Instructor and student pilots aboard a cessna 172 made an emergency return to their takeoff airport ...

Attributes
ACN	838693
Time
Date	200905
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	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	None
Flight Plan	None
Component
Aircraft Component	Engine
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial
Experience	Flight Crew Last 90 Days 160 Flight Crew Total 700 Flight Crew Type 35
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

I was going to practice touch-and-goes with my student. Runway 33 was in use and no one was flying in the traffic pattern at this time. After second touch-and-go on the climb out at about 600 ft AGL I started to feel vibrations. I cross-checked the engine instruments and I saw that the oil pressure and oil temperature gauges were on green but the engine RPM was dropping and vibrations were escalating. I took over the controls; while turning right crosswind; reducing power to idle; making sure that primer was locked and requested landing on runway 15 due to engine problems. We received the current wind information and clearance to land on runway 15 from the tower. Landing was uneventful. We vacated the runway. Engine was running really rough. We had to turn the magnetos to off position in order to turn the engine off.

Original NASA ASRS Text

Title: Instructor and student pilots aboard a Cessna 172 made an emergency return to their takeoff airport when the engine began to run rough and lose power.

Narrative: I was going to practice touch-and-goes with my student. Runway 33 was in use and no one was flying in the traffic pattern at this time. After second touch-and-go on the climb out at about 600 FT AGL I started to feel vibrations. I cross-checked the engine instruments and I saw that the oil pressure and oil temperature gauges were on green but the engine RPM was dropping and vibrations were escalating. I took over the controls; while turning right crosswind; reducing power to idle; making sure that primer was locked and requested landing on Runway 15 due to engine problems. We received the current wind information and clearance to land on Runway 15 from the tower. Landing was uneventful. We vacated the runway. Engine was running really rough. We had to turn the magnetos to off position in order to turn the engine off.

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.

Instructor and student pilots aboard a cessna 172 made an emergency return to their takeoff airport when the engine began to run rough and lose power.