554th LEM Radar Detachment '67-'68
I served with the 554th LEM in 1967 and 1968 - I was assigned with the detachment who supported from Ahe Khe Until Jan 1968 and then the detachment went north to Hue with the 1st Cav. We supported counter mortar and anti-personnel radar for all the units deployed in I Corps…. Spent my year as a contact team repairman visiting LZ after LZ up and down the Highlands & Coast. 
In May 1968 our detachment was replaced by a direct support maintenance company and half of our detachment convoyed down to Da Nang to wait on an LST - I received a 10 day drop and got a hop back to the 554th and two days later was on a jet back to the states. Looks like I missed the deactivation of the 554th by about 30 days. -
I was also at the 554 th the evening they hit the company On our left…. I and a Sp/5 McCoy were down on R&R from Hue and did not bring our weapons - so we spent the night handing out ammo from the bunker.
When I arrived at the 554th there was two detachments that worked counter mortar radar.... One at Dong Ha - SSGT Henry, and the second one was at An Khe..Sgt Davis. During the first 6 months they would not send any married guys up to Dong Ha because they were hit by rocket fire from across the DMZ almost every other day. An Khe was better until the TET offensive... And then the 1st Cav was sent up to help the Marines and we found out what Air Mobile was all about. SGT Davis refused to go up north so we got lucky and drew SSGT Henry... From Jan 68 until May 1968 our detachment was at Hue (LZ Hell Paso) and then moved down to the Helo Pad at Phu Bi. In May our detachment was replaced by another Maint Co and 5 or 6 of us convoyed down to Da Nang to catch an LST. I got a 10 day drop and took a hop out of Da Nang rather than wait on the LST......................... Richard D. Colbert