I took Nwaclc's list and have looked up the airframe hours and cycles as of the last SDRs for each one. Some of the dates will be quite old. Can anyone update this? Date at end of entry is date of reading:

a/c 1211 01oct74 123706 hours, 28511 cycles, 6/8/04

a/c 1221 06feb74 117021 hours, 27576 cycles, 8/21/02

a/c 1223 11jan75 119362 hours, 27298 cycles, 7/13/03

a/c 1224 15feb75 95827 hours, 23730 cycles, 10/1/03

a/c 1225 21feb75 120056 hours, 26826 cycles, 6/17/04

a/c 1226 03mar80 92401 hours, 19717 cycles, 5/17/03

a/c 1227 21oct77 102225 hours, 23185 cycles, 5/20/02

a/c 1229 07dec72 105501 hours, 26193 cycles, 8/18/00

a/c 1230 06feb73 114017 hours, 27178 cycles, 10/28/02

a/c 1232 09may77 95823 hours, 19325 cycles, 11/9/03

a/c 1233 21sep77 78587 hours, 21306 cycles, 4/22/01

a/c 1234 10feb75 118912 hours, 27156 cycles, 10/1/03

a/c 1235 25apr75 81320 hours, 18604 cycles, 2/16/02

a/c 1236 09feb75 80830 hours, 18418 cycles, 4/2/03

a/c 1237 10nov80 78947 hours, 17502 cycles, 12/28/03

a/c 1238 01dec87 55806 hours, 9016 cycles, 5/2/04

a/c 1239 18dec87 50390 hours, 8213 cycles, 3/6/03

a/c 1240 26may88 46962 hours, 8023 cycles, 2/22/03

a/c 1241 27feb81

a/c 1242 17mar81 80825 hours, 18850 cycles, 3/4/04

a/c 1243 25feb88 38255 hours, 12364 cycles, 5/15/04

a/c 1244 02jun88 32980 hours, 10995 cycles, 4/29/03

Couldn't find records on 1241, but probably compares with 1242.

NW has 8 flying with over 100,000 hours, with another 3 pushing at that level.