Narrative:

On visual approach, put the gear down but as I was flying over the city building, I lost altitude and retracted the gear because I thought in case of engine failure, I would not reach the runway. As I circled to land on runway 25, I focused on the landing and forgot to put the gear down.

Google
 

Original NASA ASRS Text

Title: GA PLT HAS GEAR UP LNDG AT ROC.

Narrative: ON VISUAL APCH, PUT THE GEAR DOWN BUT AS I WAS FLYING OVER THE CITY BUILDING, I LOST ALT AND RETRACTED THE GEAR BECAUSE I THOUGHT IN CASE OF ENG FAILURE, I WOULD NOT REACH THE RWY. AS I CIRCLED TO LAND ON RWY 25, I FOCUSED ON THE LNDG AND FORGOT TO PUT THE GEAR DOWN.

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.