SEA99LA170 · Champion 7BCM
Champion 7BCM · Accident: on ground/water collision with object during landing
From S86 · SAND POINT, ID to Cavanaugh Bay Airport (66S)
Event
- NTSB case
- SEA99LA170
- 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
- Visual Meteorological Cond
Champion 7BCM
- Aircraft type
- Champion 7
- 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
- N2841E
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From S86 · SAND POINT, IDTo Cavanaugh Bay Airport (66S)
- 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
- On ground/water collision with object
- 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 › Compensation for wind conditions, inadequate
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot overflew the airstrip and observed that the windsocks appeared to be indicating calm winds at the surface. But, according to the pilot, during the touchdown, the aircraft was hit by a strong crosswind gust. The pilot was unable to maintain directional control, and the aircraft departed the runway and impacted trees growing along the edge of the airstrip. After the accident, the pilot exited the aircraft and observed that there were strong, variable, gusty winds blowing. He also noticed that the strong winds were intermittently replaced by periods of calm. The investigation revealed no evidence of control system malfunction or anomaly.
Probable cause
The pilot's failure to adequately compensate for wind conditions. Factors include variable, gusty crosswinds, and trees along the sides of the runway.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA99LA170
- Event ID
- 20001212X19890
- Case number
- SEA99LA170
- 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 1999-09-19.
- API snapshot SHA-256: e1aff00de87f7a82e480482845e1f5f1e51a612800da64a48ed47ce1e6044599; retrieved 2026-09-22T14:04:38.048Z.