N343QS
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| NETJETS AVIATION, INC. (DXTA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
DURING THE APPROACH WHILE SELECTING FLAPS FROM 2 TO FULL WE RECEIVED A YELLOW FLAP FAIL CAS MESSAGE. WE ACCOMPLISHED THE RESPECTIVE QRC AND TRIED CYCLING THE FLAPS THREE TIMES AND THEY DID NOT MOVE. DURING THE POST FLIGHT IT APPEARS THAT BOTH THE RT AND LT FLAPS HAD FAILED IN THE SAME POSITION. ARRIVED AT AIRCRAFT AND POWERED UP WITH NO FAULTS ACTIVE, COMPETED FLAP OPS CHECKS . CYCLED POWER AND CYCLED FLAPS 2 MORE TIMES, CYCLED POWER AND CYCLED 2 MORE TIME WITH NO DEFECTS NOTED,SPOKE WITH CANTACT CEMTER AND NO FAULT HISTORY SO THE SUGGESTED RELEASE OF AIRCRAFT. ALL WORK ACCOMPLISHED IAW PHENOM 300 AMM 27-50-00
DURING TAXI OUT WE RECEIVED A VENTRAL RUDDER FAIL CAS FOLLOWED BY AP FAIL AND YD FAIL. WHEN WE STOPPED TAXIING, ALL MESSAGES DISAPPEARED. WHEN WE STARTED TO TAXI AGAIN, THEY IMMEDIATELY CAME BACK. CORRECTIVE ACTION: POWERED ON AND NO CAS MESSAGE PRESENTED. PERFORMED SUCCESSFUL OPS CHECK OF RUDDER WITH NO ISSUES. DOWNLOADED ARES DATA AND SENT, TEXTRON CAME BACK WITH THE MESSAGE POSTED DUE TO STANDBY RUDDER RESERVOIR SYSTEM LOW. VERIFIED THE RESERVOIR WAS LOW AND SERVICED, THEN RESTORED AIRCRAFT TO ORIGINAL CONFIGURATION. WORK PERFORMED IAW AMM 12 10 47.
MAIN PAX DOOR DOWN LOCK LATCH MECHANISM IS IN-OP. INSPECTED MAIN PAX DOOR AND CHECKED LENGTH OF HOIST ROD. ADJUSTED THE MAIN DOOR HOISTING ROD TO 8.5 INCHES PER AMM RECOMMENDATIONS. OPERATIONAL CHECKED GOOD. WORK DONE IAW PHENOM 300 AMM 52-10-00.
DURING CRUISE WE HAD A FUEL 1 FEED FAULT CAS MESSAGE. FUEL SYNOPTIC SHOWS YELLOW X OVER PUMP. QRH PROCEDURE SHOWS CREW AWARENESS. CORRECTIVE ACTION: REMOVED THE LH FUEL PRESSURE SWITCH REMOVED P/N: D98C07-61L S/N:2328. INSTALLED CUSTOMER SUPPLIED, NEW SWITCH P/N: D98C07-611. S/N: 3173. PERFORMED LEAK CHECK/OP CHECKS WITH NO DEFECTS NOTED AT THIS TIME WORK PERFORMED WITH REF. TO THE PHENOM 300 AMM 28-45-01.
REPEAT WRITE UP ON APPROACH TO LANDING IN KYIP WE RECEIVED GEN 1 OFF BUS YELLOW CAS ACCOMPANIED BY SHED BUS OFF. PLACED GEN 1 SWITCH IN OFF POSITION PER QRH DUE TO THE SHORT DURATION OF FLIGHT REMAINING. PLEASE NOTE THAT N1 FOR THE SAME RESPECTIVE THROTTLE POSITION APPEARS TO DOFFER BY APPROXIMATELY 1% POWERED ACFT & STARTED 2 ENG TO IDLE WITH NO DEFECTS. STARTED NR 1 ENG TO IDLE, NO DEFECTS CYCLED NR 1 GEN TO OFF & BACK TO AUTO. AFTER SWITCHING GEN 1 TO AUTO GEN 1 DID NOT COME BACK ON LINE. SHUT DOWN NR 1 ENG & ATTEMPTED TO RESTART, ENG WOULD NOT ROTATE & RECEIVED NO FAULTS, POWERED DOWN ACFT & POWERED UP. STARTED NR 2 ENG TO IDLE & ON STARTING NR 1 ENG TO IDLE NOTED GEN 1 OFF BUSS CASS. SHUTDOWN DOWN NR 1 ENG & ON TRYING TO RESTART, NOTED NO ENG ROTATION & NO FAULTS. ACCESSED DISTRIBUTION BOXES & COMPLETED GVI, NO DEFECTS .ACCESSED LT STARTER /GEN BRUSHES & COMPLETED DIMENSIONAL CHK, NO DEFECTS, REPOSITIONED LT/RT STARTER/GEN & COMPLETED ENG STARTS TO IDLE & ISSUES STAYED ON NR 1 SIDE. REPOSITIONED STARTER GENS TO ORIGINAL POSITIONS & CLOSED ACCESS . ON SECURING RT ENG LOWER COWLING, NOTED FWD UPPER LIVE LOCK PIN ON LOCK STOPPER WOULD NOT SCREW INTO LIVE LOCK . LIVE LOCK RECEPTACLE CORRODED WITH THREADS BARELY VISIBLE . ACCESSED TO GLC 1 K0010 & GLC 2 K0016, REPOSITIONED, STARTED NR 1 ENG TO IDLE, NO DEFECTS. STARTED NR 2 ENG & ON REACHING IDLE NOTED GEN 2 OFF BUSS CASS MESSAGE. SHUTDOWN NR 2 ENG & ATTEMPTED TO RESTART WITH NO ROTATION & NO FAULTS . POWERED DOWN ACFT & REPOSITIONED GLC 1 & 2 TO ORIGINAL POSITIONS. R & R GLC 1 K0010 WITH A NEW UNIT. OPS CHKD GOOD, NO DEFECTS. WORK COMPLETED IAW AMM 24-31-01, 24-31-03 & FIM 24-31-00-810-803-A. ORIGINAL SUBMISSION DATE: 11/11/2025
EMERGENCY LIGHTING: EMERGENCY LIGHTS FLASH CONTINUOUSLY UPON LANDING AND TAXI. CORRECTIVE ACTION: REPLACED FWD & AFT EMERGENCY BATTERIES. OPS CHECK GOOD. ORIGINAL SUBMISSION DATE: 1/16/2025
AT FL400 PAX DOOR OPEN LIGHT CAME ON. REMAINED ON UNTIL DECENDING THROUGH FL370. REMOVED PIN, P/N: 43031-0009 NSN AND INSTALLED CUSTOMER SUPPLIED NEW PIN, P/N: 43031-0009 NSN. PERFORMED OPERATIONAL CHECK OF THE MAIN DOOR OPEN LIGHT WITH NO DEFECTS NOTED. REF EMBS0S 52-10-00.
WHEN EMER LIGHTS ARE ON, THE MIDDLE, CEILING FLOOD LIGHT DOES NOT ILLUMINATE; WHEN TURNING ON THE SEAT BELT SIGN, MIDDLE CEILING FLOOD LIGHT DOES ILLUMINATE. FORWARD FACING CEILING SEAT BELT SIGN DOES NOT ILLUMINATEL. AFTER TROUBLESHOOTING, DIGGING IN WM & TALKING MCC, TECH WAS ABLE TO FIND PROBLEM. ACFT HAD RECENTLY GONE TO INSPECTION & HEADLINER WAS POSSIBLY REMOVED TO PERFORM THAT INSPECTION. FOUND THE WIRING HARNESS AND CONNECTORS 1647 AND 2076 WERE CROSSED UP, THUS CAUSING THE ISSUE THE DISCREPANCIES THE PILOTS HAD REPORTED. FOUND #2 EMERGENCY FLOOD LIGHT ASSY WAS INOP, REMOVED FAULTY LIGHT ASSY & REPLACED. ABLE TO FISH THE WIRING HARNESSES & CONNECTORS BACK TO THEIR ORGINIAL POSITION & PERFORM SEVERAL OPS CHECKS WITH SATIS RESULTS. REF. WM DIAGRAM 33-50-50-1, WM DIAGRAM 33-23-50-1, & AMM 33-52-03
RIGHT ENGINE ENGINE OIL PRESSURE INDICATION: WITHIN A MINUTE OF EXPERIENCING SEVERVE TURBULENCE A SMELL WAS NOTICED AND THEN SMOKE IN THE CABIN WAS OBSERVED. OIL PRESSURE WENT TO 0 AND WE PROCEEDED TO SHUT DOWN THE RIGHT ENGINE. ENGINE EXCEEDANCE WHITE CAS ILLUMINATED AS WE BROUGHT THE AIRCRAFT TO A STOP ON THE TAXIWAY. REMOVED THE UNSERVICEABLE RT ENGINE AND INSTALLED A REPAIRED ENGINE. PERFORMED ENGINE OPS CHECKS, WITH SATISFACTORY RESULTS, ENGINE WITH IN EMM PARAMETERS, AND NO LEAKS NOTED. MAINTENANCE ACCOMPLISHED IAW AMM 71-00-00/400 & EMM 71-00-00-760-804.
DURING LEVEL FLIGHT AT 32000 WE HAD THE FOLLOWING AMBER CAS MSGS SWPS FAULT,FLAP FAIL,PTRIM BKP FAIL ALSO AMBER X ON FLAP SYNOPTIC FLAP POSITION ,FLAP INDICATION AND AMBER X ON PITCH SYNOPTIC INDICATOR . ONE WHITE CAS MSG FOR SPOILER FAULT. WE RAN THE ASSOCIATED QRH/QRC CHECKLIST LANDED WITH FLAP 0 NO ISSUE MSGS STAYED UNTIL POWER REMOVED FROM AIRCRAFT. //SIGNOFF// POWER UP NO ABNORMAL CAS MESSAGES WERE OBSERVED. RECEIVED CRC EMAIL, PER CRC, CMC LOG DATA SUGGESTS COMPLETION OF FIM TASK FOR ITEM RESOLUTION. PERFORMED EMB-505 FIM TASK 27-03-00-810-811-A. PER BLOCK 6 OF FLOW DIAGRAM, WIRING CHECKS WERE FOUND TO BE SATISFACTORY, EFFECTIVELY DEEMING ITEM TO BE A TRANSITORY CONDITION AND ELIGIBLE FOR RTS. OPS CHECK GOOD. CONTACTED MCC, MCC CONCURS WITH FINDINGS, ITEM TO BE SIGNED OFF.
CABIN EMERG LIGHT: EBATT CABIN LIGHTS FLICKERING WHEN ON. //SIGNOFF// FOUND CABIN OVERHEAD LIGHTING PULSING WITH GPU ON. STARTED ENGINE IAW PHENOM 300 AMM 71-00-01. LIGHTS NO LONGER FLICKER OR PULSE. PERFORMED EMERGENCY LIGHTING OPS CHECK IAW PHENOM 300 AMM 33-52-00. OPS CHECKS GOOD.
DOOR PAX OPEN CAS ILLUMINATED IN FLIGHT. FIRST INTERMITTENT, THEN CONTINUOUS AT 37000FT. DIVERTED. BELOW 10000FT, THE MESSAGE WENT OUT.//CORRECTIVE ACTION//PRINTED MEL PROCEDURES, REVIEWED MEL AND COMPLIED WITH MEL REQUIREMENTS. ACCESSED LOWER AFT FRAME DOOR SWITCH AND ADJUSTED AS REQUIRED. REMOVED STEPS AND ADJUSTED DOOR LEVER UPPER SWITCH AS REQUIRED. THIS SWITCH WAS NOT ACTIVATING AS QUICK AS THE OTHERS. INSTALLED STEPS AND ACCESS PANELS. RAN ENGINES AND OPENED DOOR AND GOT CAS MSG AS REQUIRED. CLOSED MED AND CAS MSG EXTINGUISHED AS REQUIRED. PRESSURIZED TO 4.5 PSID AND DOOR CAS MSG STAYED EXTINGUISHED. ALL WORK PERFORMED IAW PHENOM 300 AMM 52-71-20 & 21-31-00.
CABIN EMERG LIGHT: OF THE THREE CENTER EMERGENCY CEILING LIGHTS THE MIDDLE LIGHT DOES NOT ILLUMINATE WHEN THE EMER LT SWITCH IS PLACED TO ON//CORRECTIVEACTION//REMOVED CABIN HEADLINER CENTER EMER. LIGHT FIXTURE AND FOUND CONNECTION TURNED 180 DEGREES. CONNECTED PLUG WITH CORRECT ORIENTATION. RE- LIGHT FIXTURE. FUNCTION TEST GOOD AT THIS TIME. ALL WORK DONE IAW EMB 505 AMM33-52-00/500
MLG BRAKE PRESSURE: ON TAXI OUT BOTH BRAKES WERE SHUDDERING WHEN APPLIED. AND WOULD RATTLE THE WHOLE AIRCRAFT. THIS HAPPENED WHEN APPLYING BOTH BRAKES OR EACH BRAKE INDEPENDENTLY.//CORRECTIVE ACTION//PERFORMED BRAKE ASSEMBLY GENERAL VISUAL INSPECTION AND NLG AND MLG TIRES GENERAL VISUAL INSPECTION IN ACCORDANCE WITH EMBRAER 5058 AMM 32-45-21-21-802-A AND 32-45-00-210-801-A. NO DISCREPANCIES NOTED. PERFORMED NORMAL BRAKE AND EMERGENCY/PARKING-BRAKE SYSTEMS - BLEEDING IN ACCORDANCE WITH EMBRAER 5058 AMM MPP 32-40-00-870-801-A. PERFORMED BRAKE SYSTEM FUNCTIONAL CHECK. NO DISCREPANCIES NOTED
DURING CLIMB OUT, PASSING 13,000', FELT & HEARD A VIBRATION IN AIRFRAME. LEVELED OFF AT 16,000' & RAN ENG ABNORMAL VIBRATION CHKLST NAP1-15. AFTER REDUCING POWER ON LT ENG, VIBRATION DID DECREASE BUT DID NOT GO AWAY. RAN IN FLT ENG SHUTDOWN CHKLST IAW QRH. DURING POST FLT INSP, DISCOVERED LAV SERVICING CAP DISCONNECTED BUT DON'T KNOW IF THE CAUSE OR RESULT OF VIBRATION. AFTER FURTHER TROUBLE SHOOTING FOUND VIBRATION TO BE COMING FROM VCS SYSTEM. REMOVED CRACKED COMPRESSOR BELT COVER, CAUSING VIBRATION, FOR THE VCS SYS, AND INSTALLED A NEW COMPRESSOR BELT COVER IAW AMM 21-52-00. OPS CHKD GOOD, NO FURTHER DEFECTS.
BOTH OXYGEN MASKS WERE STOWED AND STARTED FLOWING OXYGEN. YOU COULD HEAR THE SOUND. WHEN DONNED, WE RECEIVED CONTINUOUS FLOW AND WAS UNABLE TO SHUT OFF. LANDED WITH OXYGEN LEVEL AT 850 PSI. *** CORRECTIVE ACTION *** REMOVED BOTH 02 MASKES FROM WEEPS AND INSPECTED FOR DEFECTS AND NONE FOUND. PUSHED IN 02 SHUT OFF VALVE ON PILOTS SIDE AND HAD 02 LEAKING FROM TEST INDICATOR ON BOTH SWEEPS. REMOVED LEAKING LH 02 MASK STOWAGE BOX P/N 1186F6-23 S/N 01033 AND INSTALLED CUSTOMER SUPPUED REPAIRED BOX P/N 1186F6-23 S/N 01232. REMOVED LEAKING RH 02 MASK STOWAGE BOX P/N 1186F6-23 S/N 00827 AND INSTALLED CUSTOMER SUPPUED REPAIRED BOX P/N 1186F6-23 S/N 01402. OPS CHECKS GOOD. WORK DONE JAW EMB SOS AMM CH 35-11-01. SERVICED 02 AS NECESSARY JAW EMB SOS AMM CH 12-16-00.
EMERGENCY LIGHTS NOT ARM YELLOW CAS: ON START UP LIGHTS WOULD FLICKER THEN THE YELLOW CASS MSG. LIGHTS WOULD GO OUT AFTER ENGINE START THEN COME BACK ON IN THE BACK WITH THE YELLOW CASS MESSAGE. GAINED ACCESS TO THE AFT AND FWD EMERGENCY BATTERIES, REMOVED AND REPLACED THE FWD AND AFT EMERGENCY BATTERIES IAW EMBS0S AMM 33-52-01, PERFORMED CHARGE AND OPERATIONAL CHECK OF THE EMERGENCY BATTERIES IAW EMB 505 AMM 33-52-01. OPS CHECK GOOD. NO FURTHER DEFECTS NOTED. REINSTALLED ALL INTERIOR ACCESS PANELS,
NONE OF THE 3 EMER LIGHTS HOUSED IN EACH OF THE 3 MAIN ENTRY DOOR STEPS OPERATE WHEN THE EMER LIGHT SWITCH IS TURNED ON. IF PRESSURE IS APPLIED BY WALKING DOWN THE STAIRS, THE LIGHTS WEAKLY FLASH ONCE. THE 2 LIGHTS IN THE MED FRAME DO WORK. THE SAME SITUATION HAPPENS WITH ACTIVATION OF EITHER OF THE 2 COURTESY LIGHT SWITCHES. // SIGNOFF// REMOVED ALL ACCESS IN THE MED AND INSPECTED WIRING,DURING INSPECTION FOUND LOOSE/BROKEN WIRE SPLICE. REMOVED FAULTY SPLICE AND INSTALLED NEW SPLICE. PERFORMED OPS CHECKS AND OPS CHECKS GOOD NO FURTHER DEFECTS NOTED ALL WORK PERFORMED IAW EMB·SOSS AMM CH ·25-33·00
CABIN EMERG LIGHT: CABIN EMERGENCY LIGHTING FLICKERING ON/OFF WITH SWITCH IN ARM. "CORRECTIVE ACTION" REMOVED AND REPLACED AFT EMERGENCY LIGHTS BATTERY, OPERATIONAL CHECK SATISFACTORY. REF EMB PHENOM 300 AMM 33-52-00. PART # OFF 6450LS-00 ON 7450LS-00 S/N OFF 001091 ON 006345
EMERGENCY LIGHTS BATTERY: IMMEDIATELY AFTER ENGINE START THE EMERGENCY LIGHTS STARTED CYCLING ON/OFF. WE TURNED THE EMER LT SWITCH TO ATM THEN OFF, BUT THE EMER LIGHTS CONTINUED TO CYCLE.//CORRECTIVE ACTION//PERFORMED FIM 4885-33-50-00--810-801-A E LIGHTS INADVERTENTLY OPERATIVE. UPON COMPLETITION ON THIS TASK EMERGENCY LIGHTS ARE WORKING AS DESIGNED NO FURTHER MAINTENANCE REQUIRED REF P300 AMM 33-52-17-440-801A
ON GEAR RETRACTION THE MLG LEVER WAS PLACED IN THE UP POSITION. RECEIVED A RED CAS MESSAGE FOR LG LEVER DISAGREE. HAD THREE RED DOWN INDICATORS. RAN THE MLG LEVER DISAGREE CHECKLIST, CYCLED THE HANDLE DOWN CAS MESSAGE CLEARED AND RETURNED FOR LANDING. REMOVED AND REPLACED THE LANDING GEAR CONTROL LEVER IAW AMM 32-31-01.
FLYING AT 40,000 FT, NOTICED YELLOW X THROUGH BOTH PITCH & SPOILER INDICATORS. NO OTHER INDICATIONS OR CAS MSGS DISPLAYED. ACFT SEEMED FINE BUT SHORTLY THEREAFTER THE AUTOPILOT WOULD NOT FOLLOW COMMANDS. TURNING AUTOPILOT OFF IT BECAME APPARENT THERE WAS A FAILURE OF PITCH CONTROL CAPABILITIES. REMOVED FAULTY FCE 2 UNIT. INSTALLED MODIFIED FEC 2 UNIT & PERFORMED OPERATIONS CHECK & SPOILER RIGGING PROCEDURE. NO CAS MESSAGES PRESENT. PITCH CONTROL OPS CHECKED GOOD. FUEL INDICATION NORMAL. ALL MX PERFORMED IAW MM TASKS 27-03-01-400-801-A & 27-60-00-820-801-A.
AFTER NORMAL GEAR RETRACTION UNUSUAL NOISE AND VIBRATIONS NOTED FROM NOSE AREA. AFTER RETURN TO AIRPORT, NOSE GEAR DOORS STILL OPEN. INSPECTED NLG FOUND NOSE GEAR DOOR TORQUE TUBE BROKEN. R & R NLG DOOR TORQUE TUBE AND TORQUE TUBE SUPPORT ASSY (LT AND RT) AMM REF 32-21-01. REPLACED, PN 01-442-04 ROD END, 5513062-1 SUPPORT ASSY-TORQUE TUBE, 5513062-1, SUPPORT ASSY-TORQUE TUBE, 5542213-16 LINKAGE ASSY-NOSE GEAR DOOR.
BRAKE LOW PRESSURE CAUTION ADVISORY LIGHT ILLUMINATED ON TAXI; PEDALS WENT TO FLOOR.
BRAKE LOW PRESSURE CAUTION ADVISORY LIGHT ILLUMINATED ON TAXI; PEDALS WENT TO FLOOR. LIGHT WENT OFF AND PRESSURE RETURNED AFTER 10 MINUTES. REMOVED AND REPLACED MOTOR AND RELAY IAW MM 32-42-06. OPS CHECK GOOD.
LEFT BRAKE PEDAL ON PILOT'S SIDE WILL NOT HOLD PRESSURE. WITH STEADY SLOW PRESSURE APPLIED, THE PEDAL GOES TO THE FLOOR.
LT BRAKE PEDAL ON PILOT'S SIDE WILL NOT HOLD PRESSURE WITH STEADY SLOW PRESSURE APPLIED, THE PEDAL GOES TO THE FLOOR. TS SYS REMOVED PILOTS LT WHEEL BRAKE MASTER CYLINDER AND INSTALLED OVERHAULED MASTER CYLINDER IAW AMM 32-42-02 REV 25. BLEED BOTH RT AND LT SYS IAW AMM 32-42-00 REV 25.
DURING CLIMB OUT AT 500 FEET, EXPERIENCED BIRD STRIKE TO LT ENGINE. CREW REPORTED A VERY LOUD BANG, FOLLOWED BY A COUPLE OF MINUTES OF SMOKE/ODOR IN CABIN.
DURING CLIMB OUT AT APPROX 500 FEET, EXPERIENCED BIRD STRIKE TO LT ENGINE. CREW REPORTED A VERY LOUD BANG, FOLLOWED BY A COUPLE OF MINUTES OF SMOKE/ODOR IN CABIN. REMOVED AND REPLACED LT ENGINE IAW MM 71-01-02. LEAK AND OPS CHECK GOOD.
LT ENGINE N2 OVER SPEED LIGHT (RED) COMES ON DURING TAKEOFF ROLL. N1 WAS SET AT 96.7 AND N2 DIGITS INDICATE 94-95 PERCENT. (M2B) UPON ARRIVAL RAN ACFT TO TAKEOFF POWER. OAT A 16 DEGREES C N1 BOTH ENGS AT 97.0, N2 LT ENG 94.4 RT 93.7. NO OVERSPEED INDICATED. RAN TO POWER (3) TIMES. ALL WORK IAW MM 77-12-00.
DURING TAXI-OUT FOR DEPARTURE, THE INITIAL BRAKE CHECK WAS GOOD. DURING ADDITIONAL BRAKING (ABOVE 12 KTS), THE BRAKES WOULD INITIALLY HOLD, THEN RELEASE & GRAB AGAIN. THIS OCCURRED DURING STRAIGHT TAXIWAY IN DRY CONDITIONS. FEELS LIKE THE ANTI-SKID IS RELEASING. PERFORMED ANTI-SKID CHECK OF LT & RT BRAKE. ALSO PERFORMED ANTI-SKID AND BRAKE RESPONSE CK. TAXIED AIRCRAFT TO TO 0-19 KTS AND APPLIED NUMEROUS BRAKE APPLICATIONS, NO DEFECTS NOTED. BRAKES WERE ALSO BLEED. ALL WORK IAW CESSNA 560XL AMM 32-40-01.
LEFT BRAKE PEDAL ON LEFT SIDE INTERMITTANTLY LOSES HYDRAULIC PRESSURE. ITEM IS UNDER INVESTIGATION.
RT MAIN LANDING GEAR LIGHT NOT ILLUMINATED WHEN GEAR CONTROL SELECTED DOWN ON APPROACH TO PHX, EMERGENCY GEAR EXTENSION SYSTEM ACTIVATED. TROUBLESHOT SYSTEM FOUND RT MLG INDICATOR BULB NOT ILLUMINATING. REMOVED AND REPLACED BULB, RETRACTED AND EXTENDED LANDING GEAR SEVERAL TIMES. PURGED LANDING GEAR HYDRAULIC SYSTEM, SERVICED NITROGEN BOTTLE AND HYDRAULIC RESERVOIR, ALL WORK DONE IAW 560 MM CHAPTER 32-30-00.
DURING INSPECTION ATTEMPT TO LUBRICATE THE LEFT ELEVATOR TRIM ACTUATOR, DETERMINED THE PART NUMBER AND GREASE ZERT LOCATION WAS THAT OF THE RIGHT SIDE PART.