N538QS

Part: BATTERY — FAULTED (ZONE 200) · airframe 8,017 hrs · 5,269 cycles

FLOOR EMERG EXIT LIGHT: EVACUATION PATH LIGHTING UNDER SEAT 3 IS NOT ILLUMINATING. PERFORMED CHARGING PROCEDURE FOR 30 MINUTES PER QRH. CHARGED ADDITIONAL 30 MINUTES PER QRH. LIGHT DID NOT ILLUMINATE AFTER QRH PROCEDURE. RIGHT SIDE EXTERIOR EMERGENCY LIGHT DOES NOT ILLUMINATE EITHER. REMOVED FAULTY #2 EMERGENCY BATTERY PIN 2503 SIN 46847 AND INSTALLED NEW PACK PIN 2503 SIN 49132 CHARGED AND OPS CHECK GOOD IAW 33-50-06

Part: WARNING LIGHT — ILLUMINATED (MAIN DOOR) · airframe 7,287 hrs · 4,751 cycles

MAIN DOOR: DURING TAXI OUT FOR TAKEOFF, AMBER CABIN DOOR OPEN CAS MESSAGE APPEARED. STOPPED AIRCRAFT AND PERFORMED QRH N1 PROCEDURE, AMBER CABIN DOOR OPEN CAS MESSAGE REMAINED. REMOVED SUSPECTED DEFECTIVE INNER DOOR HANDLE PROX SWITCH & INSTALLED NEW CUSTOMER SUPPLIED PROX SWITCH IAW MM 52-70-10. REMOVED DAMAGED PROX SWITCH CORD SET, INSTALLED CUSTOMER SUPPLIED NEW PROX SWITCH CORD SET IAW MM 52-70-00.

Part: DIODE — FAILED (EMERGENCY LIGHTS) · airframe 7,241 hrs · 4,727 cycles

THE LAVATORY FLOOR EMERGENCY LIGHT IS INOP. IT DOES NOT COME ON IN EITHER THE ARM (NO POWER ON AIRCRAFT) OR IN THE ON POSITION. RE SPLICED THE DIODE. OPS CHECK GOOD. IAW SPM 20-30-25.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,953 hrs · 4,542 cycles

DURING CLIMBOUT, RECEIVED A PRI STAB TRIM FAIL CAS MESSAGE. TRIM SWITCH ON PILOT'S YOKE WOULD NOT ACTUATE TRIM. AFTER APPROX 10 SECS, STAB TRIM STARTED OPERATING NORMAL, BUT WITHIN 20 SECS, KICKED OFF & AGAIN RECEIVED THE PRI STAB TRIM FAIL CAS MESSAGE. CYCLE OCCURRED 3 TIMES. RETURNED TO AIRFIELD. POWERED ACFT & PERFORMED PILOT & COPILOT DISCONNECT OPS CHECK IAW MM 22-10-50. NO DEFECTS NOTED. OHMED PILOT & COPILOT SWITCHES IAW WDM 27-00-01. NO DEFECTS NOTED. OHMED GROUND LUG TO DISCONNECT SWITCHES. INSPECTED AT CONTROL COLUMN MOUNT TO UNDER COCKPIT FLOOR & TO GROUND LUG IAW WDM 22-10-01. NO DEFECTS NOTED. PERFORMED PILOT & COPILOT DISCONNECT OPS CHECK IAW MM 22-10-50. OPS CHECKED GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,791 hrs · 4,556 cycles

AFTER LEFT AND RIGHT BATTEY SWITCHES TURNED OFF SOME OF THE OVERHEAD LIGHTS ASSOCIATED WITH THE EMERGENCY LIGHTING SYSTEM REMAIN ILLUMINATED (SEATS 3, 7, 9, AND LAV). COMPLIED WITH TC-FLT-33-1001 EMERGENCY LIGHTING POWER SUPPLY BATTERY EXERCISE PROCEDURE. EMERGENCY LIGHTING POWER SUPPLY BATTERIES CHECK WAS SATISFACTORY, BATTERIES ARE AIRWORTHY PER CMM 33-50-03. NO DISCREPANCIES NOTED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,404 hrs · 4,186 cycles

MAIN EXIT SIGN/LIGHT: EXIT SIGN LIGHT OVER MAIN CABIN DOOR AND FLOOR LIGHT BASE OF SEAT 10 WILL NOT EXTINGUISH WITH POWER REMOVED FROM AIRCRAFT. GAINED ACCESS TO FWD #1 EMERGENCY LIGHTING INERTIA SWITCH (SC001) PERFORMED RESET AND OPERATIONAL CHECKED GOOD. BATTERY VOLTAGE CHARGED TO PROPER VOLTAGE NO DEFECTS NOTED AT THIS TIME. IAW CE680A AMM 33-50-11 MM 5/31/23

Part: SEAL — LEAKING (HYD PUMP) · airframe 5,886 hrs · 3,881 cycles

DURING CRUISE, AT FL430 HYD VOLUME LOW AMBER CAS ILLUMINATED. HYD FLUID CAN BE SEEN DRIPPING FROM RT ENGINE DRAIN MAST. INSPECTED RT ENG HYD PUMP & FOUND FLUID FROM DRAIN MAST ON BOTH PAD DRAINS. CHECKED SYS VOLUME, FOUND 190 CI, PRESSURIZED SYS WITH AUX PUMP & RATE OF LEAK INCREASED. BOTH PYLONS HAVE HYD FLUID COMING OUT OF AFT PANELS. 3 PRESSURE SWITCHES LEAKING FROM WEEP HOLES. REMOVED & INSPECTED RT PUMP PRESS CASE FILTERS & FOUND SIGNIFICANT AMOUNT OF METAL. INSTALLED NEW FILTERS, R & R HYD PUMP AGB SEAL. INSPECTED FOR FLUID PAST SEAL, FOUND NONE. R & R RT HYD PUMP. COMPLIED WITH LEAK & OPS CHECK HYD PUMP & FILTER, NO FAULTS. ALL IAW AMM 29-10-05, 29-10-80, 29-10-70, MM 72-60-01, & MM 72-60-01.

Part: G SWITCH — TRIPPED (EMERGENCY LIGHTS) · airframe 5,863 hrs · 3,866 cycles

5G SWITCH ACTIVATED. EXIT LIGHT OVER MAIN CABIN DOOR REMAINS ILLUMINATED ALONG WITH MAIN CABIN DOOR LOWER EXIT LIGHTS AND FLOOR LIGHT AT SEAT 10 WITH ALL POWER REMOVED FROM AIRCRAFT. WHEN WE ARRIVED AT THE AIRCRAFT THE MAIN EXIT LIGHT WOULD ILLUMINATE. G SWITCH RESET. CHARGED BATTERIES USING GPU FOR ONE HOUR AND OPS CHECKED.NO DEFECTS NOTED IAW AMM 33-50-00. ORIG SUB DATE: 12/6/2022

Part: NONE — NONE · airframe 5,604 hrs · 3,683 cycles

CABIN EMERG LIGHT: WITH THE BATTERIES OFF AND THE EMER LIGHTS OFF THE EMERGENCY EXIT SIGN (WHITE) OVER THE MAIN CABIN DOOR IS ILLUMINATED. ALSO THE 2 EXIT SIGNS (RED) AT THE BASE IF THE MAIN CABIN DOOR AND THE FLOOR LIGHT UNDER SEAT 10 ARE ILLUMINATED. ALL OTHER EMERGENCY LIGHTS ARE WORKING PROPERLY. // SIGNOFF// INERTIAL SWITCH SLOO1 ARM REMOVED PEDESTAL PANEL 244BR RESET INERTIAL SWITCH RESET EMER BATTERIES PERFORMED A SATISFATORY EMERGENCY LIGHTING INERTIAL SWITCH OPERATIONAL CHECK IAW CE680A AMM 33-50-11 RESTORE AIRCRAFT TO ORGINAL CONFIGURATION.

Part: NONE — NONE · airframe 5,568 hrs · 3,655 cycles

EMERG EXIT SIGN/LIGHT: EMERGENCY EXIT LIGHT ABOVE MAIN CABIN DOOR IS LATCHED ON.

Part: G SWITCH — OUT OF ADJUST · airframe 5,453 hrs · 3,575 cycles

CABIN EMERG LIGHT: AFTER POWERING DOWN AND BOTH BATTRIES DISCONNECTED THE MAIN EMG EXIT SIGN AND PATH LIGHT UNDER SEAT 10 STAYS ILLUMINATED // SIGNOFF// RE•SET THE G•SWITCH IN COCKPIT, THEN THE MAIN EMERGENCY EXIT SIGN AND EMERGENCY PATH LIGHT UNDER SEAT 10 WENT OUT, C/W INSPECTION OPS TEST OF EMERGENCY LIGHTS, ALL EMERGENCY LIGHTS (INTERIOR & EXTERIOR) OPS CKECKED NORMALLY AS REQUIRED, NO DEFECTS NOTED REF. CE·6B0A MM. 33-50·00,

Part: NONE — NONE · airframe 5,138 hrs · 3,361 cycles

CABIN EMERG LIGHT: FOLLOWING SHUTDOWN WITH SHIP BATTERIES DISCONNECTED AND EMER LTS SWITCH IN OFF, CABIN ENTRY EXIT SIGN AND FLOOR LIGHT BENEATH SEAT 10 REMAIN ILLUMINATED. (CORRECTIVE ACTION) TROUBLESHOT IAW CE-680A WD 33-50-01 TO ACTIVATED INERTIA SWITCH POS SC001 OF THE FWD. EMERG LIGHTS BATTERY PACK. RESET INERTIA SWITCH AND OPERATIONS RESTORED. PRECAUTIONARY REPLACED INERTIA SWITCH IAW MM 33-50-11. FULLY CHARGED BATTERY PACK. EMERGENCY LIGHTS OPERATIONAL TEST IS NORMAL.

Part: NONE — NONE · airframe 4,689 hrs · 3,098 cycles

MAIN DOOR: WHEN ATTEMPTING TO CLOSE MAIN CABIN DOOR FROM OUTSIDE, THE OUTSIDE MAIN DOOR HANDLE WILL NOT GO FLUSH WITH THE DOOR( ABOUT A 2" GAP). DOOR SEEMS SECURE IN CLOSED POSITION. // SIGNOFF// NOTED MAIN DOOR LATCH POSITION WHEN APPROACHING AIRCRAFT. TOOK PICS TO CONFIRM LATCH WAS OUT. OPENED DOOR, INSP LATCH MECHANISM AND LOCK TUMBLER AND HARDWARE FOR LOOSENESS WITH NO DEFECTS NOTED. PERFORMED COUNTLESS OPS CHECKS BOTH INSIDE AND OUTSIDE AIRCRAFT WITH OPS CHECKS GOOD AND NO DEFECTS NOTED. HAD OBSERVER WATCH WHEN DOOR WAS CLOSED FROM INSIDE CABIN - NO DEFECTS NOTED, INSPECTED DOOR LOCKING PINS, ENGAGEMENT WINDOW INDICATORS AND FOUND THEM TO BE WELL LUBRICATED AND OPERATING SMOOTHLY AND NORMAL.TRIED MANIPULATING LATCH BY ATTEMPTING TO CLOSE IT PREMATURELY AND IT STILL LATCHED NORMAL AND FLUSH, CAN NOT DUPLICATE DISCREPANCY AT THIS TIME, REF: CE-680A AMM 51·10-00

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 3,485 hrs · 2,335 cycles

PICKING UP AIRCRAFT DURING PRE-FLIGHT WHILE TESTING THE EMERGENCY LIGHTING SYSTEM. NONE OF THE EMERGENCY LIGHTS WORK. ALL FOUR BATTERY PACKS ARE DEAD. VERIFIED EMERGENCY LIGHTS WOULD NOT COME ON WITH BATTERY IN OFF POSITION. POWERED AIRCRAFT WITH APU. VERIFIED EMERGENCY LIGHTS TURN ON AND OFF. VERIFIED ALL EMERGENCY LIGHTING INERTIA SWITCHES NOT TRIPPED. REPOSTIONED AIRCRAFT TO HANGER. PERFORMED EMERGENCY LIGHTING OPERATIONAL CHECK. NO DEFECTS NOTED. APPLIED GROUND POWER TO AIRCRAFT AND ALLOWED TO SIT WITH POWER ON FOR 1 HOUR. PERFORMED EMERGENCY LIGHTING OPERATIONS CHECK, IAW CE680A AMM 33-50-00-05. OPERATIONS CHECK GOOD, NO DEFECTS NOTED.

Part: SKIN — CORRODED (HORIZ STAB) · airframe 3,093 hrs · 2,050 cycles

HORIZONTAL STABILIZER SKIN DAMAGE ENGINEERING MEMO DQ25723M1 DATED MAY 12,2020.

Part: ACTUATOR — MALFUNCTIONED (MLG) · airframe 2,754 hrs · 2,754 cycles

GEAR DISAGREE R AMBER CAS ILLUMINATED - GEAR DISAGREE AMBER CAS ILLUMINATED AFTER GEAR WAS SELECTED UP. COMPLIED WITH QRH X2 WHICH LED TO ABNORMAL TAB N2 LDG GEAR WILL NOT RETRACT. COMPLIED WITH PROCEDURE AND LANDED WITH SAFE GEAR INDICATIONS AND NO FURTHER ABNORMALITIES NOTED. REMOVED RT MLG ACTUATOR AND REPLACED IAW AMM 32-30-15. PERFORMED OPS CHECKS WITH NO DEFECTS NOTED.

Part: WIRE HARNESS — DAMAGED (MLG) · airframe 2,663 hrs · 1,787 cycles

GEAR DISAGREE R AMBER CAS ILLUMINATED - AIRCRAFT SAT OVERNIGHT IN COLD TEMPERATURE AROUND 10 F. IN THE MORNING THE AIRCRAFT WAS COVERED WITH ICE AND FROST AND HAD TO BE DEICED. AFTER TAKEOFF FROM ASE AFTER GEAR RETRACTION WE RECEIVED THE AMBER "GEAR DISAGREE R" CAS MESSAGE. REMOVED OLD HARNESS PN6948101-3 AND REPLACED WITH NEW PN 6948101-3 IAW CE680A MM 32-32-25. PERFORMED ADJUSTMENT IAW CE680A MM 32-32-00 VERIFIED SWITCH DEPRESSION USING ORING. PERFORMED LANDING GEAR OPS TEST IAW CE680A MM 32-00-00. OPS CHECKS GOOD. STAYED BELOW 16,000 AND 200 KIAS AND COMPLETED QRH X2. X2 DIRECTED US TO TAB N2. HAD GREEN LIGHTS ON THE NG AND LMG BUT THE RMG HAD A YELLOW X. WERE ALLOWED TO ACCELERATE AND FLY AT A NORMAL CRUISE ALTITUDE. UPON ARRIVAL WE LOWERED THE GEAR NORMALLY WITH THE HANDLE AND HAD THREE GREEN LIGHTS. PER THE QRH TAB N2 WE HAD TO USE THE NITROGEN BLOWDOWN TO ENSURE THE GEAR WAS DOWN AND LOCKED. THE LANDING, TAXI IN AND SHUTDOWN WERE UNEVENTFUL.