What was found
NR 1 ENGINE HAS REPORTS OF OIL STAINING ON THE OTBD FAN COWL. ACFT GROUNDED. ACCOMPLISHED STEP 1 AND 2, FOUND HAND-CRANKING DRIVE COVER LEAKING DURING IDLE-RUN. REMOVED COVER AND REPLACED BOTH O-RINGS, REF AMM 72-00-00, STEP 2, H-1. LEAK CHECK GOOD DURING IDLE RUN AND POST IDLE RUN. NO OTHER LEAKS NOTED, NO STARTER SMOKE OR OIL LEAKS NOTED. PER TECH SERVICES, STEP 3 NOT REQUIRED TO BE ACCOMPLISHED. NOTE: CLEANED COWLS, OIL STAIN IS PERMANENT.