N348QS

Part: BATTERY — DEFECTIVE (ZONE 100) · airframe 7,978 hrs · 6,275 cycles

EMERG EXIT SIGN/LIGHT: AT CRUISE ALTITUDE, EMERGENCY LIGHTS STARTED TO FLICKER. REPEAT WRITE UP. //SIGNOFF// REMOVED AND REPLACED #1 EMERGENCY BATTERY PN: 7450LS-00 SN: 005807 WITH REPAIRED PN: 7450LS·00 SN: 005104. PERFORMED SATISFACTORY OPS CHECK. WORK PERFORMED IAW EMB PHENOM 300 AMM 33-52-01-960-80L·A. MULTIMETER: AOG-008 CAL DUE: 03/2024

Part: BATTERY — DEFECTIVE (ZONE 100) · airframe 7,976 hrs · 6,273 cycles

45 MINUTES INTO OUR FLIGHT PBI-MMUN, EMERGENCY CABIN LIGJTS TURNED ON AND STAYED ON WORH TJE EMER LT IN THE ARM POSITION. 10 MINUTES BEFORE LANDING LIGJTS STARTED FLICKERING. REMOVED SUSPECTED DEFECTIVE EMERGENCY BATTERY #2 AND INSTALLED CUSTOMER SUPPLIED TESTED EMERGENCY BATTERY IAW MM 33-52-01. COMPLETED OPS CHECK OF THE #2 EMERGENCY BATTERY ALL STEPS COMPLETED AND PASSED MM 33-52-01.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,407 hrs · 5,796 cycles

CABIN EMERG LIGHT: DURING ENGINE START EMERG LIGHT NOT ARMED CAS MESSAGE APPEARED. THEN EXTINGUISHED AT COMPLETION OF START. DURING FLIGHT EMERG LIGHTS BEGAN TO FLASH. REMOVED AND REPLACED FWD EMER BATTERY AND AFT EMER BATTERY DUE TO LOW VOLTAGE. IAW AMM 33-52-01. OPS CHECK GOOD AT THIS TIME.

Part: MODULATING VALVE — FAULTED (COCKPIT TEMP) · airframe 7,027 hrs · 5,515 cycles

LEVEL AT FL430, HAD A DUCT 1 OVERTEMP CASS MESSAGE. RAN THE QRH & COULD NOT GET IT TO GO AWAY UNTIL PULLED THE THROTTLE TO IDLE. DIVERTED AND LANDED WITH THE NR 1 THROTTLE AT IDLE. REMOVED COCKPIT TEMPERATURE MODULATING VALVE AND INSTALLED OVERHAULED COCKPIT TEMPERATURE MODULATING VALVE IAW AMM 21-61-02. OP CHECKED GOOD, NO FAULTS. REMOVED DUCT TEMPERATURE SENSOR AND INSTALLED NEW DUCT TEMPERATURE SENSOR IAW 21-61-03-000-801-A AND 21-61-03-400-801 OP CHECKED GOOD, NO FAULTS.

Part: WARNING MESSAGE — FALSE ACTIVATION · airframe 4,961 hrs · 3,923 cycles

AMBER EICAS MESSAGES "GRD SPOILER FAIL " AND "PITCH TRIM NORMAL FAULT" AND WHITE "SPOILER FAULT" ALL OCCURRED SIMULTANEOUSLY. DATA PATH FAIL OCCURRED ON GTC ALSO. TECH DOWNLOADED CMC DATA AND SENT TO EMBRAER FOR REVIEW, EMBRAER ADVISED THAT THE FCE P, ESE11TED AN ELECTRICAL TRANSIENT DURING FLIGHT AND FOR THAT REASON LOST CONNECTION WITH THE GIA AND IASP. FAULTS WERE CLEARED SHORTLY AFTER. TECH PERFORMED A GENERAL VISUAL INSPECTION OF FCE 2 IN REFERENCED WITH EMBRAER PHENOM 300 MAINTENANCE MANUAL CHAPTER 27-03-0L NO DEFECTS WERE NOTED. PERFORMED AN A OPERATIONAL CHECK OF THE FCE 2 IN REFERENCE WITH EMBRAER PHENOM 300 MAINTENANCE MANUAL CHAPTER 27-40-00 AND 27-60-00. NO DEFECTS WERE NOTED. TECH CAN NOT DUPLICATE DISCREPANCY AT THIS TIME. GAINED ACCESS AND REMOVED SUSPECT FCE 2 DUE TO AMBER EICAS MESSAGES "GRD SPOILER FAIL " AND "PITCH TRIM NORMAL FAULT" AND WHITE "SPOILER FAULT' ALL OCCURRED SIMULTANEOUSLY AND DATA PATH FAIL OCCURRED ON GTC. INSTALLED REPAIRED FCE 2 AND PERFORMED RIGGING PROCEDURES AND OPERATIONAL CHECKS OF THE GROUND SPOILER AND THE PITCH TRIM SYSTEMS. NO FURTHER DEFECTS NOTED AT THIS TIME. ALL WORK COMPLETED IN REFERENCE WITH EMBRAER PHENOM 300 MAINTENANCE MANUAL CHAPTERS 27-40-00, 27-60-00, AND 27-03-01.

Part: CONTROL UNIT — MALFUNCTIONED (BRAKE SYSTEM) · airframe 3,627 hrs · 2,899 cycles

BRK FAIL YELLOW CAS ILLUMINATED - BRK FAIL YELLOW CAS MESSAGE IN FLIGHT. COMPLRETED CHECKLIST AND DIVERTED. INSPECTED BCU CANNON PLUG, NO DEFECTS NOTED. PERFORMED BCU FUNCTIONAL CHECK AND NOTED LH BRAKE PRESSURE TO BE VERY IRRATIC AND SHOWING BETWEEN 15-555 PSI WITH BRAKES NOT APPLIED. REPLACED PRESSURE TRANSDUCER AND BCU AND SYSTEM TESTED GOOD.

Part: ENGINE — FLAMED OUT (NR 1) · airframe 12,895 hrs · 10,439 cycles

ENGINE 1 HAD A UNCOMMANDED FLAME OUT ON THE RAMP PRIOR TO TAXI. ALL ENGINE INDICATIONS WERE NORMAL PRIOR TO THE FLAMEOUT. REMOVED COWL, INSPECTED ENGINES, FOUND THE IDLE DETENT FRICTION OUT OF ADJUSTMENT. AJUSTED IDLE DETENT FRICTION TO PROPER AJUSTMENT. RAN ACFT AND ENGINE DID NOT FLAME OUT WHEN THROTTLE WAS RETURNED TO IDLE. ALSO ENGINE MADE T/O POWER OF THE DAY. REINSTALLED COWLING. ALL IN REF TO MM 76-4-00.

Part: BRAKE ASSY — WEAK (MLG) · airframe 12,893 hrs · 10,438 cycles

BRAKES ON BOTH THE PIC AND THE SIC SIDE FEEL SPONGY. BLED BRAKE SYS IAW MM 32-42-00. SERVICED BRAKE RESERVOIR AND SAFETIED. TAXI CHECKED ACFT. OPS & LEAK CHECKED GOOD FROM PILOT AND COPILOT SIDE.

Part: SERVO VALVE — MALFUNCTIONED (ANTI-SKID SYS) · airframe 12,135 hrs · 9,785 cycles

ON LANDING, CAPTAIN SIDE BRAKES VERY HARD. BRAKES DID NOT ENGAGE INITIALLY WITH NORMAL FOOT PRESSURE. REMOVED AND REPLACED ANTI-SKID SERVO VALVE WITH O/H ASSY, OPS AND LEAK CHECK IS GOOD AT THIS TIME. IAW MM 32-42-05 TAXI CHECKED ACFT. DUPLICATED SQK. PREFORMED ANTI SKID FUNCTINAL TEST FOUND LT BRAKE PRESS AT 1100 PSI AND RT AT 800 PSI, SHOULD BE 800 ON EACH SIDE. T/S TO BAD ANTI-SKID VALVE. MX ACTION SATISFACTORY. REMOVED DEFECTIVE SERVO VALVE. INSTALLED O/H SERVO VALVE. SERVICED ACCUMULATOR, BLED ANTI-SKID SYS. PERFORMED FUNCTINAL TEST OF ANTISKID SYS, CLEANED AREA, OPS AND LEAK CHECK IS GOOD AT THIS TIME. REV MM 32-42-05.

Part: BRAKE ASSY — MALFUNCTIONED (MLG) · airframe 12,135 hrs · 9,785 cycles

ON LANDING, CAPTAIN SIDE BRAKES VERY HARD. BRAKES DID NOT ENGAGE INITIALLY WITH NORMAL FOOT PRESSURE.

Part: COMPRESSOR — SMOKE (AIR CON SYSTEM) · airframe 12,040 hrs · 9,708 cycles

WITH GPU ON AND FREON AIR ON FOR LESS THAN 10 MIN, THERE WAS CONSIDERABLE AMOUNT OF SMOKE COMING OUT OF THE HELL HOLE. REMOVED AND REPLACED AIR CONDITIONING COMPRESSOR AND CONDENSER MODULE ASSY IAW MM 21-52-00. OPS AND LEAK CHECKS GOOD.

Part: BRAKE ASSY — WEAK (MLG) · airframe 11,426 hrs · 9,216 cycles

BRAKES PULL AIRCRAFT NOSE HARD LT WHEN EQUAL PRESSURE IS APPLIED TO BOTH BRAKE PEDALS DURING LANDING ROLLOUT. BLED BRAKES IAW C560 M/M 32-42-00. TAXI CHECKED/BRAKE CHECKED A/C. OPS CHECKS NORM.

Part: SQUAT SWITCH — MALFUNCTIONED (MLG) · airframe 11,296 hrs · 9,112 cycles

THE CABIN WOULD NOT PRESSURIZE AFTER TAKEOFF. 10-29-07 TROUBLESHOT TO INTERMITTENTLY FAILED LEFT SQUAT SWITCH. REMOVED AND REPLACED LT SQUAT SWITCH. OPERATIONAL CHECKS GOOD AT THIS TIME. WORK DONE IAW. CESSNA MODEL 560 M.M. CHAPTER 21-31-04.

Part: BRAKE ASSY — WEAK · airframe 11,277 hrs · 9,093 cycles

EXCESSIVE BRAKE PRESSURE WAS REQUIRED TO STOP AIRCRAFT UNDER NORMAL TAXI SPEED. BRAKES WERE VERY SOFT AND SPONGY. BLED BRAKES & SERVICED RESERVOIR I/A/W C560 M.M 32-42-00. OPS CHECK GOOD.

Part: BETA SWITCH — OUT OF ADJUST (ENGINE CONT SYS) · airframe 10,272 hrs · 8,314 cycles

PERFORMED SPEED BRAKE AUTO-STOW CHECK. WHEN RETARDED LT THROTTLE TO IDLE, ENGINE SHUT DOWN. PERFORMED SPEED BRAKE SYSTEM TEST SEVERAL TIMES, COULD NOT DUPLICATE DISCREPANCY. ADJUSTED 85 PERCENT N2 SWITCH TO MANUFACTURE'S SPECS, OPS CHECK GOOD IAW MM 27-61-00.

Part: FAN — BURNED OUT (CABIN) · airframe 9,064 hrs · 7,359 cycles

DESCENDING THROUGH 16,000 FT HEAVY SMOKE IN COCKPIT. SMELLED OILY BUT WAS UNABLE TO DETERMINE THE SOURCE. NOTICED CABIN FAN C/B POPPED DURING SHUTDOWN. REPLACED DEFOG BLOWER ASSY PER CE560 M/M 21-21-01, OPS CHECKED GOOD.

Part: WARNING LIGHT — ILLUMINATED (FUEL SYSTEM) · airframe 8,946 hrs · 7,273 cycles

DURING THE TAKEOFF ROLL, THE LEFT FUEL LOW PRESSURE LIGHT ILLUMINATED, FOLLOWED BY BOTH THE LEFT AND RIGHT FUEL BOOST PUMPS ON ILLUMINATING. CHECKED FUEL TANKS FOR FUEL CONTAMINATION, NONE FOUND. INSPECTED FUEL FILTERS PER CE560 MM 28-00-02, FOUND CLEAN & FREE OF CONTAMINATION. RAN BOTH ENGINES AT TAKEOFF POWER FOR SEVERAL MINUTES. COULD NOT DUPLICATE PROBLEM, ALL CHECKS NORMAL.

Part: PRESSURE SWITCH — FAILED (BRAKE ASSY) · airframe 8,767 hrs · 7,129 cycles

DURING LANDING BRAKES FAILED COMPLETELY, EMERGENCY BRAKE SOURCE WAS USED TO STOP AIRCRAFT. REMOVED AND REPLACED PRESSURE PUMP RELAY P/N M12415602, REMOVED AND REPLACED HIGH PRESSURE SWITCH. OPS AND LEAK CHECK GOOD, BLED BRAKES AS REQUIRED, ALL WORK DONE IAW CITATION 560 MM CHAPTER 32-42-09 &32-42-00.

Part: PRESSURE SWITCH — FAILED (BRAKE SYSTEM) · airframe 8,737 hrs · 7,103 cycles

DURING TAXI AFTER LANDING, THE RIGHT AND LEFT BRAKE PEDALS WENT TO THE FLOOR WITH NO BRAKES ON BOTH LEFT AND RIGHT SIDES. AFTER PUMPING A COUPLE OF TIMES, BRAKES CAME BACK FULL, THEN FAILED AGAIN, THEN CAME BACK AGAIN, STOPPED PLANE AND GOT TUGGED IN. REMOVED AND REPLACED BRAKE LOW PRESSURE SWITCH WITH NEW AND NEW O-RING, PERFORMED ANTI-SKID SYSTEM FUNCTIONAL TEST, ALL CHECKS GOOD AND NO LEAKS DETECTED. NO DEFECTS NOTED AT THIS TIME, ALL WORK PERFORMED IAW CESSNA 560 MM CHAPTER 32-42-00.

Part: PICCOLO TUBE — CORRODED (NR 1 ENGINE)

DURING ROUTINE PHASE 1-4 INSP, THE MECH GRABBED THE LIP BLEED AIR FEED TUBE NR 1 ENGINE AND APPLIED PRESSURE BACK AND FORTH, A NOISE WAS HEARD BANGING AT EACH STROKE. AFTER FURTHER DISASSEMBLY (REMOVAL OF LIP) FOUND THE 6552502-3, PICCOLO ASSY ATTACH LEGS (2 EA) .3333 CRACKED, AND ALMOST BROKEN. AT THIS TIME THERE WAS NO DAMAGE TO THE LIP SKIN FROM CHAFFING. LOCATED AND INSTALLED A NEW PICCOLO ASSY USING SAME TYPE FASTENERS REMOVED. ATTACHED PICTURES.

Part: RELIEF VALVE — MALFUNCTION (HYD SYSTEM)

CREW REPORTS GEAR FAILS TO COMPLETE RETRACT CYCLE. FOUND 1500 PSI RELIEF VALVE OPENING PREMATURELY @ 1100 PSI. THIS CAUSED REPORTED CONDITION. FOUND THIS SAME CONDITION ON 560-0331 WITH 1417 HOURS. SUBMITTER RECOMMENDS TO ADD PRESSURE CHECK AT 300 HOUR INTERVALS WHEN GEAR SWINGS ARE PERFORMED.

Part: ADJUSTER TUBE — LOOSE (BRAKE)

DURING PRE-FLIGHT INSPECTION, THE BRAKE ASSEMBLY ADJUSTER GUIDE TUBE WAS FOUND PROTRUDING ON S/N 2314 AND S/N 2362. THE ADJUSTER ASSEMBLY WAS LOOSE. REMOVED BOTH ASSEMBLIES AND SENT OUT FOR OVERHAUL.

Part: SKIN — CRACKED (RUD LT SIDE LE)

LT SIDE OF BOTTOM L/E SKIN HAS A 1 INCH HORIZONTAL CRACK ALONG THE RIVET LINE. THIS IS THE SAME AREA OF MANY OTHER RUDDERS, AND IS THE EIGHTH (8) OCCURRENCE OF THIS PROBLEM.