N59207

Part: HYD LINE — LEAKING (NR 2 ENGINE)

THE AIRCRAFT LOST A-SYSTEM HYDRAULIC QUANTITY AND PRESSURE WHILE EN ROUTE. THE AIRCRAFT WAS DIVERTED TO GSO WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND HYDRAULIC PRESSURE LINE ON TOP OF NR 2 ENGINE LEAKING. THE LINE WAS REPLACED USING A FLEX LINE AND A DIP WAS ISSUED TO REPLACE THE FLEX LINE WITHIN 1,200 HOURS OR 500 FLIGHTS. THE HYDRAULIC SYSTEM WAS SERVICED AND BLED, LEAK AND OPERATIONAL CHECKS WERE GOOD.

Part: LINE — LEAKING (NR 1 ENGINE)

LOSS OF A-SYSTEM HYD ON SHORT FINAL. A-SYSTEM PUMPS TURNED OFF. FOUND BLOWN PRESSURE LINE AT FORWARD WHEEL WELL WALL. REMOVED AND REPLACED LINE AND NR 1 ENGINE HYD PUMP PER MM 29-11-32 AND REPLACED SYSTEM CASE DRAIN FILTERS PER MM 29-11-41.

Part: HYD LINE — RUPTURED (NR 1 ENG PYLON)

THE AIRCRAFT LOST A-SYSTEM HYDRAULICS AFTER TAKEOFF. THE AIRCRAFT WAS RETURNED TO CLE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE A-SYSTEM HYDRAULIC PRESSURE LINE FROM NR 1 ENGINE PYLON TO WING ROOT RUPTURED. THE HYDRAULIC PRESSURE LINE WAS REPLACED, LEAK CHECK WAS GOOD.

Part: HYD LINE — CHAFED (LT MLG W/W)

THE AIRCRAFT WAS RETURNED TO EWR AFTER LOSS OF THE A-HYDRAULIC SYSTEM. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A-SYSTEM RETURN LINE IN LT MLG WHEEL WELL CHAFED AGAINST ANOTHER HYDRAULIC LINE. BOTH HYDRAULIC LINES WERE REMOVED AND REPLACED AND LEAK CHECKS WERE GOOD.

Part: GEARBOX — LEAKING (NR 1 ENGINE)

THE NR 1 ENGINE OIL PRESSURE ROSE TO OVER 60 PSI AFTER TAKEOFF. WHEN THE NR 1 THROTTLE WAS RETARDED, THE OIL TEMPERATURE ROSE BEYOND THE RED LINE. THE NR 1 ENGINE WAS SHUTDOWN AND THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. THE NR 1 ENGINE WAS REMOVED AND REPLACED DUE TO OIL LEAKAGE. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. *S/D* SHOP FINDINGS REPORTED THE GEARBOX WAS REMOVED AND REPLACED AND SUBSEQUENT TESTING WAS GOOD.

Part: FUEL HEAT VALVE — INOPERATIVE (NR 1 ENGINE)

THE NR 1 ENGINE OIL TEMPERATURE WENT INTO THE YELLOW BAND AFTER DEPARTURE FROM EWR. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE FUEL HEAT VALVE NOT SEATING PROPERLY. THE FUEL HEAT VALVE WAS REPLACED, ALL CHECKS WERE GOOD DURING A HIGH POWER ENGINE RUN.

Part: BATTERY PACK — DISCHARGED (LT/RT OVERWING)

GSO - INSPECTION FOUND THE LT AND RT OVERWING EMERGENCY LIGHTS INOPERATIVE. THE BATTERY PACKS FOR THE LT AND RT OVERWING EMERGENCY LIGHTS WERE REMOVED AND REPLACED IAW MM 33-51-31 AND OPERATION OF THE LIGHTS WAS RESTORED. (X)

Part: EEL — INOPERATIVE (AFT EXTERIOR)

GSO - INSPECTION FOUND THE RT AFT EXTERIOR EMERGENCY LIGHT INOPERATIVE. THE RT AFT EXTERIOR LIGHT ASSY WAS REMOVED AND REPLACED IAW MM 33-51-01. (X)

Part: CIRCUIT BREAKER — POPPED (P6-3 PANEL)

EWR - FLT 1482 - WHEN LANDING GEAR WAS EXTENDED ON FINAL APPROACH TO EWR, THE GEAR 'DOWN AND LOCKED' LIGHTS DID NOT ILLUMINATE. A 'GO AROUND' WAS INITIATED AND THE CREW OBSERVED THE CIRCUIT BREAKER ON P6-3 PANEL LABELED 'SECT 5' POPPED. THE CIRCUIT BREAKER WAS RESET AND ALL GEAR INDICATIONS WERE NORMAL. MAINTENANCE INSPECTED THE CIRCUIT BREAKER AND FOUND NO ABNORMALITIES. (X)

Part: HYD LINE — CHAFED ('A' HYD SYST)

FLT NR 1484 - EWR - THE 'A' HYDRAULIC SYSTEM WAS LOST APPROXIMATELY 20 MINUTES BEFORE ARRIVING IN EWR. THE HYDRAULIC QUANTITY INDICATED ZERO. THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. MAINTENANCE FOUND THE 'A' SYSTEM AILERON PCU HYDRAULIC PRESSURE LINE CHAFED THROUGH. THE PRESSURE LINE WAS REMOVED AND REPLACED. IN ADDITON, BOTH ENGINE DRIVEN HYDRAULIC PUMPS WERE REMOVED AND REPLACED AS A PRECAUTIONARY MEASURE. LEAK AND OPERATIONAL CHECKS WERE GOOD. (Z)