Pilot of C172 on floats has near collision with boat crossing his landing path on short final.

Attributes
ACN	671145
Time
Date	200509
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 500
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 25 flight time total : 800 flight time type : 300
ASRS Report	671145
Person 2
Function	other personnel other
Events
Anomaly	conflict : ground critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : executed go around flight crew : took evasive action
Miss Distance	horizontal : 20 vertical : 300
Supplementary
Problem Areas	Airport Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

I was doing touch-and-goes on a pond. When on short final approach to the lake; a boat crossed from east to west directly in landing path causing evasive action on my part to throttle up and go around.

Original NASA ASRS Text

Title: PLT OF C172 ON FLOATS HAS NEAR COLLISION WITH BOAT XING HIS LNDG PATH ON SHORT FINAL.

Narrative: I WAS DOING TOUCH-AND-GOES ON A POND. WHEN ON SHORT FINAL APCH TO THE LAKE; A BOAT CROSSED FROM E TO W DIRECTLY IN LNDG PATH CAUSING EVASIVE ACTION ON MY PART TO THROTTLE UP AND GO AROUND.

Data retrieved from NASA's ASRS site as of January 2009 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.