N397QS

Part: DOOR — VIBRATION (ZONE 100) · airframe 15,964 hrs · 10,714 cycles

MAIN CABIN DOOR ACOUSTIC SEAL GENERATES LOUD, HARMONIC VIBRATION WHEN DOOR IS OPERATED --PARTICULARLY WHEN IT IS BEING OPENED. THE DOOR JETTISONED OUTWARD UNDER CABIN PRESSURE. ALSO ACCOMPANIED BY CABIN VERTICAL SPEED RATES EXCEEDING 3000 FT./MIN. PRESSURIZATION CONTROL IN MANUAL MODE WITH KNOB AT MAX RATE. SWITCHED TO AUTO MODE AND ADJUSTED RATE TO MIDDLE OF RATE CLIMB AND RAN SYSTEM. SYSTEM OPERATES NORMALLY IAW MM 21-30-00. RAN AIRCRAFT WITH PRESSURIZATION IN AUTO MODE WITH NO NOISE NOTED. PILOTS CHECKLIST HAS WARNING STATEMENT THAT APU BLEED AIR SHOULD BE TURNED OFF OR A COCKPIT SIDE WINDOW OPENED PRIOR TO OPENING THE CABIN DOOR. VIBRATION WAS COMING FROM THE CABIN VENT DOOR NOT THE ACOUSTIC SEAL.

Part: ELEC CONNECTOR — DAMAGED (ZONE 200) · airframe 15,958 hrs · 10,711 cycles

DURING PREFLIGHT IT WAS DISCOVERED THAT THE EMERGENCY LIGHTING SYSTEM IS INOPERATIVE. CORRECTIVE ACTION: DURING INITIAL INSPECTION AND OPERATION OF THE EMERGENCY LIGHT SYSTEM THE ONLY EMERGENCY LIGHT! INOP FOUND WAS THE CABIN DOORSTEP LIGHT (EXTERIOR AT MAIN ENTRANCE DOOR RD FR00S). WE WORKED TO REMOVE THE LIGHT AND FOUND THAT THE CONNECTOR SOCKET (RD P3) WAS PULLED FROM THE CONNECTOR AND NEEDS TO BE REPLACED. REF ITEM 2.5 FOR REPLACEMENT. ALL WORK PERFORMED REF CE680 AMM 33-50-00, WOM 33-50-01 AND SB680-33-03

Part: LIGHT — DIM (ZONE 200) · airframe 15,746 hrs · 10,561 cycles

EXTERIOR EMERGENCY EXIT LIGHT NEAR MAIN CABIN DOOR VERY DIM. ALSO DIM WHEN BEING USED AS PAX SAFETY LIGHT.

Part: SKIN — CORRODED (ZONE 300) · airframe 15,101 hrs · 10,100 cycles

REMOVED 2 AREAS OF CORROSION ON TOP SIDE OF LH HORIZONTAL STAB UPPER SKIN, PERFORMED NDT AND REPORTED FOR REPAIR DISPOSITION. CLEANED, TREATED, PRIMED AND TOPCATED REPAIR AREAS IAW NETJETS REQUEST FOR TECHNICAL SERVICES RFTS-111665 REV. 0.

Part: SKIN — CORRODED (ZONE 500) · airframe 15,101 hrs · 10,100 cycles

REMOVED CORROSION ON THE WING SKINS AT THE FOUR AILERON SECTOR BUTTON PLUGS LH AND RH WING LOWER SURFACE, PERFORMED NDT AND REPORTED FOR REPAIR DISPOSITION. CLEANED, TREATED, PRIMED AND TOPCATED REPAIR AREAS IAW NETJETS REQUEST FOR TECHNICAL SERVICES RTS-111662 REV. 0

Part: LIGHT — DIM (ZONE 200) · airframe 15,089 hrs · 10,086 cycles

CABIN DOOR EMERGENCY EXIT LIGHT DIM

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,676 hrs · 9,809 cycles

SPADE DOOR SEPARATED FROM ATTACH RODS PASSING 2,500 FEET ON DEPARTURE. MAINTAINED 140KTS TO REDUCE VIBRATIONS ON THE RETURN. REMOVED AND REPLACE PUSHROD. ACCOMPLISHED THE SPADE DOOR REPAIRS AND SYSTEM CHECKS. NO DEFECTS FOUND. IAW CE680 52-10-60, 52-10-40, 21-30-00 & PER AQRD RFTS-109590 REV.0

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,531 hrs · 9,707 cycles

REPAIRED CORRODED AREAS OF THE VERTICAL STABILIZER AFT SPAR CAPS BY MECHANICALLY BLENDING PERFORMING NDT AND REPORTING FOR REPAIR DISPOSITION. CLEANED TREATED AND PRIMED AREAS FOUND ACCEPTABLE AND TRIMMED THE LH SKIN BOND ASSEMBLY, FABRICATED AND INSTALLING REPAIR DOUBLERS IN ACCORDANCE WITH TEXTRON FIELD REPAIR.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,531 hrs · 9,707 cycles

REPAIRED CORRODED AREAS OF THE UPPER INBOARD SKINS OF THE LH & RH WINGS ALONG AND UNDERNEATH THE DRAG ANGLES (WING-TO-FUSELAGE FAIRING ATTACH ANGLES) BY R&R THE DRAG ANGLES, BLENDING CORRODED AREAS, PERFORMING NDT AND REPORTING RESULTS FOR REPAIR DISPOSITION. CLEANED, TREATED, AND PRIMED BLENDED AREAS FOUND ACCEPTABLE AND FABRICATED AND INSTALLED REPAIR DOUBLER TO LH WING AS REQUIRED PER TEXTRON FIELD REPAIR.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,531 hrs · 9,707 cycles

BLENDED SEVERAL CORRODED AREAS ON LH AND RH WING UPPER SKINS AT THE AT THE AILERON BELLCRANK ACCESS BUTTON PLUGS, PERFORMED NDT AND REPORTED RESULTS FOR REPAIR DISPOSITION. TREATED, PRIMED, AND TOP COATED REPAIR AREAS PER TEXTRON REPAIR MEMO.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,531 hrs · 9,707 cycles

BLENDED SEVERAL CORRODED AREAS ON THE RH SIDE OF THE VERTICAL STABILIZER JUST UNDER THE TIP CAP, PERFORMED NDT AND REPORTED RESULTS FOR REPAIR DISPOSITION. TREATED, PRIMED, AND TOP COATED REPAIR AREAS PER TEXTRON FIELD REPAIR.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,531 hrs · 9,707 cycles

BLENDED SEVERAL CORRODED AREAS ON THE LOWER SKIN TRAILING EDGE OF THE RH HORIZONTAL STABILIZER, PERFORMED NDT AND REPORTED RESULTS FOR REPAIR DISPOSITION. TREATED, PRIMED, AND TOP COATED REPAIR AREAS PER TEXTRON REPAIR MEMO.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 14,531 hrs · 9,707 cycles

BLENDED CORRODED AREAS LOCATED ON THE UPPER AND LOWER SKINS OF THE LH & RH HORIZONTAL STABILIZERS LOCATED NEAR THE HORIZONTAL STABILIZER “PIE FAIRINGS” (ACCESS PANELS 351AC AND 352AC), PERFORMED NDT AND REPORTED RESULTS FOR REPAIR DISPOSITION. TREATED, PRIMED, AND TOP COATED REPAIR AREAS PER TEXTRON REPAIR MEMO.

Part: SPAR — CORRODED (ZONE 700) · airframe 14,238 hrs · 9,535 cycles

CORROSION - EXFOLIATION FOUND ON THE WING AFT SPAR IN THE LH AND RH MLG WHEEL WELLS

Part: FUSE — FAILED (EMERGENCY LIGHTS) · airframe 13,963 hrs · 9,360 cycles

CABIN EMERG LIGHT: FOLLOWING POWER ON CHECLIST , STEP 5 EMER LTS - ARM, NONE OF THE EMERGENCY LIGHTS COME ON. THEY DO TURN ON WITH SWITCH IN ON POSSITION (YES, MAIN BATTERIES ARE OFF DURING TEST). THIS IS POSSIBLE INDICATION A RELAY IS STUCK OR BURNED OUT BACK IN J-BOX. NSTALLED NEW CUSTOMER SUPPLIED FUSE P/N: S2565-5. PERFOMRED OPS CHECK IN REF WITH CE 680 AMM 33-50-00. NO FAULTS FOUND. RETURNED AIRCRAFT TO INITIAL CONDITION.

Part: NONE — NONE · airframe 13,897 hrs · 9,313 cycles

CABIN EMERG LIGHT: EMERGENCY LIGHTS DO NOT COME ON WITH THE PAX SAFETY ON OR WITH THE EMERGENCY LIGHTS IN ARM POSITION WITH NO DC POWER APPLIED. WITH THE EMERGENCY LIGHTS IN THE ON POSITION, ALL EMERGENCY LIGHTS ILLUMINATE EXCEPT FOR THE GALLEY READING LIGHT AND THE MAIN CABIN DOOR EXIT SIGN AND PLACARDS. // SIGNOFF// FOUND WIRE DAMAGED NEAR CONNECTOR (J1087V). REPAIRED WIRE REF. CE-680 IMM 25-91-04. EMERGENCY LIGHTS OPS CHECK GOOD REF. CE-680 M/M 33-50-00

Part: NONE — NONE · airframe 13,870 hrs · 9,286 cycles

EMERGENCY LIGHTING: WHEN BATTERY SWITCHES ARE OFF AND EMER LIGHT SWITCH IS ON, THE GALLEY LIGHT, THE LIGHT BETWEEN SEATS 1 AND 3, LIGHT BETWEEN SESTS 5 AND 7, AISLE LIGHTS, LEFT EGRESS LIGHT AND MAIN CABIN DOOR EXIT SIGN ARE ALL INOP. THEN: WHEN BATTERIES ARE ON, EMER LIGHTS IN ARM AND PAX SAFETY SWITCH ON....ONLY THE NO SMOKING LIGHT ILLUMINATES. ALL OTHER REQUIRED LIGHTS ARE INOP.

Part: WIRE — DAMAGED (DC SYSTEM) · airframe 13,549 hrs · 9,054 cycles

DC EMER BUS R AMBER CAS: IN FLIGHT DC EMER BUS R DC GEN OFF R DU 4 OFF DU 3 RED X'S FMS 2 INITIALLY TRIED TO USE DC GEN OFF R QRH THE BUS TIE WOULD NOT CLOSE. CHECKED RH ENGINE GENERATOR WIRES AND FOUND HIGH RESISTANCE GROUND COMING FROM ONE OF THE WIRES ON TERMINAL E ON RH ENGINE STARTER GOING TO RH GCU. INSPECTED WIRE AND FOUND TERMINAL ON WIRE NOT CRIMPED CORRECTLY AND COUSING HIGH RESISTANCE GROUND. REMOVED WIRE TERMINAL AND CRIMPED A NEW TERMINAL, CHECK GROUND AT RH GCU AND NOW GETTING A GOOD GROUND. RECONNECTED WIRES BACK ON RH GENERATOR TERMINAL E, POWER AIRCRAFT AND PERFORMED SATISFACTORY START OF RH ENGINE, STARTED LH ENGINE AND NO DC EMER BUS R AMBER CAS NOTED BOTH GENERATORS CAME ON UNE AND DO DU FAULTS. ALL CH ECKES OK I/ A/ CE-680 WIRING 24-30-02. AMM 24-31-00,24-30-00 AND 24·60-10.

Part: CONTROL VALVE — DEFECTIVE (COCKPIT) · airframe 12,509 hrs · 8,320 cycles

COCKPIT ODOR: DESCENDING THROUGH 5000 FEET WITH THE APU OFF, WE STARTED TO FEEL LIKE BURNED OIL ODOR IN THE COCKPIT, NO SMOKE ASSOCIATED WITH IT. SIGNOFF. INSPECTED SYSTEM AND FOUND TEMP CONTROLLER VALVE VT009 STICKING. FOUND WATER SERPERATOR CONDENSER SOCK VERY DIRTY. NO OIL RESIDUE FOUND IN WATER SEPERATOR DUCT. REMOVED FAILED VT009 VALVE AND ISTALLED AN OVERHAULED VALVE. PERFORMED NJA TC-680-21-1209OSM. ALL OPS CHECK AND LEAK CHECKS GOOD. NO ODOR OR OTHER DISCREPANCIES NOTED WORK PERFORMED IAW CE-680 AMM 21-22-05 AND 21-21-03

Part: SPRING — DEFECTIVE (COUNTER BALANCE) · airframe 12,260 hrs · 8,168 cycles

TECH HEARD NOISE WHEN HE OPENED MED, NOTICED COUNTER BALANCE CABLE LOOSE. REMOVED AND REPLACED MED AFT COUNTERBALANCE SPRING P/N: S3194-6, IAW CE680 AMM, 52-10-20. NO DEFECTS NOTED.

Part: SPAR — CORRODED (VERTICAL STAB) · airframe 11,906 hrs · 10,522 cycles

BLENDED AREA OF CORROSION ON RT SIDE OF VERTICAL STABILIZER AFT SPAR AT VFS 118.79. PERFORMED NDT AND REPORTED FOR REPAIR DISPOSITION. CLEANED AND TREATED BLENDED AREA THEN PRIMED, APPLIED TOP COAT, AND CORROSION INHIBITING COMPOUND PER TEXTRON FIELD REPAIR.

Part: SQUAT SWITCH — DEFECTIVE (NLG) · airframe 11,653 hrs · 7,778 cycles

LANDING GEAR HANDLE STUCK - REPEAT WRITE-UP: GEAR HANDLE WOULD NOT MOVE TO THE UP POSITION AFTER TAKEOFF. GEAR REMAINED DOWN AND LOCKED (3 GREEN) WOW MISCOMPARE AMBER CAS ILLUMINATED. ///SIGN-OFF///REMOVED DEFECTIVE NLG SQUAT SWITCH ASSY PN: 6948001-2 AND REPLACED WITH NEW COSTUMER SUPPLIED PN: 6948001-2 SWITCH IAW CE-680 AMM CHAPTER 32·6~00.

Part: SPAR — CORRODED (VERTICAL STAB) · airframe 11,535 hrs · 7,698 cycles

6 SPOTS OF CORROSION ON THE VERTICAL STAB AFT SPAR.

Part: DOUBLER — CHAFED (FUSELAGE) · airframe 10,715 hrs · 7,124 cycles

GOUGES, AFT CABIN ESCAPE HATCH SURROUND, 6911166-2, DOUBLER AND 6911121-5 UPPER FRAME SEGMENT, MULTIPLE LOCATIONS. ACCOMPLISHED FIELD REPAIR FR-680-0144-5312, REV- , FAA FORM 8100-9 DATED 3/8/2019; FIELD REPAIR- GOUGES, AFT CABIN ESCAPE HATCH SURROUND, 6911166-2, DOUBLER AND 6911121-5 UPPER FRAME SEGMENT, MULTIPLE LOCATIONS.

Part: GUSSET — CHAFED (FUSELAGE) · airframe 10,715 hrs · 7,124 cycles

LEFT AND RIGHT GUSSETS ABOVE COCKPIT SIDE WINDOW DAMAGE (CHAFE MARKS). ACCOMPLISHED LETTER DQ18665M1 DATED MARCH 6, 2019; 680-0144 LEFT AND RIGHT GUSSETS ABOVE COCKPIT SIDE WINDOW DAMAGE (CHAFE MARKS).

Part: SPAR CAP — CORRODED (RT WING) · airframe 10,715 hrs · 7,124 cycles

CORROSION, RT WING, SPAR CAP AND WEB, BETWEEN WS 37 AND WS 52. ACCOMPLISHED ENGINEERING FIELD REPAIR FR-680-0144-5291 REV- FAA FORM 8100-9 DATED 3/01/2019; FIELD REPAIR - CORROSION, RT WING, SPAR CAP AND WEB, BETWEEN WS 37 AND WS 52.

Part: TRUSS FITTING — CORRODED (APU) · airframe 10,718 hrs · 7,124 cycles

APU TRUSS MOUNT (FLANGE) CORROSION. ACCOMPLISHED ENGINEERING LETTER DQ18604M1 DATED FEB. 26, 2019; 680-0144 (N397QS) APU TRUSS MOUNT (FLANGE) CORROSION.

Part: SQUAT SWITCH — OUT OF RIG (NLG) · airframe 10,359 hrs · 6,881 cycles

ALL LANDING GEAR RETRACTION DID NOT RETRACT - AFTER LIFTOFF GEAR HANDLE MOVED TO RETRACT POSITION. GEAR DID NOT RETRACT. INDICATORS HAD 3 GREEN AND ONE RED UNLOCK LIGHT ILLUMINATED AT SAME TIME. AMBER WOW MISCOMPARE CAS ILLUMINATED. SUPPLEMENTAL INFORMATION : RIGGED NLG SQUAT SWITCH IAW AMM 32-60-00

Part: CHANNEL — CORRODED (NLG WW) · airframe 10,320 hrs · 6,851 cycles

REPAIRED CORRODED AREA ON THE NOSE WHEEL WELL FORWARD CHANNEL P/N 6731051-57 LOWER FLANGE, JUST FORWARD OF THE NLG UPLOCK, BY BLENDING, PERFORMING EDDY CURRENT AND ULTRASONIC THICKNESS INSPECTIONS, CLEANING, TREATING, AND PRIMING PER REPAIR MEMO.

Part: ANGLE — CORRODED (LT WING) · airframe 10,320 hrs · 6,851 cycles

FOUND THE LT WING AFT SPAR LOWER CAP FORWARD ANGLE CORRODED AT WS 30.36 AND WS 41.54, AND CENTER SPAR WEB CORRODED JUST IB OF THE TRUNNION SUPPORT AT WS 56.36. REPAIRED THE LT WING REAR SPAR LOWER CAP FORWARD ANGLE AT WS 30.36 (SITE L134), AND WS 41.54 (SITE L151), AND REPAIRED THE CENTER SPAR WEB JUST INBOARD OF THE TRUNNION SUPPORT AT WS 56.36 BY BLENDING, PERFORMING ULTRASONIC AND EDDY CURRENT INSPECTIONS, REMOVING HI-LOKS AS REQUIRED AT REPAIR SITES L134 AND L151 AND PERFORMING BOLT HOLE EDDY CURRENT INSPECTIONS, TREATING AND PRIMING REPAIR AREAS IAW FIELD REPAIR FR-680-0144-4584 REV.

Part: SKIN — CORRODED (RT WING) · airframe 10,130 hrs · 6,709 cycles

CORROSION FOUND ON THE OUTBOARD EDGE AND UNDERNEATH THE RT WING UPPER AFT DRAG ANGLE, WING TO FUSELAGE FAIRING. BLENDED THE CORROSION, PERFORMED AN EDDY CURRENT AND ULTRASONIC INSPECTIONS AND SUBMITTED FOR DISPOSITION. REPLACED THE BLENDED FASTENERS AS REQUIRED, ALODINED AND PRIMED AREA IAW ENGINEERING ORDER. REPAIRED CORROSION LOCATED ON WING SKIN BOND ASSEMBLY ON THE RT WING AT JUNCTION OF AFT END OF FWD UPPER DRAG ANGLE AND FWD END OF MIDDLE UPPER DRAG ANGLE IAW ENGINEERING MEMO.

Part: SKIN — CORRODED (FUSELAGE) · airframe 10,130 hrs · 6,709 cycles

REMOVED AIRCRAFT DATA TAG AND MECHANICALLY BLENDED CORROSION ON AIRCRAFT SKIN. PERFORMED EDDY CURRENT AND ULTRASONIC INSPECTIONS AND REPORTED RESULTS TO ENGINEERING FOR DISPOSITION. REPAIRED CORROSION BLENDS FOUND UNDERNEATH IAWMEMO BY TREATING AND PRIMING THE BLENDED AREAS. REINSTALLED AIRCRAFT DATA TAG.

Part: SKIN — CORRODED · airframe 10,130 hrs · 6,709 cycles

REMOVED AIRCRAFT DATA TAG AND MECHANICALLY BLENDED CORROSION ON AIRCRAFT SKIN. PERFORMED EDDY CURRENT AND ULTRASONIC INSPECTIONS AND REPORTED RESULTS TO ENGINEERING FOR DISPOSITION. REPAIRED CORROSION BLENDS FOUND UNDERNEATH IAW MEMO BY TREATING AND PRIMING THE BLENDED AREAS. REINSTALLED AIRCRAFT DATA TAG.

Part: BRAKE ASSY — DIRTY (MLG) · airframe 6,379 hrs · 4,237 cycles

AFTER A LANDING CYCLE, BRAKES SHUDDER & GRAB WHEN STOPPING ACFT. THIS OCCURS UNDER 3 KTS TO PARK. ACCOMPLISHED BRAKE BLEEDING PROCEDURE IAW MM 32-42-10. CLEANED ALL BRAKE ASSEMBLIES, PERFORMED HIGH SPEED TAXI WITH SEVERAL STOPS. NO DEFECTS NOTED AT THIS TIME. ACFT OK FOR CONTINUED SERVICE.

Part: WARNING SYSTEM — ACTIVATED (COCKPIT) · airframe 5,947 hrs · 3,956 cycles

AFTER TAKEOFF NOSE GEAR RED LIGHT REMAINED ILLUMINATED.

Part: ACM — FAILED · airframe 5,483 hrs · 3,663 cycles

WITH ENGINES AND APU RUNNING, AFTER START UP COULD NOT GET TEMPERATURE UNDER CONTROL. WENT TO MANUAL AND STILL COULDN'T CONTROL IT. HAD A STRONG BURNING ELECTRICAL ODOR AND SMOKE THROUGHOUT CABIN AND IN HELL HOLE. R & R THE ACM IAW MM 4-04. ACM OPS & LEAK CHECKED GOOD.

Part: LANDING GEAR — MALFUNCTIONED · airframe 5,479 hrs · 3,660 cycles

AFTER TAKEOFF, THE GEAR HANDLE WOULD NOT COME UP.

Part: TUBE — CRACKED (APU COMPARTMENT) · airframe 5,336 hrs

DURING A SCHEDULED INSPECTION, FOUND THIS TUBE ASSEMBLY, CRACKED 50 PERCENT AROUND THE FIREWALL BULKHEAD ATTACH FLANGE. CRACK WAS FOUND RIGHT ON THE EDGE OF THE WELD BEAD. THIS WAS REPLACED WITH A NEW TUBE. AN SCR HAS BEEN SUBMITTED UNDER SCR REPORT 659412.

Part: COALESCER BAG — ODOR · airframe 4,833 hrs · 3,246 cycles

AFTER TAKEOFF, AT ALTITTUDE OF 20,000 MSL BOTH PILOTS OBSERVED SMOKE & FUMES IN THE ACFT. BOTH BLEEDS WERE TURNED OFF AND SMOKE SUBSIDED, AFTER LANDING ACFT TOWED, AIRCRAFT ENGINE RUN UP WITH LEFT BLEED OFF ALLOWED AIRCRAFT TO FILL UP WITH SMOKE/ FUMES AGAIN RUNNING APU WITH ENGINE SHUTDOWN AND BLEED AIR SELECTED. ALSO, CAUSED SMOKE/FUMES IN ACFT UPON ENGINE SHUTDOWN RT ENG AMBER CAS OIL LEVEL LOW LIGHT IS ILLUMINATED. HALF QT OF 2380 WAS ADDED ON 10/13/12 TO EACH ENG BECAUSE OF THE SAME CAS MESSAGE. RAN APU, LEFT AND RIGHT ENGINES INDEPENDENTLY. BOTH ENGINES WERE OPERATD AT TAKEOFF POWER FOR 3 MINUTES AND CRUISE FOR ANOTHER 3 MINUTES. ALL BLEED AIR SOURCES TRIED IN ALL CONFIGURATIONS. NO CHEMICAL ORDER OR UNUSUAL ODOR NOTED. PER REQUEST PERFORMED ENVIRONMENTAL CONTROL SYSTEM DUCT BURN OUT PROCEDURE IAW FORM TC-680-21-120905M. NO DEFECTS NOTED, COALESCER SOCK WAS REPLACED WITH NEW DURING DUCT BURN OUT PROCEDURE.

Part: WHEEL — WORN (NLG) · airframe 3,591 hrs · 2,424 cycles

ABNORMAL GEAR RETRACTION, GEAR UNSAFE LIGHT REMAINED ON FOR APPROX 7-10 SECONDS AFTER ALL GEAR INDICATED UP. HEARD NOSE WHEEL SPINNING ABNORMALLY LONG IN NOSE COMPARTMENT. GEAR EXTENDED NORMALLY, NOSE WHEEL MADE ABNORMAL NOISE UPON ROLLOUT. FOUND LOWER TORQUE LINKS BUSHINGS & HARDWARE LOOSE. REPLACED NLG WHEEL ASSY'S IAW MM 32-20-00. NLG ACTUATOR AFT ATTACHMENT HARDWARE FOUND LOOSE. REPLACED NLG HARDWARE ELASTOMERIC BEARINGS IAW MM 21-30-30. NOSE WHEEL BEARINGS 32-41-10. LANDING GEAR OPS CHECKED & FOUND SERVICEABLE IAW MM 32-41-10. NOSE GEAR SHOCK STRUT SERVICED IAW MM 32-20-00-600. NO FAULT FOUND WITH STRUT.

Part: CONNECTOR — DAMAGED (RT WING)

DURING FUEL TANK INSPECTIONS, FINDING ELECTRICAL BLANKING PINS IN WING ROOT OF FUEL TANKS. PINS FALLING OUT OF PLUGS PREVIOUSLY INSTALLED DURING ACFT MFG.

Part: STRUT — DISCHARGED (NLG) · airframe 1,702 hrs · 1,169 cycles

DURING GEAR RETRACTION, NUMEROUS LOUD BANGING NOISES WERE HEARD FROM THE NOSE GEAR. SOUND AND BUMPS FELT IN THE FLOOR CONTINUED FOR 5 -10 SEC UNTIL THE NOSE GEAR COMPLETELY RETRACTED. THE "UNLOCK" LIGHT STAYED ILLUMINATED CONTINUOULY DURING THE MALFUNCTION AND EXTINGUISHED WITH GEAR FULLY RETRACTED. GEAR EXTENTION AND LANDING WERE NORMAL. FOUND NOSE GEAR UPLOCK AND DOOR ROLLERS DRY AND STIFF. FOUND NOSE STRUT LWR N2 CHAMBER 10 PSI LOW. LUBRICATED ROLLERS AND SERVICED STRUT AS REQUIRED. PERFORMED 10 GEAR SWINGS WITHOUT DUPLICATING DISCREPANCY, OPS CHECK GOOD. REF MM 32-20-00 REV. 7, 32-00-00 REV 16 AND 12-14-00 REV 16