Narrative:

During takeoff roll, aircraft was damaged, apparently by wet snow thrown up by the main wheels. Runway surface was reported as 1/8-1/2 inches wet snow. However, the recent plowing of an intersecting runway left 2 ridges of 'wind roll' snow perpendicularly across our runway. We had just learned that these 'wind roll' ridges had been removed when we got 'position and hold.' another identical (company) aircraft departed before us on the same runway and reported no problems. Takeoff roll was normal. Just prior to rotation, the captain (at controls) spotted the snow ridges and initiated rotation 3-4 KTS early so that the nosewheel would clear the ridges, which it did. A fairly loud bang was heard as we simultaneously crossed the snow ridges and started liftoff (at normal liftoff speed). All engine, gear, hydraulic and pressurization indications were normal. So we continued the 1 hour flight to destination. Upon arrival, my post-flight inspection revealed damage to the left APU access door (rear of aircraft) as well as a missing APU intake fairing. Tail skid aft of APU and an antenna forward of APU were undamaged. Aircraft pitch attitude at rotation and liftoff were normal. Estimated height of snow ridges was 1 ft (note that they had rptedly been cleared).

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Original NASA ASRS Text

Title: ACR LGT ACFT STRUCK RIDGE OF BLOWN SNOW ICE DURING TKOF RESULTING IN ACFT DAMAGE.

Narrative: DURING TKOF ROLL, ACFT WAS DAMAGED, APPARENTLY BY WET SNOW THROWN UP BY THE MAIN WHEELS. RWY SURFACE WAS RPTED AS 1/8-1/2 INCHES WET SNOW. HOWEVER, THE RECENT PLOWING OF AN INTERSECTING RWY LEFT 2 RIDGES OF 'WIND ROLL' SNOW PERPENDICULARLY ACROSS OUR RWY. WE HAD JUST LEARNED THAT THESE 'WIND ROLL' RIDGES HAD BEEN REMOVED WHEN WE GOT 'POS AND HOLD.' ANOTHER IDENTICAL (COMPANY) ACFT DEPARTED BEFORE US ON THE SAME RWY AND RPTED NO PROBLEMS. TKOF ROLL WAS NORMAL. JUST PRIOR TO ROTATION, THE CAPT (AT CTLS) SPOTTED THE SNOW RIDGES AND INITIATED ROTATION 3-4 KTS EARLY SO THAT THE NOSEWHEEL WOULD CLR THE RIDGES, WHICH IT DID. A FAIRLY LOUD BANG WAS HEARD AS WE SIMULTANEOUSLY CROSSED THE SNOW RIDGES AND STARTED LIFTOFF (AT NORMAL LIFTOFF SPD). ALL ENG, GEAR, HYD AND PRESSURIZATION INDICATIONS WERE NORMAL. SO WE CONTINUED THE 1 HR FLT TO DEST. UPON ARR, MY POST-FLT INSPECTION REVEALED DAMAGE TO THE L APU ACCESS DOOR (REAR OF ACFT) AS WELL AS A MISSING APU INTAKE FAIRING. TAIL SKID AFT OF APU AND AN ANTENNA FORWARD OF APU WERE UNDAMAGED. ACFT PITCH ATTITUDE AT ROTATION AND LIFTOFF WERE NORMAL. ESTIMATED HEIGHT OF SNOW RIDGES WAS 1 FT (NOTE THAT THEY HAD RPTEDLY BEEN CLRED).

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.