N190YV

Part: UPLOCK SWITCH — OUT OF ADJUST (MLG) · airframe 21,989 hrs · 36,900 cycles

FLIGHT: 9237, DURING FLIGHT LANDING GEAR UNSAFE LIGHT FLASHES INTERMITTENTLY. ADJUSTED LT MAIN LANDING GEAR UPLOCK SWITCH.

Part: BRAKE — WEAK (MLG) · airframe 21,900 hrs · 36,792 cycles

FLIGHT: 9188 VPS/TPA, DURING TAXI BRAKES FEEL NORMAL BUT WILL NOT STOP THE AIRCRAFT, NEED TO APPLY STRONG PRESSURE. BLED ALL FOUR BRAKES.

Part: ACTUATOR — MALFUNCTIONED (LT MLG) · airframe 21,629 hrs · 36,490 cycles

DURING APPROACH "H" OF THE LT "H" LANDING GEAR POSITION INDICATING LIGHTS ONLY ILLUMINATED ON THE THIRD CYCLING OF THE LANDING GEAR. REPLACED LT MAIN LANDING GEAR ACTUATOR OPERATIONAL CHECK NORMAL.

Part: WIRE — CHAFED (MLG) · airframe 21,609 hrs · 36,461 cycles

DURING FLIGHT LANDING GEAR LIGHTS FLICKER WITH LIGHT INOPERATIVE IN FLIGHT. REPAIRED CHAFED WIRE UNDER AIRSTAIR DOOR. OPERATIONAL CHECK NORMAL. TEST FLIGHT SATISFACTORY.

Part: BOLT — BROKEN (LT MLG) · airframe 21,599 hrs · 36,449 cycles

DURING SCHEDULED ROUTINE MAINTENANCE DISCOVERED LT MLG UPPER ATTACH BOLT BROKEN. REPLACED LT MAIN LANDING GEAR UPPER DRAG LEG ATTACH BOLT, AIRFRAME FITTING AND DRAG BRACE ASSEMBLY.

Part: UPLOCK SWITCH — OUT OF ADJUST (LT MLG) · airframe 21,583 hrs · 36,428 cycles

FLIGHT: 9243 NAS/FLL, DURING FLIGHT LANDING GEAR RED UNSAFE LIGHT FLICKERED SEVERAL TIMES. ADJUSTED LEFT LANDING GEAR UPLOCK SWITCH. OPERATIONAL CHECK NORMAL.

Part: SWITCH — FAILED (MLG) · airframe 21,041 hrs · 35,785 cycles

ON APPROACH LANDING GEAR SELECTED DOWN GEAR HORN CANNOT BE SILENCED. CLEANED LANDING GEAR SILENCE BUTTON. OPS CHECK SATISFACTORY.

Part: BOLT — CRACKED (MLG) · airframe 20,926 hrs · 35,667 cycles

AT SCHEDULED INSPECTION DISCOVERED LEFT MAIN LANDING GEAR UPPER DRAG BRACE BOLT TO BE CRACKED IN TWO. CHECKED RIGHT DRAG BRACE UPPER BOLT AND DETERMINED IT ALSO TO BE CRACKED. REPLACED LEFT AND RIGHT DRAG BRACE ASSEMBLIES UPPER BOLTS.

Part: POWERPLANT — FLUCTUATES (RIGHT) · airframe 20,708 hrs · 35,412 cycles

FLIGHT: 9171, DURING FLIGHT AT 17,000 FEET, RT ENGINE TORQUE FLUCTATES FROM 3,000 LBS TO 2,500 LBS FOR 3 SECONDS. TORQUE STABLIZED AT 2,700 LBS FOR 10 SECONDS FOLLOWED BY ERRATIC TORQUE READINGS FROM 3,000 LBS TO 1,500 LBS WITH ITT AT 850 DEGREES. PERFORMED MEMORY ITEMS FOR ENGINE FAILURE IN FLIGHT TO SECURE ENGINE. DIVERTED, LANDED WITHOUT INCIDENT. REPLACED RT ENGINE ASSEMBLY.

Part: ENGINE — CONTAMINATED (RIGHT) · airframe 20,708 hrs · 35,412 cycles

FLIGHT: 9171, DURING FLIGHT AT 17,000 FEET RT ENGINE TORQUE FLUCTUATES FROM 3,000 LBS TO 2,500 LBS FOR 3 SECONDS. TORQUE STABILIZED AT 2,700 LBS FOR 10 SECONDS FOLLOWED BY ERRATIC TORQUE READINGS FROM 3,000 LBS TO 1,500 LBS WITH ITT AT 850 DEGREES. PERFORMED MEMORY ITEMS FOR ENGINE FAILURE IN FLIGHT TO SECURE ENGINE. DIVERTED TO FPO LANDED WITHOUT INCIDENT. THE REPORTED TORQUE FLUCTUATION AND HIGH ITT WAS CAUSED BY FRACTURE OF THE 1ST STAGE PT BLADES. THE PT BLADES FRACTURED BY OVERLOAD DUE TO LOSS OF RADIAL SUPPORT CAUSED BY OIL STARVATION AND SUBSEQUENT DISTRESS OF THE NR 3 BEARING. THE OIL STARVATION WAS CAUSED BY BLOCKAGE DUE TO CARBON BUILD UP.

Part: FILTER — ODOR (BLOWER) · airframe 20,670 hrs · 35,372 cycles

DURING FLIGHT OIL ODOR COMING FROM BLOWERS. REPLACED AFT BLOWER MOTOR FILTERS.

Part: RESERVOIR — OVERSERVICED (HYD SYSTEM) · airframe 20,589 hrs · 35,276 cycles

FLIGHT: 9199, AFTER TAKEOFF PINK FLUID LEAKAGE AND ODOR FOUND ON FIRST OFFICERS FLOORBOARD. RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. FOUND RESIDUAL HYDRAULIC FLUID DUE TO BRAKE RESERVOIR OVERSERVICE. CLEANED RESIDUAL HYDRAULIC FLUID. INSPECTED FIRST OFFICERS BRAKE MASTER CYLINDER AND BRAKE LINES NO LEAKS NOTED.

Part: WARNING HORN — MALFUNCTIONED (MLG) · airframe 19,769 hrs · 34,327 cycles

FLIGHT: 5402 PBI/FL - AFTER TAKEOFF, CANNOT SILENCE LANDING GEAR WARNING HORN WITH LANDING GEAR UP AND POWER LEVERS REDUCED. CLEANED LANDING GEAR HORN SILENCE SWITCH PERFORMED NUMEROUS OPERATIONAL CHECKS OF LANDING GEAR. COULD NOT DUPLICATE OPERATIONAL CHECK GOOD.

Part: WARNING SWITCH — INOPERATIVE (MLG)

FLIGHT 9133 VPS/TPA DURING APPROACH LANDING GEAR WARNING HORN NOT WORKING. REPLACED LANDING GEAR WARNING HORN SWITCH BUTTON.

Part: DOOR — OPEN (EMERGENCY EXIT) · airframe 16,012 hrs · 29,834 cycles

PAX PULLED EMERGENCY EXIT 4F. MAINTENANCE REINSTALLED AND AIRCRAFT RETURNED TO SERVICE. INSTALLED RT FWD EMERG HATCH EXIT.

Part: ACTUATOR — MALFUNCTIONED (MLG) · airframe 15,797 hrs · 29,452 cycles

AFTER LOWERING THE LANDING GEAR HANDLE, CREW DID NOT HAVE A GOOD DOWN AND LOCKED INDICATION FOR THE NOSE LANDING GEAR . ACFT RETURNED TO PFN, LANDED WITH NO FURTHER INCIDENT. REMOVED INSTALLED OVERHAULED NOSE WHEEL ACT, P/N 11238002223 S/N 48.

Part: LINE — LOOSE (P3 SUPPLY) · airframe 13,726 hrs · 27,211 cycles

ODOR OF FUMES FROM COCKPIT. TIGHTENED RT ENG P3 SUPPLY LINE B NUT. OPS CK NORMAL. NO FUMES NOTED

Part: ENGINE — FOD (RIGHT)

FLT 5872 - PIT-PKB - DURING TAKEOFF ROLL, ATC NOTIFIED THE CREW THAT THEY OBSERVED SPARKS FROM THE NR 2 ENGINE EXHAUST. ATC CALLED FOR EMERGENCY VEHICLES TO STANDBY. AIRCRAFT RETURNED TO THE FIELD WITHOUT FURTHER INCIDENT. CREW REPORTED NO GAUGE FLUCTUATION OF ANY KIND. MAINTENANCE REPLACED THE NR 2 ENGINE DUE TO FOD DAMAGE. ALL OPS CHECKS GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: SWITCH — OUT OF ADJUST (PAX DOOR)

FLT 5989 - MBS-PIT - EN ROUTE FROM SAGINAW TO PIT, PILOT REPORTED THE PAX DOOR ANNUNC ILLUMINATED. CREW DECLARED AN EMERGENCY AND DIVERTED TO DTW. THE DOOR WAS INSPECTED TO INSURE THAT IT WAS PROPERLY CLOSED AND LOCKED. MAINTENANCE ACTION WAS DEFERRED ON THE ANNUNC PER MEL 52-01. AIRCRAFT WAS RETURNED TO SERVICE. IN SUBSEQUENT MAINTENANCE, THE DOOR AJAR SWITCH WAS ADJUSTED AS NEEDED, OPS CHECK GOOD. (M)

Part: ATTACH BRACKET — EXCESS WEAR (RT FLAP)

FLEET CAMPAIGN, 'MAINTENANCE INSPECTED THE LT AND RT OTBD FLAP ATTACHMENT BRACKETS AND THE AFT ROLLER BEARING IAW RAYTHEON ACFT CO (RAC) SAFETY COMMUNIQUE NR 137 DATED MAY, 1997. FOUND ATTACHMENT BRACKETS WITH EXCESSIVE WEAR AND AFT ROLLER BEARINGS BINDING. AFFECTED COMPONENTS P/NS ARE BRACKET, LT INBD AND RT INBD, INBD HINGE, PN 35-165050-31. BRACKET, LT LTBD AND RT INBD, INBD HINGE, PN 35-165050-30. BRACKET, LT INBD AND RT OTBD, OTBD HINGE, PN 35-165050-35. BRACKET, LT OTBD AND RT INBD, OTBD HINGE, PN 35-165050-34. AFT BEARING ASSY, PN 114-521039-1. REF: CONTROL NR MASA97045. PART CYCLES, 5,743. ACFT TC, 5,743.