Good riddance to these birds. My most horrific memory of these was doing BKK-MUC in C some 5-6 years ago. Not even close to normal Y.
The current list of TG aircraft and their age can be found here:
http://www.airfleets.net/flottecie/Thai%20Airways.htm
The TG MD11s:
MSN Type Delivery date Registration
48416 (466) MD-11 P 27/06/1991 HS-TMD
48417 (467) MD-11 P 15/07/1991 HS-TME
48418 (501) MD-11 P 02/07/1992 HS-TMF
48451 (505) MD-11 P 31/07/1992 HS-TMG
Some AB6 in their fleet are beyond the 20 years that are a benchmark in the industry for profitable operations. I hope they sell those soon!