As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GEAR RETRACTION ON DURING CLIMB-OUT FROM MIA. NR 4 HYDRAULIC SYSTEM QUANTITY DECREASED TO 1 GALLON. SYSTEM DEPRESSURIZED, QUANTITY INCREASED TO 2.5 GALLONS UPON GEAR EXTENSION. AIRCRAFT WAS BEING THREE ENGINE FERRIED TO JFK WITH NR 4 ENGINE INOP. OIL LOSS FROM ENGINE DISCONNECT. ENGINE REPLACED LINE TIGHTEN, NOW OK. (M)