MKC85FA168 · Schubert CASSUTT SPORT CASSUTT SP
Schubert CASSUTT SPORT CASSUTT SP · Accident: partial loss of engine power (mechanical failure) en route
From EWT · Newton, KS to Wittman Regional Airport (OSH)
Event
- NTSB case
- MKC85FA168
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 1 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Schubert CASSUTT SPORT CASSUTT SP
- Aircraft type
- Schubert CASSUTT SPORT
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N1115G
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From EWT · Newton, KSTo Wittman Regional Airport (OSH), Oshkosh, WI
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- En route · cruise
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Partial loss of engine power (mechanical failure)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Engine assembly, crankcase › Overload
- Engine assembly, piston › Disintegrated
- Engine assembly, valve, intake › Failure, total
- Fluid, oil › Siphoning
- Pilot in command › Visual lookout, not possible
- Window, flight compartment window/windshield › Disintegrated
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
AT 0847 CDT, JULY 27, 1985 N1115G RADIOED A NEARBY FSS. THE STATION THAT WAS CALLED WAS CLOSED BUT ANOTHER FSS HEARD THECALL. DURING THE TRANSMISSION THE PLT REPORTED THAT HE HAD AN ENG PROBLEM, WAS PUMPING OIL OVERBOARD AND COULD NOT SEE OUTSIDE BECAUSE THE CANOPY WAS COVERED WITH OIL. THE ACFT CRASHED IN A PASTURE IN A STEEP NOSE DOWN ATTITUDE. THE ON-SCENE INVESTIGATION REVELAED A HOLE IN THE TOP OF THE CRANKCASE. DISASSEMBLY OF THE ENGINE REVEALED THAT THE #4 INTAKE VALVE WAS BROKEN AND THE #4 PISTON WAS DISINTEGRATED.THE DESIGN OF THE CANOPY IS SUCH THAT IF IT WAS OPENED IN FLT THE PLT WOULD BE EXPOSED TO THE FULL FORCE OF THE WIND.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record MKC85FA168
- Event ID
- 20001214X37207
- Case number
- MKC85FA168
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: edcc9c4774db42770552cf1a64621e9a2e952b9b636aac17d13282fcd6ec38e1; retrieved 2026-09-21T04:55:07.974Z.