Narrative:

During takeoff from clt the #2 main gear wheel assembly departed the aircraft. The only cockpit indication was a very momentary hesitation in the acceleration schedule. The separation occurred at approximately 100-110 KTS. The crew was not aware of the loss until advised by company via ACARS. Flight was continued to dtw where a low pass was made down 21C for confirmation of missing wheel, and was followed by a visual approach and landing on runway 21L. Landing was normal and uneventful and aircraft was taxied to the gate after inspection by ground emergency personnel. The aircraft in question had experienced an anti-skid problem earlier in the day. The logbook entry indicated that work had been performed on the #2 wheel anti-skid transducer, and all deficiencies were signed off. All crew preflight checks were normal including the anti-skid test, and no abnormalities were noted on the walk around by the first officer. Both pilots were amazed that a wheel could fall off without any significant indications in the cockpit, ie, vibration, faults, etc.

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Original NASA ASRS Text

Title: FLC OF MLG UNAWARE THEY HAD LOST A WHEEL OF THE ACFT ON TKOF UNTIL COMPANY ADVISED. FLT CONTINUED TO DTW FOR UNEVENTFUL LNDG.

Narrative: DURING TKOF FROM CLT THE #2 MAIN GEAR WHEEL ASSEMBLY DEPARTED THE ACFT. THE ONLY COCKPIT INDICATION WAS A VERY MOMENTARY HESITATION IN THE ACCELERATION SCHEDULE. THE SEPARATION OCCURRED AT APPROX 100-110 KTS. THE CREW WAS NOT AWARE OF THE LOSS UNTIL ADVISED BY COMPANY VIA ACARS. FLT WAS CONTINUED TO DTW WHERE A LOW PASS WAS MADE DOWN 21C FOR CONFIRMATION OF MISSING WHEEL, AND WAS FOLLOWED BY A VISUAL APCH AND LNDG ON RWY 21L. LNDG WAS NORMAL AND UNEVENTFUL AND ACFT WAS TAXIED TO THE GATE AFTER INSPECTION BY GND EMER PERSONNEL. THE ACFT IN QUESTION HAD EXPERIENCED AN ANTI-SKID PROBLEM EARLIER IN THE DAY. THE LOGBOOK ENTRY INDICATED THAT WORK HAD BEEN PERFORMED ON THE #2 WHEEL ANTI-SKID TRANSDUCER, AND ALL DEFICIENCIES WERE SIGNED OFF. ALL CREW PREFLT CHKS WERE NORMAL INCLUDING THE ANTI-SKID TEST, AND NO ABNORMALITIES WERE NOTED ON THE WALK AROUND BY THE FO. BOTH PLTS WERE AMAZED THAT A WHEEL COULD FALL OFF WITHOUT ANY SIGNIFICANT INDICATIONS IN THE COCKPIT, IE, VIBRATION, FAULTS, ETC.

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.