SEA04LA015 · Schmitt (Rotorway) Exec 162F
Schmitt (Rotorway) Exec 162F · Accident: loss of control in flight during takeoff
From Prosser Airport (S40) to an unrecorded destination
Event
- NTSB case
- SEA04LA015
- 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
Schmitt (Rotorway) Exec 162F
- Aircraft type
- Schmitt (rotorway) EXEC 162
- Category
- Helicopter
- 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
- N6463S
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Prosser Airport (S40), Prosser, 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
- Takeoff
- 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 in flight
- 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
- Dual student › Collective, abrupt
- Pilot in command(cfi) › Supervision, inadequate
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
While on an instructional flight, the flight instructor demonstrated a takeoff from a slope to the student pilot (owner) and then gave control of the rotorcraft to the student to execute a similar maneuver. The first attempt was aborted and the maneuver was re-initiated. On the second try the student rolled the rotorcraft to a level attitude but then failed to neutralize cyclic before attempting to liftoff. The student then abruptly applied collective and the rotorcraft began rolling left rapidly, lifting off and entering an immediate left rotation about five feet above ground. The instructor took control of the rotorcraft and attempted to regain directional control. He did not reduce throttle as the rotorcraft was over a ditch, which he did not want to land in. Without a throttle reduction the rotorcraft continued to rotate through four revolutions before RPM had decayed to an extent that sustained flight was no longer possible. The rotorcraft then touched down clear of the ditch while still rotating and immediately rolled onto its left side.
Probable cause
The student pilot's abrupt application of excessive collective and the flight instructor's inadequate supervision of the student. Contributing factors were the ditch and low rotor RPM.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA04LA015
- Event ID
- 20031113X01898
- Case number
- SEA04LA015
- 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, coordinates. 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: 03883207c2e3dbc8b0513cce20cca0882d9d89b725e90b696914c2d2a8cbaf9b; retrieved 2026-09-22T08:13:38.173Z.