The pilot of a GA aircraft reported that the engine failed in flight.

Attributes
ACN	1551789
Time
Date	201806
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Engine
Person 1
Function	Single Pilot
Qualification	Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Engineer
Experience	Flight Crew Last 90 Days 85 Flight Crew Total 19780 Flight Crew Type 29
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown

Narrative:

Returning to ZZZ after experience engine malfunction; suffered complete engine failure and subsequently was forced to land [off-airport]. Aircraft lost left main landing gear and the tailwheel during landing then skidded in the water. I suspected a possible fire and evacuated after securing all sources of ignition and fuel. No fire noted and no injuries occurred. After review of all contributing factors; I'm unable to see any potential actions or factors that could have prevented this event. I suspect a failure of the oil pump based on the pre failure indications and characteristics.

Original NASA ASRS Text

Title: The pilot of a GA aircraft reported that the engine failed in flight.

Narrative: Returning to ZZZ after experience engine malfunction; suffered complete engine failure and subsequently was forced to land [off-airport]. Aircraft lost left main landing gear and the tailwheel during landing then skidded in the water. I suspected a possible fire and evacuated after securing all sources of ignition and fuel. No fire noted and no injuries occurred. After review of all contributing factors; I'm unable to see any potential actions or factors that could have prevented this event. I suspect a failure of the oil pump based on the pre failure indications and characteristics.

Data retrieved from NASA's ASRS site 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.