This information was provided following responses from Colin McDonald and Brian Bere-Streeter - the information coming from "38" by John Thompson, Eveleigh Press, 1992 - Chapter - 'Off the Rails'
The accident happened at approx 4.05am 30th June 1948 when 3817 hauling No 23 South West Mail between Rocky Ponds and Cunningar was derailed by a broken rail. Four persons were
deceased and twelve seriously injured.

Brian's Summary - "3817 had an unfortunate career, as it was also involved in two other accidents -

30th Oct 1959 - near Aylmerton - 3817 hauling No 128 fast stock train stopped in a cutting due to torrential rainfall, the crew tried to reverse the locomotive out of the cutting without
success, and sensing danger left the locomotive and walked to a safe position - shortly after, a wall of water around four feet high flooded the cutting, washing away the embankment
under the locomotive, which slid nose-first into the resulting hole at 45 degrees.

23rd Aug 1963 - Geurie - 3817 hauling No 58 Mail collided at speed with Garratt 6003 which was shunting and partially fouled the main line  - 3817 was called the 'Voodoo' engine
because of its three major accidents, and withdrawn from service immediately - both locomotives were extensively damaged and were deemed uneconomic to repair and subsequently
scrapped. Twenty persons were injured requiring hospital treatment."