Specifically,
Gator 524 came on station at 0803 hrs 25 April as C&C bird for the 1-22. At 1010 hrs, Gator 524 took 16 hits, with one crew member WIA and was forced to withdraw from the mission. At 1041 hrs, Gator 517 came on station as a replacement C&C bird.
Taken from 1-22 S-3 Radio Logs, 24-27 April, 1968.
More on the Battle of Chu Moor Mountain can be found at
http://1-22infantry.org/history/chumoortitle.htm
George