N850AX

Part: CONNECTOR — DAMAGED (MLG) · airframe 52,969 hrs · 24,278 cycles

ON FINAL APPROACH WITH LANDING GEAR EXTENSION LEFT MLG GREEN LIGHT DID NOT ILLUMINATE. RECYCLED LANDING GEAR LEFT MLG GREEN LIGHT ILLUMINATED. DISASSEMBLED CONNECTOR (P1-137), NO PROBLEMS NOTED. REPLACED PINS K, L, M AS PRECAUTION. REPLACED LEFT DOWN LIMIT SWITCH (S1-208), ALSO AS A PRECAUTION. OPS CHECKED GOOD IAW DC8 MM 32-61-01, SHEET 2.

Part: SWITCH — MALFUNCTIONED (LT MLG) · airframe 5,294 hrs · 24,249 cycles

LT MLG DOWN (GREEN) INDICATING LIGHT TOOK OVER ONE MINUTE TO COME ON, CAUSING MISSED APPROACH. REPLACED LT MLG POSITION SWITCH IAW DC8MM 32-60-00.

Part: SWITCH — FAILED (MLG)

LEFT MAIN DOWN AND LOCK INDICATION DID NOT COME ON WHEN GEAR WAS EXTENDED. NO RED LIGHT ON. ABNORMAL PROCEDURE ACCOMPLISHED. (FLY BY FOR MAINTENANCE TO VERIFY GEAR DOWN.) AFTER SITTING STOPPED ON RUNWAY FOR FIVE MINUTES THE LEFT MAIN GEAR GREEN LIGHTS CAME ON. FOUND LEFT HAND MAIN LANDING GEAR DOWNLOCK SWITCH PINS CORRODED. REPLACED SWITCH, OPS CHECKED GOOD IAW DC8 SMM 32-10-00.

Part: CONNECTOR — DEFECTIVE (LT MLG)

ON APPROACH TO ILN WITH GEAR DOWN AND THREE SAFE LIGHTS, RED UNSAFE LIGHT CAME ON INTERMITTENTLY. RECYCLED GEAR, NO HELP. LANDING WAS UNEVENTFUL. REPLACED P1-1398 CONNECTOR IAW DC8 WDGM 32-61-01. OPS CHECKED GOOD.

Part: TIRE — FAILED (LT MLG)

AFTER TAKEOFF AND DURING LANDING GEAR UPLATCH CHECK, LEFT GEAR INDICATED UNSAFE. RECYCLED GEAR, SAME RESULTS. FOUND LEFT TIRE RETREAD DISBONDED AND INTERFERRING WITH DOOR UPLATCH SYSTEM. REPLACED WHEEL/TIRE ASSY, OPS CHECKED GOOD.

Part: DOOR — OUT OF ADJUST (CABIN)

DURING POST FLIGHT INSPECTION WAS UNABLE TO OPEN MAIN CABIN DOOR. MADE VERTICAL ADJUSTMENT IAW DC8 MM, OPS CHECKED GOOD.

Part: JAMB — CORRODED (C-3 DOOR)

DOOR JAMB WEB HAS CORROSION AT STATION X1.38 X 5.80 (C-3 DOOR). REPAIRED IAW ABX REA D853-24258MR.

Part: SPLICE — CORRODED (BS 1280)

LONGERON SPLICE AT STATION 1280 LONGERON 34R IS CORRODED. REPAIRED IAW DC8 SRM 51-3-2 AND 51-1-20D.

Part: LONGERON — CRACKED (BS 1280)

LONGERON 3LL IS CRACKED AT STATION 1280 TO 1260. REPAIRED IAW DC8 SRM 51-3-0.

Part: JAMB — CORRODED (C3 DOOR)

C3 DOOR JAMB CORRODED. REPAIRED IAW REA D853-23458MR.

Part: SKIN — CORRODED (LT TE FLAP)

LEFT WING OUTBOARD FLAP UPPER SURFACE BULGED JUST FORWARD OF PRIOR DOUBLER REPAIR OUTBOARD OF OUTBOARD HINGE FOLDING COVER. REPAIRED IAW DC8 SRM 57-7-0, AND 57-2-1.

Part: SUPPORT — CRACKED (BS 260)

FORWARD LOWER CARGO FLOOR SUPPORT ANGLE CRACKED AT STATION 260, LONGERON 33L. REPAIRED IAW DC8 SRM 51-1-3 AND 51-1-8, 51-1-20, AND 51-1-21.

Part: PANEL — CRACKED (RT WING)

RIGHT WING LOWER TRAILING EDGE PANEL 577B EXTERIOR SKIN CRACKED AND DISBONDED. REPAIRED IAW DC8 SRM 51-1-8 AND 57-3-0.

Part: LONGERON — CRACKED (BS 1340)

LONGERON 356 STATION 1340 IS CRACKED. REPAIRED IAW DC9 SRM 51-1-20D AND 51-3-2.

Part: PANEL — CRACKED (NR 1 PYLON)

NR 1 PYLON ACCESS PANEL LAND DOUBLER HAS A CRACK FROM CAM LOK HOLE TO EDGE OF DOUBLER, LENGTH 44. REPAIRED IAW ABX REA D854-23467MR.

Part: ANGLE — CRACKED (NR 1 PYLON)

RADIUS CRACK AT NR 1 PYLON ATTACH ANGLE. REPAIRED IAW ABX REA D854-23442MR.

Part: LONGERON — CRACKED (FUSELAGE)

CORROSION AND CRACK ON LONGERON 2L. REPAIRED IAW ABX REA D853-23444MR.

Part: LONGERON — CORRODED (BS 560)

CORROSION ON LONGERON 36 AT STATION 560. REPAIRED IAW ABX REA D85323445MR.

Part: SKIN — CRACKED (L1 DOOR)

CRACK AT FORWARD PASSENGER DOOR CORNER. REPAIRED IAW ABX REA D853-23437MR, REV A.

Part: TEAR STRIP — CRACKED (FUSELAGE)

STATION 140 TEAR STRIP IS CRACKED. REPAIRED IAW ABX REA D853-23438MR.

Part: DOUBLER — CRACKED (BS 140)

FORWARD LOWER CARGO STATION 140 AT LONGERON 35R INTERNAL DOUBLER IS CRACKED. REPAIRED IAW ABX REA D853-23438MR.

Part: SPRING — BROKEN (RT COCKPIT)

DURING PREFLIGHT, FOUND THAT THE FIRST OFFICER'S SLIDING WINDOW (EMERG EXIT) WOULD NOT OPEN FULLY. REPLACED BROKEN AFT SPRING, WINDOW OPS CHECKED GOOD.

Part: REGULATOR — LEAKING (COCKPIT)

CREW AND OBSERVER OXYGEN BOTTLES WENT TO ZERO PRESSURE. AIRCRAFT DIVERTED TO MCI FOR UNSCHEDULED LANDING. REPLACED CREW AND OBSERVER OXYGEN BOTTLES AND OBSERVER REGULATOR.

Part: RELIEF VALVE — DEFECTIVE (NR 4 ENGINE)

ON APPROACH NR 4 ENGINE OIL PRESSURE WAS 30 PSI WITH LOW OIL PRESSURE LIGHT\NON. SHUT DOWN NR 4 ENGINE. WINDMILLING OIL PRESSURE WAS 3 PSI AT 20 PERCENT N2. ENGINE WINDMILLED WITH OIL PRESSURE BELOW 8 PSI FOR 8 MINUTES. REPLACED NR 4 ENGINE OIL PRESSURE RELIEF VALVE IAW PRATT-WHITNEY MM 72-00. OPS AND LEAK CHECKED GOOD.

Part: CONNECTOR — DEFECTIVE (NR 3 OIL PRESS)

DURING CRUISE, NR 3 ENGINE OIL PRESSURE READ OFF SCALE HIGH. OIL QUANTITY INDICATED NORMAL. PERFORMED ENGINE SECURING CHECKLIST. FOUND NR 3 OIL PRESSURE TRANSMITTER CONNECTOR DETERIORATED. REPLACED P1-858. FOUND WIRE NR E12 CHAFING AT ADEL CLAMP. REPAIRED WIRE AND REPLACED CLAMP. REPLACED NR 3 OIL PRESSURE INDICATOR AS PRECAUTIONARY.

Part: RETRACT PIN — BROKEN (RT MLG)

RIGHT GEAR AND GEAR DOOR UNSAFE LIGHT AFTER GEAR RETRACTION. AIRCRAFT WAS AIRTURNED BACK TO ILN, WHERE AIRCRAFT MADE AN UNEVENTFUL LANDING. FOUND RIGHT MAIN LANDING GEAR RETRACTION PIN BROKEN. REPLACED PIN IAW DC-8 S.B. 32-102.

Part: WIRE — BROKEN (MLG)

ALL BRAKE ACTION WAS LOST AT APPROXIMATELY 20 KIAS DURING ROLLOUT. FLIGHT CREW SELECTED ANTI-SKID OFF TO PREVENT AIRCRAFT FROM GOING INTO OVERRUN AREA. REPLACED ANTI-SKID CONTROL BOX IAW DC8 MM AND OPS CHECK WAS GOOD. FURTHER INVESTIGATION REVEALED BROKEN WIRES ON THE NR 2, NR 4, NR 6 AND NR 7 ANTI-SKID TRANSDUCERS. WIRING WAS REPAIRED IAW DC8 WDM AND OPS CHECK OF ANTI-SKID SYSTEM WAS GOOD.

Part: CONTROL BOX — DEFECTIVE (ANTI-SKID SYST)

BRAKES FAILED WITH ANTI-SKID SYSTEM ARMED WITH AIRCRAFT BELOW 15 KIAS ON LANDING. REPLACED ANTI-SKID CONTROL BOX IAW DC8 MM CHAPTER 32-43-6 AND OPS CHECK WAS GOOD.

Part: CONTROL CABLE — BROKEN (NR 2 PYLON)

NR 2 ENGINE FIRE SHUTOFF CABLE BROKEN IN PYLON. REPLACED PNEUMATIC SHUTOFF CABLE RUN 59.1 IN NR 2 PYLON AND OPS CHECK GOOD.

Part: PACKING — LEAKING (SLOT CONTL VLV)

ON CLIMB-OUT OF ONT, HYDRAULIC QUANTITY LOSS AND PRESSURE OF ZERO WAS INDICATED. RESERVOIR LOW PRESSURE LIGHT ILLUMINATED AT 6 GALLONS HYDRAULIC QUANTITY. REPACKED SLOT CONTROL VALVE. ALSO, REMOVED AND REPLACED NR 1 AND NR 2 HYDRAULIC PUMPS AND FILTERS IAW DC 8 MM.

Part: MFD DISPLAY UNIT — DEFECTIVE (COCKPIT)

DURING CRUISE, THE MULTIFUNCTION DISPLAY WENT BLACK AND MADE A 'GROWLING' NOISE. THERE WAS A SMELL OF SMOKE IN THE COCKPIT; CREW PULLED THE CIRCUIT BREAKER. REMOVED AND REPLACED THE MFD. SYSTEM OPS CHECKED GOOD IAW DC 8 MM CHAPTER 34.