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The NTSB released its preliminary findings on Wednesday on the crash that killed pilot Anh-Thu Nguyen at the start of her solo flight around the world.
Preliminary data suggests there was no sign of engine failure from when her 2005 Lancair IV-P single-engine aircraft took off to when it crashed. All engine readings were steady.
The crash occurred July 30 at 10:46 a.m., shortly after Nguyen took off from Runway 19 at the Indy South Greenwood Airport (HFY). The report states that ADS-B data was not available for the crash from the FAA. However, investigators reviewed ADS-B data from a commercial service that uses private receiver data.
The Garmin G900X avionics suite in Nguyen's aircraft also recorded the flight. Its recording ended 13 seconds before the ADS-B data, but given how data is stored in its memory, there is no indication of an avionics or electrical failure because of the time gap.
Nguyen's aircraft began a climbing left turn after takeoff and continued for about 30 seconds before the turn radius decreased. The aircraft then descended rapidly to the right.
The time between the takeoff roll and the crash was 1 minute and 30 seconds, according to the NTSB. The report did not include specifics about altitude, speed or distance.
The plane went down just west of I-65 near the Greenwood airport, behind a Circle K gas station. Nguyen died at the scene.RELATED ARTICLE:Pilot Anh-Thu Nguyen dies in plane crash at start of global solo flightShe had stopped in Greenwood, Indiana, after leaving AirVenture in Oshkosh, Wisconsin, on July 27. She was just starting the second leg of her first solo flight around the world and was headed to Pennsylvania. She was hoping to be the first Vietnamese woman to complete the journey.If the NTSB determines a probable cause for the crash, it would be included in its final report, which is expected to take at least a year.