C140 pilot reported engine losing power and landing off-airport.

Attributes
ACN	1582394
Time
Date	201809
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Cessna 140
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	None
Component
Aircraft Component	Engine
Person 1
Function	Single Pilot
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 1500 Flight Crew Type 70
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Engine lost RPM's during flight to ZZZ. Could not maintain altitude. [Notified ATC]. Was in contact with [TRACON]. Landed in a hayfield with no injury and no damage to aircraft.

Original NASA ASRS Text

Title: C140 pilot reported engine losing power and landing off-airport.

Narrative: Engine lost RPM's during flight to ZZZ. Could not maintain altitude. [Notified ATC]. Was in contact with [TRACON]. Landed in a hayfield with no injury and no damage to aircraft.

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.