N395QS

Part: BATTERY — FAULTED (EMERGENCY LIGHTS) · airframe 6,530 hrs · 5,086 cycles

EMERGENCY LIGHTS ILLUMINATED WHILE IN THE ARMED POSITION. THEY LATER STARTED FLICKERING. EMERGENCY LIGHTS TURN OFF WITH SWITCH IN OFF POSITION. REMOVED #1 EMERGENCY BATTERY P/N 74SOL.5-00 S/N 005531.. INSTALLEDA NEW #1 EMERGENCY BATTERY P/N 7450LS-00 S/N 007368. REMOVED #2 EMERGENCY BATTERY P/N 74S0LS-00 S/N 007128. INSTALLED A NEW #2 EMERGENCY BATTERY P/N 74501.S S/N 007369. OPS ·CHECK GOOD IAW AMM 33-52-01

Part: FLAG — OBSTRUCTED (DOOR LOCK) · airframe 6,338 hrs · 4,926 cycles

LOWER DOOR LOCK INDICATION FLAG IS NOT VISIBLE. LOOKS LIKE IT IS OBSTRUCTED BY SOMETHING BLUE IN COLOR. VERIFIED THAT THERE IS SOMETHING IN FONT OF FLAG IT LOOKS LIKE THE BLUE LINER INSIDE THE 5T AIRS. GAINED ACCESS TO LINER INSIDE MAIN DOOR. RESECURED LINER. ASSEMBLED STAIRS. OPS CHECK GOOD YOU CAN CLEARLY SEE THE LOWER DOOR LOCK INDICATION FLAG. WORK DONE IAW EMB-505 AMM CH 52-14-00.

Part: BATTERY — FAILED (EMERGENCY LIGHTS) · airframe 5,963 hrs · 4,632 cycles

ON TAXI OUT WHILE IN "ARM" THE EMERGENCY LIGHTING SYSTEM STARTED TO FLASH. VERIFIED FAULT. WHEN SELECTED TO ARM LIGHTS CAME ON & STAYED ON. DISCHARGED UNTIL LIGHTS BEGAN TO FLASH. CHARGED BATTERIES FOR 90 MINS & THE FAULT PERSISTED. MORE TROUBLESHOOTING NECESSARY, 2 EMERGENCY LIGHT POWER SUPPLIES ON ORDER. REMOVED FAULTY AFT EMERGENCY LIGHT BATTERY, INSTALLED A NEW BATTERY. REMOVED FWD BATTERY & INSTALLED TESTED BATTERY. WORK PERFORMED IAW AMM 33-52-01.

Part: BATTERY — DEFECTIVE (ZONE 100) · airframe 5,918 hrs · 4,597 cycles

CABIN EMERGENCY LIGHTS ARE "ON" WITH THE SWITCH IN THE ARMED POSITION. GAINED ACCESS TO A/C AND WE ARE ABLE TO DUPLICATE DISCREPANCY. VISUAL INSPECTED (CIRCUIT BREAKER EMER LT ON RHCPB/ EMERGENCY BUS/ D27) AND FOUND CLOSED AND SECURED. GAINED ACCESS TO FWD EMERGENCY POWER SUPPLY IAW EMB 505 AMM 35-52-00-710-801-A BY REMOVING COCKPIT ENTRANCE FLOOR BOARD AND FOUND CONNECTOR RESECURED. ALSO GAINED ACCESS TO AFT BATTERY PACK ON RH AFT AVIONIC AND MX BAY AND FOUND CONNECTOR RECURED AND CLEAN.. PERFORMED EMERGENCY LIGHT EXERCISE PROCEDURE PER TASK NO TC-E50-33-1001, PROBLEM PERSIST. ALSO PERFORMED OPS CK SELECTING SWITCH ON ARM POSITION WITH ONE POWER SUPPLY CONNECTED AT THE TIME. ALSO GAINED ACCESS TO THE INERTIAL SWITCH. REMOVING RH LATERAL CONSOLE IAW AMM TASK 25-13-02-000-801-A/400). FOUND CONNECTOR RESECURED. TC-E50-33-1001 FOLLOWING FIM, FIM-4885 33-50-00-810-801-A. WE DID STEP 1 TO 5 WITH THESE RESULTS. WHEN DISCONNECT EMERGENCY LIGHT BATTERY #2 WE GET NO LIGHTS, RECONNECTED BATTERY #2. CONTINUE TO DISCONNECT EMERGENCY BATTERY #1 AND WE GET LIGHTS "ON" FOR AROUND 5 SEC. IN ARM POSITION. BATTERIES WERE SWAPPED AND WE GET SAME RESULTS AS ORIGINAL POSITIONS. ALSO VERIFY ELECTRICAL EMERGENCY PUSH BOTTOM AND ITS UNLATCHED. PERFORMED INERTIAL SWITCH REACTIVATION AND PROBLEM PERSIST. REPO EVERYTHING BACK TO ITS ORIGINAL POSITION. R&R #1 AND #2 EMERGENCY BATTERY. OPS CHECK GOOD AT THIS TIME IAW EMB 505 AMM 33-52-01-960-801-A. ORIGINAL SUBMISSION DATE: 8/17/2023.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,775 hrs · 4,482 cycles

CABIN EMERG LIGHT: EMERGENCY EXIT LIGHTS IN CABIN BEGAN BLINKING IN FLIGHT AND THEN CAME ON STEADY. SWITCH WAS IN THE ARM POSITION THE ENTIRE TIME. REMOVED #2 E-BATTERY PN 7450LS-00 SN 005521 AND INSTALLED A NEW E-BATTERY PN 7450LS-00 SN 006881 IAW EP300 MM 33-52-01-00-801. PERFOMRED OPS CHECK FOR BOTH #1 AND #2 E-BATTERIES. OPS CHECKS ARE GOOD AT THIS TIME.WORK IAW EP300 MM 33-52-01-710-801

Part: BATTERY — DEFECTIVE (ZONE 100) · airframe 4,170 hrs · 3,228 cycles

EMERGENCY LIGHTING: EMERGENCY LIGHTS TURN ON AND INTERMITTENTLY FLASH ON AND OFF WITH SWITCH IN "ARMED" POSITION. //SIGNOFF// REMOVED AND REPLACED THE FWD EMERGENCY LIGHTS BATTERY IAW EMB 505 AMM 33-52-01 OPS CHECK GOOD

Part: UNKNOWN — ODOR (CABIN) · airframe 1,288 hrs · 987 cycles

UNFAMILIAR ODOR NOTICED ABOVE 10,000 FEET. WENT AWAY FOR A WHILE THEN IT CAME BACK WHEN ABOUT TO LEVEL OFF AT FLIGHT LEVEL 410. ODOR SMELLS LIKE BURNING OIL COMING THROUGH ENVIRONMENTAL SYSTEM. PRESSIRIZED AIRCRAFT AND RAN THE LT AND RT ENGINES AT CLIMB CRUISE MAX CRUISE AND -2% FROM POWER. DOING SO DROVE CABIN & COCKPIT FULL HOT TO REMOVE ALL ASSEMBLY COATING FROM THE PREVIOUSLY INSTALLED PRE-COOLERS AFTER 10-15 MINUTES SMELL OR ODOR DISAPATED. RAN ENGINES FOR ADDITIONAL 2 HOURS AT DIFFERENT POWERS SETTINGS. NO ODOR NOTED PERFORMED FUNCTIONAL CHECK OF PNEUMATIC SYSTEM IAW MM 36-11-00 ,OPS CHECK GOOD. PERFORMED OPERATIONAL CHECK OF DUCT TEMP SENSORS IAW MM 21-61-00, OPS CHECKED GOOD

Part: PRECOOLER — FAILED · airframe 1,286 hrs · 983 cycles

BLEED 1 FAIL YELLOW CAS ILLUMINATED, CLIMBING THROUGH APPROXIMATELY 16,000 FT IN ICING CONDITIONS WITH WING AND ENGINE ANTI-ICE SWITCHES SELECTED ON. AFFECTED BLEED FAIL CONDITION DID NOT INITIALLY RESET. BLEED 2 FAIL YELLOW CAS MESSAGE ILLUMINATED CLIMBING THROUGH APPROXIMATELY 16,000 FEET. COMPLIED WITH SERVICE LETTER SL 505-36-0003 AND FOUND THE PRECOOLER INTERNAL VANES BROKEN OFF AND BLOCKING AIR FLOW. R & R THE PRECOOLER WITH OVERHAULED UNIT AND OPS CHECKED GOOD IAW AMM 36-11-05-000-801-A/400, 36-11-05-400-801-A/400, 36-00-00-710-801-A/500.

Part: INTERFACE UNIT — FAULTED (ENGINE) · airframe 1,270 hrs · 972 cycles

MULTIPLE AIRFRAME AND ENGINE CAS MESSAGES IN-FLIGHT INCLUDING, LG LEVER DISAG, E1 TTO HTR FAIL, PRESN AUTO FAIL, OXY LOW PRES, A-I E2 ON, A-I E1 ON, SWPS ICE SPEED, A-I WINGSTB ON, ADS 2 SLIP FAIL, ADS 1 SLIP FAIL, AND ENG NO DISPATCH. REMOVED AND REPLACED THE ENGINE AIRFRAME INTERFACE UNIT IAW AMM 31-41-03, OPS CHECKED GOOD.

Part: SQUAT SWITCH — FAILED (MLG) · airframe 9,274 hrs · 7,709 cycles

ANTI SKID LIGHT ILLUM INFLT AT 35000. LIGHT WENT OUT AFTER ABOUT A MIN. CAME BACK ON 5 MIN LATER & STAYED ON UNTIL SWITCH TURNED OFF. FOUND SQUAT SWITCH DISAGREE BITE INDICATOR TRIPPED. RESET INDICATOR. JACKED ACFT & TESTED ANTI-SKID SYS, MONTIORED BITE INDICATORS DURING MLG SWINGS. FOUND SQUAT SWITCH DISAGREE TRIPPED DURING SWING. INSPECTED LT & RT SQUAT SWITCHES. FOUND LT SWITCH OUT OF ADJUST. TESTED LT SQUAT SWITCH FOR INTERNAL RESISTANCE. FOUND LT SQUAT SWITCH HAD HIGH INTERMITTANT RESISTANCE. REMOVED & INSTALLED A NEW SWITCH. RIGGED LT SQUAT SWITCH. TESTED RIG ON RT SQUAT SWITCH. FOUND OUT OF RIG. RIGGED RT SQUAT SWITCH. PERFORMED MLG SWINGS & ANTI-SKID OPS TESTS. CHECKED GOOD IAW MM 32-61-00.

Part: LANDING GEAR — MALFUNCTIONED (LEFT) · airframe 9,096 hrs · 7,569 cycles

LT MAIN GEAR DID NOT RETRACT ON TAKEOFF (CONFIRMED BY INDICATOR LIGHTS, TOWER AND WIND NOISE). AFTER ABOUT 2 MIN RETRACTED BY ITSELF, WITHOUT US CYCLING THE GEAR. REMOVED LT MAIN GEAR UPLOCK SWITCH DUE TO HIGH RESISTANCE. INSTALLED NEW SWITCH AND ADJUSTED IAW MM 32-61-00, OPS CHECKED GOOD.

Part: LANDING GEAR — MALFUNCTIONED (NOSE) · airframe 9,082 hrs · 7,557 cycles

ON DEPARTURE WHEN GEAR HANDLE SELECTED TO UP, THERE WAS A SIGNIFICANT NOSE GEAR RETRACTION DELAY. THE NOSE GEAR GREEN DOWN INDICATOR REMAINED ILLUMINATED AND RED UNSAFE LIGHT REMAINED ILLUMINATED FOR 30-40 SECONDS AFTER GEAR RETRACTION BEFORE IT EVENTUALLY RETRACTED. THE MAIN GEAR GREEN LIGHTS EXTINGUISHED NORMALLY. JACKED ACFT AND CYCLED GEAR REPEATEDLY. NO DEFECTS WERE NOTED. ALL INDICATIONS NORMAL. INSPECTED WIRING AND CONNECTORS IN GEAR WHEEL WELL WITH NO DISCREPANCIES FOUND. FROZE DOWNLOCK SWITCH AND CYCLED GEAR NUMEROUS TIMES. UNABLE TO DUPLICATE DISCREPANCY. WORKED REF MM 32-30-00.

Part: SWITCH — SHORTED (COCKPIT) · airframe 8,773 hrs · 7,308 cycles

AT T/R DEPLOYMENT ON LANDING ROLL, A SPARK CAME FROM THE EMER\STOW SWITCH AREA. A SLIGHT ELECTRICAL ODOR WAS PRESENT. RT SIDE T/R EMER/STOW SWITCH. REMOVED AND REPLACED THE RIGHT EMER STOW SWITCH. OB CHECK GOOD. IAW MM 25-12-00. 20-00-00 AND 78-31-00. REF FAS 09-2302.

Part: BULB — INOPERATIVE (MLG INDICATOR)

LEFT MAIN GEAR LIGHT FAILED TO ILLUMINATE WITH GEAR HANDLE SELECTED DOWN ON LANDING. VERIFIED BULB INOP ON LT GEAR INDICATION REMOVED ALL GEAR INDICATING BULBS AND REPLACED WITH NEW FUNCTION CHECK GOOD (4 TOTAL) JACKED ACFT PERFORMED GEAR RESET AND BLEED PROCEDURE AFTER EMERGENCY GEAR BLOWDOWN PER MM 32-01-00 RESERVICED N2 AND HYDRAULIC RESERVOIR OPS CHECK GOOD DOWNJACKED ACFT RETURNED TO SERVICE. SERVICE PERFORMED IAW MM 12-13-01

Part: BRAKE ASSY — WEAK · airframe 7,184 hrs · 5,961 cycles

BRAKES ARE MUSHY THROUGH THE FIRST 75 PERCENT OF PRESSURE APPLICATION. DON'T START TO FEEL BRAKING UNTIL PAST THE 75 PERCENT MARK. IMPROVES SLIGHTLY IF YOU PUMP THE BRAKES. BLED LT & RT BRAKES, INSPECTED BRAKES FOR DEFECTS, BRAKE WEAR FOUND WITHIN LIMITS, NO OTHER DEFECTS NOTED. SERVICED BRAKE RESERVOIR TO FULL LEVEL. PERFORMED GROUND RUN & TAXI CHECK OF BRAKES, BRAKES FOUND TO FUNCTION PROPERLY FROM PILOT & CO-PILOT POSITIONS WITH NO DEFECTS NOTED. OPERATIONAL CHECKS GOOD. MAINT PERFORMED IAW CE-560 MM CH 32-42-00

Part: WIRE — BROKEN (MLG INDICATOR) · airframe 6,219 hrs · 5,205 cycles

AFTER TAKEOFF LANDING GEAR WOULD NOT RETRACT. LANDING GEAR IN RETRACT POSITION. POSITIONED GEAR HANDLE TO AGREE WITH GEAR POSITION, VERIFIED GEAR DOWN WITH THROTTLE AND FLAP SETTINGS. RETURNED TO LUK AND LANDED UNEVENTUALLY. FOUND BROKEN WIRE AT DME SPLICE AFT OF PIN C OP CONNECTOR P160, REPAIRED SPLICE, PERFORMED GEAR SWING AND TIME CYCLES OF LANDING GEAR. LANDING GEAR OP CHECK NORMAL IAW CE 560 MM CH 32-01-00.

Part: ANTI-SKID SYS — MALFUNCTIONED (BRAKES) · airframe 5,957 hrs · 5,002 cycles

UPON LANDING, EXPERIENCED "HARD PEDALS" AND NO BRAKES FOR ABOUT 6 SECONDS. JUST BEFORE USING EMER BRAKING THE BRAKES SUDDENLY GRABBED VIOLENTLY. AFTER THAT THEY WORKED NORMALLY. GAINED ACCESS TO ANTI-SKID FAULT INDICATORS IN NOSE BAGGAGE AREA. FOUND NO FAULT INDICATIONS. INSPECTED BRAKE ASSEMBLIES FOR ANY DEFECTS, NONE NOTED. PERFORMED SEVERAL BUILT-IN BITE TESTS. ALL TESTS SATISFACTORY. PERFORMED TAXI CHECK AND OPERATIONAL CHECK OF BRAKE AND ANTI-SKID CONT SYSTEM. NO DEFECTS NOTED. ALL WORK PERFORMED IAW CE560 MM CH 32-42-00.

Part: BRAKE — MALFUNCTIONED (MLG) · airframe 5,957 hrs · 5,002 cycles

UPON LANDING, EXPERIENCED "HARD PEDALS" AND NO BRAKES FOR ABOUT 6 SECONDS. JUST BEFORE USING EMER BRAKING THE BRAKES SUDDENLY GRABBED VIOLENTLY. AFTER THAT THEY WORKED NORMALLY. GAINED ACCESS TO ANTI-SKID FAULT INDICATORS IN NOSE BAGGAGE AREA. FOUND NO FAULT INDICATIONS. INSPECTED BRAKE ASSEMBLIES FOR ANY DEFECTS, NONE NOTED. PERFORMED SEVERAL BUILT-IN BITE TESTS. ALL TESTS SATISFACTORY. PERFORMED TAXI CHECK AND OPERATIONAL CHECK OF BRAKE AND ANTI-SKID CONT SYSTEM. NO DEFECTS NOTED. ALL WORK PERFORMED IAE CE560 MM CH 32-42-00.

Part: LANDING GEAR — INOPERATIVE (MAINS) · airframe 4,579 hrs · 3,840 cycles

AFTER TAKEOFF COULD NOT RETRACT LANDING GEAR, DIVERTED AIRCRAFT TO SUA. ITEM IS UNDER INVESTIGATION.

Part: BRAKE ASSY — MALFUNCTIONED (MLG) · airframe 4,549 hrs · 3,417 cycles

UPON TOUCH DOWN AND INITIAL APPLICATION OF BRAKES, CAPTAIN’S SIDE HAD POSITIVE BRAKE PRESSURE BUT AIRCRAFT WOULD NOT SLOW DOWN. AFTER APPLICATION OF EXCESSIVE BRAKE PRESSURE A/C BRAKES GRABBED AND AIRCRAFT SLOWED RAPIDLY. BLED BRAKE SYSTEM, OPS CHECK OF BRAKES GOOD AT THIS TIME IAW CESSNA 560 MM CHAPTER 32-42-00.