SEA84FA215 · Piper PA-28-180
Piper PA-28-180 and Maule M-4 · Accident: midair collision en route
Event
- NTSB case
- SEA84FA215
- 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
- 6 · 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
Aircraft 1 · Piper PA-28-180
- Aircraft type
- Piper PA-28
- 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
- N6499J
- Operator
- Jack e Thompson · private individual
- Onboard fatalities
- Unknown
- Route
- From Columbia Gorge Regional Airport (DLS), The Dalles, ORTo 59S · Vancouver, WA
- 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 · climb to cruise
- 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
- Midair collision
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Aircraft 2 · Maule M-4
- Aircraft type
- Maule M-4
- 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
- N4622T
- Operator
- Mark G Wilson · private individual
- Onboard fatalities
- Unknown
- Route
- From 60R2 · Chenoweth, ORTo Columbia Gorge Regional Airport (DLS), The Dalles, OR
- 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 · cruise
- 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
- Midair collision
- 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
- Pilot in command › Clearance, not maintained
- Pilot in command › Visual lookout, inadequate
- Pilot of other aircraft › Clearance, not maintained
- Pilot of other aircraft › Visual lookout, inadequate
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
N6499J DEPARTED THE DALLES MUNICIPAL ARPT SHORTLY AFTER 0930 PDT ON A FLT TO VANCOUVER, WA. N4622T DEPARTED CHENOWETH AIRFIELD ( APRX 4 NM WEST OF THE DALLES) AT ABOUT 0930 PDT ON A FLT TO THE DALLES MUNICIPAL ARPT. A WITNESS WHO OBSERVED BOTH ACFT BEFORE THE COLLISION STATED THAT N6499J WAS IN A WINGS LEVEL CLIMBING ATTITUDE PROCEEDING NORTHWEST AND N4622T WAS IN A WINGS LEVEL ATTITUDE AT A RELATIVELY CONSTANT ALTITUDE TRAVELING EASTWARD. THE WITNESS CONTINUED TO STATE THAT N4622T WAS ABOVE OR ON TOP OF N6499J WHEN THE COLLISION OCCURRED. BOTH ACFT THEN DESCENDED STEEPLY TO GROUND IMPACT AND SUBSEQUENT FIRE. THE COLLISION OCCURRED APRX 3 NM NORTHWEST OF THE DALLES, OR.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record SEA84FA215
- Event ID
- 20001214X41224
- Case number
- SEA84FA215
- 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: 7b215cb8f1f90bff70ebbbb782fa7f1fe69ec76b76f67c5dd135bd57390586b2; retrieved 2026-09-21T05:21:45.261Z.