- 1956
Class Leader Walkers DEL1270 [558] entered service [reno.1500 in Jun 1956, reno.1170 in Jun 1965]. First "light lines" DEL in service. First 1170-class in service.
- 1957
Collision: OAKEY, WL, C17.808 & C16.512 in Yd.
Collision: Parkes St LC, TOWNSVILLE WEST, NCL, PB15.559 & a ute.
- 1965
Clyde DEL1475 [64-363] entered service.
- 1972
Collision: 955m 40ch, NCL, Clyde DEL1463 [64-351] on 154 Up & a section trolley, due to failure to observe instructions of Station Inspector.
- 1974
Collision: 216m 14ch, Walker St LC, BUNDABERG-ELLIOTT, NCL, Clyde DEL1509 [67-604] on 266 Up Sunlander & a Ford sedan.
- 1978
Collision: Church St LC, GARBUTT, NCL, Walkers DH39 [621] on shunt & a Toyota sedan.
Collision: Saunders St LC, TOWNSVILLE Yd, NCL, Clyde DEL1567 [76-814] & 2xWHO wagons, due to points failure.
Derailment: Morey St LC, TOWNSVILLE, NCL, Clyde DEL1556 [75-802], due to tight gauge.
- 1983
Clyde DEL2505 [83-1144] entered service.
- 1988
Walkers DL3 "MT SURPRISE" [571] removed from traffic [sold ARHS, arr on 18 Feb 1988].
- 1989
Com-Eng RM2003 removed from traffic [destroyed in Jun 1995].
- 1992
KULANGOOR-GYMPIE NTH, NCL, electrification energised.
EEA DEL1272 [A.091] removed from traffic [destroyed in Jan 1992].
EEA DEL1274 [A.094] removed from traffic [destroyed in Oct 1991].
- 1999
TOWNSVILLE Jetty-MT ISA available for 20t axle load block trains.
Researched and compiled by Peter Burkitt, with later additions as sourced. About this list, abbreviations and the full calendar