# Incident 20231005010489I: Partenavia Spa P.68C, St. Ignace, MI, October 5, 2023

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: October 5, 2023, 16:51 local time
- Place: St. Ignace, MI
- Airport: Mackinac County
- Damage: Minor damage
- Phase of flight: Taxi
- Operating rules: Air taxi and commuter (Part 135)
- Operator: 9FHA
- Location: 45.8914° N, 84.7381° W: Placed by OpenAirDocs at MACKINAC COUNTY (83D), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.8914&lon=-84.7381&mi=10
- Aircraft: N3927U, registered now (https://openairdocs.org/aircraft/N3927U) (OpenAirDocs)
- Registry model: Partenavia P.68C (registry code 6780105, https://openairdocs.org/model/partenavia-p-68c) (OpenAirDocs)
- Registry engine: Lycoming I0360 SER A&C (registry code 41511, https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (OpenAirDocs)
- Reported make and model: PARTENAVIA SPA P.68C
- Reported engine: LYCOMING I0360 SER A&C
- People aboard: 6
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot
- Pilot flight hours: 1,187 total, 691 in this make and model, 200 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20231005010489I

## Narrative

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

ON OCTOBER 5TH, 2023 AT APPROXIMATELY 1650 LOCAL TIME ^PRIVACY DATA OMITTED^A ^PRIVACY DATA OMITTED^ P68C OPERATED BY A 14 CFR PART 135 OPERATOR LOST ITS LEFT HAND GEAR DURING TAXI AFTER A SUCCESSFUL LANDING ON RUNWAY 25 AT SAINT IGNACE, MACKINAC COUNTY AIRPORT (83D).  THE FLIGHT ORIGINATED FROM MACKINAC ISLAND AIRPORT (MCD) WITH ONE PILOT (COMMERCIAL LICENSED) AND 5 PASSENGERS A NORMAL TAKE-OFF, FLIGHT, AND LANDING WERE PERFORMED, AND UPON SLOWING TO BELOW 5KTS THE PILOT CONDUCTED A RIGHT TURN AT THE END OF RUNWAY 25  TO ENTER THE PARALLEL TAXIWAY AND APPROXIMATELY 90DEG’S INTO THE TURN THE LEFT MAIN GEAR DEPARTED THE AIRCRAFT AND THE LEFT SIDE OF THE AIRCRAFT DROPPED TO THE GROUND ROTATING THE AIRCRAFT APPROXIMATELY 90 DEGREES BACK TO THE LEFT.   THE PILOT THEN PERFORMED EMERGENCY SHUTDOWN PROCEDURES OF BOTH ENGINES AND CONDUCTED AN EVACUATION OF PASSENGERS FROM THE AIRCRAFT.

POST-INCIDENT DETAILS:

THE AIRCRAFT WAS SITTING ON THE NOSE GEAR, RIGHT MAIN GEAR, AND LEFT SIDE OF THE FUSELAGE ALONG THE LEFT MAIN GEAR ATTACH POINT AND THE LEFT WING TIP.  LEFT ENGINE PROPELLER TIPS HAD LIGHTLY SCRAPPED/CONTACTED THE GROUND.   THE LEFT ELEVATOR WAS VERY CLOSE TO THE GROUND BUT NEVER CONTACTED.  THE LEFT GEAR ASSEMBLY WAS LAYING ON THE TAXIWAY APPROXIMATELY 3FT AFT OF ITS ATTACH POINT.  THE LEFT GEAR ATTACH FAIRING WAS RIPPED AND TORN IN SEVERAL PLACES DUE TO THE GEAR SLIDING OUT OF THE BOX ASSEMBLY THAT RETAINS IT.   INSPECTION OF THE LEFT GEAR ATTACH POINT BOLT AND CLEVIS FOUND THE NAS1106-24 BOLT AT SOME UNDETERMINED TIME HAD SHEARED DIRECTLY ABOVE THE LOWER SIDE OF THE CLEVIS OPENING AND UPON THIS LAST LANDING THE UPWARD VERTICAL FORCE OF LANDING ON THE GEAR WAS TRANSFERRED TO THE CLEVIS VIA A DOWNWARD FORCE AND THE CLEVIS WAS FORCED OPEN THUS RELEASING THE GEAR AND ALLOWING IT TO DEPART THE AIRCRAFT UPON THE 90 DEGREE TURN TO THE RIGHT.

POST-INCIDENT DETAILS:

THE AIRCRAFT WAS SITTING ON THE NOSE GEAR, RIGHT MAIN GEAR, AND LEFT SIDE OF THE FUSELAGE ALONG THE LEFT MAIN GEAR ATTACH POINT AND THE LEFT WING TIP.  LEFT ENGINE PROPELLER TIPS HAD LIGHTLY SCRAPPED/CONTACTED THE GROUND.   THE LEFT ELEVATOR WAS VERY CLOSE TO THE GROUND BUT NEVER CONTACTED.  THE LEFT GEAR ASSEMBLY WAS LAYING ON THE TAXIWAY APPROXIMATELY 3FT AFT OF ITS ATTACH POINT.  THE LEFT GEAR ATTACH FAIRING WAS RIPPED AND TORN IN SEVERAL PLACES DUE TO THE GEAR SLIDING OUT OF THE BOX ASSEMBLY THAT RETAINS IT.   INSPECTION OF THE LEFT GEAR ATTACH POINT BOLT AND CLEVIS FOUND THE NAS1106-24 BOLT AT SOME UNDETERMINED TIME HAD SHEARED DIRECTLY ABOVE THE LOWER SIDE OF THE CLEVIS OPENING AND UPON THIS LAST LANDING THE VERTICAL FORCE OF LANDING ON THE GEAR WAS TRANSFERRED TO THE CLEVIS VIA A DOWNWARD FORCE AND IT WAS FORCED OPEN THUS RELEASING THE GEAR AND ALLOWING IT TO DEPART THE AIRCRAFT UPON THE 90 DEGREE TURN TO THE RIGHT.

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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