Narrative:

During a visual approach into ktto, in marginal VFR, conditions, I was maneuvering to land at the airport, when the aircraft inadvertently entered a cloud and lost visual reference to the ground. Shortly after, the airport came into view. I proceeded to land uneventfully. Factors during the approach were the marginal conditions at the time, and the nighttime hours making the clouds difficult to see and avoid. In retrospect, even though the airport was reporting VFR, the combination of marginal conditions and darkness made the visual approach not the best option for getting into the airport.

Google
 

Original NASA ASRS Text

Title: PA31 VISUAL APCH TO TTO PASSES THROUGH CLOUD.

Narrative: DURING A VISUAL APCH INTO KTTO, IN MARGINAL VFR, CONDITIONS, I WAS MANEUVERING TO LAND AT THE ARPT, WHEN THE ACFT INADVERTENTLY ENTERED A CLOUD AND LOST VISUAL REF TO THE GND. SHORTLY AFTER, THE ARPT CAME INTO VIEW. I PROCEEDED TO LAND UNEVENTFULLY. FACTORS DURING THE APCH WERE THE MARGINAL CONDITIONS AT THE TIME, AND THE NIGHTTIME HRS MAKING THE CLOUDS DIFFICULT TO SEE AND AVOID. IN RETROSPECT, EVEN THOUGH THE ARPT WAS RPTING VFR, THE COMBINATION OF MARGINAL CONDITIONS AND DARKNESS MADE THE VISUAL APCH NOT THE BEST OPTION FOR GETTING INTO THE ARPT.

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.