N131YV

Part: SWITCH ACTUATOR — OUT OF ADJUST (PAX DOOR) · airframe 22,598 hrs · 34,146 cycles

DURING CLIMBOUT APPROXIMATELY 30 MINUTES INTO THE FLIGHT, THE CABIN DOOR WARNING LIGHT CAME ON. CREW FOLLOWED CHECKLIST PROCEDURES & RETURNED TO STATION. DISCREPANCY WAS INITIALLY DEFERRED IAW MEL 52-1 AFTER IT WAS DETERMINED THAT THE INDICATION SYSTEM WAS IN NEED OF ADJUSTMENT. DMI WAS CLEARED BY ADJUSTING THE DOOR AJAR SWITCH ACTUATOR. THE SWITCH IS ACTUATED BY CONTACT WITH THE CABIN INTERIOR TRIM WHEN THE DOOR IS CLOSED. THE PLASTIC TRIM WEARS FROM CONTACT WITH THE ROLLER ON THE SWITCH ACTUATOR, CAUSING NEED FOR ADJUSTMENT. THE SWITCH & ACTUATOR IS LOCATED BELOW THE BOTTOM DOOR STEP & WEAR IS ACCELERATED DURING WINTER MONTHS BY GLYCOL, SLUSH & RAMP DEBRIS THAT ENDS UP ON THE ROLLER.

Part: RIB — CORRODED (RT WING) · corrosion level 3 · airframe 20,927 hrs · 30,435 cycles

PITTING CORROSION WAS FOUND ON THE RIGHT WING INBOARD MILLED RIB ON THE LOWER FLANGE ADJACENT, BUT NOT AFFECTING, THE RIVET HOLE INBOARD OF THE WING DRAIN LOCATED JUST OUTBOARD OF THE NACELLE IN THE WING LEADING EDGE. THE DAMAGE AREA IS APPROXIMATELY .3 INCH WIDE BY .05 INCH DEEP.

Part: BRAKE ASSY — ICED (MLG) · airframe 19,417 hrs · 30,206 cycles

ON TAXI OUT, A/C SLOWED TO A STOP ON THE ACTIVE TAXI WAY ENTERING THE RUNWAY AND WOULD NOT PROGRESS FWD. MX REMOVED ICE FROM THE BRAKES, A/C THEN WAS ABLE TO MOVE AND RETURNED TO GATE WITH NO FURTHER INCIDENT. CLEANED LEFT AND RIGHT BRAKES WITH DEICING FLUID.

Part: SWITCH — FAILED (TE FLAPS) · airframe 18,805 hrs · 29,324 cycles

AFTER TAKE OFF, FLAPS WOULD NOT RETRACT. ACFT RETURNED TO THE FIELD. MAINTENANCE WAS CALLED. REMOVED AND REPLACED FLAP SPLIT FLAP SWITCH.

Part: SWITCH — DIRTY (TE FLAPS) · airframe 18,797 hrs · 29,313 cycles

AFTER TAKEOFF FLAPS WOULD NOT RETRACT. AIRCRAFT RETURNED TO THE FIELD, MAINTENANCE WAS CALLED. CLEANED FLAP SAFETY SWITCHES.

Part: ENGINE — MALFUNCTIONED · airframe 18,642 hrs · 29,079 cycles

AFTER TAKEOFF CREW TURN ON BLEED MODE MAN COOL. CAPTAIN NOTED ITT WAS CLIMBING AT 780C. TORQUE HAD DROPPED TO 2500LB. TEMP STABILIZED BUT TORQUE CONTINUED TO DROP. THEN IT GOT TO 2000LB CREW DECLARED EMERGENCY AND RETURNED TO FIELD. LANDED SAFELY WITH NO FURTHER INCIDENT. NO DEFECTS NOTED, OPS CK NORMAL.

Part: ANNUNCIATOR — MALFUNCTIONED (MLG) · airframe 17,873 hrs · 27,891 cycles

ON APPROACH TO DRO WHEN GEAR WAS EXTENED. 3 GREENS WOULD NOT ILLUM LANDING GEAR IND C.B. POPPED GREEN NOTIFIED. MX CTRL ADVISED TO RETURN TO FMN. AIRCRAFT THEN RETURNED TO FMN DECLARED EMERGENCY AND LANDED WITH NO FURTHER INCIDENT. R & R ANNUNCIATOR PWR SOURCE PCB & WIRES ON HARN. P/N 129-364079-7. S/N 842A93

Part: RIVET — LOOSE (FUSELAGE) · airframe 5,725 hrs · 16,359 cycles

WHILE PERFORMING AN ABC STRUCTURAL INSPECTION, TWO RIVETS WERE FOUND TO BE LOOSE ON THE RIGHT SIDE OF THE FUSELAGE AT APPROXIMATELY FS 220.75, STRINGER 5R. REPAIR ACCOMPLISHED. NO TEAR DOWN REPORT WILL BE REQUIRED.

Part: HINGE — CRACKED (FUSELAGE) · airframe 5,725 hrs · 16,359 cycles

DURING ABC CHECK, THE CARGO DOOR HINGE WAS FOUND CRACKED. REPLACED HINGE IN ACCORDANCE WITH BEECH SRM 52-90-01. NO TEAR DOWN REPORT WILL BE REQUIRED.

Part: CLIP — CRACKED (FUSELAGE) · airframe 5,725 hrs · 16,359 cycles

DURING ABC CHECK, A RIGHT HAND CLIP WAS FOUND CRACKED. REPLACED CLIP IN ACCORDANCE WITH BEECH SRM 53-90-23. NO TEAR DOWN REPORT WILL BE REQUIRED.

Part: GAS GENERATOR — FAILED (NR 2 ENGINE) · airframe 15,577 hrs · 24,641 cycles

CREW WAS ON TAKE OFF ROLL WHEN POWER WAS APPLIED TO THE NR 2 ENGINE. THE CREW HEARD A LOUD BANG FROM THE RIGHT SIDE OF THE AIRCRAFT. THEY ABORTED THE TAKE OFF AND TAXIED BACK DOWN TO THE GATE. THEY PROCEEDED TO PERFORM A CHECKLIST BY VISUALLY INSPECTING ENGINE FROM THE CABIN. MAINTENANCE REMOVED AND REPLACED THE GAS GENERATOR. THE TEARDOWN REPORT REVEALED THAT THE GAS GENERATOR CASE WAS FOUND WITH ONE DIFFUSER PIPE LOOSE AND IT WILL BE REPAIRED.

Part: UPLOCK SWITCH — FAILED · airframe 14,738 hrs · 23,460 cycles

AFTER TAKE OFF FROM ENID OKLAHOMA TO DENVER COLORADO ON FLIGHT 2501, THE CREW RETRACTED THE LANDING GEAR AFTER A POSITIVE RATE OF CLIMB WAS ESTABLISHED. WHEN THE GEAR WAS SELECTED UP, THE GEAR TRANSIT INTRANSIT LIGHT WOULD NOT EXTINGUISH. THEREFORE THE AIRCRAFT RETURNED TO ENID OKLAHOMA WITH NO FURTHER INCIDENT. THE MAINTENANCE PERFORMED A WALK AROUND INSPECTION. THE CORRECTIVE ACTION WAS THAT THEY REMOVED AND REPLACED THE LEFT HAND MAIN LANDING GEAR UPLOCK SWITCH. NO TEARDOWN REPORT WILL BE REQUIRED.

Part: SWITCH — DIRTY (CARGO DOOR)

FLT 5323 - BOSPQI - CARGO DOOR ANNUNCIATOR ILLUMINATED IN FLIGHT. PILOT DECLARED AN EMERGENCY AND AIRCRAFT DIVERTED TO MHT. ONCE ON THE GROUND VERIFIED DOOR CLOSED AND MAINTENANCE ACTION WAS DEFERRED PER MEL 5202. AIRCRAFT WAS RETURNED TO SERVICE. IN SUBSEQUENT MAINTENANCE, THE CARGO DOOR LOCK MICROSWITCHES WERE CLEANED, 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, 8,285. ACFT TC, 8,285.

Part: ATTACH BRACKET — EXCESS WEAR (LT 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, 8,285. ACFT TC, 8,285.

Part: ACTUATOR — FAILED (RT MLG)

HYDRAULIC MAIN GEAR ACTUATOR ON RIGHT MAIN GEAR LEAKING FLUID FROM THREADED PISTON HOUSING NEAR FORWARD BOSS. REMOVED AND REPLACED MAIN GEAR ACTUATOR WITH NEW SERVICEABLE ACTUATOR PER BEECH MM, OPERATIONAL AND LEAK CHECK GOOD.

Part: EXHAUST STACK — CRACKED (LT ENGINE)

LEFT ENGINE OUTBOARD EXHAUST STACK CRACKED ABOUT 1.50 INCHES LONG AT BLAST TUBE EXHAUST PORT. CRACK AT WELD BEAD PROGRESSING CIRCUMFERENTIALLY AROUND TUBE. REMOVED AND REPLACED EXHAUST STACK.