SEA96LA008 · Nord (SNCAN) STAMPE SV4C STAMPE SV4
Nord (SNCAN) STAMPE SV4C STAMPE SV4 · Accident: propeller failure/malfunction during initial climb
From 61S to an unrecorded destination
Event
- NTSB case
- SEA96LA008
- 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
Nord (SNCAN) STAMPE SV4C STAMPE SV4
- Aircraft type
- Nord (sncan) STAMPE SV4C
- 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
- N51SV
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From 61STo 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
- Initial climb
- 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
- Propeller failure/malfunction
- 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
- Manufacturer › Material inadequate
- Propeller system/accessories, blade › Separation
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PILOT REPORTED THAT DURING THE INITIAL CLIMB-OUT AFTER TAKEOFF, A CRACKING SOUND WAS HEARD, AND THEN A SEVERE VIBRATION WAS FELT. THE PILOT SHUT THE ENGINE DOWN AND EXECUTED A FORCED LANDING TO AN OPEN FIELD. DURING THE LANDING ROLL ON ROUGH TERRAIN, THE LANDING GEAR COLLAPSED AND THE LOWER WING CONTACTED THE SURFACE. POSTCRASH INSPECTION OF WOOD PROPELLER REVEALED THAT THE OUTBOARD SIX INCHES OF ONE BLADE HAD SEPARATED IN-FLIGHT. THE MANUFACTURER OF THE EXPERIMENTAL PROPELLER REPORTED THAT THE WOOD MATERIAL WAS A TYPE OF MAHOGANY, AND THAT ONLY 5 WERE MANUFACTURED BEFORE DISCONTINUING THE USE OF THIS PARTICULAR WOOD.
Probable cause
A PROPELLER BLADE SEPARATION DUE TO INADEQUATE MATERIAL. THE LACK OF A SUITABLE AREA FOR THE FORCED LANDING WAS A FACTOR.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA96LA008
- Event ID
- 20001207X04792
- Case number
- SEA96LA008
- 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 1995-10-15.
- API snapshot SHA-256: 2e6a631b6addc07e9f7f6752d7884d16ddf4e9229540b6635cc2a50b09bddf32; retrieved 2026-09-22T23:09:11.776Z.