SEA98LA151 · Curtiss-Wright 12W
Curtiss-Wright 12W · Accident: on ground/water collision with object during landing
From Vancouver, WA to an unrecorded destination
Event
- NTSB case
- SEA98LA151
- 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
Curtiss-Wright 12W
- Aircraft type
- Curtiss Wright 12
- 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
- N11715
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Vancouver, WATo not recorded
- 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
- 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 › Clearance, misjudged
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot of the antique biplane stated that he preferred to land on grass when possible, so he elected to land on the 800 foot grass overrun area of the 1965 foot runway. From the air, the freshly mowed overrun looked acceptable, with the eight to nine foot high stand of scotch bloom showing as a dark green from the air and appearing to be grass. He slipped to a landing, touched down straight and was tracking near the middle of the mowed area when his right wing tip caught in the scotch bloom. The vegetation pulled the aircraft off the right side of the runway, and the lower left wing impacted the ground, causing substantial damage. According to FAA inspectors, the first signatures of impact were 62 feet from the near end of the runway. The airplane came to a stop 247 feet from the near end of the runway. The width of the mowed area of the runway was 49.5 feet, at the time the FAA inspector checked it. The pilot stated that the mowed overrun of 800 feet was mowed 25 feet wide up to the edge of the eight to nine feet high scrub brush at the time of the accident, and that his airplane had a 28 foot wing span.
Probable cause
The pilot in command misjudged clearance from high vegetation when he landed. Factors include inadequate mowing of high vegetation by airport personnel, providing insufficient clearance for the wingspan of landing airplanes
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA98LA151
- Event ID
- 20001211X10730
- Case number
- SEA98LA151
- 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: 161a16d1f50ba1d343f3cf6f4cadd2246dbeb18c91d6aa4d172a38c3c3ddce94; retrieved 2026-09-22T17:19:57.945Z.