N826QS

ATA 5700

Part: TUBE — CHAFED (LT WING) · airframe 5,886 hrs · 4,713 cycles

LEFT WING LEADING EDGE RAM AIR TUBING IS CHAFED INTO FUSELAGE SKIN. FOUND DURING WING HEATED LEADING EDGE AND PLUMBING INSPECTION TASK 30-14-00-210 ON THE PHASE 5. BLENDED LEFT FUSELAGE FEED THRU DOUBLER AT THE LEFT WING ROOT AND INSTALLED FABRICATED FEED THRU DOUBLER. PERFORMED ULTRASONIC THICKNESS AND EDDY CURRENT INSPECTIONS, REVEALED NO CRACK INDICATIONS.

ATA 3240

Part: CIRCUIT BREAKER — UNSERVICEABLE (BRAKE SYSTEM) · airframe 5,381 hrs · 4,323 cycles

LOW BRAKE PRESSURE AND ANTI-SKID INOPERATIVE, ANNUNCIATOR LIGHTS ILLUMINATED. COMPLETE LOSS OF NORMAL BRAKING. IAW CHECK LIST, CHECKED THE POWER BRAKES CIRCUIT BREAKER, WHICH WAS POPPED. RESET THE POWER BRAKES CIRCUIT BREAKER, RESUMED NORMAL BREAKING, BOTH ANNUNCIATORS LIGHTS EXTINGUISHED. UNKNOWN REASON WHY THE POWER BREAKS CIRCUIT BREAKER POPPED. BEFORE APPLYING POWER TO THE AIRCRAFT, CHECKED CIRCUIT BREAKER FOR CONTINUITY, INTERNAL RESISTANCE, AND ACTUATION. AS SOON AS THE CIRCUIT BREAKER WAS ACTUATED, IT WAS OBVIOUS THE INTERNAL LATCH HAD BEEN COMPROMISED. THIS IS NORMAL FOR HIGH-TIME BREAKERS. THE INSIDE BUILDS UP CONDENSATION, AND THE LATCH AND CONTACTS CORRODE, CAUSING MUSHY ACTUATION. APPLIED POWER TO THE AIRCRAFT, AND PERFORMED ANTI-SKID BRAKE SYSTEM CHECK IAW MM CHAPTER 32-42-00. PRESSURES ALL APPEARED NORMAL, AND RATE OF PRESSURE CLIMB WAS AS EXPECTED. PUMPED BRAKES FOR 15 MINUTES TO ALLOW PUMP TO RUN CONSTANTLY, AND PLACE AS MUCH STRAIN ON THE PUMP AND ELECTRICS AS POSSIBLE. NO DEFECTS NOTED. GAINED ACCESS TO THE CIRCUIT BREAKER BY OPENING LT CIRCUIT BREAKER PANEL IAW CHAPTER 24-50-02. REMOVED DEFECTIVE BREAKER AND REPLACED WITH NEW UNIT. PERFORMED ANTI-SKID BRAKE SYSTEM CHECK AGAIN IAW MM CHAPTER 32-42-00. ALL CHECKS GOOD.

ATA 3222

Part: BEARING — MISMANUFACTURED (NLG) · airframe 3,921 hrs · 3,149 cycles

FOUND INSTALLED BEARING, SUSPECTED PN 5542308-7, DID NOT FULLY SEAT TO THE PISTON WHEN TIGHTENED ONTO THE PISTON. CLOSER EXAMINATION OF THE INSIDE OF THE BEARING REVEALED AN OFFSET OF THE MACHINED PORTION SURROUNDING THE METERING PIN HOLE. THAT OFFSET, NOT CONCENTRIC WITH THE BODY OF THE BEARING, CAUSED THE PISTON TO CONTACT THE MACHINED PORTION & STOP PRIOR TO FULL SEAT OF THE PISTON TO THE BEARING.

ATA 3222

Part: BEARING — WRONG PART (NLG STRUT) · airframe 3,921 hrs · 3,149 cycles

FOUND BEARING, ASSUMED TO BE PN 5542308-7, INSTALLED IN NLG ASSEMBLY, PN 6642000-74. THE STRUT WAS DISASSEMBLED FOR A RESEAL IAW OPERATOR'S REQUEST. DURING DISASSEMBLY OF THE STRUT ASSEMBLY THE BEARING WAS DISCOVERED TO BE THE WRONG ONE. REPLACED BEARING WITH PN 6642308-3 WHICH IS CALLED OUT IN THE EFFECTIVITY OF THE INSTALLED STRUT. THE WRONG BEARING DID NOT FULLY SEAT ONTO THE PISTON ASSEMBLY WHICH OFFSET THE SET SCREWS & MARRED THE PISTON ASSEMBLY. THAT NECESSITATED REPLACEMENT OF THE PISTON ASSEMBLY AS WELL. NO OTHER DEFECTS REGARDING THE PERFORMANCE OF THE NOSE GEAR WERE EITHER OBSERVED OR REPORTED.

ATA 3231

Part: TORQUE TUBE — CRACKED (NLG DOOR) · airframe 3,144 hrs · 2,531 cycles

NLG DOOR TORQUE TUBE ASSY CRACKED AT WELD ON RT SIDE. INSTALLED NEW NLG TORQUE TUBE ASSY, PN 5542102-9, REF MM 32-21-01.

ATA 3241

Part: MOTOR — MALFUNCTIONED (ANTI SKID SYS) · airframe 1,007 hrs · 867 cycles

AFTER TOUCHDOWN, THE BRAKES HAD NO EFFECTIVENESS. THE "LO BRAKE PRESS" AND "ANTI SKID" ANNUNCIATORS WERE ILLUMINATED WITH THE MASTER CAUTION. STOPPED THE ACFT WITH THRUST REVERSERS AND THE ANNUNCIATORS EXTINGUISHED AND NORMAL BRAKES BEGAN WORKING AGAIN. HAD PREVIOUSLY NOTED A 'WHOSHING' NOISE COMING FROM THE PEDAL ASSY. R & R ANTI-SKID MOTOR.

ATA 2121

Part: FAN — NOISY (AVIONICS) · airframe 1,000 hrs · 863 cycles

BUZZING AVIONICS FAN NOISE HEARD AT FL410. NOISE NOT HEARD BELOW 10,000 FEET.

ATA 3240

Part: BRAKE SYS — MALFUNCTIONED (MLG) · airframe 557 hrs · 486 cycles

BOTH COPILOT'S BRAKE PEDALS FEEL SOFT AND MAKE A "WHOOSING" NOISE THAT SOUNDS LIKE A LEAK WHEN THE PEDALS ARE PRESSED. BLEED BRAKES LEFT AND RIGHT CO-PILOTS SIDE IAW MM 32-40-00. OPS CHECK GOOD NO LEAKS.

ATA 3240

Part: BRAKE SYS — MALFUNCTIONED (MLG) · airframe 557 hrs · 486 cycles

BOTH COPILOTS BRAKE PEDALS FEEL SOFT AND MAKE A "WHOOSING NOISE THAT SOUNDS LIKE A LEAK WHEN THE PEDALS ARE PRESSED. BLEED BRAKES LEFT AND RIGHT CO-PILOTS SIDE IAW MM 32-40-00. OPS CHECK GOOD NO LEAKS.

ATA 5210

Part: PIN — STUCK (PAX DOOR)

MAIN CABIN DOOR STUCK CLOSED. CANNOT ENTER ACFT. DOOR HANDLE MOVEMENT SEEMS NORMAL. DOOR PINS WILL NOT RETRACT. (S)

ATA 5210

Part: SOCKET — LACK OF LUBE (PAX DOOR) · airframe 207 hrs · 188 cycles

MAIN CABIN DOOR STUCK CLOSED. CAN NOT ENTER ACFT. DOOR HANDLE MOVEMENT SEEMS NORMAL. DOOR PINS WILL NOT RETRACT. USED MORE THEN NORMAL, FORCE TO OPEN DOOR. FOUND LOWER FWD DOOR PAN TO BE HANGING UP ON POLISHED DOOR SOCKET. LUBRICATED AND PERFORMED OPS CHECK, OPS CHECK GOOD IAW MM CHAP 52-10-01.