N383QS

Part: SEAL — MISSING (ZONE 200) · airframe 7,938 hrs · 6,202 cycles

AIRFRAME VIBRATION: NOISE AND VIBRATION BETWEEN SEATS ONE AND TWO. FOUND SPOTS ALONG THE FWD WTF SEAL TO BE MISSING RTV. APPLIED RTV AS NECESSARY IAW EMB PHENOM 300 AMM 51-21-02

Part: SHROUD — LOOSE (ZONE 500) · airframe 7,923 hrs · 6,193 cycles

ENCOUNTERED A HUMMING AND VIBRATION THAT WE COULD FEEL IN THE FLOOR AT HIGHER SPEEDS. SPECIFICALLY BETWEEN 290 TO 315 KTS. THE HUMMING DID NOT SEEM TO BE RELATED TO A SPECIFIC ALTITUDE, BUT MORE TO AN AIRSPEED RANGE. THE AIRCRAFT DID NOT HANDLE ADVERSELY AND OTHERWISE OPERATED NORMALLY. THE POST FLIGHT INSPECTION DID NOT REVEAL ANY STRUCTURAL ISSUES. CORRECTIVE ACTION; PERFORMED AIRCRAFT NOISE AND VIBRATION INSPECTION. FOUND LH IB RAP SHROUD 1 VERY LOOSE IN MULTIPLE AREAS IN COMPARISON TO RH SIDE WHICH IS TIGHT AGAINST THE FLAP. REMOVED AND REPLACED LH IB FLAP SHROUD PANEL IAW PHENOM 300AMM 57-54-00/400.

Part: FLAG — OUT OF POSITION (ZONE 800) · airframe 7,848 hrs · 6,134 cycles

MAIN DOOR VISUAL INDICATOR: UPPER, RIGHT DOOR PIN GREEN FLAG IS NOT VISIBLE THROUGH THE SIGHT WINDOW WHEN THE DOOR IS CLOSED AND LOCKED CORRECTIVE ACTION: INSPECTED LATCH PIN SIGHT GLASS. NO DEFECTS NOTED. OPS CHECK GOOD. IAW EMB505 MM SDS 52-11-00.

Part: PANEL — DEFECTIVE · airframe 7,583 hrs · 5,948 cycles

AT FL410 DOOR PAX OPEN ILLUMINATED FOR 30 SECS. IT ILLUMINATED AGAIN & PERSISTED FOR THIRTY MINUTES. IT EXTINGUISHED FOR 30 SECS ON FINAL BEFORE REAPPEARING. IT EXTINGUISHED AGAIN ON TAXI & REMAINED OFF. RAN THE FULL DOOR PAX OPEN QRH. PERFORMED ADJUSTMENT OF MAIN DOOR LOCKING & UNLOCKING MECHANISM IAW AMM TASK 52-10-00-820-805-A. NO ADJUSTMENT NECESSARY. ALL MEASUREMENTS WITHIN LIMITS. PERFORMED OPS CHECK OF MED IAW 52-11-00. NOTED MOVEMENT OF MICROSWITCH CONNECTOR 3P0640 AND 4P0640 CAUSED ERRONEOUS INDICATION OF SYSTEM STATUS SYNOPTIC PAGE. REMOVED (3) OLD MOLEX CONNECTORS AND INSTALLED (3) NEW CONNECTORS IAW CMM 34-10-88. PERFORMED MED OPS CHECK, NO FAULTS NOTED. WHILE REMOVING LT FWD CABINET FOUND MAINTENANCE PANEL TO HAVE SCREWS BROKEN IN STANDOFF. REMOVED PANEL AND INSTALLED REPAIRED MAINTENANCE PERFORMED IAW AMM 31-42-01.

Part: BATTERY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 7,252 hrs · 5,661 cycles

EMERGENCY LIGHTS ALL STAY ON WITH SWITCH IN AUTO POSITION. REMOVED AND REPLACED FORWARD AL'(D AFT EMERGENCY BATTERIES IAW AMM 33·52-400-801-A, EMERGENCY IIATTERIES OPERATIONAL TEST IS GOOD IAW AMM 33·52-00-710-801-A. ALL ACCESS TO FORWARD AND AFT BATTERIES ARE CLOSED.

Part: BRAKE ASSY — UNKNOWN (ZONE 700) · airframe 7,250 hrs · 5,659 cycles

AT TOUCH DOWN, AFTER APPLYING BRAKES AND DURING BRAKE APPLICATION, THE BRAKES CONSTANTLY GRABBED AND RELEASED. THIS PROCEEDED TO GET WORSE AS AIRCRAFT SLOWED. ANY APPLICATION OF BRAKES AT SLOW SPEED CAUSED THE BRAKES TO SHAKE THE AIRCRAFT. COMPLIED WITH. A GVI OF BOTH. MLG BRAKES, NO DEFECT NOTED. COMPLIED WITH BRAKE AND EMERGENCY/PARKING BRAKE SYSTEM BLEED PER NJA TC NO TC-ES0-32-1001 REV O DATE: 21SEP2022. JL 7/15/24 SERVICED HYDRULIC RESERVOIR AS REQUIRED. CW TAXI CHECK, CHECK GOOD. ALL WORK WAS PERFORMED PER EMB PHENOM 300 AMM 12-13-00 AND 32-40-00

Part: SWITCH — FAULTED (PAX DOOR) · airframe 7,025 hrs · 5,486 cycles

DOOR PAX OPEN CAME ON AT FL410. COMPLIED WITH THE CHECKLIST AND LANDED AS SOON AS POSSIBLE. ON DESCENT THE MESSAGE WOULD GO OFF AND COME BACK ON ALL THE WAY TO THE GROND. UPON FURTHER INSPECTION THE DOOR BINDS WHEN CLOSING. THE RED HANDEL GETS STOCK. DOOR NOT SECURE. PERFORMED A GVI OF THE MED IAW AMM 52-00-00 WITH NO VISUAL DEFECTS NOTED. WHILE PERFORMING FIM FIM-4885 - 52-71-00-810-801-A - FAILURE OF MAIN DOOR SWITCH. TECHS FOUND SWITCH CONNECTOR 5P0640 TO J0640 NOT SEATED. TECHS SEATED CONNECTOR 5P0640 TO 30640 IAW SPM 20-13-21. ADJUSTED MED 52-11-00 AND PERFORMED LUBE. TECHS PERFORMED MED OPS AND FUNCTIONAL CHECK IAW AMM 52-71-20. OPS AND FUNCTIONAL CHECK GOOD WITH NO DEFECTS NOTED.

Part: WARNING MESSAGE — NO INDICATION (MAIN DOOR) · airframe 6,984 hrs · 5,454 cycles

MAIN ENTRY DOOR LOWER LOCK INDICATION DOES NOT DISPLAY GREEN WHEN THE DOOR IS CLOSED AND LATCHED. THE UPPER LOCK INDICATION DISPLAYS GREEN, AND THE EIGHT LATCH INDICATORS DISPLAY GREEN. WITH MAIN ENTRANCE DOOR CLOSED AND LOCKED, INSPECTED LOWER DOOR LOCK INDICATOR AND GREEN WAS DISPLAYED IN SIGHT, NO FAULT FOUND AT TH IS TIME.

Part: SKIN — CORRODED (ZONE 600) · airframe 6,663 hrs · 5,221 cycles

LH TOP OF WING, FOUND MULTIPLE SPOTS OF CORROSION ALONG TRAILING EDGE NEAR COMPOSITE PANELS. PERFORMED REPAIR TO LH WING SKIN CORROSION. PER: N383QS (50500302) LH WING SKIN CORROSION RFTS-109532 REV.0 DATED 14NOV23 AND EMBRAER ETD2023-P300-04806479 DATED 11/7/23 THIS IS A MINOR REPAIR.

Part: PANEL — CORRODED (ZONE 600) · airframe 6,663 hrs · 5,221 cycles

LH TOP OF WING, FOUND MULTIPLE SPOTS OF CORROSION ALONG TRAILING EDGE NEAR COMPOSITE PANELS. PERFORMED REPAIR TO LH WING SKIN CORROSION. PER: N383QS (50500302) LH WING SKIN CORROSION RFTS-109532 REV.0 DATED 14NOV23 AND EMBRAER ETD2023-P300-04806479 DATED 11/7/23 THIS IS A MINOR REPAIR.

Part: SKIN — CORRODED (ZONE 600) · airframe 6,663 hrs · 5,221 cycles

LH AND RH TOP OF WING, FOUND MULTIPLE SPOTS OF CORROSION ALONG TRAILING EDGE NEAR COMPOSITE PANELS. PERFORMED REPAIR TO RH WING SKIN CORROSION. PER: N383QS (50500302) RH WING SKIN CORROSION RFTS-109533 REV.0 DATED 13NOV23 PERFORMED REPAIR TO LH WING SKIN CORROSION. PER: N383QS (50500302) LH WING SKIN CORROSION RFTS-109532 REV.0 DATED 14NOV23.

Part: ENGINE — DAMAGED (RIGHT) · airframe 6,636 hrs · 5,200 cycles

ON CLIMB OUT APPROX 2000 FEET AND 180 KTS TWO LOUD BANGS WERE HEARD FOLLOWED BY THE RIGHT ENGINE FAILURE. -REMOVED RH CORE ENGINE DUE TO AN INFLIGHT SHUTDOWN. INSTALLED A REPAIRED REPLACEMENT ENGINE. PERFORMED ALL REQUIRED PAST INSTALLATION ENGINE RUNS/LEAK CHECKS WITH NO DEFECTS NOTED. ALL MAINTENANCE PERFORMED IAW AMM 71-00-00 & EMM 71-00-00. REMOVED RT ENGINE HYD PUMP & INSTALLED A REPAIRED HYDRAULIC PUMP. IAW AMM 29-12-01 PERFORMED LEAK CHECK OF RT HYD PUMP POST PRESSURE LINE & FITTING REPLACEMENT WITH NO DISCREPANCIES NOTED. IAW AMM 29-12-01. APPROVED FOR RETURN TO SERVICE.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,321 hrs · 4,943 cycles

CABIN EMERG LIGHT: CABIN GALLEY EMERGENCY LIGHT ON FLOOR INOP AND MISSING SCREW, CAUSING LIGHT TO PROTRUDE FROM BEZEL. //SIGNOFF// REMOVED OLD EPOXY FROM NUT PLATE/ FLOOR BOARD AND RE-APPLIED EPOXY IN REF TO PHENOM 300 SPM 20-00-00. REPLACED MISSING SCREW AND INSTALLED EMERGENCY LIGHT !AW PHENOM 300 AMM 33-26-00. OPS CHECK GOOD. NO FURTHER DEFECTS NOTED. SCREW PN ON:MS24693-S32

Part: BATTERY — DEFECTIVE (ZONE 100) · airframe 5,964 hrs · 4,672 cycles

CABIN EMERG LIGHT: EMER LIGHTS SAY ILLUMINATED IN THE ARMED POSITION. // SIGNOFF// REMOVED AND REPLACED FWD EMERGENCY BATTERY WITH NEW BATTERY IAW PHENOM 300 AMM 33·52-01. REMOVED AND REPLACED AFT EMERGENCY BATTERY WITH REPAIRED BATTERY IAW PHENOM 300 AMM 33·52-01. PERFORMED OPS TEST IAW PHENOM 300 AMM 33-52-01. OPS TEST GOOD. NO FURTHER DEFECTS NOTED AT THIS TIME. ..

Part: ENGINE — POWER LOSS (LEFT) · airframe 5,960 hrs · 4,669 cycles

WHEN ADDING POWER FOR CLIMB OUT OF 3000 FT, 4 LOUD BANGS HEARD & LT ENG ROLLED BACK TO WINDMILLING RPM. APPEARED TO BE A FADEC COMMANDED ENG SHUTDOWN. NO ABNORMAL INDS PRIOR SHUTDOWN, & EICAS MESSAGES WERE EXPECTED FOR CONDITION AFTER SHUTDOWN. POST FLT INSP, FOUND NOTHING ABNORMAL. RT ENG NORMAL DURING FLT. ACCOMPLISHED LT ENG BORESCOPE INSP & NOTED COMPRESSOR DAMAGE. PREPPED & SAFETIED ACFT FOR ENG REMOVAL. RECONFIGURED THE REPLACEMENT ENG. ACCOMP TEARDOWN & REMOVAL OF LT ENGINE. ACCOMP BUILD UP & INSTALLATION REPLACEMENT ENG. ACCOMP LT ENGINE CHECKS,CHECK GOOD, NO LEAKS IAW EMM 71-00-00-760-804 AND AMM 71-00-00/400.

Part: CONTROLLER — DEFECTIVE (ZONE 100) · airframe 5,783 hrs · 4,534 cycles

FLAP FAIL YELLOW CAS: AT TOD AIRCRAFT SUSTAINED AN APPARENT FCE1 FAILURE. FLAPS FAIL, SWPS FAULT, PTTRIM BKP FAIL AMBER CAS MESSAGES DISPLAYED. REPLACED #1 FCE P/N 462900-1017 S/N 0979 W/ REPAIRED UNIT P/N 462900-1017 S/N 0S71 IAW P-300 AMM CH 27-03-01-400-801-A PERFORMED FLAPS SYSTEM RIGGING IAW P-300AMM CH 27-S0-00-820-801-A. PERFORMED ALL REQUIRED OPS CHECKS W/ SATISFACTORY RESULTS

Part: HANDLE — LACK OF LUBE (PAX DOOR) · airframe 5,756 hrs · 4,511 cycles

MAIN DOOR HANDLE: EXTERIOR OPEN/CLOSE HANDLE NEEDS LUBRICATION. IT DOES NOT ALWAYS CLOSE FLUSH BY ITSELF. LUBRICATED EXTERIOR MAIN CABIN DOOR HANDLE !AW EMB-505 AMM 52-10-00. OPS CHECK GOOD.

Part: NONE — LOW VOLTAGE (ZONE 300) · airframe 5,008 hrs · 3,919 cycles

DURING ELT OPERATIONAL TEST, THE TRANSMIT POWER WAS BELOW MINIMUM OF 3.2 WATTS. THE ELT WAS REPLACED WITH NEW AND TESTED SATISFACTORY. THIS REPORT SUBMITTED TO COMPLY WITH PART 135 OPERATOR'S GENERAL MAINTENANCE MANUAL (GMM) REQUIREMENTS.

Part: NONE — CRACKED (ZONE 800) · airframe 5,008 hrs · 3,919 cycles

DISCREPANCY: DURING MAIN ENTRY DOOR ALTERATION INSPECTION FOUND FWD TELESCOPIC ROD DOOR BRACKET TO BE CRACKED AND MAIN DOOR STRUCTURE CRACKED AS WELL. CORRECTIVE ACTION: REMOVED MAIN ENTRY DOOR AND PERFORMED A VISUAL INSPECTION OF MAIN ENTRY DOOR FOR ADDITIONAL DAMAGE IAW EMBRAER PHENOM 300 NON DESTRUCTIVE TESTING MANUAL 52-10-00 PART 5. REMOVED TELESCOPIC ROD DOOR BRACKET P/N 500-9754-001 FWD SIDE OF THE MAIN DOOR IAW EMBRAER PHENOM 300 STRUCTURAL REPAIR MANUAL 51-41-01. PERFORMED EMBRAER TECHNICAL DISPOSITION 2022-P300-04363429 REV A DATED JAN 28,2022 AND INSTALLED NEW PART P/N 500-09754-001. RE-INSTALLED THE MAIN ENTRY DOOR IAW EMBRAER PHENOM 300 AIRCRAFT MAINTENANCE MANUAL 52-10-00.

Part: BATTERY PACK — DEFECTIVE (EMERGENCY LIGHTS) · airframe 4,194 hrs · 3,303 cycles

CABIN EMERG LIGHT: THE EMERGENCY LIGHTS IN THE CABIN REMAIN ON WITH THE EMER LT SWITCH IN THE ARM POSITION. AFTER A FEW SECONDS ALL OF THE EMERGENCY LIGHTS FLICKER RAPIDLY. THE ONLY WAY TO GET THEM TO TURN OFF WAS TO SELECT THE EMER LT SWITCH TO OFF. REMOVED AND REPLACED BATTERY PACKS. IAW EMB505 MM 33-52-01. OPS CHECK GOOD.

Part: SEAL — OBSTRUCTED (PAX DOOR) · airframe 4,134 hrs · 3,257 cycles

MAIN DOOR: MAIN CABIN DOOR WILL NOT FREEFALL FROM THE UNLATCHED POSITION WHEN CLOSED.///SIGN-OFF///FOUND EXCESS SEALANT FROM INSTALL OF MAIN CABIN DOOR FRAME RUBBER SEAL INTERFERING WITH MAIN CABIN DOOR MOUNTED RUBBER SEAL WHEN DOOR IS CLOSED AND IMPEDING FREEFALL. REMOVED EXCESS SEALANT FROM AROUND FRAME MOUNTED MAIN CABIN DOOR RUBBER SEAL PER PHENOM 300 MM 52-10-21. MAIN CABIN DOOR FREEFALL FROM CLOSED POSITION OPS CHECKS GOOD PER PHENOM 300 MM 52-10-00.

Part: HANDLE — BROKEN (PAX DOOR) · airframe 4,104 hrs · 3,234 cycles

MAIN ENTRY DOOR EXTERIOR HANDLE SHEARED OFF WHEN THE DOOR WAS CLOSED.(POST FLIGHT) REMOVED MED HANDLE AS.SY PN 505-09870-403 SN UNKOWN DUE TO HANDLE BEING BROKEN AND INSTALLED CUSTOMER SUPPLIED~ NEW UNIT PN SOS-09870-403 SN F041934000, INSTALLED MED STEPS AS REQUIRED. OPS CHECK GOOD WITH NO DEFECTS NOTED. REF MM\5050 MM 52·11-24.

Part: BALANCE WEIGHT — DAMAGED (RT ELEVATOR) · airframe 3,834 hrs · 3,027 cycles

WHILE COMPLYING WITH EMBRAER SB 505-55-0004 FOUND THE FOLLOWING FLIGHT CONTROL BALANCE WEIGHTS NOT ACCEPTABLE AND REQUIRING REPLACEMENT. ONE LT ELEVATOR HORN WEIGHT P/N PE915109-L42, 10 LT ELEVATOR ADJUSTABLE BALANCE WEIGHTS P/N PE915109-L33, SEVEN RT ELEVATOR ADJUSTABLE BALANCE WEIGHTS P/N PE915109-L33. ONE LT AILERON HORN BALANCE WEIGHT P/N PE915109-L31 AND ONE RUDDER ADJUSTABLE BALANCE WEIGHT P/N PE915109-L27.

Part: BALANCE WEIGHT — DAMAGED (LT AILERON) · airframe 3,834 hrs · 3,027 cycles

WHILE COMPLYING WITH EMBRAER SB 505-55-0004 FOUND THE FOLLOWING FLIGHT CONTROL BALANCE WEIGHTS NOT ACCEPTABLE AND REQUIRING REPLACEMENT. ONE LT ELEVATOR HORN WEIGHT P/N PE915109-L42, 10 LT ELEVATOR ADJUSTABLE BALANCE WEIGHTS P/N PE915109-L33, SEVEN RT ELEVATOR ADJUSTABLE BALANCE WEIGHTS P/N PE915109-L33. ONE LT AILERON HORN BALANCE WEIGHT P/N PE915109-L31, AND ONE RUDDER ADJUSTABLE BALANCE WEIGHT P/N PE915109-L27.

Part: SHUTOFF VALVE — DEFECTIVE · airframe 3,729 hrs · 2,949 cycles

ON TAKEOFF ROLL AND INITIAL CLIMB-OUT, CREW NOTICED A SLIGHT CABIN SMELL. PIC LIKENS IT TO HOT DUCTING, SIC THOUGHT WE FLEW OVER SMOKE FROM A FIRE. APPROXIMATELY 30 SECONDS AFTER TAKEOFF, BLEED 1 LEAK YELLOW CASS ILLUMINATED. EXECUTED QRH FOR SAME, CASS EXTINGUISHED, LATER CASS BRIEFLY RE-ILLUMINATED TWICE DURING FLIGHT AND DURING TAXI IN. DESCENDING BACK THROUGH APPROXIMATELY 5500 FEET (LFE CORRECT) WE HEARD WHAT SOUNDED LIKE A MUFFLED "POP" AND THE CABIN PRESSURIZATION RATE FAILED. CABIN DESCENT RATE EXCEEDED 1400 FPM, THEN FLUCTUATED CONSIDERABLY THROUGH REMAINDER OF FLIGHT. SIGN OFF. REMOVED LT LOWER ENGINE COWLING, REMOVED LT LOWER PLYLON PANEL FOR ACCESS TO THE PRSOV VALVE PERFORMED LT ENGINE IDLE RUN AND FOUND LEAK ON CLAMP NEXT TO PRECOOLER. RETORQUED CLAMP AND LEAK CHECKED WITH NO DEFECTS NOTED. TROUBLESHOT TO FAULTY NR 1 PRSOV FAILED CLOSED. IT IS BELEIVED POP SOUND HEARD BY PILOTS WAS THE PRSOV CLOSING, WHICH CAUSED A SUDDEN CABIN PRESSURE CHANGE DUE TO DROP OFF OF BLEED AIR PROVIDED TO AIRCRAFT FROM LT ENGINE. REMOVED FAULTY LT NR 1 PRSOV PN RYLB-53505-5 SN 0451. INSTALLED MODIFIED LT PRSOV RYLB-53505-5 SN 0324. PERFORMED PRESSURIZATION AND LEAK DOWN CHECK USING ENGINES, IAW EMB-505 AMM 21-31-00-860-803-A. CHECK GOOD, LEAK DOWN RATE FROM 4.0 PSI 1M 18 S WITHIN LIMITS. ALL WORK DONE IAW EMB-505 AMM 21-31-00,21-31-01, 36-11-00 AND 36-11-01.

Part: CONTROLLER — UNSERVICEABLE (CABIN PRESSURE) · airframe 3,606 hrs · 2,850 cycles

DURING FLIGHT AT FL 380, HAD INDICATION OF CABIN PRESSURE CHANGE OF -1200/+2000, THEN WITHIN A FEW SECONDS, HAD PRESS AUTO FAIL CAS. CABIN ALT INDICATIONS HAD STARTED CLIMBING. DESCENDED TO 10,000 WHILE RUNNING CHECKLIST. CABIN INDICATION CONTINUED TO CLIMB. LEVEL AT 10,000 FT, CABIN WAS INDICATING 41,000. DURING DECENT, HAD CAB DELTA-P FAIL CAS. ON GROUND WITH ENGINES OFF AND DOOR UP, HAD CABIN ALT OF 35,000 AND CAB ALTITUDE HI CAS. // SIGNOFF // CW FIM TASK21-31-00-810-811-A AND CONFIRMED THE ECMU HAS FAILED. REMOVED AND REPLACED THE ECMU (MODIFIED UNIT) IAW EMB PHENOM 300 21-31-01 . OPS CHECKS PERFORMED SATISFACTORILY IAW AMM 21-31-00. NO FAULTS OR DEFECTS NOTED

Part: NONE — NONE (NLG) · airframe 2,713 hrs · 2,175 cycles

WHEN LANDING GEAR LEVER SELECTED DOWN LG LEVER DISAG CAS MESSAGE APPEARED. NLG DID NOT EXTEND VERIFIED BY POSITION LIGHTS AND THE TOWER. EXECUTED QRH PROCEDURE AND ALL THREE LANDING GEAR EXTENDED. LANDED WITHOUT FURTHER INCIDENT. TROUBLESHOT NLG IAW EEJS CASE # EEJ. 03561833 PERFORMED FIM 32-61-00-810-815-A SUBTASK 810-045-A. PERFORMED EXTENSION AND RETRACTION FUNCTIONAL TEST IAW AMM 32-31-00, NO DISCREPANCY NOTED. PERFORMED CHECK OF THE GAP OF THE NOSE LANDING GEAR WOW SENSOR AND TARGET & FOUND TO BE WITHIN LIMITS IAW AMM 32-63-01. AIRCRAFT RETURNED TO SERVICE, NO DISCREPANCIES AT THIS TIME.

Part: UPLOCK SWITCH — MALFUNCTIONED (MLG) · airframe 9,681 hrs · 7,877 cycles

ON TAKEOFF DURING GEAR RETRACTION THE LT MAIN GEAR DID NOT RETRACT. GEAR UNSAFE LIGHT AND LT MAIN GEAR DOWN LIGHT REMAINED ON. GEAR EXTENDED NORMALLY. JACKED ACFT, COULD NOT DUPLICATE GEAR DISCREPANCY. PERFORMED PARALLELING CIRCUIT TEST, ALL CHECKED GOOD IAW MM 32-01-00, REV 28. DURING TROUBLESHOOTING PROCEDURES FOUND HIGH RESISTANCES IN LEFT UPLOCK SWITCH, INDICATING CIRCUIT AND INTERMITTENT DME SPLICE IN UPLOCK SWITCH HYD CIRCUIT. R & R LT MLG UPLOCK SWITCH AND RE-SPLICED WITH ENVIRONMENTAL SPLICES. WORK DONE IN REFERENCE TO MM 32-61-00, REV 28. GEAR SWINGS PROVED SATISFACTORY. DOWN JACKED ACFT.

Part: FMC — OVERHEATED (COCKPIT) · airframe 9,555 hrs · 7,759 cycles

WHILE AT CRUISE, ALTITUDE OF 27,000 FEET, THE CREW BECAME AWARE OF A STRONG ELECTRICAL ODOR; SHORTLY THEREAFTER, THE FMS UNIT WAS OBSERVED TO GO "BLANK". THE CREW DIVERTED. THE FMS UNIT APPEARED TO FEEL UNUSUALLY HOT. REMOVED FMS & SMELLED STRONG ODOR. REMOVED FMS & INSPECTED WIRING DOWN IN PEDESTAL FOR BURNS ETC. NO BURNS OR CHAFING NOTED. R & R FMS. TRANSFERED NDB DISK OVER. POWER DUP UNIT AND OPS CHECKED FMS GOOD. RESTORED PEDESTAL AVIONICS AND OPS CHECKED GOOD. ALL WORK IAW 560 MM 34-61-00.

Part: RELIEF VALVE — FAILED (HYD SYSTEM) · airframe 9,528 hrs · 7,735 cycles

DURING TAKEOFF, LT MLG APPEARED TO BE HUNG AS LANDING GEAR LIGHT INDICATED A GREEN LT MAIN AND A RED UNSAFE LIGHT. R & R THE HYD PRESSURE RELIEF VALVE WITH AN O/H VALVE. R & R RT MAIN ACTUATOR WITH AN INSPECTED UNIT. OPS AND LEAK CHECK OF BOTH ITEMS GOOD. WORK DONE IAW MM 29-11-06 AND 32-31-04. ACTUATOR PN: 1523100-8; SN: 618.

Part: LANDING GEAR — SLOW · airframe 9,510 hrs · 7,721 cycles

AFTER TAKEOFF, MLG RETRACTION TOOK LONGER THAN NORMAL TO COMPLETE. MLG NOT FULLY RETRACTED UNTIL REACHING APPROX 800 FT. MLG CAME UP ONE AT A TIME. ALL 3 GREEN LIGHTS WENT OFF, RED UNSAFE LIGHT STAYED ON APPROX 5 SECONDS. ALL OTHER HYD SYS APPEARED TO WORK NORMAL. JACKED ACFT. CYCLED MLG SLOW & NORMAL SPEEDS OPS CHECK GOOD. PERFORMED MLG TIMED CYCLE TEST. WILL MAKE TIME WITH JUST GEAR & WITH RUNNING FLAPS AT SAME TIME AS MLG RETRACTION. ALL MLG UNLOCKED. MOVED MLG THROUGH FULL TRAVELS BY HAND, NO DEFECTS OR BINDING NOTED. FINAL MLG SWINGS GOOD IAW MM 32-01-00. RAN MLG SEVERAL MORE TIMES WITH NORMAL & REDUCED FLUID FLOW. RAN FLAPS & MLG TOGETHER. NO LAG TIME. SYS OPS CK GOOD IAW MM 32-01-00.

Part: CONNECTOR — CORRODED (MLG) · airframe 9,506 hrs · 7,718 cycles

DURING LANDING ROLL OUT, AT APPROX 20K, AND HOLDING CONSTANT PRESSURE ON THE BRAKES, THEY COMPLETELY RELEASED. PRESSED DOWN HARDER AND THE PEDDLES WERE SOLID AND WOULD NOT MOVE. AS SOON AS PRESSURE ON THE PEDDLES WAS RELEASED NORMAL BRAKING RETURNED. THERE WAS NO INDICATION OF BRAKE OR ANTI-SKID FAILURE ON THE ANNUCIATOR. REMOVED ANTI-SKID FAULT DISPLAY UNIT AND CONNECTOR DUE TO CORRISION ON CONNECTOR AND UNIT. INSTALLED NEW CONNECTOR AND REPAIRED DISPLAY UNIT LAW MM CH 32-42-00, OPS CHECK GOOD.

Part: INDICATION SYS — MALFUNCTIONED (MLG) · airframe 9,035 hrs · 7,336 cycles

AT GEAR RETRACTION ALL THREE GEAR CAME UP AND LIGHTS WENT OUT, BUT "UNLOCK" LIGHT REMAINED ILLUMINATED. THEN LEFT MAIN INDICATOR GREEN LIGHT CAME ON AGAIN THEN WENT OUT. (RT MAIN DID NOT EXTEND). THEN ALL LIGHTS WENT OUT.

Part: DOWNLOCK SWITCH — UNKNOWN (MLG) · airframe 9,035 hrs · 7,336 cycles

REMOVED AND REPLACED LT MLG ACTUATOR DOWNLOCK SWITCH IAW MM 32-31-04. OPS CHECK GOOD. ACCOMPLISHED LASH CHECK ON LT MLG ACTUATOR IAW MM CHAPTER 32-31-04. LASH CHECK GOOD.

Part: FMC — SMOKE (COCKPIT) · airframe 91,033 hrs · 7,331 cycles

SHORTLY AFTER LEVELING OFF AT FL410 WE STARTED NOTICING WHAT WE THOUGHT WAS A STRONG ODOR. PAX ALSO NOTICED THE ODOR THROUGHOUT THE CABIN . A FEW MINUTES LATER THE FMS SCREEN WENT BLANK AND WAS VERY HOT TO TOUCH. ABOUT ONE MINUTE LATER WE NOTICED A FEW SMALL PUFFS OF SMOKE COME FROM THE TOP OF THE FMS. REPLACED DEFECTIVE FMS WITH ANOTHER UNIT. INSTALLATION IAW MM 34-61-03 RAN ACFT & SYSTEM'S FOR ONE HR WITH NO SMOKE ISSUES.

Part: BRAKE SYS — MALFUNCTIONED

DURING LANDING, THE LT SEAT BRAKES ARE RELEASING AT AROUND 30 KNOTS. NO MATTER HOW MUCH PRESSURE IS APPLIED. ONCE IT OCCURS, ADDITIONAL PRESSURE DOES NOTHING. COMPLETELY RELEASING THE BRAKES AND REAPPLYING PRESSURE DOES SOLVE THE PROBLEM. C/W ULTRA BRAKE BLEEDING PROCEDURE IAW ENGINEERING LETTER M344-08-10 DATED 5/2/08. OPS & LEAK CK AT BOTH PILOT'S & CO-PILOT'S BRAKE SYSTEMS GOOD.

Part: BRAKE — MALFUNCTIONED · airframe 7,606 hrs · 6,176 cycles

DURING LANDING ROLL F.O. (COPILOT SIDE) STATED (NO BRAKES), BRAKE PEDALS FELT VERY SPONGY. NORMAL BRAKING PILOT SIDE. NO LEAKS OBSERVED ON POSTFLIGHT. [4-27-07] BLED THE ANTI-SKID BRAKE SYSTEM IAW THE BLEED PROCEDURE IN CE560 MM CH 32-42-00. NO FURTHER DEFECTS NOTED.

Part: SPLICE — DEFECTIVE · airframe 7,261 hrs · 5,907 cycles

GEAR WOULD NOT RETRACT AFTER TAKEOFF. DISCOVERED DEFECTIVE SPLICE JUST AFT OF P160 CONTACT C. REPAIRED SPLICE. PERFORM OPS. TEST OF LDG SYSTEM. NO DEFECTS NOTED. ALL WORK PERFORMED IAW MM 32-01-00 AND W/D 32-60-01, 32-20-01 AND SB560-32-18.

Part: LIMIT SWITCH — FAILED (MLG) · airframe 6,258 hrs · 5,048 cycles

LANDING GEAR WOULD NOT RETRACT AFTER T/O. FMS PLAN PAGE 5 FLIGHT TIMES DID NOT ACTIVATE AND FLIGHT TIME CLOCK DID NOT START AFTER T/O. REPLACED LEFT HAND MAIN SQUAT SWITCH WITH A NEW ONE IAW CE560 MM CH 32-61-00, OPS CHECK GOOD.

Part: BRAKE ASSY — MALFUNCTIONED (MLG) · airframe 6,156 hrs · 4,955 cycles

BRAKES SEEMED TO FAIL ON LANDING ROLLOUT AROUND 35KTS FOR ABOUT 2 SECONDS. FAILURE WAS ACCOMPANIED BY CLICKING NOISE UNDER PILOTS FLOORBOARD AREA. BRAKES WORKED WELL DURING TAXI IN. REQUIRES HIGH SPEED TAXI CHECK WITH ANTI SKID AND WITHOUT IT ON. ITEM IS UNDER INVESTIGATION.

Part: SMOKE — DETECTED (COCKPIT) · airframe 4,219 hrs · 3,403 cycles

DURING GROUND OPERATION WITH GPU PLUGGED IN AND AVIONICS SYSTEM ON, ODOR AND SMOKE FILLED CABIN. SMOKE CAME FROM THE COCKPIT.