N389QS

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 16,634 hrs · 10,422 cycles

EMERGENCY LIGHT ABOUT MED INOP. ALSO FORWARD FACING EMERGENCY LIGHT ON LEFT SIDE IS FLICKERING. PLEASE SEE PHOTO/ VIDEO CORRECTIVE ACTION: REMOVED #1 E-BATT PN 6430028-1 SN F24-11024 AND INSTALLED A NEW BATT PN 6430028-1 SN K2511703. REMOVED #4 E-BATT PN 6430028-1 SN F25-11360 AND INSTALLED A NEW BATT PN 6430028-1 SN K25-11702.OPS CHECKS GOOD AT THIS TIME. WORK REF CE680 MM 33-50-10 & 33-50-00.

Part: BATTERY PACK — FAILED (ZONE 200) · airframe 15,505 hrs · 10,333 cycles

MAIN DOOR EMERGENCY EXIT LIGHT AND BOTH EXIT LIGHTS BESIDE MAIN CABIN DOOR APPEAR INOP. THEY DID NOT COME ON WITH EMER LIGHT CHECK OR WITH SWITCH SELECTED ON AFTER RUNNING APU FOR THE PREFLIGHT CHECKS. COMPLETED VISUAL INSPECTION OF EMERGENCY BATTERY POWER SUPPLY AND FOUND THE BATTERY PACK PROTRUDING FROM THE ENCLOSURE. REMOVED BATTERY PACK AND FOUND ALIGNMENT TABS BENT. STRAIGHTENED ALIGNMENT TABS AND REINSTALLED BATTERY PACK. EMERGENCY BATTERY TOP CHARGED. PERFORMED CAP CHECK.

Part: SPAR — CORRODED (ZONE 500) · airframe 15,326 hrs · 10,200 cycles

REPAIRED CORROSION ON THE LH WING AFT WING SPAR WEB LOCATED AT THE #4 SPOILER HYDRAULIC CARRY-THROUGH FITTINGS AND THE RH WING AFT WING SPAR WEB AT THE #9 SPOILER HYDRAULIC CARRY-THROUGH FITTINGS, BY R&R THE FITTINGS, BLENDING CORRODED AREAS, PERFORMING NDT, AND REPORTING OR REPAIR DISPOSITION. REPAIRED AREA PER NETJETS REQUEST FOR TECHNICAL SERVICES BY CLEANING, TREATING AND PRIMING REPAIR AREAS.

Part: SPAR — CORRODED (ZONE 600) · airframe 15,326 hrs · 10,200 cycles

REPAIRED CORROSION ON THE RH WING AFT WING SPAR WEB LOCATED AT THE INBOARD AND OUTBOARD HYDRAULIC CARRY-THROUGH FITTINGS BY R&R FITTINGS, BLENDING CORRODED AREAS, PERFORMING NDT, AND REPORTING OR REPAIR DISPOSITION. REPAIRED AREA PER NETJETS REQUEST FOR TECHNICAL SERVICES BY CLEANING, TREATING AND PRIMING REPAIR AREAS.

Part: SPAR — CORRODED (ZONE 100) · airframe 15,326 hrs · 10,200 cycles

MECHANICALLY REMOVED 1 AREA OF CORROSION LOCATED INSIDE RH GEARWELL BAY 720DR ON AFT SPAR WEB AND MECHANICALLY REMOVED 1 AREA OF CORROSION LOCATED INSIDE LH GEARWELL BAY 730DL ON AFT SPAR WEB. PERFORMED NDT AND REPORTING OR REPAIR DISPOSITION. REPAIRED AREA PER NETJETS REQUEST FOR TECHNICAL SERVICES BY CLEANING, TREATING AND PRIMING REPAIR AREAS.

Part: SKIN — CORRODED (ZONE 600 AILERON) · airframe 15,326 hrs · 10,200 cycles

REPAIRED CORROSION ON THE RH AILERON LOWER SKIN BY BLENDING, PERFORMING NDT, AND REPORTING OR REPAIR DISPOSITION. REPAIRED AREA NETJETS REQUEST FOR TECHNICAL SERVICES BY CLEANING, TREATING AND PRIMING REPAIR AREA, FABRICATING AND INSTALLING REPAIR DOUBLER.

Part: SCREW — LOOSE (RT WING) · airframe 15,279 hrs · 10,167 cycles

THE AIRCRAFT WAS ON A FERRY LEG FROM KSWO TO KDAL AND WAS FLOWN AT 17000, ON AN INITIAL SIGHTING OF A THUNDERSTORM WE TURNED WEST FROM A SOUTH WEST ARRIVAL HEADING AND DESCENDED FROM 17000 TO 9000 AND REDUCED AIRSPEED THE AIRCRAFT WAS IN A CLEAN CONFIGURATION AND SPEED REDUCED TO 200KTS. FLOW TO DALLAS HAD JUST BEEN OPENED AND TURBULENCE WAS EXPECTED. WE WERE IN VMC CONDITIONS AT THE TIME OF SEVERE TURBULENCE. WE WERE ON SUTOPILOT AT THE TIME SND AT NO POINT DID IT DISENGAGE. THE WEIGHT OF THE AIRCRAFT INCLUDED 2800-3100 LBS OF FUEL CORRECTIVE ACTION; TECHS PERFORMED THE SEVERE AIR TURBULENCE OR SEVERE MANEUVERS INSPECTION PER AMM 05-50-00. FOUND LOOS SCREWS ON RT WING LEADING EDGE. RESECURED FASTERNS AS REQUIRED PER AMM 20-10-65. NO FURTHER DEFECTS NOTED.

Part: LIGHT — NO DISCREPANCY (ZONE 200) · airframe 15,202 hrs · 10,104 cycles

CABIN EMERG LIGHT: MAIN DOOR EXIT EMER LIGHT OFF WITH SWITCH IN ON POSITION. CORRECTIVE ACTION: OPERATIONAL CHECK OF MAIN DOOR EXIT EMER LIGHT NORMAL IAW CE-680 AMM 33-50-10.

Part: LIGHT — NO DISCREPANCY (ZONE 200) · airframe 15,178 hrs · 10,084 cycles

WITH APU RUNNING ON GROUND AFTER FLIGHT EMERGENCY LIGHTS IN CABIN AND OVER WING FLICKER OR GO OUT AND THEN COME BACK ON. COMPLIED WITH OPERATIONAL CHECKS OF THE EMERGENCY LIGHTING SYSTEM FOR 10 MINUTES. ATTEMPTED TO DUPLICATE ITEM WITH BATTERIES, APU, AND EXTERNAL POWER. NO FURTHER DEFECTS NOTED. COULD NOT DUPLICATE. TECHS WILL COMPLETE TC-FLT-33-1001 AS REQUESTED BY MCC. ALL WORK COMPLETED IN REFERENCE WITH MAINTENANCE MANUAL CHAPTER 33-50-00. COMPLIED WITH TC-FLT-33-1001 EMERGENCY LIGHTING POWER SUPPLY BATTERY EXERCISE PROCEDURE). NO DEFECTS NOTED. REFERENCE TC-FLT-33-1001 REV 2 DATED 20OCT2022.

Part: BATTERY PACK — DEFECTIVE (ZONE 200) · airframe 15,076 hrs · 10,026 cycles

EMERG LIGHT SWITCH: WITH THE EMER LTS SWITCH IN THE ON POSITION, ALL EMER LIGHTS, WITH THE EXEPTION OF THE GALLEY WORK LIGHT AND THE MAIN DOOR EXIT SIGN ILLUMINATE. WHEN THE EMER LTS SWITCH IS PLACED IN THE ARM POSITION AND THE PAX SAFETY BUTTON IS PUSHED ON, ALL EMERGENCY LIGHTS, INTERIOR AND EXTERIOR, WILL NOT ILLUMINATE. REPEAT WRITE-UP. CORRECTIVE ACTION; REPLACED #1 EMERGENCY BATTERY AND CHARGER ASSEMBLY IAW THE CESSNA MODEL 680A M/M CHAPTER 33-50-10. OPS CHECK SATISFACTORY.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 15,067 hrs · 10,021 cycles

EMERG LIGHT SWITCH: EMERGENCY LIGHTS DO NOT WORK IN ARM POSITION, BUT DO ILLUMINATE IN THE ON POSITION. MAIN EXIT EMERGENCY LIGHTING DOES NOT WORK IN EITHER POSITION. CORRECTIVE ACTION; REPLACED #3 BATTERY PACK, BLOWN FUSE IN #2 BATTERY PACK AND INERTIA SWITCH IAW CE-680 AMM 33-55-10. PERFORMED STISFACTORY OPS CHECK.

Part: FUSE — BLOWN (ZONE 200) · airframe 15,045 hrs · 10,006 cycles

EMERGENCY LIGHTING: WHEN THE EMER LIGHT SWITCH IS PLACED IN THE ARMED POSITION AND THE PAX SAFETY SWITCH IS ON, ALL EMER LIGHTS REMAIN OFF AND NO AUDIBLE CHIME WITH OR WITHOUT DC POWER APPLIED. WHEN THE SWITCH IS MOVED TO THE ON POSITION, THE EMER LIGHTS ILLUMINATE. THE MAIN CABIN EXIT LIGHT AND THE OVERHEAD GALLEY LIGHT DO NOT ILLUMINATE REGARDLESS OF SWITCH POSITIONS. CORRECTIVE ACTION: REPLACED FUSE. OPS CHECK GOOD. IAW CE680 AMM 33-50-10

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 15,016 hrs · 9,985 cycles

PAX SAFETY BUTTON SELECTED ON DURING DECENT, THE EMERGENCY LIGHTS DID NOT COME ON. RETESTED LIGHTS ON THE GROUND AND ONLY 1 EMERGENCY LIGHT NEXT TO THE LAV ILLUMINATES. ALL OTHER EMERG LIGHTS REMAIN OFF. REPLACED BATTERY PACK AND OPS CHECK GOOD IAW AMM 33-50-10.

Part: SIGN — INOPERATIVE (ZONE 200)

EMERG EXIT SIGN/LIGHT: THE RED EXIT SIGN ON THE VERTICAL POST FORWARD OF THE MAIN ENTRY DOOR DOES NOT ILLUMINATE WHILE TESTING THE EMERGENCY LIGHTS. VERIFIED DISCREPANCY. REMOVED FWD MED INTERIOR UPHOLSTERY. INSPECTED WIRING AND SECURITY OF CONNECTION. NO DEFECTS NOTED. DISCONNECTED LIGHT ASSY. VERIFIED VOLTAGE AT CONNECTOR. INSPECTED PLUG ON LAGHTING SIDE, AND FOUND THE CONTACT PUSHED BACK IN CONNECTOR. USED INSERTION TOOL TO ENGAGE CONTACT. RECONNECTED CONNECTOR AS REQUIRED. OPS CHECK GOOD. RE SECURED FORWARD DOOR INERIOR UPHOLSTERY. NO DEFECTS NOTED. REFERENCED CE-680 WIRING DIAGRAM 33-50-01 & MM CHAP 33-50-10 / MULTIMETER: JE1572

Part: TENSIONER — LOOSE (MAIN DOOR)

MAIN DOOR: MAIN DOOR HAS NO BALENCE TENSION GOING UP OR DOWN. OPENS-FALLS DOWN. HAVE TO USE FORCE TO GET UP. OPENED DOOR, VERIFIED DISCREPANCY CONDITIONS. REMOVED CABIN DOOR REEL COVERS, VERIFIED TENSIONS TO BE LOW. AFTER MULTIPLE ATTEMPTS, ADJUSTED CABLE TENSIONS TO 210LBS. PERFORMED SATISFACTORY OPS CHECK, INTERNAL AND EXTERNAL. COTTERPINNED SHEAVE PINS. CLOSED UP ACCESS PANELS. REF. CE680 AMM CH 52-10-50. TENSIONMETER USED JE2111

Part: SKIN — CORRODED (ZONE 100) · airframe 14,946 hrs · 9,933 cycles

REPAIRED CORROSION OF TAILCONE L/H, R/H, AND MIDDLE LOWER SKIN ASSEMBLIES UNDER AFT CHIN FAIRING PER AQRD ERO-981949 REV. IR TITLED "N389QS AFT TAILCONE SKIN CORROSION REPAIR" DATED OCT 24, 2024. SUPPORTED BY FAA FORM 8110-3 DATED 10/24/2024.

Part: FUSE — BLOWN (ZONE 200)

SEVERAL CABIN EMERGENCY LIGHTS FAILED PREFLIGHT EMERGENCY LIGHT TEST. MISSING ALL MAIN ENTRY LIGHTS UPPER AND LOWER, FORWARD READING LIGHTS AND HALF OF THE LEFT FORWARD FLOOR LIGHT. RAN APU TO COMPLETE THE REST OF PREFLIGHT. AFTER SHUT DOWN TESTED AGAIN AND SAME LIGHTS STILL FAILED. AFTER SHUT DOWN TESTED AGAIN AND SAME LIGHTS STILL FAILED.REMOVED FAILED #1 BATTERY PACK FUSE PN: S2565-5 AND INSTALLED OPS CHECKS GOOD IAW AMM 33-50-10.

Part: COUNTERWEIGHT — OUT OF ADJUST (MAIN DOOR)

MAIN CABIN DOOR COUNTERWEIGHT NEEDS ADJUSTMENT - UNABLE TO CRACK DOOR WITHOUT IT FALLING OPEN. REMOVED DEFECTIVE FWD COUNTER BALANCE SPRING PN 6911319-202 NSN AND INSTALLED A NEW COUNTERBALANCE SPRING. ALSO REPLACED LUBRICATED SPRING AFT POSITION PN 6911319-202 NSN IAW AMM 52-10-50.

Part: BATTERY — DEFECTIVE (EMERGENCY LIGHTS) · airframe 14,729 hrs · 9,770 cycles

EMERGENCY EXIT LIGHTS OVER EMERGENCY EXIT AND ON BULKHEAD SEAT BEHIND SEAT 9 FAIL PREFLIGHT TEST. MUST REPEAT RECHARGE PROCEDURE TO MAINTAIN CHARGE. REMOVED EMERGENCY LIGHTING BATTERY #4 P/N: CBS28-1 S/N: 008896 AND INSTALLED CUSTOMER SUPPLIED REPAIRED EMERGENCY LIGHTING BATTERY P/N: CBS28-L S/N: 005425 BATTERY DATED 05/23/24 IAW C680 AMM 33-50-10. NO DEFECTS NOTED. OPS CHECK FOUND FUNCTIONAL.

Part: ROLLER — OUT OF ADJUST (MAIN DOOR) · airframe 14,715 hrs · 9,754 cycles

MAIN ENTRY DOOR HANDLE EXTREMELY HARD TO OPEN. THE MAIN ENTRY DOOR HANDLE IS BINDING AND EXTREMELY HARD TO GET OPEN AND CLOSED. IT FEELS LIKE THE MECHANISM IN THE DOOR IS BINDING AS IT GOES OVER CENTER. RESOLUTION: FOUND THE FORWARD AND AFT MIDDLE LATCH ROLLER ECCENTRICS ADJUSTMENT. ADJUSTED FORWARD AND AFT MIDDLE LATCH ROLLER REQUIRING ECCENTRICS JAW CE 680 AMM 52-10-00 PERFORMED MULTIPLE OPS CHECKS WITH NO FURTHER DEFECTRS NOTED.

Part: DOOR — OUT OF ADJUST (MAIN) · airframe 14,715 hrs · 9,754 cycles

OPENING DOOR FIRST THING IN THE MORNING. AFTER UNLOCKING HANDLE IT WAS EXTREMELY DIFFICULT TO OPEN THE HANDLE. THEN TO OPEN THE DOOR IT REQUIRED AN EXTREME AMOUNT FORCE TO PULL THE ACTUAL DOOR OPEN. THE DOOR OPENED ABOUT A FOOT AND STUCK. I CLOSED THE DOOR, AGAIN HAVING TO PUSH HARD TO SEE IF I COULD GET IT TO CYCLE CLOSED AND OPEN. NOW THE DOOR IS STUCK CLOSE, AND THE DOOR HANDLE IS STUCK IN THE OPEN POSITION AND I CANNOT MOVE IT CLOSED NOR MOVE THE DOOR AT ALL. AFTER FURTHER EXAMINATION, IT APPEARS AS IF THE DOOR MAY BE SLIGHTLY COCKED IN THE OPENING COUNTERCLOCKWISE. THE FWD EDGE OF THE DOOR SKIN OVERLAPS THE FUSELAGE SKIN VERY SLIGHTLY, AND THE AFT SKIN HAS MORE OF A GAP. //SIGNOFF// REMOVED MAIN ENTRANCE DOOR TOP STEPHAN SPADE DOOR TO GAIN ACCESS TO TROUBLESHOOT DOOR GAP. GAINED ACCESS TO AFT HINGE ECCENTRICS AND ATTEMPTED TO ADJUST DOOR FWD CLEARANCE. UNABLE TO ADJUST THE CLEARANCE FROM THE AFT HINGE ECCENTRICS. GAINED ACCESS TO FWD HINGE ECCENTRICS AND ADJUSTED THE DOOR CLEARANCE 0.050 INCH. REINSTALLED ECCENTRICS RETAINERS IAW CE-680 AMM 25-10-00. GAINED ACCESS TO CABIN DOOR AND FOUND LH AND RH TOP 2 LATCH ROLLERS CATCHING LATCH EARLY. LOOSEN LATCH ROLLER ECCENTRICES AND ADJUSTED UNTIL LATCH ROLLERS DO NOT TOUCH LATCHES. ROLLERS WERE ROTATED 180 DREMOVED MAIN ENTRANCE DOOR TOP STEPHAN SPADE DOOR TO GAIN ACCESS TO TROUBLESHOOT DOOR GAP. GAINED ACCESS TO AFT HINGE ECCENTRICS AND ATTEMPTED TO ADJUST DOOR FWD CLEARANCE. UNABLE TO ADJUST THE CLEARANCE FROM THE AFT HINGE ECCENTRICS. GAINED ACCESS TO FWD HINGE ECCENTRICS AND ADJUSTED THE DOOR CLEARANCE 0.050 INCH. REINSTALLED ECCENTRICS RETAINERS IAW CE-680 AMM 25-10-00 DEGREES. PERFOMED MULTIPLE OPS CHECK NO DEFECTS NOTED DOOR OPERATES SMOOTHLY. WORK DONE IN REF. TO CE-680 AMM 52-10-00. LUBRICATED ALL DOOR ROLLERS AS WELL AS ALL DOOR LATCHING MECHANISM'S. OPERATED DOOR MECHANISM BY OPENING AND CLOSING THE MAIN DOOR SEVERAL TIMES. THIS HAS THE MAIN DOOR OPENING SMOOTHLY OPERATIONAL CHECKED GOOD NO FURTHER DEFECTS NOTED. ALL WORK DONE IN REF. TO CE-680 AMM 52-10-00.

Part: SEAL — LEAKING (MAIN DOOR) · airframe 14,675 hrs · 9,728 cycles

WHEN CLIMBING OUT BETWEEN APPROX 8000FT AND 11500FT THERE IS A LOUD WHISTLING SOUND COMING FROM THE MAIN CABIN DOOR. IT THEN GOES COMPLETELY AWAY AFTER HITTING 11,500FT. REMOVED MAIN CABIN DOOR PRIMARY DOOR SEAL AND REPLACED WITH CUSTOMER PROVIDED MAIN CABIN PRIMARY DOOR SEAL OPS AND LEAK CHECK GOOD AT THIS TIME. ALL WORK DONE PER'CE 680 AMM 52-10-10

Part: SPAR SPLICE — CRACKED (LT WING) · airframe 14,664 hrs · 9,718 cycles

CRACK INDICATIONS, CENTER WING, CENTER SPAR SPLICE, WS 18 TO WS 37. ACCOMPLISHED ENGINEERING FIELD REPAIR FR-680-0149-12602 REV A . CRACK INDICATIONS, CENTER WING, CENTER SPAR SPLICE, WS 18 TO WS 37.

Part: TRUNNION — CORRODED (RT MLG) · airframe 14,664 hrs · 9,718 cycles

CORROSION, RH MLG, TRUNNION, TRAILING LINK ATTACH LUGS. ACCOMPLISHED TEXTRON AVIATION FIELD REPAIR FR-680-0149-12564 REV A DATED 25 OCT 2023 AND FAA FORM 8100-9 DATED 25 OCT 2023; FIELD REPAIR - CORROSION, RH MLG, TRUNNION, TRAILING LINK ATTACH LUGS.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,344 hrs · 9,487 cycles

LIGHTNING STRIKE BURN, FUSELAGE AND PYLON, SKINS, MULTIPLE LOCATIONS. REPORT NUMBER FR-680-0149-11733 REV - DATED 31 MARCH 2023 WITH FAA FORM 8100-9 DATED 7 APRIL 2023.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,344 hrs · 9,487 cycles

LIGHTNING STRIKE BURN, FUSELAGE AND PYLON, SKINS, MULTIPLE LOCATIONS. REPORT NUMBER FR-680-0149-11733 REV - DATED 31 MARCH 2023 WITH FAA FORM 8100-9 DATED 7 APRIL 2023.

Part: NONE — DEFECTIVE · airframe 13,895 hrs · 9,179 cycles

COCKPIT ODOR: DURING EACH DESCENT WHEN THE THROTTLES/POWER WERE REDUCED THE CREW NOTICED A HOT OIL SMELL. THE SMELL WAS THE STRONGEST WHEN THE THROTTLES WERE AT IDLE. ENGINE OIL LEVELS ARE NORMAL.// CORRECTIVE ACTION// REMOVED AND REPLACED CONDENSER BAG . PERFORMED ENGINE RUNS AND FOUND NO FOUL ORDR. REF CE-680 POH AND CE-680 AMM 21-21-03

Part: BATTERY — FAULTED · airframe 13,483 hrs · 8,894 cycles

BATTERY O?TEMP R CAS MESSAGE ILLUMINATED IN FLIGHT. COMPLETED QRH PROCEDURES AND DIVERTED ASAP. MAXIMUM TEMPERATURE SEEN WAS 79. ON FINAL, CAS MESSAGE BECAME INTERMITTENT GOING ON AND OFF. AFTER LANDING, NO SMOKE OR FUMES WERE OBSERVED AND BATTERY WAS COOL TO THE TOUCH. REMOVED RH BATTERY P/N 9914058-6 S/N 11903217 AND INSTALLED OVERHAULED BATTERY P/N 9914058-6 S/N 11900619 REF. CESSNA 680 MM 24-31-00. OPS CHECKS GOOD.

Part: COALESCER BAG — DIRTY (ZONE 100) · airframe 13,332 hrs · 8,812 cycles

ODORS IN COCKPIT / CABIN: ACM HAS A MOLDY/OILY/DIRTY SOCK SMELL WHEN RUNNING FROM EITHER THE APU OR ENGINES. RAN APU AND CHECKED FOR SMELL, NOTED A DIRTY, MUSTY SMELL COMING FROM THE AIR SYSTEM. CHECKED WATER SEP SOCK AND NOTED IT VERY DIRTY. DID NOT NOTE ANY SIGNS OF OIL ON SOCK. NEW WATER SEP SOCK ON ORDER REF CE680 AMM. 21-21-03 (DT 1/19/22) REMOVED SOCK AND CLEANED SOCK AND HOUSING AS REQUIRED FOR TC-680-21·120905M, P00 FOR NEW SOCK. STERLING MISSED THE FLIGHT SO THE PART IS FURTHER DELAYED NEW ETA 21:00 1/20/22 REF CE 680 AMM 21/21/03 (OT 1/20/22) REMOVED AND REPLACED SOC OPS AND LEAK CHECKS GOOD. NO ABNORMAL SMELLS, REF REF CE 680 AMM 21 21 03

Part: NOT REPORTED — NOT REPORTED · airframe 13,278 hrs · 8,780 cycles

MAIN DOOR: MAIN CABIN DOOR EXTERNAL ENTRY HANDLE IS JAMMED AND WILL NOT OPEN WITHOUT EXCESSIVE MANEUVERING / FORCE APPLIED. // SIGNOFF// INSPECTED THE MAIN CABIN DOOR AND DETERMINED THAT THE OUTSIDE HANDLE HAD TO BE ADJUSTED. ADJUSTED THE MAIN CABIN DOOR OUTSIDE HANDLE AS REQUIRED. OPS CHECKS GOOD ALL WORK DONE IAW CE-680 AMM CH 52-10-30

Part: NONE — NONE · airframe 13,238 hrs · 8,758 cycles

SEVERAL EMER LIGHT STUCK ON. // SIGNOFF // FOUND EMERGENCY LIGHTING BATTERY PACK #4 INERTIA SWITCH TRIPPED. RESET SWITCH AND EMERGENCY LIGHTS OP'S CHECKED GOOD. WORK PERFORMED PER CE680 M/M 33-50-10.

Part: STRUT — UNKNOWN · airframe 13,193 hrs · 8,732 cycles

MAIN DOOR TELESCOPING ROD: FORWARD ROD DISCONNECTED FROM FORWARD DOOR FRAME. ***CORRECTIVE ACTION*** REMOVED AND REPLACED FWD SUPPORT STRUT ASSEMBLY, SNAP RING AND KEYWAY. OPS CHECKS GOOD. REF CE-680 AMM 52-10-30

Part: SPRING — DEFECTIVE (PAX DOOR) · airframe 12,519 hrs · 8,233 cycles

MAIN DOOR: DURING NORMAL OPERATIONS, HEARD AN UNUSUAL SNAP SOUND WHILE OPENING THE DOOR, BUT DOOR OPERATION WAS NORMAL. DURING PREFLIGHT THIS MORNING A BROKEN SPRING WAS DISCOVERED ON THE LEDGE OF THE DOOR WELL BEHIND THE MAIN AIRSTAIR DOOR.///SIGN-OFF///INSTALLED 2 NEW SPRINGS P/N S2952-45 TO MAIN DOOR LATCHING MECHANISM. IAW AMM 52-10-40. OPS CHECK GOOD.

Part: SPAR — CORRODED (VERTICAL STAB) · airframe 12,277 hrs · 8,082 cycles

2 AREAS OF CONFIRMED CORROSION ON VERTICAL STAB SPAR RT AFT SPAR CLIP. MECHANICALLY AND HAND SANDED 1 AREA OF CORROSION LOCATED ON VERTICAL STAB RT AFT SPAR CLIP ON UPPER END AT 1ST RIVET AND 1 AREA OF CORROSION LOCATED 3RD RIVET BELOW UPPER RUDDER HINGE ON RT SPAR CLIP ON AFT SPAR VERTICAL STAB. FOUND CORROSION BLENDS TO BE EXCEEDING C680 SRM 51-70-02 LIMITATIONS OF NO MORE .002" OF NOMINAL MATERIAL MATERIAL ALLOWED. SUBMITTED FINDINGS TO ENGINEERING. REPAIRED CORROSION BLENDS, IAW TEXTRON ENGINEERING MEMO, REF DQ28042M1 SUBJECT: VERTICAL STABILIZER AFT SPAR CAP CORROSION DATED: DECEMBER 4, 2020. NO ADDITIONAL RIVETS REQUIRED REPLACEMENT BEYOND RIVETS REMOVED AND NO VISUAL CORROSION IDENTIFIED INSIDE RIVET HOLES WHERE RIVETS WERE REMOVED.

Part: SKIN — DAMAGED (RT WING ROOT) · airframe 11,520 hrs · 7,553 cycles

RIGHT WING ROOT SKIN DAMAGE (MIS-DRILLED HOLE). ACCOMPLISHED TEXTRON AVIATION ENGINEERING LETTER DQ23664M1 DATED NOV. 11, 2019; 680-0149 (N389QS) RIGHT WING ROOT SKIN DAMAGE (MIS-DRILLED HOLE).

Part: PANEL — CORRODED (NLG WW) · airframe 10,871 hrs · 7,123 cycles

LEVEL 1 CORROSION AROUND NLG SQUAT SWITCH WIRE HARNESS CARRY THROUGH ON LT SIDE OF NOSE WHEEL WELL APPROX 1 O'CLOCK AREA.

Part: SKIN — CORRODED (FUSELAGE) · airframe 10,512 hrs · 6,876 cycles

FOUND CORROSION AROUND AIRCRAFT OEM DATA TAG, REMOVED DATA TAG, MECHANICALLY BLENDED CORRODED AREA, PERFORMED NDT AND REPORTED RESULTS FOR DISPOSITION. CLEANED, TREATED, PRIMED AND PAINT AREA IAW REPAIR MEMO. REINSTALLED EXISTING AIRCRAFT DATA TAG.

Part: ATTACH ANGLE — CORRODED (APU BAY) · airframe 10,512 hrs · 6,876 cycles

REPLACED EXISTING CORRODED APU TAILCONE FAIRING ATTACH ANGLE WITH NEW RT P/N 6912630-68 AND LT ANGLE P/N 6912630-67 REFERENCING SRM 51-40-03 AND SPM 20-40-20.

Part: FIREWALL — CRACKED (APU BAY) · airframe 10,512 hrs · 6,876 cycles

REPAIRED TWO CRACKS IN THE APU FIREWALL BY STOP DRILLING INSTALLING DOUBLER PER AQRD ENGINEERING ORDER.

Part: SPAR CAP — CORRODED (VERTICAL STAB) · airframe 9,333 hrs · 6,067 cycles

CORROSION ON VERTICAL AFT SPAR CAPS.

Part: WIRE — CHAFED (LT ENGINE) · airframe 8,674 hrs · 5,636 cycles

INFLIGHT ENGINE FIRE DETECTOR L CAS MESSAGE DISPLAYED. ALSO NOTED THE CIRCUIT BREAKER TRIPPED. PUSHED IN CIRCUIT BREAKER POWERED UP ACFT. CIRCUIT BREAKER POPPED. TROUBLESHOT DOWN TO A CHAFED WIRE ON THE ENGINE WIRE HARNESS. CUTOUT BAD SECTION OF WIRE INSTALLED ENVIRONMENTAL CRIMP. OPS CHECKED FIRE DETECT SYS, OPS CHECK GOOD. WORK WAS DONE IAW MM 26-10-30.

Part: STRUCTURE — CORRODED (LT MLG WW) · airframe 6,250 hrs · 4,034 cycles

CORROSION FOUND IN LT WW DURING INSPECTION. REPAIRED CORROSION DAMAGE IAW REPAIR DEFINITION S-680-0149 05RD.

Part: BRAKE — FROZEN (MLG) · airframe 6,184 hrs · 4,000 cycles

UPON INITIAL LANDING TOUCHDOWN, LT MAIN WHEEL BRAKES WERE FROZEN. RESULTED IN BOTH LT MAIN BLOWN TIRES. INSPECTED EXTERIOR OF ACFT & FOUND NO FURTHER DAMAGE. ACCOMPLISHED MAIN GEAR TIRE BURST CHECK IAW CE-680 AMM 5-50-00. NO DEFECTS NOTED. REMOVED AND REPLACED BOTH LT MLG WHEEL ASSEMBLIES IAW CE-680 M/M 32-41-20. SERVICED TIRES TO SPEC. LEAK CHECK IS GOOD. PARTS REMOVED: MAIN LANDING GEAR WHEEL ASSEMBLY (LT INBD) (PN: 3-1621, SN: 0422), MAIN LANDING GEAR WHEEL ASSEMBLY (LT OTBD) (PN: 3-1621, SN: 0963).

Part: ENGINE — FAILED (RIGHT) · airframe 5,733 hrs · 3,724 cycles

AFTER TAKEOFF, CREW AND PAX NOTICED, SMELLED & SAW EXHAUST IN THE CABIN. ON INITIAL POWER REDUCTION, THE ODOR DECREASED BUT WAS NOTICEABLE WITH INCREASE IN THROTTLE. ODOR DISSIPATED QUICKLY AFTER THE SECOND THROTTLE INCREASE. FLIGHT CONTINUED WITHOUT FURTHER INCIDENT OR REOCCURANCE. REMOVED RT ENGINE AND INSTALLED SERVICEABLE ENGINE. PERFORMED OPS & LEAK CHECKED AND FIVE POINT ENGINE CALIBRATION WITH NO DEFECTS NOTED. WORK PERFORMED IAW AMM 71-00-00, 71-00-20, 71-00-30, &EMM 71-00-00.

Part: BLANKET — DEBONDED (APU EXHAUST) · airframe 5,077 hrs

DURING SCHEDULED INSPECTION, REMOVED HEAT BLANKET ASSY FROM THE APU EXHAUST PIPE. NOTICED SMALL PIECES OF WHITE HEAT BLANKET MISSING AND WAS WATER STAINED. THERE IS A REPAIR FOR THE BLANKET BUT WE FOUND THE COMPOSITE INNER SKIN TO BE SOFT IN A 5 TO 6" AREA.

Part: CONTROL HANDLE — STUCK (MLG) · airframe 4,248 hrs · 2,764 cycles

DURING APPROACH, GEAR HANDLE WOULD NOT MOVE, DURING A TURN, GEAR HANDLE RELEASED TO DOWN POSITION. TROUBLESHOT TO LANDING GEAR CONTROL HANDLE. R & R LANDING GEAR CONTROL HANDLE IAW MM 32-30-10. OPS CHECKED GOOD.

Part: ENGINE — CONTAMINATED (RIGHT) · airframe 3,485 hrs · 2,257 cycles

RT ENGINE HAD "ENGINE CHIP DETECT-R" CAS MESSAGE IMMEDIATELY AFTER TAKEOFF. NO ENGINE VIBRATIONS. NO SECONDARY ENGINE INSTRUMENT INDICATIONS. LIGHT STAYED ON FOR 20-30 SECONDS THEN WENT OUT FOR 5-10 SECONDS AND KEPT REPEATING UNTIL LANDING. REMOVED RT CHIP DETECTOR AND FOUND A SINGLE HAIR-LIKE FILAMENT ACROSS DETECTOR POLES. REMOVED RT OIL FILTER AND INSPECTED. NO NOTICEABLE DEBRIS ON FILTER. INSTALLED NEW FILTER AND CLEANED CHIP DETECTOR. OPERATED RT ENGINE FOR 10 MINUTES. NO CAS MESSAGES AND CHIP DETECTOR WAS CLEAN. ALL WORK DONE IAW MM 72-00-00.

Part: BRAKE SYS — MALFUNCTIONED (MLG) · airframe 2,658 hrs · 1,714 cycles

DURING LANDING ROLLOUT WHEN BRAKE PRESSURE WAS APPLIED, IT TOOK ALMOST FULL BRAKE FOOT APPLICATION TO THE FLOOR, BOTH SIDES, TO SLOW THE AIRCRAFT DOWN TO A TAXI SPEED WHILE ON THE RUNWAY. BRAKE PRESSURE AND APPLICATION SEEMS NORMAL BELOW 30 KTS. BLED BRAKES IAW MM 32-42-10 LEAK CHECK GOOD OPS CHECK GOOD. CHECKED BRAKE WEAR - LI .38, LO .20, RI. 35, RO .20 BLED BRAKES IAW MM 32-42-10. LK CHECK, OPS CHECK, TAXI CHECK GOOD. SERVICED RESERVOIR IAW SRM 12-12-02.

Part: SQUAT SWITCH — OUT OF ADJUST (MLG) · airframe 2,164 hrs · 1,410 cycles

GEAR WOULD NOT COME UP UPON ROTATION. JACKED ACFT. CYCLED GEAR AND ADJUSTED ALL 3 SQUAT SWITCHES. OPS CK GOOD IAW MM 32-30-00.

Part: APU — SMOKE

STARTED APU ON GROUND, GOT SMOKE IN CABIN. REMOVED AND REPLACED APU IAW MM 49-10-00. OPS AND LEAK CHECKS GOOD ON APU GROUND RUN.

Part: OIL SYSTEM — OVERSERVICED (APU) · airframe 267 hrs · 188 cycles

AFTER STARTING APU AND TURN-ON BLEED AIR CABIN BEGAN TO FILL WITH AN OILY ODOR. SHUTDOWN APU AND STARTED BOTH ENGINES AND SMOKE DISSIPATED AND DID NOT RETURN. RE-ENABLED APU. VISUALLY INSPECTED APU EXAUST AND EXTERNAL COMPONENTS. NO LEAK OR DEFECTS NOTED. CHECKED OIL LEVEL FOUND TO BE OVERSERVICED TO TOP OF FILLER NECK. CLEANED AND INSPECTED COALESCER IAW CE680 MM 12-11-03 AND HONEYWELL RE100 (CS) MM 49-20-00. RAN FOR 30 MIN. NO DEFECTS OR ODOR NOTED.