Kelly Anderson, a regular poster on this site, was probably the person who put an end to 1361's restoration when he reported on the actual condition of the boiler. I hope he can report on what went wrong, if he is free to do so. As I recall from writings on the problem when it first surfaced, the PRR had allowed little or no material in the boiler sheets for wastage. With the current FRA requirement, and with the technology available today, actual sheet thickness are measured and used to calculate the maximum pressure. On 1361 this left the maximum boiler pressure below what was needed for the locomotive adequately preform with a main line train. The UT readings on the boiler either were not done until well into the restoration, or the significance of the readings were not understood.
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