CHI00LA053 · Piper PA-34-220T
Piper PA-34-220T · Accident: loss of control on ground/water during landing
From Northern Colorado Regional Airport (FNL) to Chandler Field (AXN)
Event
- NTSB case
- CHI00LA053
- 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
Piper PA-34-220T
- Aircraft type
- Piper PA-34
- 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
- N8417A
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Northern Colorado Regional Airport (FNL), FT COLLINS, COTo Chandler Field (AXN), MN
- 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
- Landing · landing roll
- 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
- Loss of control on ground/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
- Pilot in command › Directional control, not maintained
- Pilot in command › Flight into known adverse weather, encountered
- Pilot in command › In-flight planning/decision, inadequate
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
During landing rollout, the airplane veered off the snow-covered runway and impacted runway lights and a sign. The airplane's windshield had an 1/8-1/4 inch of ice accumulation. The pilot was issued a Center Weather Advisory (CWA) while en route to the destination airport. The CWA reported patchy severe mixed icing in clouds and precipitation with a chance of severe clear icing. The left and right side pilot windshields of a standard PA-34 were found to have rectangular areas of approximately 23 inches by 32 inches. The heated windshield plate area was approximately 3-1/2 inches by 7-1/2 inches.
Probable cause
The pilot's inadequate inflight decision to continue flight into icing conditions. An additional cause was the directional control not maintained by the pilot. Contributing factors were the viewable area of the aircraft's heated windshield panel, in-flight icing conditions, the snow covered runway, haze, runway edge lights and the runway sign.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI00LA053
- Event ID
- 20001212X20213
- Case number
- CHI00LA053
- 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: 2f622c173c2d9f12a96e51698de79e9b70f414f49e3c5deabd565236c45d07b9; retrieved 2026-09-22T13:31:18.141Z.