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A C310 during a training flight on rotation for a touch-and- go landing had the left engine fail caused by an improperly installed engine starter.
| Attributes | |
| ACN | 377340 |
| Time | |
| Date | 199708 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 100 agl bound upper : 100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz tracon : mci |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | landing other other other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | pilot : instrument pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 300 flight time total : 1200 flight time type : 225 |
| ASRS Report | 377340 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot instruction : trainee |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
ATP student under instruction was attempting a touch-and- go after being instructed the day before by me not to do touch-and-goes in a twin. On rotation the manifold pressure on the left engine was seen to rise and the RPM's dropped. The left propeller was seen to slow down and was immediately pulled to feather. The student was instructed to retract the gear and a climb out was initiated. The tower was informed of the situation and no assistance was required. We returned to the airport and landed. On parking, a large amount of oil was seen under the engine. The aircraft had had a new starter fitted the day before. The a&P had forgotten to replace 2 nuts, and a plug close to the magnetos had come loose in flight. This had allowed a cog to drop off inside the engine, cutting off the magnetos and allowing the oil to drain from the engine. Although we did not feel that there was any emergency situation, for us (as pilots) we were in control at all times of the aircraft. We knew that the recommended procedure for a loss of engine is to declare an emergency.
Original NASA ASRS Text
Title: A C310 DURING A TRAINING FLT ON ROTATION FOR A TOUCH-AND- GO LNDG HAD THE L ENG FAIL CAUSED BY AN IMPROPERLY INSTALLED ENG STARTER.
Narrative: ATP STUDENT UNDER INSTRUCTION WAS ATTEMPTING A TOUCH-AND- GO AFTER BEING INSTRUCTED THE DAY BEFORE BY ME NOT TO DO TOUCH-AND-GOES IN A TWIN. ON ROTATION THE MANIFOLD PRESSURE ON THE L ENG WAS SEEN TO RISE AND THE RPM'S DROPPED. THE L PROP WAS SEEN TO SLOW DOWN AND WAS IMMEDIATELY PULLED TO FEATHER. THE STUDENT WAS INSTRUCTED TO RETRACT THE GEAR AND A CLBOUT WAS INITIATED. THE TWR WAS INFORMED OF THE SIT AND NO ASSISTANCE WAS REQUIRED. WE RETURNED TO THE ARPT AND LANDED. ON PARKING, A LARGE AMOUNT OF OIL WAS SEEN UNDER THE ENG. THE ACFT HAD HAD A NEW STARTER FITTED THE DAY BEFORE. THE A&P HAD FORGOTTEN TO REPLACE 2 NUTS, AND A PLUG CLOSE TO THE MAGNETOS HAD COME LOOSE IN FLT. THIS HAD ALLOWED A COG TO DROP OFF INSIDE THE ENG, CUTTING OFF THE MAGNETOS AND ALLOWING THE OIL TO DRAIN FROM THE ENG. ALTHOUGH WE DID NOT FEEL THAT THERE WAS ANY EMER SIT, FOR US (AS PLTS) WE WERE IN CTL AT ALL TIMES OF THE ACFT. WE KNEW THAT THE RECOMMENDED PROC FOR A LOSS OF ENG IS TO DECLARE AN EMER.
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.