next significant event was the development of the esrb burn through plume. camera 207, located six miles north of the launchpad, shows the growth of this plume. evidence of flames appeared on the right solid rocket booster at 58 .788 seconds. this occurred as the main engines have been throttled up and the esrb's were increasing thrust. camera 203 was located west of the launch site and gives an aft view. the exposure was set for the booster plumes. this graphic illustrates the location of the player. the player was located near the aft field joint 300 degrees, consistent with the smoke at liftoff. within half a second the flame had grown into a continuous and well-defined plume. at the same time, telemetry showed a divergence in chamber pressures. pressure in the right srv chamber was lower as a result of the growing leak. the plume is seen here in pitching directly onto the and at about 60 seconds the control system element started to respond to the course is caused -- forces caused by the plume. theecorded on 207 and 204, first visible indication of the a

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in general, a utilities engineer from esrb is assigned to investigate an incident. the engineer visited the site of the incident and conducted a field investigation. at the scene of the incident, they assign engineers first identify and safe locations and ensure the incident is safe and under control before starting investigation. the engineer will interview witnesses and first responders and physical evidence. they will review records and do any other necessary follow up investigation. because each incident is unique, the investigation length will vary based on many factors including the location and have the ability of witnesses and the level of the witness cooperation, involvement and another government agencies and test that may need to be conducted. with this investigation with electric incidents review neglect by the utilities and will call an investigation which can result in a penalty and chance to the utilities procedures as the c puc deems necessary. in addition to incident investigation, our engineers perform four types of safety audit. electric distribut