What was found
JFK - FLT 0106 - AT 33,000 FEET, NR 1 ENGINE OIL PRESSURE WAS 32-34 PSI (NR 2 WAS 56 PSI) NR 1 OIL QUANTITY WAS 17 QUARTS AT LEVEL OFF, BUT SLOWLY DROPPED TO 11 QUARTS BEFORE STABILIZING. FOUND OIL CAP LEAKING REPLACED CAP AND CHECK VALVE ASSY. LEAK CHECKS OK. (X)