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PA34 left engine lost power and began to run rough. When oil pressure dropped; the pilot declared emergency and landed at nearest airport.
| Attributes | |
| ACN | 751429 |
| Time | |
| Date | 200708 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzzz.airport |
| State Reference | FO |
| Altitude | msl single value : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | PA-34-200 Seneca I |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 9000 flight time type : 200 |
| ASRS Report | 751429 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : landed in emergency condition flight crew : diverted to another airport flight crew : declared emergency |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
I experienced a sudden loss of power and slight roughness in the left engine. After consulting the manufacturer's handbook I deduced the problem may have been a failed turbocharger. I applied the recommended procedures; executed a 180 degree turn (after clearance from ATC) and proceeded back to ZZZZ1. The engine began to run poorly and I decided to land at ZZZZ2. After a descent from 8000 ft to 6000 ft; the engine stabilized and even gained back a few inches of manifold pressure. I was only 10 mins further from ZZZZ1 so I elected to resume course to there. Not long after that; the oil pressure began to decline. I immediately declared an emergency and turned to the nearest airport. Approach acknowledged my emergency and cleared me as requested. Sometime during my descent and approach; they admonished me for descending below the MDA for that area. I replied that I was in an emergency situation and was landing this aircraft as quickly as possible. The landing and rollout were uneventful.
Original NASA ASRS Text
Title: PA34 LEFT ENG LOST POWER AND BEGAN TO RUN ROUGH. WHEN OIL PRESSURE DROPPED; THE PLT DECLARED EMER AND LANDED AT NEAREST ARPT.
Narrative: I EXPERIENCED A SUDDEN LOSS OF PWR AND SLIGHT ROUGHNESS IN THE L ENG. AFTER CONSULTING THE MANUFACTURER'S HANDBOOK I DEDUCED THE PROB MAY HAVE BEEN A FAILED TURBOCHARGER. I APPLIED THE RECOMMENDED PROCS; EXECUTED A 180 DEG TURN (AFTER CLRNC FROM ATC) AND PROCEEDED BACK TO ZZZZ1. THE ENG BEGAN TO RUN POORLY AND I DECIDED TO LAND AT ZZZZ2. AFTER A DSCNT FROM 8000 FT TO 6000 FT; THE ENG STABILIZED AND EVEN GAINED BACK A FEW INCHES OF MANIFOLD PRESSURE. I WAS ONLY 10 MINS FURTHER FROM ZZZZ1 SO I ELECTED TO RESUME COURSE TO THERE. NOT LONG AFTER THAT; THE OIL PRESSURE BEGAN TO DECLINE. I IMMEDIATELY DECLARED AN EMER AND TURNED TO THE NEAREST ARPT. APCH ACKNOWLEDGED MY EMER AND CLRED ME AS REQUESTED. SOMETIME DURING MY DSCNT AND APCH; THEY ADMONISHED ME FOR DSNDING BELOW THE MDA FOR THAT AREA. I REPLIED THAT I WAS IN AN EMER SITUATION AND WAS LNDG THIS ACFT AS QUICKLY AS POSSIBLE. THE LNDG AND ROLLOUT WERE UNEVENTFUL.
Data retrieved from NASA's ASRS site as of January 2009 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.