Small aircraft sel power loss causing pilot to land at once during IFR approach training.

Attributes
ACN	288960
Time
Date	199411
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : day
State Reference	OH
Altitude	agl bound lower : 500 agl bound upper : 500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : day
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing : missed approach
Flight Plan	IFR
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : commercial pilot : cfi pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 950 flight time type : 400
ASRS Report	288969
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	aircraft equipment problem : critical incursion : landing without clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

After completing an ASR approach into ffo and being cleared for the option, the missed approach was initiated. However, the engine was rough and producing only 2100 RPM. A decision was made to call tower and ask to return for an immediate landing due to a rough engine. We were cleared for the landing which was uneventful. It was raining at the time and after further inspection by a mechanic, water was found in the left magneto.

Original NASA ASRS Text

Title: SMA SEL PWR LOSS CAUSING PLT TO LAND AT ONCE DURING IFR APCH TRAINING.

Narrative: AFTER COMPLETING AN ASR APCH INTO FFO AND BEING CLRED FOR THE OPTION, THE MISSED APCH WAS INITIATED. HOWEVER, THE ENG WAS ROUGH AND PRODUCING ONLY 2100 RPM. A DECISION WAS MADE TO CALL TWR AND ASK TO RETURN FOR AN IMMEDIATE LNDG DUE TO A ROUGH ENG. WE WERE CLRED FOR THE LNDG WHICH WAS UNEVENTFUL. IT WAS RAINING AT THE TIME AND AFTER FURTHER INSPECTION BY A MECH, WATER WAS FOUND IN THE L MAGNETO.

Data retrieved from NASA's ASRS site as of July 2007 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.