N576QS

Part: HANDLE — NO DISCREPANCY (ZONE 800) · airframe 15,923 hrs · 12,208 cycles

MAIN CABIN DOOR INTERIOR HANDLE IS EXTREMELY HARD TO MOVE. MAINLY TO THE CLOSED POSITION. IF THE MAIN CABIN DOOR IS IN THE OPEN POSITION IT APPEARS TO WORK NORMAL. CORRECTIVE ACTION: LUBRICATED MAIN CABIN DOOR INTERIOR HANDLE AS REQUIRED TO ACHIEVE PROPER OPERATION, OPS CHECKED GOOD. REF. CE-560XL S.P.M. 20-40-10.

Part: SEAL — LEAKING (ZONE 800) · airframe 15,732 hrs · 12,061 cycles

DURING CLIMB OUT WE HEARD AN UNUSUALLY LOUD HISSING NOISE COMING FROM THE MAIN CABIN DOOR. THE NOISE CHANGED IN PITCH AS THE CABIN DIFFERENTIAL CHANGED. NO PRESSURIZATION ISSUES WERE NOTED. INSTALLED NEW UPPER ACOUSTIC SEAL IAW AMM 52-10-04. OPS CHECK AND LEAK CHECK DOOR SEAL PERFORMED, NO DEFECTS NOTED. ALL WORK DONE IAW AMM 52-10-04, SRM 51-40-06.

Part: COUNTERBALANCE — OUT OF ADJUST (ZONE 800) · airframe 15,634 hrs · 11,983 cycles

MAIN DOOR: MAIN CABIN DOOR VERY DIFFICULT TO OPEN FROM THE INSIDE OR OUTSIDE. LIKEWISE, IF THE DOOR IS FULLY OPEN IT IS VERY DIFFICULT TO KEEP IT FROM SLAMMING SHUT FROM THE INSIDE OR OUTSIDE. CORRECTIVE ACTION: ADJUSTED COUNTER BALANCE CABLE TENSION. OPS CHECK GOOD. IAW CE-560XLS AMM 52-10-03.

Part: SWITCH — OUT OF POSITION (ZONE 200) · airframe 15,547 hrs · 11,911 cycles

FUEL CROSSFEED HARDWARE: CROSSFEEDING LEFT TO RIGHT, BOTH FUEL BOOST L AND R ILLUMINATED ALONG WITH BOTH LO FUEL PRESS L AND R. CAME OUT OF CROSSFEED AND BOTH LO PRESS L AND R LIGHTS EXTINGUISHED. BOTH L AND R FUEL BOOST REMAINED ILLUMINATED. FOLLOWED THE CHECKLIST WHICH CALLS FOR THE FUEL BOOST SWITCH TO GO TO ON AND THEN NORM AND THIS RESOLVED THE ISSUE WITH THE FUEL BOOST LIGHTS.

Part: CARTRIDGE — FAULTED (FUEL PUMP) · airframe 15,547 hrs · 11,911 cycles

FUEL CROSSFEED HARDWARE: CROSSFEEDING LEFT TO RIGHT, BOTH FUEL BOOST L AND R ILLUMINATED ALONG WITH BOTH LO FUEL PRESS L AND R. CAME OUT OF CROSSFEED AND BOTH LO PRESS L AND R LIGHTS EXTINGUISHED. BOTH L AND R FUEL BOOST REMAINED ILLUMINATED. FOLLOWED THE CHECKLIST WHICH CALLS FOR THE FUEL BOOST SWITCH TO GO TO ON AND THEN NORM AND THIS RESOLVED THE ISSUE WITH THE FUEL BOOST LIGHTS. CORRECTIVE ACTION: REMOVED AND REPLACED L/H FUEL BOOST PUMP CARTRIDGE IN REFERENCE TO CESSNA 560XL MM 28-21-01. OPS AND LEAK CHECK GOOD

Part: BATTERY PACK — NO TEST (ZONE 200) · airframe 15,399 hrs · 11,795 cycles

CABIN EMERG LIGHT: DURING FIRST FLIGHT OF THE DAY CHECK, THE INTERIOR AND EXTERIOR EMERGENCY LIGHTS DID NOT ILLUMINATE. CONDITION: MAIN BATTERY OFF, EMERG LIGHTS IN ON AND THEN ARM POSITION. CORRECTIVE ACTION: TC-5XL-33-200102-JIC (EMER-LIGHTING BATTERY PACK (PN 9913-1) TOP CHARGING. OPS CHECKS NORMAL AT THIS TIME.

Part: CHECK VALVE — INOPERATIVE (ZONE 700) · airframe 15,284 hrs · 11,701 cycles

AMBER BRAKE LO PRESS AND ANTI SKID ANNUNCIATOR FLASHED FOR APPROXIMATELY 2 SECONDS AFTER BRAKE APPLICATION ON TOUCHDOWN IN KAVL. BRAKES WERE NOTICEABLY SOFT UNTIL LIGHT WENT OUT. CORRECTIVE ACTION: REPLACED POWER BRAKE CIRCUIT BREAKER AND BRAKE MANIFOLD CHECK VALVE. OPS CHECK GOOD. IAW CE-560XL WM 32-40-01, CE-560XL AMM 32-44-20, AND CE-560XL AMM 32-44-00

Part: CONTROL VALVE — FAULTED (MAIN DOOR) · airframe 14,948 hrs · 11,435 cycles

MAIN CABIN DOOR DIFFICULT TO OPEN & CLOSE FROM INSIDE & OUTSIDE OF ACFT. WHEN APU BLEED AIR IS ON, THERE`S APPROX A 10 SEC DELAY FOR DOOR SEAL TO DEFLATE AFTER OPENING DOOR. WHEN CLOSING DOOR, PRECATCH WILL HOLD DOOR CLOSED, BUT WILL NOT RELEASE WHEN HANDLE IS PULLED. PERFORMED OPS TEST OF DOOR PRE-CATCH. NO DEFECTS, PRE-CATCH PERFORMS AS REQUIRED. LUBRICATED DOOR LOCKING PINS. PERFORMED OPS CHECK OF DOOR SEAL, WAS NOTED THAT SEAL DEFLATES AT A SLOW RATE. REMOVED SUSPECT FAULTY ACOUSTIC SEAL VALVE & INSTALLED A NEW VALVE. REMOVED BROKEN TUBE ASSY & INSTALLED A NEW TUBE ASSY. OPS CHECK PERFORMED GOOD, NO DEFECTS. WORK PERFORMED IAW MM 52-10-01, 52-10-00, 36-15-00, 25-20-05 & 25-20-17.

Part: NONE — NONE · airframe 13,756 hrs · 10,554 cycles

MAIN DOOR: DOOR WORKED FINE IN OAK BEFORE DEPARTURE BUT WAS RAINING LANDED IN BOZMAN DOOR SEALS DEFLATED BUT WAS UNABLE TO OPEN DOOR BOTH ME AND A LINE GUY ON THE OUT SIDE FINALLY GOT IT OPENED AFTER 10 MIN OF GIVING EVEY THING I HAD AND WOULD NOT OPEN NOW ITS OPEN WE CAN NOT GET IT TO CLOSE HANDLE WILL NOT GO PAST CENTER TO LOCK WITH DOOR OPENED OR CLOSED PINS DONT COME OUT DOES CATCH ON PRECATCH AND THAT FUNCTIONS NORMALLY (REPEAT WRITE UP FROM YESTERDAY)//CORRECTIVE ACTION//FOUND WATER AND ICE WITHIN OPERATING MECHANISMS. FOUND PASSENGER DOOR SEAL INFLATION VALVE STICKING. CLEANED, LUBED, AND CYCLED BOTH INFLATION AND DEFLATION VALVES NOTING VALVES NOW OPERATE FREELY. INFLATED PASSENGER DOOR SEAL AND INSPECTED FOR LEAKS WITH NONE NOTED. CE560XLS MM CH 52-10-04.

Part: NONE — NONE · airframe 13,746 hrs · 10,549 cycles

MAIN DOOR: MAIN CABIN DOOR DIFFICULT TO OPEN AND LOCK WITH THE INSIDE AND OUTSIDE HANDLES. // SIGNOFF// VERIFIED DISCREPANCY. FOUND THE DOOR LOCK PINS NEEDED LUBRICATION. LUBRICATED DOOR LOCK PINS AS REQUIRED. PERFORMED OPS-CHECK AND OPS-CHECK GOOD. DOOR LOCKS AND UNLOCKS EASIER. WORK PERFORMED IRW CE-560XLS AMM 52-10-00.

Part: DOOR — DIRTY · airframe 13,450 hrs · 10,351 cycles

MAIN DOOR HANDLE: MAIN CABIN DOOR INTERIOR HANDLE REQUIRES EXCESSIVE FORCE TO OPEN OR CLOSE // SIGNOFF// ARRIVED AT AIRCRAFT TO VERIFY DOOR BEING DIFFICULT TO LOCK AND UNLOCK FROM INSIDE THE AIRCRAFT. FOUND TO BE DIFFICULT TO LOCK AND 4F UNLOCK, OPENED DOOR, CLEANED AND LUBRICATED, ALL DOOR LOCK PINS, AND DOOR SOCKETS. PERFORMED OPS CHECK ON DOOR AND FOUND IT TO BE SATISFACTORY. WORK PERFORMED IN REF TO CE 560XLS AMM 52-10-00.

Part: HANDLE — BINDING (PAX DOOR) · airframe 13,395 hrs · 10,308 cycles

MAIN DOOR PRECATCH: MAIN CABIN DOOR IS VERY DIFFICULT TO OPEN DUE TO PRE CATCH. PRE CATCH HANDLE PULL TAKES EXCESSIVE FORCE TO RELEASE PRECATCH. GAINED ACCESS TO PRECATCH ASSY BEHIND LEFT GALLEY. ADJUSTED PRECATCH ASSY IAW MM 52-10-01 AND NJ TC-5XL-52-141001 OPS CHECKS GOOD. CLOSED UP ACCESS TO PRECATCH ASSY. NO OTHER DEFECTS NOTED. ORIG SUB DATE: 11/15/2022

Part: BATTERY — INOPERATIVE · airframe 13,381 hrs · 10,226 cycles

THE AFT CABIN EMERGENCY LIGHTS AND THE THREE EMERGENCY LIGHTS OVER THE RIGHT WING ARE NOT WORKING. "CORRECTIVE ACTION" REMOVED EMERGENCY BATTERY PN 9913-1 SN 2165. INSTALLED OVERHAULED EMERGENCY BATTERY PN 9913-1 SN 1664 WORK PERFORMED IAW CE560XLS AMM 33-50-01.

Part: NONE — NONE · airframe 12,869 hrs · 9,891 cycles

MAIN DOOR CABLE: WHEN OPENING MAIN CABIN DOOR FROM INSIDE, DOOR FALLS FAST WITH NO TENSION // SIGNOFF// PERFORMED OPERATIONAL CHECK OF MAIN DOOR COULD NOT VERIFY SQUAWK. REMOVED AIRSTAIRS STEP ASSEMBLY AND VERIFIED RIGGING OF THE MED SYSTEM WITH NO DEFECTS NOTED. CONTACTED MCC AND INFORMED THEM OF MX PERFORMED. SPOKE WITH R SEWELL AND CHECKED HISTORY. ITEM TO BE SIGNED OFF. RETURNED AIRCRAFT TO ORIGINAL CONFIGURATION. ALL MX CW IN REF. TO CESSNA MODEL 560XL AMM 52-10-00.

Part: BATTERY — DEFECTIVE · airframe 12,464 hrs · 9,596 cycles

EMERG EXIT SIGN/LIGHT: EMERGENCY EXIT LIGHTS ABOVE MAIN CABIN DOOR AND ALONG BOTH SIDES OF MAIN CABIN DOOR ARE INOPERATIVE UNLESS MAIN DC POWER IS TURNED ON ALSO. // SIGNOFF// PERFORMED OPERATIONAL CHECK OF EMERGENCY LIGHTING SYSTEM IAW CE560XLS MM CH.33-50-01 NOTING EMERGENCY EXIT LIGHTS ABOVE MAIN CABIN DOOR AND OVERWING EMERGENCY LIGHTS INOPERATIVE. OTHER EMERGENCY LIGHTS APPEAR VERY DIM. ALLOWED EMERGENCY BATTERIES TO CHARGE ON EXTERNAL POWER FOR 1.75HRS. AGAIN, PERFORMED OPERATIONAL CHECK OF EMERGENCY LIGHTING SYSTEM IAW CE560XLS MM CH.33-50-01 NOTING EMERGENCY EXIT LIGHTS ABOVE MAIN CABIN DOOR AND OVERWING EMERGENCY LIGHTS NOW OPERATING BUT VERY DIM. SUSPECT FAULTY EMERGENCY BATTERY POWER SUPPLIES. GAINED ACCESS TO AND REMOVED FORWARD EMERGENCY BATTERY POWER SUPPLY P/N 9913-1 S/N 2014 AND INSTALLED OVERHAULED POWER SUPPLY P/N 9913-1 S/N 2244 IAWCE560XLS MM CH.33-50-01. GAINED ACCESS TO AND REMOVED AFT EMERGENCY BATTERY POWER SUPPLY P/N 9913-1 S/N 2644 AND INSTALLED OVERHAULED POWER SUPPLY P/N 9913-1 S/N 736 IAW CES60XLS MM CH.33-50-01. SEE ITEMS 5.5 AND 5,6 OF THIS WORK ORDER FOR BATTERY TOP-CHARGING PERFORMED. PERFORMED OPERATIONAL CHECK OF EMERGENCY LIGHTING SYSTEM IAW CE560)(LS MM CH.33-50-01 WITH NO DEFECTS NOTED. OPERATIONAL CHECKS GOOD. CLOSED ALL ACCESS AS REQUIRED,

Part: UNKNOWN — ODOR (CABIN) · airframe 12,189 hrs · 9,394 cycles

CABIN ODOR: WITH THE APU RUNNING AND APU BLEED AIR ON, THERE IS A STRONG DIRTY SOCK ODOR IN THE CABIN. THE ODOR SEEMS WORSE AT THE BACK OF THE CABIN. POWERED UP AIRCRAFT AND RAN APU AND NOTICED A SLIGHT ODOR IN THE COCKPIT. POWERED DOWN AIRCRAFT AND BEGAN O REMOVE THE WATER SEPARATOR. REMOVED THE CONDENSER BAG AND INSTALLED NEW CONDITION CONDENSER SOCK. INSTALLED PREVIOUSLY REMOVED WATER SEPARATOR AND BEGAN THE BURN OUT PROCESS. AFTER ABOUT 30 MINUTES FOR PERFORMING THE BURNOUT PROCESS FOUND THE ODD ODOR TO DISSIPATE. POWERED DOWN AIRCRAFT AND RETURNED IT TO ORIGINAL CONDITION. ALL WORK PERFORMED IAW CE-560XLS AMM CH 21-51-00

Part: ACCESS PANEL — CRACKED (VERTICAL STAB) · airframe 11,068 hrs · 8,578 cycles

FOUND VERTICAL STABILIZER ACCESS PANEL 340FR CRACKED IN MULTIPLE SCREW DIMPLES, REPLACED WITH NEW CESSNA P/N 5531005-3.

Part: CONVERTER — DIRTY (OZONE) · airframe 10,806 hrs · 8,401 cycles

BURNED FUEL ODORS IN BOTH COCKPIT AND CABIN WHILE ENGINE OR APU IS RUNNING, SAME ODOR IS FOUND WHEN HELL HOLE DOOR IS OPENED AND WHEN STANDING UP IN THE AFT ACCESS SPACE. ODOR IS MORE SUBSTANTIAL WITH APU ON AND ENGINES OFF, THAN JUST ENGINES ALONE. BOTH PIC AND SIC, HAVE EXPERIENCED HEADACHES DURING FLIGHTS THAT CLEAR ONCE EXPOSED TO OUTSIDE AIR, CARBON MONOXIDE EXPOSURE FROM FUMES IS SUSPECTED.// SIGNOFF // RAN APU WITH BLEED AIR ON AND DID NOT NOTICE A FUEL SMELL, NOTED THAT A MUSTY SMELL COMING FROM DUCTS. INSPECTED DUCTS IN THE AFT SERVICE COMPARTMENT AND APU INLET, EXHAUST WITH NO DEFECTS NOTED. PER MCC REMOVED COELESCER SOCK AND REPLACED WITH NEW P/N ON AND OFF 83237-12. ALSO REPLACED BOTH R/H AND L/H OZONE CONVERTERS WITH NEW L/H P/N ON AND OFF 9914523-2, S/N OFF 2151 ON 2455. R/H P/N ON AND OFF 9914523-2, S/N OFF 2160 ON 2454. ALSO PERFOIRMED TC-5XL~21-120902M ECS DUCT BURN OUT. REF THIS W/O SQUAWK 1.4. RAN AIRCRAFT WITH APU ONLY AND ENGINES WITH NO FUEL ODOR NOTED IN CABIN OR COCKPIT. ALSO HAD A CARBON MONOXIDE TESTED IN CABIN/COCKPIT DURING BURN OUT TEST NO LEVELS OF CARBON MONOXIDE READ. LEAK CHECK OF WATER SOCK AND OZONE CONVERTERS GOOD. NO FURTHER DEFECTS NOTED AT THIS TIME.I.A.W CITATION 560XL MM 12-20-21-3, 21-71-00

Part: PUMP — FAILED (HYD SYSTEM) · airframe 9,469 hrs · 7,348 cycles

DURING CLIMB, APPROXIMATELY 5 MINUTES AFTER LAST USE OF HYD SYSTEM, THE HYD LOW LEVEL ILLUMINATED. ON POST FLIGHT INSPECTION, HYD LEVEL APPROX 1 1/2 ABOVE EMPTY LINE. REMOVED AND REPLACED THE LT ENGINE DRIVEN HYDRAULIC PUMP IAW MM 29-11-03. OPS AND LEAK CHECKED GOOD.

Part: BRAKE SYS — UNKNOWN (MLG) · airframe 7,329 hrs · 5,729 cycles

LEFT BRAKE GRABBED & DRAGGED. ACFT JACKED, CHECKED THAT WHEELS SPIN FREELY WITH NO DRAGGING. ANTI-SKID DRIVE CAPS REMOVED & CHECKED SERVICEABLE, ANTI-SKID GND TEST PERFORMED & CHECKED SERVICEABLE IAW AMM 32-41-02 & 32-44-00.

Part: BRAKE ASSY — MALFUNCTIONED (LT MLG) · airframe 5,355 hrs · 4,160 cycles

ON TAKEOFF ROLL, LEFT BRAKE DID AN INTERMITTENT GRAB. ON TAXI INTO PARKING AT SLOW SPEED THE LEFT BRAKE MADE A GRINDING NOISE AND GRABBED SUDDENLY. FOUND LEFT BRAKE ROTORS EXTREMEMLY HARD TO ROTATE. R & R LT BRAKE ASSEMBLY IAW MM 32-42-09. OPS & LEAK AND TAXI CHECKED GOOD.

Part: DOWNLOCK SWITCH — INOPERATIVE (MLG) · airframe 4,849 hrs · 3,762 cycles

AFTER SELECTING MLG HANDLE TO DOWN POSITION. RECEIVED A RT MLG UNSAFE INDICATION. RAN CHECKLIST, UNSAFE INDICATION REMAINED. (RED UNSAFE LIGHT) A GREEN NOSE AND LT MAIN LIGHTS ON WITH NO RT MAIN LIGHT. LIGHT TESTED GOOD. WHEN FLAPS WERE SELECTED PAST 15, GEAR WARNING SOUNDED. AND GPWS ALSO GAVE US A GEAR UNSAFE INDICATION. FOUND RT DOWNLOCK SWITCH READS OPEN. H-G READS CONTINUITY IN AIR SIDE OF SWITCH. TAPPED SWITCH AND H-J READS CONTINUITY AND H-6 READS OPEN. R & R DOWNLOCK SWITCH. RIGGED SWITCH. CHECKED GOOD IAW MM 32-30-04.

Part: TRUNNION — DAMAGED (LT MLG) · airframe 4,843 hrs · 3,759 cycles

ON ROTATION, LOST APPROX. 180 GALLONS OF FUEL IN THE 10 MIN FLIGHT. FUEL WAS STREAMING FROM THE LT WHEEL WELL AT TAXI IN. REMOVED LT MLG ASSY. INSTALLED LT MLG WITH NEW TRUNNION AND AN INSPECTED TRAILING LINK. PERFORMED GEAR SWINGS AND HYD SYS BLEEDING.

Part: METERING VALVE — MALFUNCTIONED (LT MLG BRAKES) · airframe 3,887 hrs · 1,388 cycles

EXCESSIVE GRABBING ON LT BRAKE. YOU CAN FEEL ON THE PEDALS AND IT IS AUDIBLE. R & R BRAKE METERING VALVE IAW MM 32-44-20, RIGGED BRAKE CABLES FROM BRAKE MIXER ASSY TO METERING VALVE IAW MM 32-44-10. OPS AND TAXI CHECKED GOOD.

Part: SEAL — LEAKING (BLEED AIR SYS) · airframe 3,652 hrs · 2,845 cycles

DURING CRUISE BOTH ENGINE FIRE SWITCHLIGHTS ILLUMINATED. EXECUTED EMERGENCY CHECKLIST ITEMS. ALL ENGINE INSTRUMENTS INDICATED NORMAL. DESCENDING THROUGH 5000 FT AT 180 KTS, BOTH FIRE LIGHTS EXTINGUISHED. AFTER VISUAL INSPECTION OF BOTH ENGINES, THERE WAS NO EVIDENCE OF FIRE. TROUBLESHOT FAULT TO BLEED AIR LEAKS ON BOTH ENGINES AT HP AIR COUPLINGS AROUND THE PYLON AREA, AND COUPLING AT 90 DEGREE TURN TO PRE-COOLER. GAINED ACCESS TO ALL B/A SEALS ON LT & RT ENGINES, REMOVED FAILED SEALS AND INSTALLED NEW SEALS IAW MM 36-11-00 AND SAFETY COUPLINGS IAW MM 20-10-13 SYS OPS AND LEAK CHECKED GOOD.

Part: ELEVATOR — OBSTRUCTED · airframe 2,083 hrs · 1,617 cycles

DURING TAKE OFF, THE ELEVATOR FLIGHT CONTROL WOULD NOT TRAVEL BEYOND THE NEUTRAL POSITION WHEN ATTEMPTING TO ROTATE DUE TO A BLOCKAGE WHICH FELT LIKE A METAL TO METAL OBSTRUCTION. FOUND BOLT MISSING FOR AFT STOP. STOP ROTATED INTO PATH OF BELLCRANK. LOCATED MISSING BOLT AND NUT. REMOVED MOUNT BOLTS IN FWD AND AFT STOPS AND INSTALLED NEW WITH NEW LOCK NUTS. TRAVEL CHECKS GOOD AND CHECKS OF BOTH CONTROL COLUMNS FOR FREEDOM OF MOVEMENT GOOD AT THIS TIME. REF MM 27-31-00, 27-31-03 AND 27-71-00 CONTROL LOCK. OPS CK GOOD.

Part: WINDSHIELD — UNKNOWN (COCKPIT) · airframe 2,016 hrs · 1,557 cycles

REMOVED LT WINDSHIELD AND INSTALLED NEW WINDSHIELD WITH NEW HARDWARE, PERFORMED WINDSHIELD SYS PCU/ALTERNATOR AND CONTROLLER FAILURE CHECK AND NO DEFECTS NOTED. OPS CHECK AND LEAK CHECK FOUND NORMAL, APPLIED FILLET SEAL. OPS CHECK NORMAL WORK DONE IAW MM, CHPT 56-11-00.

Part: WINDSHIELD — FAILED (COCKPIT) · airframe 2,016 hrs · 1,557 cycles

LT MAIN WINDSHIELD OUTER PANE SHATTERED AT 38,000 FT.

Part: METERING VALVE — MALFUNCTIONED (MLG BRAKES) · airframe 1,970 hrs · 1,528 cycles

UPON LANDING AND SLOWING TO TAXI SPEED LT BRAKE PEDAL APPLICATION RESULTS IN LT BRAKE GRABBING. THIS HAPPENS ON THE CO-PILOTS SIDE AND CONTINUES DURING TAXI. BRAKES FEEL SPONGY ON CO-PILOTS SIDE. DURING TAXI THE MAIN LANDING GEAR IS MAKING A LOUD GROWLING NOISE WHEN THE BRAKES ARE APPLIED. REMOVED AND REPLACED BRAKE METERING VALVE. OPERATIONAL AND LEAK CHECKS GOOD. WORK PEFORMED IAW MM 32-44-20.

Part: BRAKE SYS — MALFUNCTIONED (MLG) · airframe 1,818 hrs · 1,404 cycles

DURING BRAKE APPLICATION OF 20-40 PERCENT OF MAXIMUM, SYMMETRIC BRAKE APPLICATION CAUSES THE ACFT TO YAW TO THE LT. CONDITION OCCURS FROM BOTH LT AND RT PILOT SEATS. INSPECTED BRAKES, NO DEFECTS NOTED. BLEED BRAKE SYSTEM AND PERFORMED TAXI CHECK. APPLIED BRAKES DURING TAXI 5-6 TIMES WITH NO YAW. OPS CHECK GOOD. ALL WORK PERFORMED IAW MM 32-44-00, 09-20-00 AND ACFT OPS MANUAL.

Part: MOTOR — INOPERATIVE (HYD PUMP) · airframe 156 hrs · 132 cycles

AFTER CLEARING RUNWAY ON TAXI IN, LO BRAKE PRESSURE LIGHT CAME ON, AND HAD NO BRAKES SO PULLED EMERGENCY BRAKE LEVER TO STOP THE A/C. FOUND BRAKE HYDRAULIC PUMP "ELECTRIC MOTOR" BAD. REPLACED WITH OVERHAULED UNIT IAW CE560XLS MM CH 32-42-00 AND ANTISKID BLEED IAW CE560XLS MM CH 32-42-00. PERFORMED GEAR RETRACTION IAW CE560XLS MM CH 32-30-08. OPS CHECK GOOD.