Narrative:

At V1 felt small bump. Rotated at vr. With positive rate of climb first officer noted that left main landing gear green light was out and left main gear red unsafe gear light was on. Asked for 3000 ft for final altitude and vectors in the local area until damage could be assessed. Did not raise gear. Visual inspection of gear down lock indicator showed gear was down and locked. Ground personnel at airport reported that a main gear tire cap was found on the departure runway. Unable to assess if there was any further damage to aircraft, prepared cabin for an emergency landing. Landing accomplished without incident.

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Original NASA ASRS Text

Title: A DC9 IN A NIGHT TKOF LOSES 1 RECAP OFF 1 MAIN L TIRE. EMER DECLARED AND ACFT RETURN LAND..

Narrative: AT V1 FELT SMALL BUMP. ROTATED AT VR. WITH POSITIVE RATE OF CLB FO NOTED THAT L MAIN LNDG GEAR GREEN LIGHT WAS OUT AND L MAIN GEAR RED UNSAFE GEAR LIGHT WAS ON. ASKED FOR 3000 FT FOR FINAL ALT AND VECTORS IN THE LCL AREA UNTIL DAMAGE COULD BE ASSESSED. DID NOT RAISE GEAR. VISUAL INSPECTION OF GEAR DOWN LOCK INDICATOR SHOWED GEAR WAS DOWN AND LOCKED. GND PERSONNEL AT ARPT RPTED THAT A MAIN GEAR TIRE CAP WAS FOUND ON THE DEP RWY. UNABLE TO ASSESS IF THERE WAS ANY FURTHER DAMAGE TO ACFT, PREPARED CABIN FOR AN EMER LNDG. LNDG ACCOMPLISHED WITHOUT INCIDENT.

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.