Engine failure forced a C150 pilot to land on a frozen lake. No damage or injuries.

Attributes
ACN	824533
Time
Date	200902
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	None
Component
Aircraft Component	Engine
Person 1
Function	Instructor Pilot Flying
Qualification	Flight Crew Flight Engineer Flight Crew Commercial Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 184 Flight Crew Total 14808 Flight Crew Type 700
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

While operating at cruise power setting in level flight for approximately 20 minutes; the cowl/engine began to vibrate excessively and without warning. The vibration was not gradual; but immediate. A turn toward the airport was initiated while at the same time we began to try and identify the cause. We reviewed the pilot operating handbook for rough engine operations. Unfortunately; the engine ran for only a short amount of time at approximately 1;000 RPM. Engine quit. We reviewed the pilot operating handbook for emergency landing without engine power. We were lucky to have the altitude to glide to a frozen lake. We made an emergency call with our location and malfunction and did receive an answer from an unknown source. We secured the aircraft close to shore.

Original NASA ASRS Text

Title: Engine failure forced a C150 pilot to land on a frozen lake. No damage or injuries.

Narrative: While operating at cruise power setting in level flight for approximately 20 minutes; the cowl/engine began to vibrate excessively and without warning. The vibration was not gradual; but immediate. A turn toward the airport was initiated while at the same time we began to try and identify the cause. We reviewed the Pilot Operating Handbook for rough engine operations. Unfortunately; the engine ran for only a short amount of time at approximately 1;000 RPM. Engine quit. We reviewed the Pilot Operating Handbook for emergency landing without engine power. We were lucky to have the altitude to glide to a frozen lake. We made an emergency call with our location and malfunction and did receive an answer from an unknown source. We secured the aircraft close to shore.

Data retrieved from NASA's ASRS site as of April 2012 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.