Partial engine failure in single engine aircraft causes pilot to land.

Attributes
ACN	437819
Time
Date	199905
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : owd.airport
State Reference	MA
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Cessna 152
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Person 1
Affiliation	company : corporate
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument pilot : multi engine pilot : cfi
Experience	flight time last 90 days : 181 flight time total : 1158 flight time type : 358
ASRS Report	437819
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	controller : provided flight assist flight crew : landed in emergency condition
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

I received partial power failure during flight. The engine kept intermitting. I called norwood tower and asked to come in for landing immediately. I landed safe with the engine still running, and taxied off the runway and taxied all the way to parking with the engine still running. I never thought fuel was an issue because I preflted the aircraft before takeoff and verified that both tanks were full, and I also drained the fuel and checked for any contamination in the fuel. I never declared an emergency, but I did treat the situation like an emergency. I was flying for 3 hours when engine started running rough. After landing, I did a runup check and everything seemed to be running well.

Original NASA ASRS Text

Title: PARTIAL ENG FAILURE IN SINGLE ENG ACFT CAUSES PLT TO LAND.

Narrative: I RECEIVED PARTIAL PWR FAILURE DURING FLT. THE ENG KEPT INTERMITTING. I CALLED NORWOOD TWR AND ASKED TO COME IN FOR LNDG IMMEDIATELY. I LANDED SAFE WITH THE ENG STILL RUNNING, AND TAXIED OFF THE RWY AND TAXIED ALL THE WAY TO PARKING WITH THE ENG STILL RUNNING. I NEVER THOUGHT FUEL WAS AN ISSUE BECAUSE I PREFLTED THE ACFT BEFORE TKOF AND VERIFIED THAT BOTH TANKS WERE FULL, AND I ALSO DRAINED THE FUEL AND CHKED FOR ANY CONTAMINATION IN THE FUEL. I NEVER DECLARED AN EMER, BUT I DID TREAT THE SIT LIKE AN EMER. I WAS FLYING FOR 3 HRS WHEN ENG STARTED RUNNING ROUGH. AFTER LNDG, I DID A RUNUP CHK AND EVERYTHING SEEMED TO BE RUNNING WELL.

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.