N998QS

Part: SKIN — CORRODED (LT WING) · airframe 15,299 hrs · 9,221 cycles

REPAIR OF LOWER WING SKIN CORROSION ACCOMPLISHED IAW TEXTRON AVIATION ENGINEERING REPAIR MEMO DQ19509M1, DATED 10 MAY 2019.

Part: LANDING GEAR — MALFUNCTIONED (NLG) · airframe 14,583 hrs · 8,803 cycles

AFTER TAKEOFF, RETRACTED THE GEAR. ALL GEAR CAME UP, BUT THE NOSE GEAR STARTED CYCLING UP AND DOWN. THE NOSE GEAR INDICATIONS CYCLED FROM RED TO GREEN. PUT THE GEAR HANDLE BACK DOWN. ALL GEAR INDICATIONS STAYED GREEN, THE LANDING GEAR LOCK WAS CYCLING ON AND OFF. REMOVED AND REPLACED THE LANDING GEAR LOGIC MODULE IAW MM 24-53-00. REMOVED AND REPLACED THE RIGHT MAIN GEAR LANDING GEAR SQUAT SWITCH IAW MM 32-60-00, REMOVED AND REPLACED THE NOSE LANDING GEAR ACTUATOR DOWNLOCK SWITCH IAW MM 32-30-03, LANDING GEAR OPS CHECKED GOOD.

Part: SKIN — CORRODED (FUSELAGE) · airframe 14,466 hrs · 8,729 cycles

FUSELAGE BELLY SKIN CORRODED. REPAIRED IAW S-750-0198/14RD, MAJOR REPAIR.

Part: PUMP — MALFUNCTIONED (FUEL SYSTEM) · airframe 12,827 hrs · 7,709 cycles

WHILE DESCENDING THRU 30000 FT & CROSS FEEDING RT TANK TO LT ENG, THE FUEL BOOST ON LT AMBER CAS CAME ON, TURNED THE CROSS FEED OFF. THEN THE FUEL PRESS LOW RT AMBER CAS CAME ON, TURNED ON THE BOOST PUMPS. AT THAT TIME THE RT ENG QUIT RUNNING. RAN THE ENG SECURING CHECKLIST FOLLOWED BY THE SINGLE ENG APPROACH & LANDING CHECKLIST. REMOVED RT ENG MOTIVE FLOW PUMP & INSTALLED AN OVERHAULED PUMP. FLUSHED LT & RT FUEL SYS. SYS OPERATION & LEAK CHECK GOOD. WORK PERFORMED IAW 73-10-00 OF THE MM. ALSO, REPLACED PRESS SWITCHES, MOTIVE FLOW PUMP ON LT ENG, SOVS, BOOST PUMP CARTRIDGES & FUEL FILTERS ON BOTH ENGS IAW 28-20-00 OF THE MM. COMPLIED WITH FINAL ENG RUNS, SYS CHECKED GOOD.

Part: CONTROLLER — FAILED (WINDSHIELD HEAT) · airframe 11,979 hrs · 7,208 cycles

THE WINDSHIELD HEAT WAS INOPERATIVE. LT AMBER CAS MESSAGE ILLUMINATED, IMMEDIATELY HAD A BURNING ODOR IN THE COCKPIT. REMOVED AND REPLACED THE LT WINDSHIELD TEMP CONTROLLER. PERFORMED FUNCTIONAL CHECKS IAW AMM 30-41-00. ALL SATISFACTORY.

Part: ACM — FAILED (COCKPIT) · airframe 11,412 hrs · 6,833 cycles

WHEN MAX BLEED SELECTED ON DECK VERY STRONG ACRID ODOR PRESENT IN CABIN & COCKPIT. ODOR HAS ELEMENTS OF ELECTRICAL & SULFUR. REMOVED AND REPLACED COCKPIT ACM WITH A NEW UNIT. OPS CHECKED SATISFACTORY IAW MM 21-51-00.

Part: ACM — ODOR (LEFT) · airframe 10,844 hrs · 6,497 cycles

DURING OPENING ISOLATION VALVE WITH APU RUNNING AND ENGINES SHUTDOWN, A STRONG BURNING ORDOR OCCURED IN COCKPIT. ODOR DOES NOT PERSIST FOR MORE THAN A FEW SECONDS AND SEEMS TO BE ORIGINATING FROM THE COCKPIT A/C PACK. CYCLED LT AND RT PACK SWITCHES AND FOUND THAT THE ODOR OCCURS WHEN THE LT PACK SWITCH IS CYCLED. REMOVED AND REPLACED COCKPIT ACM. LEAK AND OPS CHECKED SATISFACTORY IAW MM 21-51-00.

Part: CABLE — BINDING (BRAKES) · airframe 10,069 hrs · 6,003 cycles

RIGHT BRAKE IS BINDING AND AT HIGH SPEED IT IS ALMOST UNUSABLE. FOUND RT BRAKE TELEFLEX CABLE BINDING WITH A RATCHETING EFFECT THAT IS FELT IN BOTH RT BRAKE PEDALS(CAPTAINS AND F/O'S) AND TRANSMITTED TO BRAKE METERING VALVE. R & R DEFECTIVE RT (CO-PILOT) TELEFLEX CABLE IAW MM 32-42-02. OPS AND LEAK CHECKS GOOD AT THIS TIME.

Part: ACTUATOR — FAILED (NLG) · airframe 9,501 hrs · 5,650 cycles

ON GEAR RETRACTION, GEAR MADE A LOUD BANG THAT SHOOK THE ACFT. ALL GEAR POSITION LIGHTS DISPLAYED NORMAL OPERATION. ON EXTENSION, A METAL TO METAL SLAP SOUND CAME FROM NOSE GEAR, OTHERWISE GEAR FUNCTIONED NORMALLY. R & R THE NLG ACTUATOR IAW MM 32-30-03. OPS & LEAK CHECKED GOOD.

Part: UNKNOWN — UNKNOWN (LANDING GEAR) · airframe 9,491 hrs · 5,642 cycles

VERY HARSH BANG WAS FELT UPON GEAR RETRACTION. GEAR EXTENDED NORMALLY. ALL LIGHTS WERE NORMAL. VISUALLY INSPECTED NOSE AND MAIN GEAR AND SURROUNDING AREAS WITH NO DEFECTS NOTED. JACKED ACFT AND CYCLED GEAR AND VERIFIED UPLOCK HOOK ENGAGEMENT WAS IN SPEC. CYCLED GEAR SEVERAL TIMES WITH NO DEFECTS NOTED OR LOUD ABNORMAL NOISES. GEAR LIGHTS, ALSO OPS CHECK GOOD. SERVICED NOSE STRUTS IAW REQUEST IAW MM 12-10-38 DOWNJACKED ACFT AND SERVICED HYD RESERVOIR ALL OTHER WORK ACCOMPLISHED IAW MM 32-30-00, 32-20-01, 12-10-15. COULD NOT DUPLICATE DISCREPANCY AT THIS POINT.

Part: POWER UNIT — INOPERATIVE (TE FLAPS) · airframe 8,960 hrs · 5,324 cycles

DESCENDING, RECEIVED A FLAPS FAIL CAS MESSAGE WITH SLATS DEPLOYED, WHEN FLAPS 5 REQUESTED. LEVELED OFF AT 16,000 FT AND RAN CHECKLIST. WHEN SELECTING FLAPS 0, SLATS WOULD RETRACT AND LIGHT WOULD GO OUT THEN RE-APPEAR. ABLE TO SELECT SLATS FOR LANDING BUT NO FLAPS. DIVERTED FOR THE LONG RUNWAY AND DECLARED AN EMERGENCY. NO FLAP LANDING UNEVENTFUL. THE FOLLOWING CODES WERE PRESENT AFTER LANDING: NR 2 AND NR 7. REMOVED FLAP PCU AND INSTALLED SERVICEABLE REPAIRED UNIT IAW MM 27-52-00. SYS OPS CHECKED GOOD.

Part: STRUT — UNDERSERVICED (NLG) · airframe 7,501 hrs · 4,430 cycles

GEAR HANDLE WOULD NOT MOVE TO THE UP POSITION ON DEPARTURE. FOUND NOSE STRUT NOT SERVICED PROPERLY. SERVICED NOSE STRUT. OPS CHECKED GEAR HANDLE. NO FURTHER DEFECTS NOTED. REF MM 12-10-38 AND 32-30-00.

Part: SQUAT SWITCH — OUT OF ADJUST (MLG) · airframe 7,499 hrs · 4,429 cycles

LANDING GEAR WOULD NOT RETRACT UPON DEPARTURE; GEAR HANDLE WOULD NOT RAISE. FOUND NLG SQUAT SWITCH OUT OF ADJUSTMENT. RE-ADJUSTED SWITCH IAW MM, PERFORMED 8 GEAR SWINGS, GEAR HANDLE AND INDICATOR'S WORK PROPERLY. REMOVED ACFT FROM JACKS, SERVICED HYD SYS RESERVOIR, NO FURTHER ACTION REQUIRED AT THIS TIME. REF MM 7-10-0, 32-60-00, 52-80-20, 12-10-15.

Part: LIMITER — FAILED (RUDDER) · airframe 5,692 hrs · 3,382 cycles

THE AMBER (RUDDER LIMIT FAIL B) CAS MESSAGE ILLUMINATED IN FLIGHT AND REMAINED ON WITH SHUTDOWN. RUDDER LIMITER FAILED AT 67 PERCENT. REMOVED & REPLACED T.R. SWITCH.

Part: UNKNOWN — FUMES (CABIN) · airframe 5,428 hrs · 3,215 cycles

ENVIRONMENTAL FUMES IN AIRCRAFT, WORSE WHEN APU BLEED AIR IS ON. APU OIL LEVEL LOW AGAIN AFTER SERVICE (4) DAYS AGO. REMOVED AND REPLACED WITH REPAIRED APU DUE TO LEAKING OIL. OPS CHECKED GOOD. LEAK CHECKED GOOD. WORK DONE IAW 750 MM CHAPTER 49-10-00

Part: COALESCER BAG — DIRTY (AFT SERVICE BAY) · airframe 5,247 hrs · 3,095 cycles

ON 5 MILE FINAL, STRONG BURNING ELECTRICAL SMELL IN COCKPIT, REMOVED BOTH COALESCER SOCKS P/N 746451-3 AND INSTALLED 2 NEW SOCKS P/N 746451-3.

Part: ACM — LEAKING · airframe 5,246 hrs · 3,094 cycles

STRONG ODOR OF SOMETHING BURNING IN COCKPIT. REMOVED BOTH COALESCER SOCKS P/N 746451-3 AND INSTALLED 2 NEW SOCKS P/N 746451-3. REMOVED THE COCKPIT (AFT) ACM P/N 738384-33 S/N 9808193 AND INSTALLED A REPAIRED UNIT P/N 738384-33 S/N 200207059. PERFORMED AN OPS/LEAK CHECK WITH NO DEFECTS NOTED. ALL WORK WAS PERFORMED IAW THE MM 21-51-00 AND 12-10-01.

Part: DAU — INOPERATIVE (RT ENGINE) · airframe 5,091 hrs · 3,005 cycles

3 MINUTES AFTER TAKEOFF, THROTTLES IN CRUISE DETENT, RT ENGINE FIRE CAS MESSAGE CAME ON FOR ABOUT 10 SEC AND THEN CLEARED. DAU 2 MISCOMPARE ENGINE AMBER CAS MESSAGE CAME ON AT THE SAME TIME. REMOVED AND REPLACED DAU 2 WITH REPAIRED UNIT. OPS CHECK GOOD. WORK DONE IAW 750 MM CHAPTER 31-41-00.

Part: FLAP SYSTEM — MALFUNCTIONED (TE FLAPS) · airframe 4,872 hrs · 2,870 cycles

ON FINAL APPROACH AMBER CAS MESSAGE FLAP FAIL WHEN FLAPS/SLATS SELECTED TO 5'. ABNORMAL PROCEDURES COMPLETED AND FLAPS FAILED TO EXTEND BEYOND ABOUT 2' WITH SLATS EXTENDED. OPERATED FLAP SYSTEM THROUGH NUMEROUS CYCLES PERFORMED CONTINUITY CHECKS & GROUND CHECKS & CHECKED ALL RESOLVER VOLTAGES WITH FLAP BREAKOUT BOX ALL CHECKS & VOLTAGES FOUND TO BE GOOD & WITHIN LIMITS NO OTHER DEFECTS OR FAULTS FOUND SYSTEM OPS CHECKED GOOD IAW CE750 MM 27-55-00

Part: WHEEL — VIBRATES (NLG) · airframe 4,625 hrs · 2,736 cycles

SEVERE NOSEWHEEL VIBRATION ON TAKEOFF ROLL FOLLOWED BY ABORT BELOW 80KTS. NO VISIBLE DEFECTS OR DAMAGE TO NOSE GEAR.INSPECTED A/C. REPLACED BOTH NOSE WHEEL ASSYS ALL WORK IAW MM 32-41-01.

Part: CONNECTOR — DIRTY (FIRE LOOP) · airframe 4,355 hrs · 2,565 cycles

ON CLIMBOUT, -DAU MISCOMPARE- FOLLOWED BY -ENGINE FIRE R- MESSAGE. MESSAGE WAS INTERMITTENT FOR ABOUT A 10 SECOND PERIOD THEN DISAPPEARED. NO OTHER FIRE INDICATION WERE PRESENT. INSPECTED ENGINE AND FIRE LOOP WITH NO FAULTS NOTED. CLEANED FIRE LOOP CONNECTOR AS A PRECAUTIONARY MEASURE. FIRE DETECTION SYSTEM OPS CHECK GOOD IAW CE750 MM CHAP 26-10-01. NO FAULTS NOTED AT THIS TIME. RAN ENGINES FOR .5 HOUR WITH NO DAU OR FIRE CAS MESSAGES.

Part: ODOR — DETECTED (CABIN) · airframe 4,105 hrs · 2,413 cycles

DURING FLIGHT, A STRONG BURNING ODOR SMELLED THROUGH OUT AIRPLANE ON SHORT FINAL AND TAXI IN. THE ODOR APPEARS TO BE COMING FROM THE PACS. ITEM IS UNDER INVESTIGATION.

Part: SMOKE — DETECTED (CABIN) · airframe 3,502 hrs · 2,078 cycles

SMOKE OBSERVED IN CABIN AND COCKPIT SHORTLY AFTER TAKEOFF, SMOKE DISSIPATED AFTER POWER WAS REDUCED TO REMAIN IN PATTERN FOR LANDING.

Part: COALESCER BAG — DIRTY (CABIN AIR) · airframe 3,502 hrs · 2,077 cycles

CABIN AND COCKPIT FILLED WITH SMOKE AFTER TAKEOFF. SMOKE DISIPATED WITHIN 2 MINUTES. REMOVED COALESCER SOCK AND REPLACED WITH NEW UNIT IAW CESSNA 750 MM CHAPTER 21-20-40. PERFORMED ENGINE RUN FOR 30 MINUTES AND SYSTEM OPS CHECKED GOOD, NO SMOKE FOUND.

Part: WARNING LIGHT — ILLUMINATED (LANDING GEAR) · airframe 2,202 hrs · 1,272 cycles

DURING DESCENT, PASSING THROUGH 14000 FT, AT 345 KIAS, AT 3000 FPM, GO TRANSIENT GEAR UNLOCK-FELT NOSE GEAR UNLOCK AND DROP MOMENTARILY BEFORE RE-LOCKING, THE REST OF FLIGHT NORMAL. JACKED AIRCRAFT AND PERFORMED GEAR SWING, CHECKED UPLOCK HOOK AND SWITCH RIGGINGS, CHECKED GOOD IAW CESSNA 750 MM CHAPTER 32-30-05. CHECKED THE BLEED RATE OF LANDING GEAR SYSTEM, SYSTEM OPS CHECKS GOOD IAW CESSNA 750 M/M CHAPTER 32-00-00.

Part: VALVE — MALFUNCTIONED (WING TANK) · airframe 1,089 hrs · 628 cycles

WHILE IN LEVEL CRUISE FLIGHT AT 29,000 FT THE (WING TANK O'FULL L-R) AMBER CAS MESSAGE ILLUMINATED. BOTH WING TANKS OBSERVED TO BE DUMPING FUEL FOR 2 MINUTES. - TROUBLESHOT AND FOUND BOTH WING VENT VALVES INOP. REMOVED AND REPLACED LEFT AND RIGHT WING VENT VALVES, OPS CHECK AND LEAK CHECK GOOD. WORK PERFORMED I.A.W. 750 M.M. CHAPTER 28-10-04.

Part: CLAMP — LEAKING (FUEL DIST) · airframe 1,036 hrs · 589 cycles

WHILE IN CRUISE AT FL290 THE "WING O'FULL L" CAS MESSAGE CAME ON. ABOUT 30 SECONDS LATER WE GOT THE SAME MESSAGE FOR THE RIGHT WING, FUEL WAS NOTED TO BE DUMPING OUT OF BOTH WINGS. AFTER WE SHUT OFF THE CENTER TANK TRANSFER SWITCHES IT TOOK ABOUT A MINUTE FOR THE RIGHT WING TO STOP DUMPING, THE LEFT WING CONTINUED TO DUMP FUEL FOR AN ADDITIONAL 11 MINUTES BEFORE FINALLY STOPPING, LOST ALMOST 300 LBS. OF FUEL FROM THE LEFT SIDE. - INSPECTED BOTH LEFT AND RIGHT WING FUEL VENT SYSTEMS, PRESSURIZED FUEL VENT PLUMBING NOTED TOW WIGGINS CLAMPS UNSEAT AND LEAKING. SECURED UNSEATED WIGGINS CLAMPS, LEAK CHECKED GOOD, WORK PERFORMED IAW CHAPTER 28-10-04 OF THE CITATION 750 MM.