# Williams FJ44-4A - Type: Engine model (FAA registry) - Registry code: 66011 - Manufacturer (registry): WILLIAMS - Model: FJ44-4A - Engine type: Turbo-fan - Power: 3,443 lb thrust - Data sheet: [TCDS E3GL](https://openairdocs.org/tcds/E3GL) (OpenAirDocs) - Holder: Williams International Company L.L.C. - Installed in: 353 registered aircraft - Page: https://openairdocs.org/engine/williams-fj44-4a Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (353, first 50) - [N100Y](https://openairdocs.org/aircraft/N100Y): [Vb Ultra Transportation LLC](https://openairdocs.org/faa-owner/VB%20ULTRA%20TRANSPORTATION%20LLC), [Lake Oswego, OR](https://openairdocs.org/faa-place/OR/Lake%20Oswego), built 2015, S/N 525C0204 - [N100ZT](https://openairdocs.org/aircraft/N100ZT): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2022, S/N 525C0392 - [N109CA](https://openairdocs.org/aircraft/N109CA): [Jaf Aviation LLC](https://openairdocs.org/faa-owner/JAF%20AVIATION%20LLC), [Englewood, CO](https://openairdocs.org/faa-place/CO/Englewood), built 2012, S/N 525C-0112 - [N10AU](https://openairdocs.org/aircraft/N10AU): [Auburn University](https://openairdocs.org/faa-owner/AUBURN%20UNIVERSITY), [Auburn, AL](https://openairdocs.org/faa-place/AL/Auburn), built 2026, S/N 525C0493 - [N10GU](https://openairdocs.org/aircraft/N10GU): [Business Insurance Group LLC](https://openairdocs.org/faa-owner/BUSINESS%20INSURANCE%20GROUP%20LLC), [Montgomery, AL](https://openairdocs.org/faa-place/AL/Montgomery), built 2016, S/N 525C0210 - [N111BP](https://openairdocs.org/aircraft/N111BP): [Alabama Farmers Cooperative Inc](https://openairdocs.org/faa-owner/ALABAMA%20FARMERS%20COOPERATIVE%20INC), [Decatur, AL](https://openairdocs.org/faa-place/AL/Decatur), built 2023, S/N 525C0431 - [N1150M](https://openairdocs.org/aircraft/N1150M): [Bakko Aviation LLC](https://openairdocs.org/faa-owner/BAKKO%20AVIATION%20LLC), [Glenwood, MN](https://openairdocs.org/faa-place/MN/Glenwood), built 2012, S/N 525C0101 - [N116TA](https://openairdocs.org/aircraft/N116TA): [Cbp Air Logistics LLC](https://openairdocs.org/faa-owner/CBP%20AIR%20LOGISTICS%20LLC), [Statham, GA](https://openairdocs.org/faa-place/GA/Statham), built 2012, S/N 525C0116 - [N117VK](https://openairdocs.org/aircraft/N117VK): [Falcon Aircraft Leasing LLC](https://openairdocs.org/faa-owner/FALCON%20AIRCRAFT%20LEASING%20LLC), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 2018, S/N 117 - [N11AK](https://openairdocs.org/aircraft/N11AK): [Kmg LLC](https://openairdocs.org/faa-owner/KMG%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 2016, S/N 525C0236 - [N11GP](https://openairdocs.org/aircraft/N11GP): [Powers Consulting Group LLC](https://openairdocs.org/faa-owner/POWERS%20CONSULTING%20GROUP%20LLC), [Naples, FL](https://openairdocs.org/faa-place/FL/Naples), built 2024, S/N 525C0457 - [N124FS](https://openairdocs.org/aircraft/N124FS): [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 2018, S/N 101 - [N127UH](https://openairdocs.org/aircraft/N127UH): [U-Haul Business Consultants Inc](https://openairdocs.org/faa-owner/U-HAUL%20BUSINESS%20CONSULTANTS%20INC), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 2019, S/N 127 - [N12MG](https://openairdocs.org/aircraft/N12MG): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2021, S/N 525C0370 - [N12SS](https://openairdocs.org/aircraft/N12SS): [Shoe Show Inc](https://openairdocs.org/faa-owner/SHOE%20SHOW%20INC), [Concord, NC](https://openairdocs.org/faa-place/NC/Concord), built 2016, S/N 525C-0219 - [N131MS](https://openairdocs.org/aircraft/N131MS): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2020, S/N 525C0337 - [N137JQ](https://openairdocs.org/aircraft/N137JQ): [Bcm Aviation LLC](https://openairdocs.org/faa-owner/BCM%20AVIATION%20LLC), [Naples, FL](https://openairdocs.org/faa-place/FL/Naples), built 2013, S/N 525C0137 - [N140SX](https://openairdocs.org/aircraft/N140SX): [Crc Aviation LLC](https://openairdocs.org/faa-owner/CRC%20AVIATION%20LLC), [Reno, NV](https://openairdocs.org/faa-place/NV/Reno), built 2019, S/N 140 - [N141RT](https://openairdocs.org/aircraft/N141RT): [Texsun Ltd LLC](https://openairdocs.org/faa-owner/TEXSUN%20LTD%20LLC), [Amarillo, TX](https://openairdocs.org/faa-place/TX/Amarillo), built 2019, S/N 525C0299 - [N14WN](https://openairdocs.org/aircraft/N14WN): [H&H Aeronautics LLC](https://openairdocs.org/faa-owner/H%26H%20AERONAUTICS%20LLC), [Gatesville, TX](https://openairdocs.org/faa-place/TX/Gatesville), built 2012, S/N 525C0104 - [N150RC](https://openairdocs.org/aircraft/N150RC): [Cbp Air Logistics LLC](https://openairdocs.org/faa-owner/CBP%20AIR%20LOGISTICS%20LLC), [Statham, GA](https://openairdocs.org/faa-place/GA/Statham), built 2012, S/N 525C0073 - [N155LP](https://openairdocs.org/aircraft/N155LP): [Knot For Free LLC](https://openairdocs.org/faa-owner/KNOT%20FOR%20FREE%20LLC), [Fruitland Park, FL](https://openairdocs.org/faa-place/FL/Fruitland%20Park), built 2012, S/N 525C0110 - [N159H](https://openairdocs.org/aircraft/N159H): [Lkw Inc](https://openairdocs.org/faa-owner/LKW%20INC), [Portsmouth, NH](https://openairdocs.org/faa-place/NH/Portsmouth), built 2015, S/N 525C0195 - [N176MC](https://openairdocs.org/aircraft/N176MC): [Barnes Chris](https://openairdocs.org/faa-owner/BARNES%20CHRIS), [Eagle, ID](https://openairdocs.org/faa-place/ID/Eagle), built 2018, S/N 109 - [N17HA](https://openairdocs.org/aircraft/N17HA): built 2019, S/N 129 - [N180RC](https://openairdocs.org/aircraft/N180RC): [Birdies Wings LLC](https://openairdocs.org/faa-owner/BIRDIES%20WINGS%20LLC), [Sioux Falls, SD](https://openairdocs.org/faa-place/SD/Sioux%20Falls), built 2014, S/N 525C0147 - [N184G](https://openairdocs.org/aircraft/N184G): [Tvpx Trust Co LLC Trustee](https://openairdocs.org/faa-owner/TVPX%20TRUST%20CO%20LLC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 2022, S/N 525C0391 - [N1886X](https://openairdocs.org/aircraft/N1886X): [Acord Transportation Inc](https://openairdocs.org/faa-owner/ACORD%20TRANSPORTATION%20INC), [Chandler, OK](https://openairdocs.org/faa-place/OK/Chandler), built 2014, S/N 525C0162 - [N1895C](https://openairdocs.org/aircraft/N1895C): [Gottemoeller Aircraft Leasing Ltd](https://openairdocs.org/faa-owner/GOTTEMOELLER%20AIRCRAFT%20LEASING%20LTD), [Fort Loramie, OH](https://openairdocs.org/faa-place/OH/Fort%20Loramie), built 2022, S/N 525C0373 - [N18MM](https://openairdocs.org/aircraft/N18MM): [Ef Capital Management Aviation LLC](https://openairdocs.org/faa-owner/EF%20CAPITAL%20MANAGEMENT%20AVIATION%20LLC), [The Woodlands, TX](https://openairdocs.org/faa-place/TX/The%20Woodlands), built 2019, S/N 525C0302 - [N18ZD](https://openairdocs.org/aircraft/N18ZD): [Bar S U Inc DBA](https://openairdocs.org/faa-owner/BAR%20S%20U%20INC%20DBA), [Fort Morgan, CO](https://openairdocs.org/faa-place/CO/Fort%20Morgan), built 2018, S/N 525C0262 - [N191SA](https://openairdocs.org/aircraft/N191SA): [Scheffler Air LLC](https://openairdocs.org/faa-owner/SCHEFFLER%20AIR%20LLC), [Henderson, NV](https://openairdocs.org/faa-place/NV/Henderson), built 2013, S/N 525C-0142 - [N194ME](https://openairdocs.org/aircraft/N194ME): [Soj-Hfg LLC](https://openairdocs.org/faa-owner/SOJ-HFG%20LLC), [Austin, TX](https://openairdocs.org/faa-place/TX/Austin), built 2017, S/N 525C0259 - [N19BW](https://openairdocs.org/aircraft/N19BW): [Capitan Peak LLC](https://openairdocs.org/faa-owner/CAPITAN%20PEAK%20LLC), [Mesquite, NM](https://openairdocs.org/faa-place/NM/Mesquite), built 2020, S/N 525C0329 - [N1K](https://openairdocs.org/aircraft/N1K): built 2022, S/N 525C0390 - [N1MG](https://openairdocs.org/aircraft/N1MG): [Hagedorn Aviation Inc](https://openairdocs.org/faa-owner/HAGEDORN%20AVIATION%20INC), [Columbus, OH](https://openairdocs.org/faa-place/OH/Columbus), built 2017, S/N 525C-0246 - [N2020](https://openairdocs.org/aircraft/N2020): [Eye Fly Inc](https://openairdocs.org/faa-owner/EYE%20FLY%20INC), [North Caldwell, NJ](https://openairdocs.org/faa-place/NJ/North%20Caldwell), built 2019, S/N 525C0295 - [N20AU](https://openairdocs.org/aircraft/N20AU): [Auburn University](https://openairdocs.org/faa-owner/AUBURN%20UNIVERSITY), [Auburn, AL](https://openairdocs.org/faa-place/AL/Auburn), built 2021, S/N 525C0351 - [N20LC](https://openairdocs.org/aircraft/N20LC): [Don Oppliger Trucking Inc](https://openairdocs.org/faa-owner/DON%20OPPLIGER%20TRUCKING%20INC), [Amarillo, TX](https://openairdocs.org/faa-place/TX/Amarillo), built 2012, S/N 525C0102 - [N20MT](https://openairdocs.org/aircraft/N20MT): [J M Thomas Forest Products Company](https://openairdocs.org/faa-owner/J%20M%20THOMAS%20FOREST%20PRODUCTS%20COMPANY), [Ogden, UT](https://openairdocs.org/faa-place/UT/Ogden), built 2022, S/N 525C0386 - [N2112](https://openairdocs.org/aircraft/N2112): [Rocinante Air LLC](https://openairdocs.org/faa-owner/ROCINANTE%20AIR%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2014, S/N 525C0159 - [N217RM](https://openairdocs.org/aircraft/N217RM): [Roland Charter Service LLC](https://openairdocs.org/faa-owner/ROLAND%20CHARTER%20SERVICE%20LLC), [Springfield, IL](https://openairdocs.org/faa-place/IL/Springfield), built 2015, S/N 525C0202 - [N218MB](https://openairdocs.org/aircraft/N218MB): [Mbi Leasing LLC](https://openairdocs.org/faa-owner/MBI%20LEASING%20LLC), [Bismarck, ND](https://openairdocs.org/faa-place/ND/Bismarck), built 2020, S/N 525C0331 - [N219GR](https://openairdocs.org/aircraft/N219GR): [N219gr LLC](https://openairdocs.org/faa-owner/N219GR%20LLC), [Vevay, IN](https://openairdocs.org/faa-place/IN/Vevay), built 2020, S/N 525C0340 - [N21TQ](https://openairdocs.org/aircraft/N21TQ): [Antair Sd LLC](https://openairdocs.org/faa-owner/ANTAIR%20SD%20LLC), [Brandon, SD](https://openairdocs.org/faa-place/SD/Brandon), built 2016, S/N 525C0228 - [N221S](https://openairdocs.org/aircraft/N221S): [Shiprock Holdings LLC](https://openairdocs.org/faa-owner/SHIPROCK%20HOLDINGS%20LLC), [Santa Fe, NM](https://openairdocs.org/faa-place/NM/Santa%20Fe), built 2018, S/N 525C0288 - [N22503](https://openairdocs.org/aircraft/N22503): [Rainmaker Lawyer Marketing Inc](https://openairdocs.org/faa-owner/RAINMAKER%20LAWYER%20MARKETING%20INC), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 2012, S/N 525C0083 - [N2286B](https://openairdocs.org/aircraft/N2286B): [Thornapple Flying Services LLC](https://openairdocs.org/faa-owner/THORNAPPLE%20FLYING%20SERVICES%20LLC), [Hastings, MI](https://openairdocs.org/faa-place/MI/Hastings), built 2016, S/N 525C0214 - [N229CJ](https://openairdocs.org/aircraft/N229CJ): [Pilot Point Consultancy LLC](https://openairdocs.org/faa-owner/PILOT%20POINT%20CONSULTANCY%20LLC), [Sunnyvale, CA](https://openairdocs.org/faa-place/CA/Sunnyvale), built 2016, S/N 525C0229 - [N22UB](https://openairdocs.org/aircraft/N22UB): [Cj4 Fpl Inc Trustee](https://openairdocs.org/faa-owner/CJ4%20FPL%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2015, S/N 525C0182 All 353: https://openairdocs.org/engine/williams-fj44-4a/aircraft.md ## NTSB investigations (4) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN25LA402](https://openairdocs.org/ntsb/CEN25LA402), Sep 25, 2025: Textron 525C (N361MB), Baton Rouge, LA, substantial damage. Probable cause: The improper installation of the trunnion pin, which resulted in a failure of the right main landing gear. Contributing to the accident was the failure of maintenance personnel to follow the aircraft… - [NTSB ERA25LA353](https://openairdocs.org/ntsb/ERA25LA353), Sep 18, 2025: Cessna 525C (N577RT), Mayfield, KY, substantial damage, investigation ongoing - [NTSB CEN17LA078](https://openairdocs.org/ntsb/CEN17LA078), Jan 16, 2017: Textron 525C (N525PZ), Howell, MI, substantial damage. Probable cause: The pilot's attempted landing on the ice-covered runway, which resulted in a runway excursion and impact with terrain. Contributing to the accident was airport personnel's lack of training regarding… - [NTSB CEN17FA072](https://openairdocs.org/ntsb/CEN17FA072), Dec 30, 2016: Cessna 525 (N614SB), Cleveland, OH, destroyed, 6 fatal. Probable cause: Controlled flight into terrain due to pilot spatial disorientation. Contributing to the accident was pilot fatigue, mode confusion related to the status of the autopilot, and negative learning… ## FAA accident and incident reports (8) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20250925014999A](https://openairdocs.org/incident/20250925014999A), Sep 25, 2025: Textron Aviation Inc 525C (N361MB), Baton Rouge, LA, Substantial damage. On September 25, 2025, at appx 1730, the Cessna citationjet (CE-525) landed at Baton Rouge, LA airport (btr) runway 31 the right-hand (RH) main landing gear… - [Accident 20250918014689A](https://openairdocs.org/incident/20250918014689A), Sep 18, 2025: Cessna 525C (N577RT), Mayfield, KY, Substantial damage. Upon landing, the aircraft had no braking action. The pilot continued to operate the brake pedals with no success. The aircraft continued past the end of the… - [Incident 20250313011469I](https://openairdocs.org/incident/20250313011469I), Mar 13, 2025: Textron Aviation Inc 525C (N68NE), Indianapolis, IN, Minor damage. Aircraft [privacy data omitted] while picking up passengers at kind, took on too much fuel during refuel operations, which put the aircraft in an overweight… - [Incident 20241214017859I](https://openairdocs.org/incident/20241214017859I), Dec 14, 2024: Textron Aviation Inc 525C (N525PZ), Bozeman, MT, Minor damage. Bird struck aircraft radome on climb out resulting in damage to radome and radar. - [Incident 20221209013439I](https://openairdocs.org/incident/20221209013439I), Dec 9, 2022: Textron Aviation Inc 525C (N29SB), Sugar Land, TX, Minor damage. [privacy data omitted] Touched down on runway 17, Sugar Land Regional Airport. During deceleration phase, at approximately 90 KTS, the pilot monitoring and… - [Incident 20220813014519I](https://openairdocs.org/incident/20220813014519I), Aug 13, 2022: Textron Aviation Inc 525C (N313GL), Little Rock, AR, Minor damage. On August 13, 2022 at approximately 17:30 CDT, [privacy data omitted]a Textron aviation, inc. 525C, [privacy data omitted] operated by a private pilot landed… - [Accident 20170116000109A](https://openairdocs.org/incident/20170116000109A), Jan 16, 2017: Cessna 525 (N525PZ), Howell, MI, Destroyed. Pilot stated "I touched down just before the 1000? Marks, lets call it 800? From the beginning of 13. It was about 300? Later I had the speed brakes and… - [Accident 20161229022289A](https://openairdocs.org/incident/20161229022289A), Dec 29, 2016: Cessna 525C (N614SB), Cleveland, OH, Destroyed, 6 fatal. On December 29, 2016, at 2257 eastern standard time, a Cessna model 525C (citation CJ4) airplane, N614SB, was destroyed after impacting lake erie shortly after… ## Service difficulty reports (77, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR QREA202610140007](https://openairdocs.org/sdr/QREA202610140007), Oct 7, 2026: ALTERNATOR. OVERHEATED. 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 RE - [SDR DBCA202608190001](https://openairdocs.org/sdr/DBCA202608190001), Aug 6, 2026: GEARBOX. CONTAMINATED. 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 - [SDR WI5R2025063000437](https://openairdocs.org/sdr/WI5R2025063000437), Jun 27, 2025: COMPRESSOR. DAMAGED. 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 DUR - [SDR 2024FA0000722](https://openairdocs.org/sdr/2024FA0000722), Sep 18, 2024: SPINNER. DAMAGED. 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 AI - [SDR 2024FA0000526](https://openairdocs.org/sdr/2024FA0000526), Jun 20, 2024: START BUTTON. DEACTIVATED. 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 - [SDR 2024FA0000215](https://openairdocs.org/sdr/2024FA0000215), Mar 11, 2024: BEARING. FAILED. 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 F - [SDR 6CBA2024012625001](https://openairdocs.org/sdr/6CBA2024012625001), Jan 25, 2024: AHRS. FAULTED. 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 T - [SDR DBCA2024010800001](https://openairdocs.org/sdr/DBCA2024010800001), Jan 8, 2024: TRANSDUCER. FAILED. 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 - [SDR 6CBA2023082523001](https://openairdocs.org/sdr/6CBA2023082523001), Aug 24, 2023: ACTUATOR. FAULTED. 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 - [SDR 9PMA2023092600568](https://openairdocs.org/sdr/9PMA2023092600568), Aug 3, 2023: BUSS. FALSE INDICATION. 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 - [SDR 6CBA2002306070001](https://openairdocs.org/sdr/6CBA2002306070001), Jun 3, 2023: PITOT SYSTEM. SHORTED. 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 - [SDR 6CBA202303310002](https://openairdocs.org/sdr/6CBA202303310002), Mar 31, 2023: UNKNOWN. UNKNOWN. 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. TECH - [SDR 6CBA202303300001](https://openairdocs.org/sdr/6CBA202303300001), Mar 30, 2023: UNKNOWN. UNKNOWN. 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 - [SDR 6CBA2022111422217](https://openairdocs.org/sdr/6CBA2022111422217), Nov 14, 2022: HEATER. SMOKE. PROBLEM: DURING A FLIGHT FROM KILG TO KPSM THE FLIGHT CREW ENCOUNTERED "SMOKE IN COCKPIT/CABIN, DISSIPATED AFTER SECURING CABIN HEAT." THEY DECLARED AN EMERGENC - [SDR DBCA202207130006](https://openairdocs.org/sdr/DBCA202207130006), Jul 13, 2022: NOZZLE. DETACHED. 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 S - [SDR 6CBA2022042022210](https://openairdocs.org/sdr/6CBA2022042022210), Apr 20, 2022: HEATER. FAULTY. 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". - [SDR 2021F00371](https://openairdocs.org/sdr/2021F00371), Dec 28, 2021: SWITCH. ACTIVE. 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 - [SDR 4LSA2021052402081](https://openairdocs.org/sdr/4LSA2021052402081), May 24, 2021: ENGINE. FAILED. 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 - [SDR 2021FA0000080](https://openairdocs.org/sdr/2021FA0000080), Mar 10, 2021: GENERATOR. BURNED. 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 - [SDR AMCR20210318002](https://openairdocs.org/sdr/AMCR20210318002), Mar 9, 2021: ALTERNATOR. MELTED. BEFORE FLIGHT, ON INITIAL ENGINE RUNS, IT WAS NOTICED THAT THE LEFT ALTERNATOR FAIL CAS MESSAGE WAS ILLUMINATED. UPON INSPECTION THE CREW REPORTED SMELLING SMOK - [SDR 6CBA2020112820201](https://openairdocs.org/sdr/6CBA2020112820201), Nov 28, 2020: WINDSHIELD. CRACKED. PROBLEM DURING PREFLIGHT WHILE AT KSUA THE FLIGHT CREW REPORTED, "RT FRONT WINDSHIELD CRACKED". RESOLUTION: THE AIRCRAFT/WINDSHIELD WAS INSPECTED AND FOUND SAFE - [SDR WI5R2020101400001](https://openairdocs.org/sdr/WI5R2020101400001), Oct 14, 2020: ROTOR. DAMAGED. 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, - [SDR WI5R2020100100001](https://openairdocs.org/sdr/WI5R2020100100001), Sep 29, 2020: ROTOR. DAMAGED. 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 - [SDR WI5R2020082400001](https://openairdocs.org/sdr/WI5R2020082400001), Aug 21, 2020: ROTOR. DAMAGED. REVIEW OF HISTORICAL, ROUTINE FADEC DOWNLOADS PERFORMED BY THE ENGINE MANUFACTURER REVEALED A SLIGHT SHIFT IN INTER-TURBINE TEMPERATURE (ITT), OCCURRING APPROXI - [SDR WI5R2020082400002](https://openairdocs.org/sdr/WI5R2020082400002), Aug 21, 2020: ROTOR. DAMAGED. REVIEW OF HISTORICAL, ROUTINE FADEC DOWNLOADS PERFORMED BY THE ENGINE MANUFACTURER REVEALED A SLIGHT SHIFT IN INTER-TURBINE TEMPERATURE (ITT), OCCURRING APPROXI - [SDR 6CBA2020080732195](https://openairdocs.org/sdr/6CBA2020080732195), Aug 3, 2020: CONTROLLER. FAILED. 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 - [SDR AMCR20200727021](https://openairdocs.org/sdr/AMCR20200727021), Jul 22, 2020: ALTERNATOR. SHORTED. 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 REVEA - [SDR WI5R2020070800001](https://openairdocs.org/sdr/WI5R2020070800001), Jul 8, 2020: COMPRESSOR BLADE. DAMAGED. FOLLOWING INCORPORATION OF SERVICE BULLETIN FJ44-72-127 (1ST LOW PRESSURE TURBINE NOZZLE UPGRADE) ON ENGINE, POST-MAINTENANCE VIBRATION SURVEY GROUND RUNS REVEA - [SDR WI5R202005270002](https://openairdocs.org/sdr/WI5R202005270002), May 22, 2020: ROTOR. FRACTURED. CUSTOMER REPORTED AN UNUSUAL NOISE DURING THROTTLE TRANSITION TO POWER. ALL ENGINE INDICATIONS WERE NORMAL. ON-WING BORESCOPE INSPECTION OF LEFT-HAND ENGINE SER - [SDR WI5R2020032000000](https://openairdocs.org/sdr/WI5R2020032000000), Mar 18, 2020: ROTOR. DAMAGED. DURING INITIAL TAKEOFF ROLL, PILOT NOTED RUMBLING NOISE AND A SHUDDER IN THE FOOT PEDALS WITH NO ABNORMAL INSTRUMENT INDICATIONS. PILOT ABORTED TAKEOFF AND RETU - [SDR WI5R202003060001](https://openairdocs.org/sdr/WI5R202003060001), Mar 5, 2020: ROTOR. FRACTURED. 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 - [SDR WI5R20200203001](https://openairdocs.org/sdr/WI5R20200203001), Feb 3, 2020: ROTOR. FRACTURED. 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 SUPPOR - [SDR WI5R20200117001](https://openairdocs.org/sdr/WI5R20200117001), Jan 16, 2020: ROTOR. FRACTURED. DURING OPERATION, A LOUD BANG AND INCREASE IN ITT WERE OBSERVED. FIELD BORESCOPE INVESTIGATION IDENTIFIED SEVERAL MISSING 3RD STAGE IP ROTOR BLADES. DISASSEMBLY - [SDR WI5R201901160001](https://openairdocs.org/sdr/WI5R201901160001), Jan 15, 2020: ROTOR. FRACTURED. 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 DI - [SDR WI5R20200110001](https://openairdocs.org/sdr/WI5R20200110001), Jan 10, 2020: ROTOR. FRACTURED. DURING FIELD TROUBLESHOOTING FOR A REPORTED ENGINE VIBRATION, BORESCOPE INSPECTION REVEALED POTENTIAL IP BLADE LIBERATION. DISASSEMBLY OF THE ENGINE CONFIRMED T - [SDR WI5R20200108001](https://openairdocs.org/sdr/WI5R20200108001), Jan 7, 2020: ROTOR. FRACTURED. 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 TH - [SDR WI5R20191219001](https://openairdocs.org/sdr/WI5R20191219001), Dec 19, 2019: ROTOR. FRACTURED. DURING TAKEOFF AND CLIMB, SPARKS WERE REPORTED COMING FROM THE TAILPIPE. FIELD BORESCOPE INVESTIGATION IDENTIFIED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBL - [SDR WI5R20191218001](https://openairdocs.org/sdr/WI5R20191218001), Dec 17, 2019: ROTOR. FRACTURED. DURING FIELD BORESCOPE INSPECTION FOR INCREASED ITT DURING CLIMB, SEVERAL IPC BLADES WERE DISCOVERED MISSING. DISASSEMBLY OF THE ENGINE CONFIRMED THAT THREE OF - [SDR 6CBA2019121219188](https://openairdocs.org/sdr/6CBA2019121219188), Dec 3, 2019: WINDSCREEN. CRACKED. 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 LAND - [SDR WI5R201910190001](https://openairdocs.org/sdr/WI5R201910190001), Oct 17, 2019: BLADE. FRACTURED. 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 EN - [SDR WI5R2019082200001](https://openairdocs.org/sdr/WI5R2019082200001), Aug 21, 2019: BLADE. FRACTURED. WHILE TROUBLE SHOOTING FOR A REPORTED UNUSUAL VIBRATION IN FLIGHT, A BORESCOPE INSPECTION DISCOVERED A MISSING 3RD STAGE IP ROTOR BLADE. DISASSEMBLY OF THE ENGI - [SDR WI5R2019080100001](https://openairdocs.org/sdr/WI5R2019080100001), Aug 1, 2019: BLADE. FRACTURED. 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 - [SDR CA190718002](https://openairdocs.org/sdr/CA190718002), Jul 16, 2019: WINDSHIELD. DAMAGED. (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 T - [SDR WI5R201907100001](https://openairdocs.org/sdr/WI5R201907100001), Jul 8, 2019: BLADE. FRACTURED. 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 - [SDR 2019FA0000224](https://openairdocs.org/sdr/2019FA0000224), Jul 3, 2019: BLADE. SEVERED. 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% - [SDR WI5R201906270001](https://openairdocs.org/sdr/WI5R201906270001), Jun 27, 2019: BLADE. MISSING. 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. DISASSEMB - [SDR WI5R2019062700008](https://openairdocs.org/sdr/WI5R2019062700008), Jun 27, 2019: BLADE. DAMAGED. 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 SQUEAL - [SDR WI5R201906210001](https://openairdocs.org/sdr/WI5R201906210001), Jun 21, 2019: BLADES. FRACTURED. 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 ~25 - [SDR WI5R20190621002](https://openairdocs.org/sdr/WI5R20190621002), Jun 21, 2019: BLADES. FRACTURED. 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. D - [SDR WI5R20190614001](https://openairdocs.org/sdr/WI5R20190614001), Jun 12, 2019: ROTOR. FRACTURED. 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 All 77: https://openairdocs.org/engine/williams-fj44-4a/reports.md --- 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.