# Service difficulty reports: Williams FJ44-4A

A list on [Williams FJ44-4A](https://openairdocs.org/engine/williams-fj44-4a.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 77 reports

- [SDR QREA202610140007](https://openairdocs.org/sdr/QREA202610140007.md): Alternator · overheated · Oct 7, 2026 · N5JM · Cessna 525C · AC Generator-Alternator
  > RIGHT AC GENERATOR FAILED IN FLIGHT WHICH CAUSED RH WINDSHEILD HEAT FAIL. AIRCRAFT WAS ENROUTE TO TXKF OCEANING FLIGHT FROM KHPN. EXITED ICING CONDITIONS AND RETURNED TO BASE AT KDXR
- [SDR DBCA202608190001](https://openairdocs.org/sdr/DBCA202608190001.md): Gearbox · contaminated · Aug 6, 2026 · N279AH · Pilats PC24 · Accessory Gearboxes
  > RT EGINE ROLL BACK ON CLIMB OUT. EMERGENCY DECLARED BY CREW, AIRCRAFT RETURNED TO DEPARTURE AIRPORT (135 MED FLIGHT) PATIENT ALREADY DROPPED OFF, ONLY 2 FLIGHT NURSES AND 2 CREW ON BOARD. ONSITE INVESTIGATION BY HOME BASE MX TEAM FOLLOWING DAY REVEALED EXCESS
- [SDR WI5R2025063000437](https://openairdocs.org/sdr/WI5R2025063000437.md): Compressor · damaged · Jun 27, 2025 · N503TF · Cessna 525C · Turbine Engine Compressor Section
  > ENGINE MODEL FJ44-4A, S/N 211135, FROM AIRCRAFT N503TF), WAS RETURNED TO THE REPAIR STATION FOR UNSCHEDULED REPAIR. OPERATOR STATED HE DETECTED A BLEED ODOR DURING CLIMB, PROMPTING A RETURN TO AIRPORT. LANDING UNEVENTFUL. TROUBLESHOT ISSUE WITH TECH, REPORTE
- [SDR 2024FA0000722](https://openairdocs.org/sdr/2024FA0000722.md): Spinner · damaged · Sep 18, 2024 · N909DP · Cessna 525 · Engine (Turbine/Turboprop)
  > THE NUMBER #1 ENGINE SPINNER P.N. 122358 BREAKING AND SEPARATING IN FLIGHT RESULTING WITH ENGINE INGESTING THE BROKEN PIECES AND RESULTING WITH A HOLE IN THE AIR INLET COWLING P.N. 6352129-9.
- [SDR 2024FA0000526](https://openairdocs.org/sdr/2024FA0000526.md): Start Button · deactivated · Jun 20, 2024 · N417NE · Cessna 525C · Engine Controls
  > FLIGHT CREW REPORTED THAT THE RIGHT ENGINE SHUTDOWN DURING THEIR TAKEOFF ROLL. CREW ABORTED THEIR TAKEOFF AND TAXIED THE AIRCRAFT BACK TO A LOCATION TO FURTHER EVALUATE THE RIGHT ENGINE'S CONDITION. CREW CONTACTED JET OUT'S MAINTENANCE DEPARTMENT, IT WAS THEN
- [SDR 2024FA0000215](https://openairdocs.org/sdr/2024FA0000215.md): Bearing · failed · Mar 11, 2024 · N687JL · Cessna 525C · AC Generator-Alternator
  > ALTERNATOR P/N 9914777-2 HAD A MAIN BEARING FAIL. THIS IS AN ON CONDITION PART WITH NO INSPECTION OR OVERHAUL LIMITS. ALTERNATOR LASTED ONLY 1615 HOURS BEFORE FAILURE OF THE MAIN BEARING. THE MAIN BEARING CAME APART UNDER NORMAL OPERATING CONDITIONS AND CAUSED
- [SDR 6CBA2024012625001](https://openairdocs.org/sdr/6CBA2024012625001.md): Ahrs · faulted · Jan 25, 2024 · N269AF · Pilats PC24 · Auto Flight System
  > AFTER DEPARTING PDK THE CREW RECEIVED MULTIPLE CAS MESSAGES, AP 1&2 FAIL, TF 1&2 FAIL, FD 1&2 FAIL, AOC UPLINK FAIL, AND AT FAIL. THE CREW DECIDED TO RETURN TO PDK. TECHNICIANS FOUND AHRS VERTICAL SPEED INERTIAL RATE OUT OF TOLERANCE AT -57.0 FT/MIN. THEY RE
- [SDR DBCA2024010800001](https://openairdocs.org/sdr/DBCA2024010800001.md): Transducer · failed · Jan 8, 2024 · N279AH · Pilats PC24 · Engine Oil Indicating System
  > 1) DURING DESCENT ON FLIGHT TO ELM CREW RECEIVED RH ENG HIGH OIL NOTICE. 2) CREW PERFORMED ENG INFLIGHT SHUTDOWN ON RH ENGINE. 3) CREW DECLARED AN EMERGENCY AND LANDED AT ELM. 4) MTN COMPLIED WITH FHDB AND WI DOWNLOADS. 5) MTN REMOVED AND REPLACED RH OIL PRESS
- [SDR 6CBA2023082523001](https://openairdocs.org/sdr/6CBA2023082523001.md): Actuator · faulted · Aug 24, 2023 · N225AF · Pilats PC24 · Trailing Edge Flap Control System
  > HE CREW DEPARTED FROM KAVL AND WAS IN CRUISE TO KFXE WHEN THEY RECEIVED A FLAP FAIL CAS MESSAGE WITH THE FLAPS AT THE ZERO DEGREE POSITION. THE CREW DIVERTED TO KFLL. ATC HAD DECLARED AN EMERGENCY, AND THE CREW LANDED WITHOUT ISSUE. TECHNICIANS TROUBLESHOT THE
- [SDR 9PMA2023092600568](https://openairdocs.org/sdr/9PMA2023092600568.md): Buss · false indication · Aug 3, 2023 · N59JN · Cessna 525C · Instrument Panel
  > ON CLIMB OUT, DCU A, DCU B, AP PITCH CONTROL FAIL, IFIS MISCOMPARE AND AP FAIL. UPON ARRIVAL OF MX NO FAULT WAS FOUND. GAINED ACCESS TO THE FAULT HISTORY AND VERIFIED THERE WAS A DCU CHANNEL B FAULT IN THE AIR WITH A FDR-1 MODULES BUS INOP MESSAGE PRESEN
- [SDR 6CBA2002306070001](https://openairdocs.org/sdr/6CBA2002306070001.md): Pitot System · shorted · Jun 3, 2023 · N124AF · Pilats PC24 · Auto Flight System Wiring
  > THE FLIGHT CREW DEPARTED KIXA WITH A DESTINATION OF KPBI. DURING CLIMB, THE FLIGHT CREW REPORTED SMOKE IN COCKPIT COMING FROM GASPER VENT ON PILOT'S SIDE. ALSO NOTED AN ECB TRIP CYAN CAS STBY PS HEAT FAIL AMBER CAS. FILES WERE DOWNLOADED AND SENT TO PILATUS.
- [SDR 6CBA202303310002](https://openairdocs.org/sdr/6CBA202303310002.md): Unknown · unknown · Mar 31, 2023 · N124AF · Pilats PC24 · Landing Gear Brake System
  > DURING FLIGHT FROM KPSM TO KACK, THE CREW REPORTED A YELLOW CAUTION MESSAGE, "MAIN BRAKE FAIL." THE CREW DIVERTED BACK TO KPSM AND LANDED WITHOUT INCIDENT. TECHNICIANS DOWNLOADED ACMF AND FHDB FILES TO SEND TO PILATUS FOR ANALYSIS IAW PILATUS AMM PC24-A-E45-
- [SDR 6CBA202303300001](https://openairdocs.org/sdr/6CBA202303300001.md): Unknown · unknown · Mar 30, 2023 · N225AF · Pilats PC24 · Engine (Turbine/Turboprop)
  > ACFT CLIMBING OUT OF 15-16,000 FT WHEN CREW HEARD A LOUD BANG & EXPERIENCED VIBRATION WITH NOTICED A SIGNIFICANT LOSS OF THRUST FROM RT ENG, FOLLOWED BY A BRIEF HIGH ITT INDICATION & BRIEF SMOKY ODOR, WITH R FADEC FAIL & R OIL PRESS LOW CAUTION MESSAGES. A LA
- [SDR 6CBA2022111422217](https://openairdocs.org/sdr/6CBA2022111422217.md): Heater · smoke · Nov 14, 2022 · N251AF · Pilats PC24 · Heating System
  > PROBLEM: DURING A FLIGHT FROM KILG TO KPSM THE FLIGHT CREW ENCOUNTERED "SMOKE IN COCKPIT/CABIN, DISSIPATED AFTER SECURING CABIN HEAT." THEY DECLARED AN EMERGENCY AND DIVERTED TO KPNE, LANDING WITHOUT INCIDENT. RESOLUTION: THE FLIGHT CREW DISCREPANCY " SMOKE I
- [SDR DBCA202207130006](https://openairdocs.org/sdr/DBCA202207130006.md): Nozzle · detached · Jul 13, 2022 · N279AH · Pilats PC24 · Engine (Turbine/Turboprop)
  > MANUFACTURER INDICATES A FAILED BRAZE WELD ON THE #1 LPT NOZZLE GUIDE VANE WHICH ALLOWED THE NOZZLE TO FLEX AND CONTACT THE #1 LPT DISK. THIS DAMAGED THE DISK SENDING DEBRIS THROUGH THE REST OF THE TURBINE SECTION CAUSING DAMAGE THROUGHOUT. ENGINEERING IS IN
- [SDR 6CBA2022042022210](https://openairdocs.org/sdr/6CBA2022042022210.md): Heater · faulty · Apr 20, 2022 · N251AF · Pilats PC24 · Heating System
  > PROBLEM: DURING DEPARTURE FROM KJWN THE FLIGHT CREW ENCOUNTERED THE FOLLOWING:" SMOKE NOTED IN CABIN. APPEARED TO COME FROM AREA JUST FORWARD OF LUGGAGE AREA". THE AIRCRAFT DIVERTED TO KPIT AND LANDED WITHOUT INCIDENT. RESOLUTION: CONTRACT MAINTENANCE WAS CALL
- [SDR 2021F00371](https://openairdocs.org/sdr/2021F00371.md): Switch · active · Dec 28, 2021 · N581HC · Cessna 525C · Engine Fuel and Control
  > EN ROUTE TO LAS FROM SLC WITH THE PATIENT ON BOARD. LEVELED OFF FL230 AND A MINUTE LATER THE FUEL PRESSURE LOW L INDICATOR CAME ON. WE (DAVID HALE AND SIC RICK JONES) FOLLOWED THE CHECKLIST WITH THE USE OF THE L STANDBY BOOST PUMP AND RETURNED TO SLC.”
- [SDR 4LSA2021052402081](https://openairdocs.org/sdr/4LSA2021052402081.md): Engine · failed · May 24, 2021 · N601JL · Cessna 525C · Engine (Turbine/Turboprop)
  > DURING TAKEOFF CLIMB OUT OF FLYING CLOUD AIRPORT (FCM), THE FLIGHT CREW HEARD A METAL GRINDING NOISE FOLLOWED BY HIGH INLET TURBINE TEMPERATURE (ITT) INDICATION AND A OIL FILTER BYPASS INDICATION FOR THE RIGHT ENGINE. FLIGHT CREW ELECTED TO SHUT RIGHT HAND ENG
- [SDR 2021FA0000080](https://openairdocs.org/sdr/2021FA0000080.md): Generator · burned · Mar 10, 2021 · N1886 · Cessna 525C · AC Generator-Alternator
  > REMOVED RH ENGINE AUX GENERATOR (AC ALTERNATOR) P/N 9914777-2 (94495-1), S/N 128 DUE TO WINDING RESIN MELTING FROM ALTERNATOR, RESIN SLINGING FROM INTERNAL FAN AND BEARING DRAG. UNIT REMOVED WITH 231.2HRS/144 LANDINGS SINCE OVERHAUL. PREVIOUS ALTERNATOR FAILUR
- [SDR AMCR20210318002](https://openairdocs.org/sdr/AMCR20210318002.md): Alternator · melted · Mar 9, 2021 · N257DV · Cessna 525C · AC Generation System
  > BEFORE FLIGHT, ON INITIAL ENGINE RUNS, IT WAS NOTICED THAT THE LEFT ALTERNATOR FAIL CAS MESSAGE WAS ILLUMINATED. UPON INSPECTION THE CREW REPORTED SMELLING SMOKE FUMES.THE ALTERNATOR WAS REMOVED AND REVEALED THAT AN INTERNAL SHORT HAD OCCURRED CAUSING THE FAIL
- [SDR 6CBA2020112820201](https://openairdocs.org/sdr/6CBA2020112820201.md): Windshield · cracked · Nov 28, 2020 · N125AF · Pilats PC24 · Flight Compartment Windows
  > PROBLEM DURING PREFLIGHT WHILE AT KSUA THE FLIGHT CREW REPORTED, "RT FRONT WINDSHIELD CRACKED". RESOLUTION: THE AIRCRAFT/WINDSHIELD WAS INSPECTED AND FOUND SAFE FOR A FERRY FLIGHT ON 11/30/2020 TO KPDK WHERE THE WINDSHIELD COULD BE REPLACED. THE FERRY FLIGHT
- [SDR WI5R2020101400001](https://openairdocs.org/sdr/WI5R2020101400001.md): Rotor · damaged · Oct 14, 2020 · N81RC · Cessna 525C · Turbine Engine Compressor Section
  > AIRCRAFT OPERATOR REPORTED THE NR 1 ENGINE ON N81RC (525C-0217) MADE AN UNUSUAL NOISE DURING ENGINE SPOOL-DOWN. OPERATOR REPORTED NO ENGINE OPERATIONAL ISSUES, SYMPTOMS, OR OTHER ANOMALIES DURING THE PREVIOUS FLIGHT. DURING A SUBSEQUENT BORESCOPE INSPECTION
- [SDR WI5R2020100100001](https://openairdocs.org/sdr/WI5R2020100100001.md): Rotor · damaged · Sep 29, 2020 · N159WG · Cessna 525C · Turbine Engine Compressor Section
  > FLIGHT CREW OF N159WG (525C-0216) REPORTED THAT ITT HAS GRADUALLY INCREASED ON RT ENGINE SERIAL NUMBER 211444 OVER THE PAST THREE MONTHS, RECENTLY TOUCHING THE RED BAND OF THE ITT DISPLAY DURING TAKEOFF. SUBSEQUENT BORESCOPE INSPECTION REVEALED DAMAGE TO HIGH
- [SDR WI5R2020082400001](https://openairdocs.org/sdr/WI5R2020082400001.md): Rotor · damaged · Aug 21, 2020 · N313GL · Cessna 525C · Turbine Engine Compressor Section
  > REVIEW OF HISTORICAL, ROUTINE FADEC DOWNLOADS PERFORMED BY THE ENGINE MANUFACTURER REVEALED A SLIGHT SHIFT IN INTER-TURBINE TEMPERATURE (ITT), OCCURRING APPROXIMATELY 25 HOURS PRIOR TO THE MOST-RECENT FADEC DOWNLOAD PERFORMED DURING A ROUTINE CHECK 1 & CHECK 2
- [SDR WI5R2020082400002](https://openairdocs.org/sdr/WI5R2020082400002.md): Rotor · damaged · Aug 21, 2020 · N313GL · Cessna 525C · Turbine Engine Compressor Section
  > REVIEW OF HISTORICAL, ROUTINE FADEC DOWNLOADS PERFORMED BY THE ENGINE MANUFACTURER REVEALED A SLIGHT SHIFT IN INTER-TURBINE TEMPERATURE (ITT), OCCURRING APPROXIMATELY 25 HOURS PRIOR TO THE MOST-RECENT FADEC DOWNLOAD PERFORMED DURING A ROUTINE CHECK 1 & CHECK 2
- [SDR 6CBA2020080732195](https://openairdocs.org/sdr/6CBA2020080732195.md): Controller · failed · Aug 3, 2020 · N126AF · Pilats PC24 · Landing Gear Brake System
  > THE FLIGHT CREW REPORTED AFTER LANDING, MAIN BRAKE FAIL ON LANDING WITH ECB TRIP DISPLAYED. THE BRAKE MOTOR CONTROLLER WAS FOUND DEFECTIVE. REMOVED AND REPLACED IAW AMM A-E52-10-00B-00A-520A-A AND A-E32-40-00B-00A-720A-A. PERFORMED FUNCTIONAL TEST IAW A-E32-
- [SDR AMCR20200727021](https://openairdocs.org/sdr/AMCR20200727021.md): Alternator · shorted · Jul 22, 2020 · N257DV · Cessna 525C · AC Generator-Alternator
  > UPON TAXI TO HOME BASE HANGAR, CREW REPORTED A AMBER RH ALTERNATOR FAIL CAS MESSAGE. GROUND CREW SAW WHITE SMOKE COMING FROM RH ENGINE COWL. AN INSPECTION REVEALED THE AC ALTERNATOR HAD INTERNALLY SHORTED AND MELTED SOME OF ITS WINDINGS. PROCEDURES FOR CESSNA
- [SDR WI5R2020070800001](https://openairdocs.org/sdr/WI5R2020070800001.md): Compressor Blade · damaged · Jul 8, 2020 · N2250G · Cessna 525C · Turbine Engine Compressor Section
  > FOLLOWING INCORPORATION OF SERVICE BULLETIN FJ44-72-127 (1ST LOW PRESSURE TURBINE NOZZLE UPGRADE) ON ENGINE, POST-MAINTENANCE VIBRATION SURVEY GROUND RUNS REVEALED N1 SPOOL VIBRATION LEVELS ABOVE LINE MAINTENANCE MANUAL LIMITS. ATTEMPTS TO TRIM-BALANCE THE EN
- [SDR WI5R202005270002](https://openairdocs.org/sdr/WI5R202005270002.md): Rotor · fractured · May 22, 2020 · Cessna 525C · Turbine Engine Compressor Section
  > CUSTOMER REPORTED AN UNUSUAL NOISE DURING THROTTLE TRANSITION TO POWER. ALL ENGINE INDICATIONS WERE NORMAL. ON-WING BORESCOPE INSPECTION OF LEFT-HAND ENGINE SERIAL NUMBER (ESN) 211417 REVEALED DAMAGE TO 3RD-STAGE INTERMEDIATE COMPRESSOR ROTOR BLADES AND ONE
- [SDR WI5R2020032000000](https://openairdocs.org/sdr/WI5R2020032000000.md): Rotor · damaged · Mar 18, 2020 · N888KJ · Cessna 525C · Turbine Engine Compressor Section
  > DURING INITIAL TAKEOFF ROLL, PILOT NOTED RUMBLING NOISE AND A SHUDDER IN THE FOOT PEDALS WITH NO ABNORMAL INSTRUMENT INDICATIONS. PILOT ABORTED TAKEOFF AND RETURNED TO RUNWAY END. PILOT ATTEMPTED SECOND TAKEOFF WITH NORMAL ENGINE INDICATIONS. AT 1,200 FEET,
- [SDR WI5R202003060001](https://openairdocs.org/sdr/WI5R202003060001.md): Rotor · fractured · Mar 5, 2020 · Cessna 525C · Turbine Engine Compressor Section
  > SUBSEQUENT TO THE 1ST LPT NOZZLE FIELD REPLACEMENT FOR SERVICE BULLETIN FJ44-72-127, THE ENGINE DID NOT PASS THE REQUIRED VIBRATION SURVEY FOR 1E LP. BORESCOPE INSPECTION REVEALED A MISSING 3RD STAGE IP ROTOR BLADE AND A DAMAGED HPC ROTOR. DISASSEMBLY OF THE
- [SDR WI5R20200203001](https://openairdocs.org/sdr/WI5R20200203001.md): Rotor · fractured · Feb 3, 2020 · Cessna 525C · Turbine Engine Compressor Section
  > DURING POST FDU SWAP RUN ON THE ENGINE, TECHNICIANS HEARD A "BANG", FOLLOWED BY BLACK SMOKE FROM THE EXHAUST, NO INDICATION FLUCTUATIONS WERE NOTED. THE SUPPORTING SERVICE CENTER PERFORMED BORESCOPE INSPECTION AND FOUND MISSING 3RD STAGE IP ROTOR BLADE. DIS
- [SDR WI5R20200117001](https://openairdocs.org/sdr/WI5R20200117001.md): Rotor · fractured · Jan 16, 2020 · N523HV · Cessna 525C · Turbine Engine Compressor Section
  > DURING OPERATION, A LOUD BANG AND INCREASE IN ITT WERE OBSERVED. FIELD BORESCOPE INVESTIGATION IDENTIFIED SEVERAL MISSING 3RD STAGE IP ROTOR BLADES. DISASSEMBLY OF THE ENGINE CONFIRMED THAT FIVE OF THE 3RD STAGE IPC ROTOR BLADES WERE MISSING.
- [SDR WI5R201901160001](https://openairdocs.org/sdr/WI5R201901160001.md): Rotor · fractured · Jan 15, 2020 · N124AF · Pilats PC24 · Turbine Engine Compressor Section
  > DURING FIELD BORESCOPE INSPECTION FOR ITT SPLIT AND HIGH-PITCH WHINE NOISE, DAMAGE TO THE HPC ROTOR, 3RD STAGE STATOR VANE, AND 3RD STAGE IP ROTOR VANES WERE DISCOVERED. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WERE MISSI
- [SDR WI5R20200110001](https://openairdocs.org/sdr/WI5R20200110001.md): Rotor · fractured · Jan 10, 2020 · N544TX · Cessna 525C · Turbine Engine Compressor Section
  > DURING FIELD TROUBLESHOOTING FOR A REPORTED ENGINE VIBRATION, BORESCOPE INSPECTION REVEALED POTENTIAL IP BLADE LIBERATION. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR WI5R20200108001](https://openairdocs.org/sdr/WI5R20200108001.md): Rotor · fractured · Jan 7, 2020 · N787EP · Cessna 525C · Turbine Engine Compressor Section
  > DURING FIELD BORESCOPE INSPECTION FOR N1 LAG AND ITT INCREASE AT T.O., A 3RD STAGE IP ROTOR BLADE WAS DISCOVERED MISSING. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR WI5R20191219001](https://openairdocs.org/sdr/WI5R20191219001.md): Rotor · fractured · Dec 19, 2019 · N414KU · Cessna 525C · Turbine Engine Compressor Section
  > DURING TAKEOFF AND CLIMB, SPARKS WERE REPORTED COMING FROM THE TAILPIPE. FIELD BORESCOPE INVESTIGATION IDENTIFIED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED THAT THREE OF THE 3RD STAGE IPC ROTOR BLADES WERE MISSING.
- [SDR WI5R20191218001](https://openairdocs.org/sdr/WI5R20191218001.md): Rotor · fractured · Dec 17, 2019 · N124AF · Pilats PC24 · Turbine Engine Compressor Section
  > DURING FIELD BORESCOPE INSPECTION FOR INCREASED ITT DURING CLIMB, SEVERAL IPC BLADES WERE DISCOVERED MISSING. DISASSEMBLY OF THE ENGINE CONFIRMED THAT THREE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR 6CBA2019121219188](https://openairdocs.org/sdr/6CBA2019121219188.md): Windscreen · cracked · Dec 3, 2019 · N124AF · Pilats PC24 · Flight Compartment Windows
  > DURING CRUISE FLIGHT FROM KPSM TO KGRR AT 15000 FEET, THE FLIGHT CREW REPORTED "LEFT SIDE FRONT WINDSHIELD CRACKED". THE AIRCRAFT DIVERTED BACK TO KPSM AND LANDED SAFELY WITHOUT INCIDENT. THE LH FRONT WINDSHIELD WAS REMOVED AND REPLACED IAW PILATUS AMM PC24-A
- [SDR WI5R201910190001](https://openairdocs.org/sdr/WI5R201910190001.md): Blade · fractured · Oct 17, 2019 · N910SS · Cessna 525C · Turbine Engine Compressor Section
  > TREND DATA INDICATED A ABRUPT SHIFT IN ITT AND N2 PARAMETERS. FIELD BORESCOPE INVESTIGATION IDENTIFIED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING. THE ROTOR (P/N 119345 S/
- [SDR WI5R2019082200001](https://openairdocs.org/sdr/WI5R2019082200001.md): Blade · fractured · Aug 21, 2019 · N267JL · Cessna 525C · Turbine Engine Compressor Section
  > WHILE TROUBLE SHOOTING FOR A REPORTED UNUSUAL VIBRATION IN FLIGHT, A BORESCOPE INSPECTION DISCOVERED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR WI5R2019080100001](https://openairdocs.org/sdr/WI5R2019080100001.md): Blade · fractured · Aug 1, 2019 · N881CW · Cessna 525C · Turbine Engine Compressor Section
  > WHILE TROUBLE SHOOTING FOR ITT AND N2 SPLITS WITH THE SISTER ENGINE, A BORESCOPE INSPECTION FOUND DAMAGE AND A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE REVEALED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR CA190718002](https://openairdocs.org/sdr/CA190718002.md): Windshield · damaged · Jul 16, 2019 · Pilats PC24 · Flight Compartment Windows
  > (CAN) FROM PILOT: DURING OUR CLIMB TO CRUISING ALTITUDE (FL350) WE HEARD A LOUD BANG THROUGH FLIGHT LEVEL 220, AFTER LOOKING AT OUR PRESSURIZATION AND NOTICED THAT IT WAS FINE, WE SAW THAT THE LEFT HAND WINDSHIELD WAS SHATTERED, AS WE WERE FLYING IN NIGHT COND
- [SDR WI5R201907100001](https://openairdocs.org/sdr/WI5R201907100001.md): Blade · fractured · Jul 8, 2019 · Cessna 525C · Turbine Engine Compressor Section
  > WHILE TROUBLE SHOOTING FOR AN UNUSUAL NOISE DURING ENGINE SHUT DOWN, A BORESCOPE INSPECTION FOUND DAMAGE AND A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR 2019FA0000224](https://openairdocs.org/sdr/2019FA0000224.md): Blade · severed · Jul 3, 2019 · N881CW · Cessna 525C · Turbine Engine Compressor Section
  > ON 02-JUL-2019,CAPTAIN REPORTED THE RH ENGINE(SN 211516) OPERATION PARAMETERS WERE ABNORMAL, THE ITT READING ON RT WAS SIGNIFICANTLY HIGHER THAN LT. ALSO RT N2% WAS 0.7% HIGHER THAN LH. THESE SYMPTOMS WERE THE SAME AS THE LAST ENGINE CHANGE ON LT ENGINE IN AUG
- [SDR WI5R201906270001](https://openairdocs.org/sdr/WI5R201906270001.md): Blade · missing · Jun 27, 2019 · N701AL · Cessna 525C · Turbine Engine Compressor Section
  > DURING TROUBLE SHOOTING FOR A REPORTED "WHINE" NOISE WHEN N1 IS ABOVE 71%, A FIELD BORESCOPE INSPECTION DISCOVERED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR WI5R2019062700008](https://openairdocs.org/sdr/WI5R2019062700008.md): Blade · damaged · Jun 27, 2019 · N7152M · Cessna 525C · Turbine Engine Compressor Section
  > WHILE CLIMBING OUT ON A RECENT FLIGHT, THE CREW REPORTED HEARING A BANG FOLLOWED BY AN ENGINE VIBRATION AT A POWER SETTING OF APPROX. 90% N1 ALONG WITH A SQUEALING IN FLIGHT. A POST FLIGHT BORESCOPE INSPECTION CONFIRMED DAMAGE TO MULTIPLE 3RD STAGE IPC BLADES
- [SDR WI5R201906210001](https://openairdocs.org/sdr/WI5R201906210001.md): Blades · fractured · Jun 21, 2019 · N525KJ · Cessna 525C · Turbine Engine Compressor Section
  > DURING TAKE-OFF ROLL (APPROXIMATELY 4 SECONDS AFTER T.O. POWER SETTING ACHIEVED), A LOUD NOISE WAS HEARD AND THE AIRCRAFT VEERED TO THE LEFT (AIRCRAFT SPEED ~25KNOTS). THE PILOT IMMEDIATELY REDUCED POWER AND NOTED THAT THE LEFT ENGINE’S (ESN 211323) ITT WAS I
- [SDR WI5R20190621002](https://openairdocs.org/sdr/WI5R20190621002.md): Blades · fractured · Jun 21, 2019 · N760PT · Cessna 525C · Turbine Engine Compressor Section
  > DURING TROUBLE SHOOTING FOR AN UNUSUAL NOISE DURING FLIGHT, A FIELD BORESCOPE INSPECTION FOUND DAMAGE TO THE HPC ROTOR AND A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE REVEALED THAT ONE OF THE 3RD STAGE IPC ROTOR BLADES WAS MISSING.
- [SDR WI5R20190614001](https://openairdocs.org/sdr/WI5R20190614001.md): Rotor · fractured · Jun 12, 2019 · Cessna 525C · Turbine Engine Compressor Section
  > DURING ENGINE SPOOL DOWN, CREW NOTED A SCRAPPING NOISE. AFTERWARDS, N1 WAS DIFFICULT TO ROTATE BY HAND. FIELD BORESCOPE INSPECTION FOUND DAMAGE TO THE HPC ROTOR AND A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED FIELD FINDINGS AND O

Next page: https://openairdocs.org/engine/williams-fj44-4a/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE engine_model_key = 'FJ444A'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/williams-fj44-4a/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.