TECHNICAL BULLETIN 30 JULY 1984 ISSUE II THE "L" RUNDOWNS The L11 RUNDOWN STEP ONE STEP ONE: 37R Do the full 37R Rundown as given in C/S Series 37R. Items from 37R Rundown L&N lists can be blown by D/L if needed. They can also be checked for "Yours", "a BT'S, "A cluster's" for PreOT's and handled appropriately.