TKOF ABORTED WHEN AIRSPD AND OTHER INST READOUTS DON'T ADD UP WITH ACFT ABOUT TO LIFT OFF RWY.

Narrative

THE CAPT CALLED FOR THE FO TO INITIATE AN ABORTED TKOF DUE TO ERRONEOUS AIRSPD AND ALT INDICATIONS. THE ACFT WAS RETURNED TO THE GATE; THE PAX DEPLANED AND A POST-FLT ACCOMPLISHED. 3 PITOT TUBE COVERS WERE STILL IN PLACE. THE ORIGINAL PREFLT WAS ACCOMPLISHED BY THE FO; BUT WAS SEGMENTED DUE TO EXTREME COLD AND WIND CHILL. IT WAS THE FIRST TIME THIS FO HAD SEEN INTAKE AND EXHAUST COVERS INSTALLED WHICH HE REMOVED AND STOWED. THOSE COVERS WERE ORANGE AND HAD FLAGS ATTACHED. THE PITOT TUBE COVERS WERE SMALL; BLACK AND HAD NO FLAGS OR STREAMERS ATTACHED. THERE WAS NO MENTION OF PROP TIES OR COLD WX GEAR BEING INSTALLED IN THE LOGBOOK. THIS INCIDENT COULD HAVE BEEN PREVENTED BY A THOROUGH PREFLT BY THE FO. CONTRIBUTING FACTORS WERE: 1) EXTREME COLD AND WIND CHILL SEGMENTING THE PREFLT. 2) DISCOVERING AND STOWING COLD WX GEAR THAT WAS FOUND DURING PREFLT INTERRUPTING NORMAL FLOW. 3) NO FLAGS/STREAMERS OR RED/ORANGE COLOR OF PITOT TUBE COVERS. 4) NO LOGBOOK ENTRIES OF COLD WX GEAR BEING INSTALLED. 5) LACK OF FAMILIARITY OF PITOT TUBE COVERS; INTAKE AND EXHAUST COVERS. RECOMMENDATIONS WILL BE MADE THROUGH THE SAFETY REP TO: 1) INCORPORATE FAMILIARITY WITH ALL COLD WX GEAR IN INITIAL GND TRAINING. 2) INSTALL FLAGS/STREAMERS ON PITOT TUBE COVERS (OR AT LEAST COLOR THEM RED OR ORANGE). 3) ENSURE PROPER LOGBOOK ENTRIES ARE MADE WHEN COLD WX GEAR IS INSTALLED ON ACFT. SUPPLEMENTAL INFORMATION FROM ACN 259700: THE PLANE HAD BEEN SITTING FOR 48 HRS AND ALL PROTECTIVE COVERING HAD BEEN PUT ON ACFT. THE ACFT FELT NORMAL BUT THE AIRSPD INDICATED SLOW ACCELERATION. ALSO THE ALTIMETER STARTED A SLOW DSCNT. I GLANCED QUICKLY AT THE FO'S AND THE STANDBY INSTS TO SEE IF THEY INDICATED A PROB; AND COULD NOT TELL. THE ACFT THEN STARTED TRYING TO GET AIRBORNE WITH THE AIRSPD STILL SHOWING ABOUT 40 KTS BELOW V1.