ERA23LA279 · Edmisten Robert Eugene SR RANS S-14 AIRAILE
Edmisten Robert Eugene SR RANS S-14 AIRAILE · Accident during takeoff
Event
- NTSB case
- ERA23LA279
- 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
- Event fatalities
- Unknown
- 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
Edmisten Robert Eugene SR RANS S-14 AIRAILE
- Aircraft type
- Edmisten Robert Eugene SR RANS S-14 AIRAILE
- 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
- N528RE
- Operator
- Edmisten Robert e SR · private individual
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- About 19 years (built 2004)
- 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
- Defining eventThe 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
- Miscellaneous/other
- 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
- Aircraft › Aircraft propeller/rotor
- Personnel issues › Task performance
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot of the experimental amateur-built airplane was flight testing a newly installed propeller. During ground static testing, the pilot found the propeller rpm to be acceptable. After liftoff, the engine rpm increased to a non-acceptable range. The pilot responded by reducing the throttle and retracting the flaps. He also described that the airplane’s flight controls felt like a “…mushy precursor to a stall.” The pilot then increased the engine power to full and lowered the nose of the airplane to increase airspeed. The airport was surrounded by housing developments, and the pilot turned left in an attempt to return to the airport, but the airplane would not maintain altitude. He then guided the airplane toward trees in order to avoid impacting the houses. During the accident sequence, the airplane sustained substantial damage to the wings, tailboom, and cabin structure. Following the accident, the pilot stated that he had, “inadequately adjusted” the propeller’s pitch before the accident flight, which resulted in the airplane’s inability to maintain thrust and lift.
Probable cause
The pilot’s failure to properly adjust the propeller’s pitch angle, which resulted in a loss of thrust and an inability to maintain altitude.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA23LA279
- Event ID
- 20230630192492
- Case number
- ERA23LA279
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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, cause areas. 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: 728c4eea71502d7e4694374e0f826821d14243422355bd2ae22292f8f4a0cf28; retrieved 2026-09-16T17:47:27.005Z.