What was found
CREW REPORTED A STRONG ODOR OF FUEL NOTICED IN FWD & AFT GALLEYS. SINGLE ENG TAXI - ODOR COMING FROM ENG NR 1. FLIGHT RETURNED TO THE GATE. MX COMPLIED WITH JOB CARDS 26L00021001, 26L00021003 & 26L00021004. FOUND OIL COMING OUT OF NR 1 & NR 2 ENG BREATHER AFTER ENG SHUTDOWN. R & R NR 1 & NR 2 ENG DE-OILER SEAL ASSEMBLIES IAW AMM 72-60-31-400-010-A. R & R LT & RT CONDENSERS & RE-HEATERS. OPERATIONS & LEAK CHECKED GOOD. ACCOMPLISHED SATISFACTORY MX TEST FLIGHT.