# Accident 20170715006939A: Tecnam P92 EAGLET, Stevensville, MD, July 15, 2017

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 15, 2017, 16:15 local time
- Place: Stevensville, MD
- Airport: Bay Bridge Airport
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: General operating rules (Part 91)
- Operator: KW29
- Location: 38.9764° N, 76.3300° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=38.9764&lon=-76.3300&mi=10
- Aircraft: N561TU, a cancelled registration (https://openairdocs.org/deregistered/N561TU-2018-01-17) (OpenAirDocs)
- Registry model: Costruzioni Aeronautiche Tecna P92 EAGLET (registry code 0600045, https://openairdocs.org/model/costruzioni-aeronautiche-tecna-p92-eaglet) (OpenAirDocs)
- Registry engine: Rotax 912UL2 (registry code 55574, https://openairdocs.org/engine/rotax-912ul2) (OpenAirDocs)
- Reported make and model: TECNAM P92 EAGLET
- Reported engine: ROTAX 912ULS2-01
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 4,625 total
- NTSB investigation: [NTSB ERA17LA246](https://openairdocs.org/ntsb/ERA17LA246) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20170715006939A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON 07/12/2017, PT AVIATION LLC, BOUGHT A TECNAM P92 AIRCRAFT, N561TU S/N 1561 FROM COSTRUZIONI AERONAUTICHE LOCATED IN APOPKA FLORIDA. THIS AIRCRAFT WAS FLOWN TO BAY BRIDGE AIRPORT (W29), MD ON JULY 13TH 2017.

ON 07/15/2017 AT APPROXIMATELY 0900, PILOTS ^PRIVACY DATA OMITTED^ DEPARTED BAY BRIDGE AIRPORT FOR SHREWSBURY, SHOESTRING AIRPORT (0P2), PA ON A PERSONAL TRIP, AND ARRIVED AT APPROXIMATELY 1000. AFTER CONDUCTING BUSINESS THEY DEPARTED (0P2) AT 15:20 FOR  (W29). ON THE RETURN TRIP ^PRIVACY DATA OMITTED^ WAS THE PILOT IN CONTROL AS THE AIRCRAFT ENTERED THE PATTERN TO LAND ON RUNWAY 29 AT (W29). SHE SWITCHED FROM POTOMAC TRACON TO UNICOM AND ENTERED THE DOWN WIND LEG,  AND THE POWER ON THE AIRCRAFT WAS REDUCED SLIGHTLY AT THE WATER TOWER MARKER. AT APPROXIMATELY 90 KNOTS AND 3/4 OF THE WAY ON THE DOWNLEG THE ENGINE BEGAN TO RUN ROUGH. AT THIS POINT ^PRIVACY DATA OMITTED^ TOOK OVER THE CONTROLS, AND ^PRIVACY DATA OMITTED^ BEGAN TO MONITOR THE ENGINE MONITOR (EMS) PAGE FOR ABNORMALITIES. THE READING ON THE GAUGES WERE NORMAL. THE POWER WAS RAPIDLY REDUCING AND A DECISION WAS MADE TO CUT SHORT THE DOWNWIND RUN AND HEAD TO THE AIRPORT. AS THE AIRCRAFT WAS BEING SET-UP AND POSITION TO LAND, THE ENGINE STOPPED COMPLETELY. A RESTART OF THE ENGINE FAILED AND A DECISION WAS MADE TO LAND IN AN AREA SOUTH OF A CONSTRUCTION AREA ON THE SOUTH WEST SIDE OF THE AIRPORT. IN LANDING, THE AIRCRAFT IMPACTED A BERM ON IMPACT AND STOPPED ACROSS ANOTHER. THIS ACTION CAUSED THE NOSE LANDING GEAR TO BE TORN-OFF, THE RIGHT MAIN GEAR BENT AND PUSH TO THE LEFT MAIN GEAR AREA, AND THE LEFT MAIN GEAR SIGNIFICANTLY DAMAGED. THE ENGINE SHIFTED COMPLETELY TO THE LEFT IN THE ENGINE BAY, THE PROPELLER BROKEN, WINGS DAMAGED AND BUCKED, AND OTHER OBVIOUS STRUCTURAL DAMAGE.

WEATHER CONDITIONS: TEMP 86 DEG F, DEW POINT 68 DEG F, HUM 55%, WIND NW AT 4.6 MPH, CLEAR

09/07/2017

WE EXAMINED THE ENGINE FROM N561TU TODAY AND FOUND EVIDENCE OF OIL STARVATION, A HOLE IN THE N0.1 PISTON HEAD, A DAMAGED VALVE, AND ENGINE SEIZURE.

IT APPEARS THAT THE OIL SYSTEM THERMOSTAT MAY BE CLOGGED, OR MAY HAVE MALFUNCTIONED.

OIL WAS FOUND IN THE TANK, AND THE LINE LEADING FROM THE TANK TO THE THERMOSTAT, BUT NO OIL WAS FOUND IN THE LINE FROM THE THERMOSTAT TO THE OIL PUMP (THE LINE WAS COMPLETELY DRY).

EXAMINATION OF THE OIL LINES, AND OIL COOLER DID NOT REVEAL ANY BLOCKAGES, AND THE OIL PUMP WAS FUNCTIONAL. THIS PART WAS SENT OUT FOR EVALUATION.

A REQUEST WAS MADE TO OBTAIN DESIGN INFORMATION FOR THIS COMPONENT (DRAWINGS, SPECIFICATIONS, OPERATING DESCRIPTION, ETC.).

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA17LA246](https://openairdocs.org/ntsb/ERA17LA246), Jul 15, 2017: Costruzioni Aeronautiche Tecna P92 Eaglet (N561TU), Stevensville, MD, substantial damage. Probable cause: The fatigue failure of an exhaust valve spring retainer due to air trapped in the lubrication system, which resulted in a total loss of engine power.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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