRS Text

Title: AN MD80 FO'S RUDDER PEDALS MOVED FULL FWD AT TKOF INITIATION. THE TKOF WAS REJECTED; AND THE RUDDERS ADJUSTED FOLLOWED BY A NORMAL TKOF.

Narrative: WE WERE PERFORMING A ROLLING TKOF. I GUIDED THE ACFT TO THE CTRLINE WITH THE TILLER; AND WITH THE ENGS SPOOLED UP; I HANDED CTL TO THE FO; THE PF. HE REQUESTED THE AUTOTHROTTLES ON; AND AS THE ENGS CAME UP TO TKOF PWR; HE EXCLAIMED 'I'VE LOST IT....' I NOTED NO UNUSUAL ANNUNCIATOR LIGHTS AND THE ENG INSTS WERE ALL NORMAL. HE THEN INDICATED THAT HIS RUDDER PEDALS HAD SLIPPED FORWARD. I TOOK CTL OF THE ACFT AND INITIATED A LOW SPD (LESS THAN 80 KTS) ABORT AND CLRED THE RWY. THE SECOND TKOF ATTEMPT WAS UNEVENTFUL. SUPPLEMENTAL INFO FROM ACN 742967: FO ROLLING TKOF. WHEN I RECEIVED THE ACFT FROM CAPT; I APPLIED RUDDER AND FELT THE PEDALS MOVED EASILY TO THE FLOOR WITH NO RESPONSE. CAPT EXECUTED THE ABORTED TKOF PROC BELOW 80 KTS. AFTER CLRING THE RWY; I READJUSTED THE RUDDER PEDALS AND THEY WORKED FINE. WE WENT BACK IN LINE AND FLT PROCEEDED NORMALLY.

Data retrieved from NASA's ASRS site as of January 2009 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.