CHI94LA045 · Cessna 210B
Cessna 210B · Accident: in flight collision with terrain/water on approach
From Chicago Executive Airport (PWK) to Dubuque Regional Airport (DBQ)
Event
- NTSB case
- CHI94LA045
- 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
- 0 · 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
- Instrument Meteorological Cond
Cessna 210B
- Aircraft type
- Cessna 210
- 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
- N9684X
- Operator
- Perry J. Walton · private individual
- Onboard fatalities
- Unknown
- Route
- From Chicago Executive Airport (PWK), Wheeling, ILTo Dubuque Regional Airport (DBQ)
- 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
- Approach · IFR final approach
- 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
- Substantial
Cause areas
- Airframe › Ice
- Pilot in command › Flight into known adverse weather, performed
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PILOT RECEIVED A FULL WEATHER BRIEFING APPROXIMATELY FIVE AND A HALF HOURS BEFORE DEPARTURE, WHICH INCLUDED AN AIRMET FOR ICING CONDITIONS IN THE AREA. THIRTY MINUTES BEFORE TAKEOFF, HE RECEIVED A WEATHER UPDATE AND WAS GIVEN FOUR PIREPS ABOUT MODERATE TO SEVERE ICING CONDITIONS ALONG HIS ROUTE OF FLIGHT. HE REPORTED HEAVY ICING CONDITIONS DURING CRUISE AND EVENTUALLY ADVISED AIR TRAFFIC CONTROL THAT HE WAS UNABLE TO MAINTAIN ALTITUDE. THE PILOT WAS THEN CLEARED FOR THE ILS APPROACH. HE REPORTED THE AIRPLANE HAD TWO INCHES OF ICE ACCUMULATION AND WAS ACCUMULATING MORE. AFTER EXTENDING THE LANDING GEAR AT APPROXIMATELY 800 FEET AGL, THE PILOT WAS UNABLE TO MAINTAIN ALTITUDE ON THE ILS GLIDEPATH AND LANDED SHORT OF THE RUNWAY.
Probable cause
FLIGHT BY THE PILOT INTO KNOWN ICING CONDITIONS, WHICH RESULTED IN AIRFRAME ICING AND AN INABILITY OF THE AIRCRAFT TO MAINTAIN ALTITUDE ON THE ILS GLIDEPATH, ONCE THE LANDING GEAR WAS LOWERED. THE WEATHER CONDITIONS WERE RELATED FACTORS.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI94LA045
- Event ID
- 20001211X13832
- Case number
- CHI94LA045
- 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 1993-12-06.
- API snapshot SHA-256: e3da3ca00be4b8ae9eb3ee60f4a9f1ce848a69025c9d74edef94b2c940c0a913; retrieved 2026-09-21T14:06:34.874Z.