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Preliminary Investigation
With Nestor's help, the two NTSB inspectors were able to retrieve from the recording box of the truck the videos from inside the cabin and from the camera from the left side, directed backward.
From the cabin videos, the could see that when the accident occurred, the driver was sleeping, something he was not allowed to.
They also realized that the car was not visible on the video from the left camera at the moment when the truck changed lane to pass the other slower truck.
As the truck was driving at the speed limit, they had already established that the car was speeding. But that did not explain why the car was not visible on the camera video.
With the help of Nestor, Moana, and the manufacturer representative that had finally arrived they removed the computers and all the sensors they could for further analysis.
Nestor indicated that they could officially get from NAAVCA the software used to analyze the recording.
In the evening, as they had finished their preliminary investigation, they called for a tow truck to move the damaged vehicle and trailer to Boise where they were going to continue to investigate the following days.
The NTSB inspectors thanked Nestor and Moana for their help and told them that they would be in touch later if they had questions.
Nestor and Moana went with their truck to Boise. After dinner in a restaurant, they spent the night on the parking of the Walmart Supercenter. The next day, they drove back home.
Although they had not seen any indication that their software was deficient, they could not be absolutely sure. So, they were worried.
Copyright © Vincent Celier, License CC BY-SA 
Next Part 25: Complete Exoneration
Part 1: An Eventless Trip
Part 2: Nestor, Son of Immigrants
Part 3: Moana, a "demi-tinto" from Punaauia
Part 4: Nestor and Moana Meet Online
Part 5: First Dates
Part 6: First Trip Together
Part 7: Coder Becomes Trucker
Part 8: Trucker Becomes Coder
Part 9: Small Truck and Solar Panels
Part 10: The NeMo Trucking Software Company
Part 11: Getting Help
Part 12: A Different Kind of Company
Part 13: Nestor and Moana Get Married
Part 14: Newlyweds in Tahiti
Part 15: From Level 3 to Level 4
Part 16: Authorized Testing of the Software
Part 17: First Contracts
Part 18: Ready for Certification
Part 19: The Certification Process
Part 20: Very Busy after Certification
Part 21: The Company is Growing
Part 22: Toward European Certification
Part 23: The Accident