20080514838169I

(-23) The aircraft operator was wanting to maintain his night currency by making three full stop night landings. He was able to make two successful landings,but on the third and final attempt he failed to lower his gear resulting in a gear up landing on runway 29 at ksjc at approximately 2245 local. Weather conditions were reported at 320 at 03KTS. Visibility of 10 miles with few scattered clouds at 16000. Pilot stated that he mentally always uses gump (gas-under carriage-mixture-prop) before landing. He says he was conscious of this for the first two landings but can not recall using it for the third. Pilot states he is going through a divorce and was mentally not prepared to fly. He knows he simply failed to lower the aircrafts gear. He says he normally flys the approach and landing with a little bit of power an speed and was surprised to hear what he thought was the stall warning. He immediately looked at the airspeed indicator and was confused because it indicated his normal speed for landing. He says you can not distinguish aurally between the stall warning and the gear not down warning.