CHI90DEM08 · Cessna 150L
Cessna 150L · Accident: in flight collision with terrain/water
From C19 · Holland, MI to an unrecorded destination
Event
- NTSB case
- CHI90DEM08
- 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
- 2 · 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
Cessna 150L
- Aircraft type
- Cessna 150
- 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
- N741MF
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From C19 · Holland, MITo not recorded
- 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
- Unknown
- 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
- In flight collision with terrain/water
- 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
- Reason for occurrence undetermined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PLT & PSGR DEPD ON A LOCAL FLT AT NIGHT IN CLEAR WX CONDS. AFTER ABOUT 15 MIN OF FLT, THE ACFT CRASHED IN LAKE MICHIGAN, ABOUT 1 MI FROM THE SHORELINE. A WITNESS SAID HE SAW THE LIGHTS OF AN ACFT FLYING AT LOW ALT IN THAT AREA, WHICH HAD DISAPPEARED FROM HIS VIEW. ABOUT 2 DAYS LATER, WRECKAGE OF THE ACFT WAS FOUND IN ABOUT 50' OF WATER. THE PSGR WAS STILL STRAPPED IN THE ACFT. THE PLT'S BODY WAS FOUND ON 8/18/90 AFTER IT HAD WASHED ONTO THE SHORE. NO PREIMPACT PART FAILURE OR MALFUNCTION OF THE ACFT WAS FOUND. THERE WAS EVIDENCE THAT BOTH OCCUPANTS HAD DIED FROM DROWNING. TOXICOLOGY CHECKS SHOWED THE PLT'S BLOOD HAD A CARBOXYHEMOGLOBIN (CARBON MONOXIDE) SATURATION OF 21%, WHILE THE PSGR'S BLOOD HAD ONLY A 7% SATURATION LEVEL. (SMOKERS CAN BE EXPECTED TO HAVE A SATURATION LEVEL OF 3% TO 10%.) NO MALFUNCTION OR FAILURE OF THE ACFT WAS FOUND THAT WOULD HAVE RESULTED IN THE ELEVATED LEVEL(S) OF CARBON MONOXIDE.
Probable cause
UNDETERMINED. FACTORS RELATED TO THE ACCIDENT WERE: DARKNESS & IMPAIRMENT OF THE PILOT DUE TO CARBON MONOXIDE.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI90DEM08
- Event ID
- 20001212X23914
- Case number
- CHI90DEM08
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 1990-08-07.
- API snapshot SHA-256: 4158bd55d13060258f06558aa3e5e1ab7fec96407e6eccaa51b3e421b397fdae; retrieved 2026-09-21T02:23:35.427Z.