SEA03LA061 · Avia Stroitel AC-5M
Avia Stroitel AC-5M · Accident: airframe, component or system failure during initial climb
From Richland Airport (RLD) to Richland Airport (RLD)
Event
- NTSB case
- SEA03LA061
- 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
Avia Stroitel AC-5M
- Aircraft type
- Avia Stroitel AC-5
- Category
- Glider
- 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
- N125MZ
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Richland Airport (RLD), Richland, WATo Richland Airport (RLD), Richland, 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
- 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
- Airframe, component or system failure
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall
- 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 › Airspeed, not maintained
- Propeller system/drive assembly › Slipped
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The takeoff was normal until two-thirds of the way down the runway, at approximately 150 feet above ground level, the tension on the propeller drive belts slipped resulting in a loss of power. The pilot elected to make a right turn to land on an intersecting runway; however, the pilot's failure to lower the nose resulted in the loss of airspeed and the right wing stalling. The aircraft impacted the ground with its right wing tip, spun around 180 degrees, skidded backwards across a taxiway, and came to rest in sandy soil. The reason for the slippage of the drive belts was not determined.
Probable cause
The pilot's failure to maintain airspeed and the failure of the propeller drive assembly. A factor contributing to the accident was the inadvertent stall.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA03LA061
- Event ID
- 20030416X00519
- Case number
- SEA03LA061
- 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: 80395c39e4f27b389f0d447392ef92e821d305f44b6192a3f184245af431d668; retrieved 2026-09-22T09:25:04.932Z.