What was found
APU AUTO SHUTDOWN IN CRUISE AND WOULD NOT COME BACK ONLINE 11/12-SMOKE COMING FROM TAILPIPE-REPLACED OIL COOLER 11/8-SERVICED APU GEARBOX OPS CHECKED OK 11/2-REPLACED LUBE UNIT FILTER AND START/GEN FILTER OPS CHECKS OK 11/2-SMOKE COMING FROM TAILPIPE-R/R'D OIL COOLER<[01] 05 - OK TO CONTINUE PER [MEL 49-1-01; AUXILIARY POWER UNIT]. WITH SP _______1__ AND AUTHORIZATION NUMBER ____223764___;[02] R/R APU IAW AMM 49-11-00(SEE TTG8Q00EXK9Z FOR WORK PERFORMED)