LAX98LA298 · Aero Vodochody Aero. Works L-39
Advanced Training Systems Int Aero Vodochody Aero. Works L-39 · Accident: hard landing during an uncontrolled descent
From Ivanovo South Airport (IWA) to an unrecorded destination
Event
- NTSB case
- LAX98LA298
- 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
Aero Vodochody Aero. Works L-39
- Aircraft type
- Aero Vodochody Aero Works L-39
- 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
- N44529
- Operator
- Advanced Training Systems Int
- Onboard fatalities
- Unknown
- Route
- From Ivanovo South Airport (IWA)To 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
- Uncontrolled descent
- 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
- Hard landing
- 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 › Flare, improper
- Pilot in command › Procedures/directives, not followed
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
While attempting a simulated flame out (SFO) approach, the pilots initiated a go-around at 300 feet agl. They applied full throttle but the engine did not spool up right away and they were not able to arrest their sink rate. About 10 to 12 seconds later the aircraft landed hard 700 feet short of the runway then veered off to the right. The second pilot got the airplane airborne again then touched down in the dirt. At that point the PIC took the controls and attempted to return to the runway, but the aircraft struck the localizer antenna with the right wing tip, which he had not been able to see from the back seat. About 150 yards before the airplane came to a stop, the second pilot ejected from the aircraft without warning. The aircraft came to rest upright in the desert brush. The aircraft pilot's operating handbook directs the pilot to decide whether to continue the landing or eject at a decision height of 800 feet agl. The handbook also indicates that the spool-up time for the aircraft engine is 9 to 12 seconds. The PIC stated that he had expected the engine to spool up in '4 to 5 seconds.' Postaccident examination revealed that the flaps were at the takeoff position, 25 degrees down. The PIC reported that he thought the flaps were still full down at the time of impact. He had also reported that during the descent, it felt like 'the bottom fell out.' Bringing the flaps up before establishing a positive rate of climb can cause a sink rate of 500 to 700 feet per minute. The PIC further stated that he hadn't experienced any problems with the engine prior to the accident.
Probable cause
The pilot's improper flare and his failure to follow the proper procedures for the aircraft and to maintain control of the aircraft.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX98LA298
- Event ID
- 20001211X11106
- Case number
- LAX98LA298
- 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 1998-09-19.
- API snapshot SHA-256: cae64bb5548252d13f57c1fbce658d9464176b8b8c9e0ea889c1634b87fdf37c; retrieved 2026-09-22T16:46:00.071Z.