# Incident 20260728010989I: Cirrus Design Corp SR22, O'Neill, NE, July 28, 2026

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 28, 2026, 17:30 local time
- Place: O'Neill, NE
- Airport: The O'Neill Municipal-John L Baker
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 42.4694° N, 98.6878° W: Placed by OpenAirDocs at THE O'NEILL MUNI-JOHN L BAKER FLD (ONL), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4694&lon=-98.6878&mi=10
- Aircraft: N704R, registered now (https://openairdocs.org/aircraft/N704R) (OpenAirDocs)
- Registry model: Cirrus Design SR22 (registry code 2130001, https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Registry engine: Continental IO-550-N (registry code 17215, https://openairdocs.org/engine/continental-io-550-n) (OpenAirDocs)
- Reported make and model: CIRRUS DESIGN CORP SR22
- Reported engine: CONT MOTOR IO-550-N
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot
- Pilot flight hours: 3,100 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20260728010989I

## Narrative

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

-PILOT REPORTED RISING OIL TEMP WHILE IN CRUISE FLIGHT AT FL 011.  OIL TEMP INDICATION MAXED OUT AT 240 DEGREES.  PILOT REQUESTED CHANGE IN ALTITUDE TO FL 009.  OIL TEMP INDICATION WENT DOWN TO APPROXIMATELY 215 DEGREES FOR A SHORT TIME AND BEGAN TO CLIMB AGAIN.  PILOT REQUESTED DIVERT TO KONL.  THE ENGINE FAILED AND LOST POWER FORCING PILOT TO MAKE AN OFF-AIRPORT LANDING.

-TRAVELED TO KONL AND OBSERVED NO AIRCRAFT DAMAGE DUE TO OFF AIRPORT LANDING.

-REMOVED ENGINE COWL AND DETERMINED AIRCRAFT SUSTAINED CATASTROPHIC ENGINE FAILURE DUE TO AN UNKNOWN INTERNAL ISSUE.  THE CASE AREA BETWEEN #5 AND #6 CYLINDERS HAD A ROUGHLY BASEBALL SIZE HOLE IN IT.  ENGINE MODEL IO-550-N SERIAL NUMBER 690125.

-A CONNECTING ROD CAP WITH BOLTS STILL ATTACHED WAS LAYING ON TOP OF THE ENGINE.  THE CONNECTING ROD CAP AND BOLTS EXHIBITED MECHANICAL DAMAGE.

-A BROKEN SECTION OF PISTON RING WAS ON TOP OF THE ENGINE ALONG WITH A CONNECTING ROD BEARING.  THE BEARING HAD A STAMPED PART NUMBER ON IT.  AN INTERNET SEARCH DETERMINED THE BEARING PART NUMBER 642398 LISTED AS AN ENGINE MANUFACTURER BEARING.  THE FULL BEARING STAMP IS 05-06 112 642398 F

- THE CONNECTING ROD BEARING APPEARED TO EXHIBIT MINOR MECHANICAL DAMAGE AND NO DISCOLORATION.

-THE CRANKSHAFT JOURNAL APPEARED TO EXHIBIT NO MECHANICAL DAMAGE OR DISCOLORATION.

-THE ENGINE OIL PAN EXHIBITED MECHANICAL DAMAGE (DENTS) EXERTED FROM INTERIOR TO EXTERIOR SURFACE.  ADDITIONALLY, THE OIL PAN HAD APPROXIMATELY 3 HOLES PUNCHED THROUGH THE EXTERIOR SURFACE.

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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