CEN13CA005 · Piper PA-24-250
Six One Papa Piper PA-24-250 · Accident: structural icing en route
From St Louis Downtown Airport (CPS) to Meadow Lake Airport (FLY)
Event
- NTSB case
- CEN13CA005
- 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
- Unknown
- 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
Piper PA-24-250
- Aircraft type
- Piper PA-24
- 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
- N6661P
- Operator
- Six One Papa
- Onboard fatalities
- Unknown
- Route
- From St Louis Downtown Airport (CPS), Cahokia, ILTo Meadow Lake Airport (FLY), Colorado Springs, CO
- 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
- Defining eventThe 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
- Structural icing
- 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
- Aircraft › Aircraft oper/perf/capability
- Environmental issues › Conditions/weather/phenomena
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
An air traffic controller provided the pilot with an altitude at which to cruise, but the airplane began accumulating structural icing. The pilot requested a lower altitude, but the altitude was still in clouds and the airplane continued to accumulate ice; the controller was unable to provide an even lower altitude to the pilot due to the minimum vectoring altitude. The pilot then visually acquired the airport, at which point the airplane had accumulated 1 1/2 to 2 inches of structural icing. The pilot kept the airplane's speed up during the pattern; however, on short final he reduced power and the airplane stalled about 105 mph. The airplane impacted terrain short of the runway and sustained substantial left and right wing damage. He reported that there were no mechanical malfunctions with the airplane during the flight that would have precluded normal operations. The pilot indicated that he should have obtained the weather conditions at his destination in flight, because they had worsened, or he should have sought an ice-free solution, which may have been behind his flight path.
Probable cause
The pilot’s failure to maintain airspeed during the landing with known structural icing, which resulted in the airplane’s stall. Contributing to the accident was the pilot’s failure to divert to an area where conditions were not conducive to icing.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN13CA005
- Event ID
- 20121006X15548
- Case number
- CEN13CA005
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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: bce71b75b52d2a172e4bd42f1700c8b6614a10dfd77a65cfa747c2c3464d477d; retrieved 2026-09-15T20:06:28.609Z.