Skyhawk 172/Cutlass 172
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Commercial; Flight Crew Multiengine
Flight Crew Last 90 Days 150; Flight Crew Total 1000; Flight Crew Type 400
Situational Awareness; Distraction; Time Pressure
Aircraft Equipment Problem Critical
Flight Crew Diverted; Flight Crew Landed in Emergency Condition; General Declared Emergency
Aircraft
I was conducting a Part 61 instructional flight. There were three souls on board of the aircraft. The aircraft had about three hours of fuel left at the moment of the emergency; to the best of my knowledge. After one hour of flight; more or less; we conducted a normal descent to level off at 2;500 FT. Three to five seconds after we had increased the power back to normal cruise power setting; the aircraft started to vibrate severely. In addition; there was a drastic lost in power. I was able to maintain altitude. At that moment I declared an emergency and requested Approach to deviate to the nearest airport. After a couple of minutes the aircraft continued to lose power and I was unable to maintain altitude. It was at that moment that I as the Pilot in Command decided to make a precautionary landing on a road. This decision was made because of the fear of not making an airport runway; causing damage and injuries in the city.
A C172 instructor landed safely off airport after the aircraft developed severe vibrations and lost power.