N398QS
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
UPON DESCENT INTO KILM THE EMERGENCY LIGHTS STARTED TO FLICKER. AFTER LANDING, SHUT THE BATTERIES OFF, AND UNPLUGGED THE MAIN BATTERY TO POSSIBLY DO A RESET. AFTER TURNING THE BATTERIES AND THE EMER LIGHTS BACK ON, THEY CONTINUED TO FLICKER. INTERIOR AS WELL AS EXTERIOR OVER THE WING LIGHTS EMER LIGHTS. REMOVED FAULTY AFT EMERGENCY BATTERY AND REPLACED WITH A NEW UNIT. REPLACED FORWARD EMERGENEY BATTERY AS ADVISED BY MCC FOR BATTERY TRACKING AS A PAIR. FORWARD BATTERY WAS REPLACED WITH REPAIRED UNIT. PERFORMED 90 MINUTE CHARGE ON BATTERIES. PERFORMED OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM. OPS CHECK GOOD. ALL ACCESS WAS CLOSED. WORK COMPLETED IAW AMM 33-52-01
ON DEPARTURE CABIN EMER LIGHTS BEGAN FLASHING. UPON ARRIVAL INTO DAL, WHEN EMER LIGHTS SELECTED TO ARM, LIGHTS IN CABIN WERE ON CONTINUOSLY. REPLACED #2 EMERGENCY LIGHT BATTERY IAW AMM 33-52-01. OPS CHECK GOOD.
DURING INITIAL CLIMB OUT FROM KBFI, NLG FAILED TO RETRACT. QRH PROCEDURE WAS RUN AND UNSUCCESSFUL AT RETRACTING NLG. PRECAUTIONARY LANDING WAS COMPLETED BACK TO KBFI. PREEPED AIRCRAFT FOR JACKING UP THE AIRCARFT AND CONNECTING THE ROBOMULE. JACKED UP THE ACFT & PERFORMED GEAR SWINGS. DURING 1ST SWING, NOTICED NLG DOORS WERE NOT CLOSING. EXTENDED GEAR & NOTICED NLG WAS NOT FULLY EXTENDED. PULLED ON WHEEL OF THE NLG AND IT EXTENDED. PERFORMED A SERVICE OF NLG STRUT & PERFORMED MULTIPLE GEAR SWING CHECKS WITH NO DISCREPANCIES. PERFORMED THE NLG STRUT SERVICE. PERFORMED MULTIPLE FUNCTIONAL CHECKS OF THE EXTENSION & RETRACTION SYSTEM WITH NO DISCREPANCIES. WORK PERFORMED IAW AMM SECTIONS 12-14-03 AND 32-31-00.
IMMEDIATELY AFTER TAKEOFF HEAVY, BURNING PLASTIC, SMELL IN COCKPIT AND CABIN FOR APPROXIMATELY 15 MINUTES SOMETIMES LONGER. BELIEVE THIS IS ASSOCIATED WITH ENGINE #1 STARTING ISSUES. //SIGNOFF// PERFORMED PHENOM 300 FIM TASK 21·20·00·810â¢801-A AFTER REPLACING THE LGNITERS ON THE L/H ENGINE. COULD NOT DUPLICATE.
EMERGENCY LIGHTING: AFTER SHUTDOWN FLOW, INTERIOR AND EXTERIOR EMERGENCY LIGHTS REMAINED ON WITH THE SWITCH IN THE OFF POSITION. //SIGNOFF// REMOVED FAULTY LIGHTING SYSTEM COCKPIT PANEL AND REPLACED WORN REPAIRED COCKPIT LIGHTING PANEL REF. EMB505 33-01-01
CABIN EMERG LIGHT: AT CRUISE THE EMER LIGHTS STARTER FLASHING WITH THE SWITCH IN THE ARM POSITION. REMOVED INOP #1 EMERGENCY BATTERY PN 7450LS-00 SN 006774 INSTALLED CUSTOMER SUPPLIED MODIFIED EBS FINAL ASSY PN 7450LS-00 SN 001730M CHARGED BATTERY FOR 90 MINS PERFORMED OPS CHECK OPS CHECK GOOD NO DEFECTS NOTED AT THIS POINT. RESTORED ALL ACCESS. ALL WORK DONE IN REF EMB505 AMM 33-52-01
MAIN EXIT SIGN/LIGHT: LOWER EXIT LIGHT NEAR MAIN CABIN DOOR INOP. FOUND EXIT SIGN LIGHT ELECTRICAL CONNECTION DISENGAGED. CONNECTED EXIT SIGN LIGHT IAW EMB PHENOM 300 AMM 33-52-13. OPERATIONAL CHECK SATISFACTORY.
CABIN EMERG LIGHT: DURING FLIGHT WITH THE EMER LT SWITCH SET TO ARM, CABIN EMERGENCY LIGHTS WERE ILLUMINATED AND FLASHING INTERMITTENTLY DURING INITIAL CLIMB UNTIL AIRCRAFT WAS SHUTDOWN. REMOVED FAULTY #1 EMERGENCY BATTERY PN: 6450LS-00 SN: 002608 AND INSTALLED NEW EMERGENCY BATTERY PN: 7450LS-00 SN: 006774 IAW PHENOM 300 MM 33-52-01. PERFORMED THE OPERATIONAL TEST OF THE EMERGENCY BATTERY IAW PHENOM MM 33-52-01, WITH NO DEFECTS NOTED. BOTH THE #1 AND #2 EMERGENCY BATTERIES ARE PN: 7450LS-00. CLOSED ALL ACCESS AS REQUIRED.
SHORTLY AFTER LEVELING OFF AT FL410, PASSENGERS NOTICED A BURNT SMELL IN THE BACK. THE SMELL DISSIPATED WITHIN FIVE MINUTES, AND NO SMOKE WAS OBSERVED. SHORTLY AFTER, THE PASSENGER SAID THE WI-FI WAS INOP. I CYCLED THE IFE SWITCH TWICE AND THE WI-FI NEVER CAME BACK. REMOVED UCS 5000 AND INSPECTED, NOTED ELECTRICAL SMELL COMING FROM LOWER LNBD SECTION OF THE UNIT. NOTED BLACK GOOEY SUBSTANCE COMING FROM ELECTRICAL COMPONENT INSIDE UCS 5000 VISIBLE FROM THE LOWER VENT HOLES. MCC REQUESTED TO RUN AIRCRAFT & RAN VCS TO VERIFY NO SMELL COMING FROM GASPERS WITH VCS RUNNING. RAN LH AND RH ENGINES, ENGAGED VCS. RAN VCS SYSTEM FOR APPROXIMATELY 15 MINUTES WITH NO DEFECTS NOTED. INSTALLED AFT LAV CLOSEOUT PANELS.
MAIN DOOR: WHEN DOOR IS OPENED IT DOES NOT SELF BRAKE . DOOR FALLS STRAIGHT TO STOPPING POINT AND BOUNCES TO REST // SIGNOFF//REMOVED MAIN DOOR LINING AND REMOVED MAIN DOOR SHROUD TO GAIN ACCESS TO MAIN DOOR SPEED ADJUSTMENT. CLOSED MAIN DOOR INSTALLED LOCKING PIN TO TORSION BAR. REMOVED THREADED SLEEVES WITH BALANCE CABLE FROM THREADED CABLE END. REMOVED BALANCE DRUM AND ADJUSTED TO SPLINED SHAFT. RE-INSTALLED BALANCE DRUM TO SPLINE SHAFT. RE-INSTALLED THREADED SLEEVE TO THREADED CABLE END AND SAFETIED. REMOVED LOCKING PIN FROM TORSION BAR, OPENED MAIN DOOR. RE-INSTALLED MAIN DOOR LINING AND SHROUD. OPS CHECKED MAIN DOOR FOR OPENING SPEED. OPS CHECK GOOD. ALL WORK DONE IAW EMB-505S MM 52-10-00
MAIN DOOR HANDLE: MAIN DOOR HANDLE BROKE OFF COMPLETELY. CAN NOT SHUT DOOR OR LOCK DOOR FROM OUTSIDE.
SPEED BRAKE INDICATION: ON APPROACH WHEN ATTEMPTING TO DEPLOY SPEED BRAKE, SPOILER FAULT CASS ILLUMINATED, FOLLOWED BY GROUND SPOILER FAIL YELLOW CASS. SPEED BRAKES DID NOT FUNCTION. // SIGNOFF// SENT CMC FILES TO THE CONTACT CENTER PRIOR TO ARRIVING AT AIRCRAFT. STARTED RH AND LH ENGINES PER PHENOM 300 AFM. OPEN CMC MAINTENANCE PAGE AND NOTED LH SURFACE POSITION LVDT READ 0.5 DEGREE AT STOWED POSITION. LH PCU LVDT READ -0.01 DEGREES AT STOWED POSITION, THESE VALUES WERE NOTED TO BE WITHIN PARAMETERS 0+/-1 AT STOW. PERFORMED MULTIFUNCTION SPOILER SYSTEM FUNCTIONAL CHECK 27-60-00, NOTED THAT THE LH SURFACE POSITION LVDT READ 33.89 AT FULL DEPLOY AND LH PCU LVDT 35.45 AT FULL DEPLOY, THESE VALUES WERE NOTED TO BE WITHIN PARAMETERS 35+/-2 AT DEPLOY. SHUT DOWN AIRCRAFT PER PHENOM 300 AFM. LH OUTBOARD SPOILER MEASURED 0 DEGREES AT FULL STOWED AND MEASURED 34.2 DEGREES AT FULL MANUALLY DEPLOYED. POSITIONED AIRCRAFT INSIDE HANGAR TO PERFORM FURTHER MAINTENANCE. GAINED ACCESS TO LH SURFACE POSITION LVDT. PERFORMED GVI OF LH SURFACE POSITION LVDT PER SL505-27-0002-REV.01 BY EMBRAER RECOMMENDATION. NO OBVIOUS DEFECTS NOTED. CONTACTED MCC WITH FINDINGS AND WAS ADVISED TO REPLACE THE LH LVDT SINCE THERE IS ONE ON HAND. REMOVED SUSPECTED FAULTY LH SURFACE POSITION LVDT P/N 456897-1001 S/N 425904 IAW EMB505 MM 27-66-02. NO DEFECTS NOTED ON LOWER SUPPORTING STRUCTURE OR UPPER ATTACH FITTINGS. INSTALLED NEW LH LVDT P/N 456897-1001 S/N 491192 USING NEW HARDWARE IAW EMBS0S MM 27-66-02. REPOSITIONED AIRCRAFT OUTSIDE TO PERFORM ENGINE RUNS. PERFORMED MULTIFUNCTION SPOILER SYSTEM ELECTRONIC RIGGING 27-60-00-820-801-A. STARTED RH AND LH ENGINES IAW PHENOM 300 AFM. PERFORMED MULTIFUNCTION SPOILER SYSTEM OPERATIONAL CHECK 27-60-00-710-801-A. ACCESSED CMC MAINTENANCE PAGE, RH & LH SURFACE SPOILER SENSORS READ WITHIN THE LIMITS OF 0 +1 -1 & 35 +2 -2 IAW MULTIFUNCTION SPOILER SYSTEM FUNCTIONAL CHECK 27-60-00. ALL ELECTRONIC RIGGING AND OPERATIONAL CHECKS GOOD. SHUT DOWN ENGINES IAW PHENOM 300 AFM. PERFORMED FINAL ENGINE OIL SERVICE CHECK AS REQUIRED.
DURING ACCOMPLISHMENT OF EMBRAER SB 505-55-0004 REV 01 (DATED 06/24/2020), WE NOTED THE FOLLOWING MASS BALANCE WEIGHTS BELOW TOLERANCE AT LT ELEVATOR: ADJUSTABLE WEIGHTS PART NUMBER PE915109-L33 (10 EACH BELOW MINIMUM OF 84G); HORN MASS WEIGHT PART NUMBER PE915109-L42 (1 EACH BELOW MINIMUM OF 1095G). ALL WEIGHTS HAVE BEEN REPLACED WITH A NEW MASS WEIGHTS AND THE ELEVATOR BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED. THE ELEVATOR WAS RE-IDENTIFIED TO PART NUMBER 505-11082-601, AS PER SB INSTRUCTIONS. WE ALSO NOTED THE FOLLOWING RT ELEVATOR MASS BALANCE WEIGHTS BELOW TOLERANCE: ADJUSTABLE WEIGHTS PART NUMBER PE915109-L33 (7 EACH BELOW MINIMUM OF 84G); HORN MASS WEIGHT PART NUMBER PE915109-L42 (1 EACH BELOW MINIMUM OF 1095G). ALL WEIGHTS HAVE BEEN REPLACED WITH A NEW MASS WEIGHTS AND THE ELEVATOR BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED. THE ELEVATOR WAS RE-IDENTIFIED TO PART NUMBER 505-11082-602, AS PER SERVICE BULLETIN INSTRUCTIONS. THIS REPORT COMPLIES WITH FAA 14 CFR PART 135 OPERATORâS GMM REQUIREMENTS.
DURING DEPARTURE, CREW DETECTED FUMES IN COCKPIT THAT SMELLED LIKE AN IRON BURNING THROUGH CLOTH. FUMES SUBSIDED ENROUTE AFTER THROTTLE REDUCTION BUT WAS INTERMITTENT DURING DESCENT AND RELATIVE TO THROTTLE INCREASES. OPERATED THE LT AND RT ENGINES, NO SMOKE WAS PRESENT, ISOLATED ODOR TO LT BLEED SYSTEM, ON PREVIOUS MAINTENANCE LT BLEED PRECOOLER WAS REPLACED WITH A NEW PRECOOLER, RT BLEED PRECOOLER WAS REPLACED WITH AN OVERHAULED UNIT. FOUND ODOR TO BE SIMILAR TO THE OPERATION OF A NEW TOASTER. OPERATED LT AND RT ENGINE THREE TIMES AT THIRTY MINUTES EACH TIME AT VARIOUS POWER SETTINGS, ODOR HAD DISAPATED AND WAS ELIMINATED AT THE MIDDLE OF THE SECOND ENGINE RUN. OPERATIONAL CHECK WAS FOUND TO BE SATISFACTORY. ACCOMPLISHED IAW MM 36-10-00.
RT SIDE FUEL GAUGE INDICATING 400-500 LBS LESS THAN LT SIDE. THE RT SIDE APPEARED TO DROP AS WE LEVELED AT CRUISE ALTITUDE OF FL400. IMBALANCE REMAINED ALL THE WAY TO BLOCK IN. R & R FUEL/FLOW QUANTITY INDICATOR WITH A UNIT WHICH O/H, OPS CHECK GOOD. WORK IAW MM 28-41-00.
AFTER ENGINES WERE STARTED AND RUNNING STRONG FUMES (SIMILAR TO CAR EXHAUST FUMES) WAS COMING OUT OF ALL WEMAC OUTLETS. THERE WERE NO OTHER A/C'S ON RAMP WITH EITHER APUS OR ENGINES RUNNING. AFTER ENGINES WERE SHUTDOWN AND EXT POWER CONNECTED, THE FREON SYS WAS ENERGIZED. NO FUMES PRESENT. RAN ACFT WITH ONE ENG AT A TIME AND COULD NOT GET ANY ODOR OF FUMES. INSPECTED BOTH ENG EXHAUST FOR OIL LEAKAGE, INSPECTED THE ACM FOR OIL EVIDENCE AT JOINTS AND INSPECTED ACM OIL BOWL. NO LEAKS OF OIL ON ENG EXHAUST OR ACM DUCTS AND ACM OIL LEVEL WAS GOOD. CONTACTED LMCC AND THEY REQUESTED TO CHECK THE ACM WATER SOCK THEN RUN THE ENGINES AGAIN. REMOVED THE WATER SOCK AND IT WAS GOOD. WASHED WATER SOCK WITH DISH DETERGENT AND REPLACED ON TO THE WATER SEPARATOR. RAN ENGINES AGAIN WITH NO ODOR OF FUMES. OPS CHECK WAS GOOD. ALL WORK DONE IAW MM CHAP 21-51-00
RAN EACH ENGINE SEPEREATELY FOR TROUBLESHOOTING AND COULD NOT GET ANY FAULTS. REMOVED, INSPECTED AND CLEANED THE WATER SOCK. RAN ENGINES AGAIN WITHOUT FAULT. ALL WORK DONE IAW MM 21-51-00. OPS CHECK GOOD.
ANTI-SKID APPEARS TO RELEASE BRAKE PRESSURE DURING LANDING TAXI ROLL. TIGHTENED THE DRIVE CLIPS ON WHEEL COVERS OPS CHECKS GOOD IAW MM 32-42-00 OPS CHECK GOOD. OK TO CLOSE LT NOSE PANEL. NO BITES TRIPPED ON FAULT INDICATOR. REMOVED LT AND RT HUBCAPS. C/W ANTISKID OPS CHECK. OPS CHECKED GOOD. TIGHTENED TRANSDUCER DRIVE CLIPS. INSTALLED HUB CAPS AND SAFETIED. CLOSED NOSE BAGGAGE. IAW MM 32-42-00.
RT ENGINE QUIT WHEN THROTTLE WAS BROUGHT TO IDLE. REMOVED AND REPLACED RT ENGINE FLOW DIVIDER ROD END AND RIGGED IAW MM 71-01-03. GROUND RUN OPS NORMAL IAW MM 71-01-03 AND MM 76-11-00.
RT ENGINE QUIT WHEN THROTTLE WAS BROUGHT TO IDLE.
UPON LANDING ROLLOUT, BRAKES VERY WEAK, FEELS LIKE ANTI-SKID KICKING IN, TAKES EXCESSIVE DISTANCE TO STOP ON TAXI-IN. PERFORMED TAXI CHECK OF ACFT AND FOUND BRAKES TO OPERATE PROPERLY WITH ANTISKID ENGAGED OR DISENGAGED. PERFORMED OPS CHECK OF ANTI SKID SYS IN AIR MODE AND GROUND MODE. NO FAULTS COULD BE FOUND AT THIS TIME. INSPECTED TAXI CHECK AND ANTI-SKID TEST. OPS CHECK GOOD. GAINED ACCESS AND CLEANED RUDDER PEDAL AREA. C/W MASTER CYL INSP, OPS CHECK, AND BRAKE PRESSURE VERSUS MASTER CYLINDER PRESSURE TEST. ALL CHECK GOOD AT THIS TIME. ALSO PERFORMED REV 25 BRAKE BLEEDING PROCEDURE, MEMO M344-08-10. MX ACTION SATISFACTORY INSPECTED LT AND RT WHEEL TRANSDUCER WIRING HARNESSES NO DEFECTS NOTED ON RT HARNESS, FOUND IMPROPER SPLICES AND SHIELDING REPAIR ON LT TRANSDUCER HARNESS. PLACED LT HARNESS ON ORDER. ACTION SATISFACTORY AT THIS TIME. REMOVED DEFECTIVE WIRE HARNESS AND REPLACED WITH NEW HARNESS IAW MM 32-42-02 AND ALL OPS CHECKS ARE GOOD AT THIS TIME ACTION SATISFACTORY AT THIS TIME.
UPON LANDING ROLLOUT, BRAKES VERY WEAK.
UPON LANDING ROLLOUT, BRAKES VERY WEAK, FEELS LIKE ANTI-SKID KICKING IN, TAKES EXCESSIVE DISTANCE TO STOP ON TAXI-IN. PERFORMED TAXI CHECK OF ACFT AND FOUND BRAKES TO OPERATE PROPERLY WITH ANTISKID ENGAGED OR DISENGAGED. PERFORMED OPS CHECK OF ANTI SKID SYS IN AIRMODE AND GROUND MODE. NO FAULTS COULD BE FOUND AT THIS TIME. INSPECTED TAXI CHECK AND ANTI-SKID TEST. OPS CHECK GOOD. GAINED ACCESS AND CLEANED RUDDER PEDAL AREA. C/W MASTER CYL INSP, OPS CHECK, AND BRAKE PRESSURE VERSUS MASTER CYLINDER PRESSURE TEST. ALL CHECK GOOD AT THIS TIME. ALSO PERFORMED REV 25 BRAKE BLEEDING PROCEDURE, MEMO M344-08-10. MX ACTION SATISFACTORY INSPECTED LT AND RT WHEEL TRANSDUCER WIRING HARNESSES NO DEFECTS NOTED ON RT HARNESS, FOUND IMPROPER SPLICES AND SHIELDING REPAIR ON LT TRANSDUCER HARNESS. PLACED LT HARNESS ON ORDER. ACTION SATISFACTORY AT THIS TIME. REMOVED DEFECTIVE WIRE HARNESS AND REPLACED WITH NEW HARNESS IAW MM 32-42-02 AND ALL OPS CHECKS ARE GOOD AT THIS TIME ACTION SATISFACTORY AT THIS TIME.
BRAKING UPON TOUCHDOWN WAS NON-EXISTANT FOR APPROX 2-3 SECONDS FOLLOWING TOUCHDOWN. INSPECTED LT WHEEL WELL HARNESS FOUND ANTISKID WIRING AT CONN PL008 REPAIRED INCORRECTLY. OUTERSHIELD OF HARNESS WAS CONNECTED TO BACKSHELL AND ALSO TO PIN Y OF PL008. PIN Y SHOULD HAVE BEEN CONNECTED TO INNER SHIELD OF HARNESS WIRE. REPAIRED WIRING IAW WIRING MANUAL CHAP 32-40-01. PERFORMED ANTI-SKID WIRING CHECK TROUBLESHOOTING SHEET. ALL READING CHECK GOOD. ALL OPERATION CHECK GOOD THROUGH ALL TESTS. ALL WORK DONE IAW MM 32-42-00. MEASURED DRIVE CLIP GAP PRIOR TO INSTALLING HUBCAPS AND FOUND BOTH LT AND RT TO HAVE A GAP LARGER THAN SPECIFIED. ADJUSTED CLIPS AS NECESSARY. TAXIED ACFT AND ALL BRAKE OPERATIONS NORMAL ON POST RUN.
BRAKING UPON TOUCHDOWN WAS NONEXISTENT FOR APPROX 2-3 SECONDS FOLLOWING TOUCHDOWN.
INITIAL BRAKE CHECK ON F/O SIDE UPON LEAVING CHOCKS IS SATISFACTORY. HOWEVER, AFTER FLIGHT THE F/O BRAKES ARE COMPLETELY INEFFECTIVE.
REPEAT WRITE UP INITIAL BRAKE CHECK ON F/O SIDE UPON LEAVING CHOCKS IS SATISFACTORY. HOWEVER, AFTER FLIGHT THE F/O BRAKES ARE COMPLETELY INEFFECTIVE (BOTH SOFT PEDALS F/O SIDE) FOR THE LAST 2-3 SECONDS (CONTINUED FROM ABOVE) AFTER INITIAL BRAKE APPLICATION. AFTER THIS PERIOD, NORMAL BRAKING IS AVAILABLE TO THE RAMP. CAPT SIDE BRAKING SEEMS NORMAL AT ALL TIMES. REPAIRED SHIELDING TO LT WHEEL SPEED TRANSDUCER. REMOVED AND REPLACED RELAY KN002. ALL WORK DONE IAW WDM CH 32-40-01. GROUND CHECKS GOOD. PERFORMED ANTI-SKID WIRING CHECK AND FOUND SHIELDING FOR LT WHEEL SPEED TRANSDUCER HARNESS WAS NOT CORRECTLY GROUNDED, REPAIRED DEFECTIVE WIRING IAW WM 32-40-01. ALL ITEMS CHECK GOOD ON THE ANTI-SKID WIRING CHECKLIST. OPERATOR IS SHIPPING A (SKID CONTROL MOTOR RELAY KN002) AND WANT IT REPLACED. ARRIVES AT 8:30 8/27. REMOVED AND REPLACED RELAY KN002 IAW WDM CH 32-40-01. GROUND CHECKS GOOD.
FIRST OFFICER`S RIGHT PEDAL GOES TO THE FORWARD STOP WHEN INITIALLY DEPRESSED. WHEN BRAKE IS PUMPED, LIMITED BRAKING RETURNS. FIRST OFFICER`S LT BRAKE PEDAL IS "SPONGY", REQUIRING GREATER THAN NORMAL (CON`T) BRAKE APPLICATION. (S)
F/O RT PEDAL, GOES TO THE FWD STOP WHEN INITIALLY DEPRESSED; WHEN BRAKE IS PUMPED, LIMITED BRAKING RETURNS; F/O LT BRAKE PEDAL IS "SPONGY", REQUIRING GREATER THAN NORMAL BRAKE APPLICATION. INSPECTED PEDAL STRUCTURE FOR CRACKS AND MASTER CYLINDER'S FOR LEAKS, NO DISCREPANCIES FOUND. PERFORMED BRAKE BLEEDING PROCEDURE IAW MEMO M34-08-10. NO LEAKS NOTED. OPS CHECK GOOD.
CO-PILOT`S BRAKES ARE VERY SQUISHY. TAKES MUCH MORE THAN NORMAL PRESSURE WHEN APPLYING BRAKES. (S)
CO-PILOT'S BRAKES ARE VERY SQUISHY. TAKE MUCH MORE THEN NORMAL PRESSURE WHEN APPLYING BRAKES. VISUALLY INSPECTED RUDDER PEDAL MOUNT WEBBING FOR CRACKS AND FOUND NONE, BLED BRAKES IAW ENG MEMO NR M344-08-10, DATED 5-7-08. SYS OPS, LEAK CHECK GOOD.
CO PILOTS SIDE BRAKES-VERY LITTLE PRESSURE ON LANDING (PEDALS COMPRESS FULLY), THEY WORK BETTER DURING TAXI. CAPTAINS SIDE BREAKS NORMAL. BLED BRAKES IAW ENGINEERING MEMO NR M344-08-10 DATED 5/7/08. SYS OPS AND LEAK CHECKS GOOD.
VIOLENT NOSEWHEEL SHIMMY ON TAKEOFF BETWEEN 20-30 KNOTS (ABORTED TAKEOFF).
VIOLENT NOSEWHEEL SHIMMY ON TAKEOFF BETWEEN 20-30 KNOTS (ABORTED TAKEOFF). REMOVED AND REPLACED NOSE GEAR ACTUATOR IAW THE CHAP 32-21-03. LEAK AND OPERATIONAL CHECK NORMAL. R7R SHIMMY DAMPER IAW THE MM CHAPTER 32-21-02. LEAK AND OPS CHECK NORMAL. REMOVED AND REPLACED STEERING TRIM IAW THE MM CHAP 32-51-00. LEAK AND OPERATIONAL CHECK NORMAL.
CO-PILOT'S RT BRAKE IS SPONGY, WILL PUMP UP AFTER SEVERAL APPLICATIONS. INSPECTED RESERVOIR, PUMP/MOTOR, ACCUMULATOR, ANTISKID VALVES FITTINGS, (4) MASTER CYLINDERS RT BRAKE AND ASSOCIATED PLUMBING NO LEAKS FOUND, THOROUGHLY BLED RT BRAKE MM 32-42-00. SERVICED RESERVOIR COMPLETED TAXI CHECK NO DISCREPANCIES OPERATING GOOD AT THIS TIME.
DURING TAXI OUT, CO-PILOTS RT BRAKE IS SPONGY CAUSING A/C TO VEER LT. FOUND CO-PILOTS RT MASTER CYLINDER LEAKING. REMOVED AND REPLACED MASTER CYLINDER WITH NEW UNIT. OPS AND LEAK CHECK GOOD AT THIS TIME. IAW CE 560 M/M 32-42-01
CO-PILOTS RT BRAKE GOES SOFT. CAN BE PUMPED UP BUT GOES SOFT AGAIN. 09-28-07 BLED RT BRAKE. OPS CHECKS GOOD. WORK DONE IAW CITATION 560 M/M 32-42-00.
COPILOTS RT BRAKE PEDAL IS SOFT.
DURING LANDING, BRAKES GRAB THEN FADE MULTIPLE TIMES, BRAKE PRESSURE REMAINS GOOD. REPLACED LEFT MAIN WHEEL TRANSDUCER. INSTALLED AN OVERHAULED UNIT BY HYDRO-AIR INC FAA NR QD39785L. OPS CK GOOD PER CE560 MM CH 32-42-00.
CO-PILOT LEFT BRAKE PEDAL EXCESSIVE TRAVEL & SPONGY. CHECKED BRAKE ASSEMBLIES, ALL VISIBLE BRAKE LINES, MASTER CYLINDERS, & RESERVOIR FOR LEAKS, NONE FOUND. CHECKED BRAKE LINE FITTINGS FOR LOOSENESS FITTINGS FOUND SATISFACTORY. WORK PERFORMED IAW 560 M/M 32-42-01 & 32-42-02.
BRAKE PEDALS FEEL SOFT DURING USE, BRAKES GRAB AND RELEASE INTERMITTENTLY DURING LANDING DECELERATION. JACKED A/C INSPECTED BRAKES AND ENGAGEMENT OF ANTI-SKID, NO DEFECTS NOTED, BLEED BRAKES ALL WORK PERFORMED IAW CE-560 MM CHAPTER 32-40.