# Service difficulty reports: N744BA, cancelled Feb 21, 2025 A list on [N744BA, cancelled Feb 21, 2025](https://openairdocs.org/deregistered/N744BA-2025-02-21.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR PLGA001005](https://openairdocs.org/sdr/PLGA001005.md): Controller · faulty · Oct 5, 2000 · N744BA · Saab SF340A · Air Intake Anti/De-Ice System > BOS - FLT 4659 - DURING FLIGHT, THE RIGHT INTAKE HEAT FAIL LIGHT ILLUMINATED. DUE TO WEATHER THE FLIGHT DIVERTED BACK TO BOS. THE SYSTEM WAS MEL'D AND THE AIRCRAFT WAS REPOSITIONED TO BGR WHERE MAINTENANCE REPLACED A FAULTY THERMAL CONTROLLER. AFTER PERFORM - [SDR PLGA990928](https://openairdocs.org/sdr/PLGA990928.md): Acm · failed · Sep 28, 1999 · N744BA · Saab SF340A · Cabin Cooling System > BOS-PHL - FLT 4773 - DURING CLIMB-OUT, CREW NOTED A BURNING SMELL IN THE COCKPIT. THEY SHUTDOWN THE RIGHT BLEED SYSTEM AND THE SMELL WENT AWAY. A/C DIVERTED BACK TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RT ACM AND PERFORMED A - [SDR PLGA990725](https://openairdocs.org/sdr/PLGA990725.md): Efis Tube · failed · Jul 25, 1999 · N744BA · Saab SF340A · Integrated Flight System > ALB - FLT 6685 - ALB/BOX - FLT 6685 - RETURNED TO ALB DUE TO ELECTRICAL BURNING SMELL IN THE FLIGHT DECK. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE CAPTAIN'S UPPER EFIS TUBE TO BE AT FAULT. THE EFIS TUBE WAS REPLACED. REQUIRED OPERATIONAL CHE - [SDR PLGA990301C](https://openairdocs.org/sdr/PLGA990301C.md): Wire · broken · Mar 1, 1999 · N744BA · Saab SF340A · Engine Bleed Air System Wiring > BOS - FLT 6394 - AFTER DEPARTURE FROM BOS, THE CREW GOT A RIGHT AIR VALVE LIGHT. CREW DIVERTED BACK TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED SYSTEM AND FOUND A BROKEN WIRE AT THE AIRFRAME CANNON PLUG. REPAIRED THE WIRE AND THE SYSTEM OPS CH - [SDR PLGA981116A](https://openairdocs.org/sdr/PLGA981116A.md): Transducer · fluctuates · Nov 16, 1998 · N744BA · Saab SF340A · Engine Oil Indicating System > BOS - FLT 4323 - ON CLIMB-OUT, THE LEFT ENGINE OIL PRESSURE STARTED TO FLUCTUATE BETWEEN 75 AND 125 PSI. AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLAFED THE LEFT OIL PRESSURE TRANSDUCER. SYSTEM TESTED GOOD. (M) - [SDR PLGA981112A](https://openairdocs.org/sdr/PLGA981112A.md): Engine · malfunctioned · Nov 12, 1998 · N744BA · Saab SF340A · Engine (Turbine/Turboprop) > BOS - FLT 4408 - AFTER ENGINE START AND TAXI AWAY FROM GATE, THE CREW REPORTED HEARING A DISTINCTIVE MUFFLED METALLIC 'THUD' FROM THE LEFT ENGINE AREA WITH NO ABNORMAL COCKPIT DISPLAY. THE CREW THEN NOTICED SMOKE COMING OUT THE LEFT ENGINE EXHAUST AREA. THE - [SDR PLGA980204B](https://openairdocs.org/sdr/PLGA980204B.md): Relay · failed · Feb 4, 1998 · N744BA · Saab SF340A · Air Intake Anti/De-Ice System > BOS - FLT 4289 - SHORTLY AFTER DEPARTURE, THE RIGHT ENGINE INTAKE HEAT FAILED. AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE RIGHT HEAT DRIVER RELAY. SYSTEM TESTED GOOD. (M) - [SDR PLGA971003A](https://openairdocs.org/sdr/PLGA971003A.md): Circuit Breaker · tripped · Oct 3, 1997 · N744BA · Saab SF340A · Propeller Controlling System > BOS - FLT 4276 - ON TAKEOFF, THE AUTOCOARSEN ARM LIGH REMAINED ILLUMINATED. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE FOUND THE AUTOCOARSEN CIRCUIT BREAKER OPEN. BREAKER WAS RESET AND SYSTEM TESTED NORMAL. (M) - [SDR PLGA97601A](https://openairdocs.org/sdr/PLGA97601A.md): Weu · failed · Jun 1, 1997 · N744BA · Saab SF340A · Fire Detection > BOS - FLT 4380 - AFTER TAKEOFF CREW RECEIVED A FIRE WARNIGN ON RIGHT ENGINE. THE FIRE WARNING LIGHT ON CWP, MASTER WARNING AND 'T' HANDLE ALL ILLUMINATED BUT THERE WAS NO ORAL CHIME. CREW CLEARED MASTER WARNING AND ALL LIGHTS EXTINGUISHED. AIRCRAFT RETURNED - [SDR PLGA970531A](https://openairdocs.org/sdr/PLGA970531A.md): Control Box · failed · May 31, 1997 · N744BA · Saab SF340A · Fire Detection > BOS - FLT 4330 - AFTER TAKEOFF CREW RECEIVED A RIGHT ENGINE FIRE WARNING. THE RIGHT ENGINE WAS SHUT DOWN AND THE EXTINGUISHER DISCHARGED. AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MX INSPECTED RIGHT ENGINE AREA AND FOUND NO EVIDENCE OF FIRE. TH - [SDR PLGA970329A](https://openairdocs.org/sdr/PLGA970329A.md): Prop De-Ice · failed · Mar 29, 1997 · N744BA · Saab SF340A · Propeller/Rotor Anti-Ice/De-Ice System > BOS - FLT 4475 - WHILE IN ICING CONDITIONS, THE RIGHT PROP DE-ICE FAILED. AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT INCIDENT. MAINTENANCE OPERATIONAL CHECKED SYSTEM AND REPORTED NO PROBLEMS FOUND. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR PLGA9612203](https://openairdocs.org/sdr/PLGA9612203.md): Power Supply · low voltage · Dec 20, 1996 · N744BA · Saab SF340A · Battery/Charger System > BOS - FLT 4406 - DURING FLIGHT, CREW REPORTED THE EMERGENCY BUSS WENT INOPERATIVE. AIRCRAFT RETURNED TO BOS AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND JET PACK POWER SUPPLY AT FAULT. POWER PACK WAS REPLACED AND SYSTEM CHECKED NORMAL. (M) - [SDR PLGA9610281](https://openairdocs.org/sdr/PLGA9610281.md): Swivel · broken · Oct 28, 1996 · N744BA · Saab SF340A · Hydraulic System, Main > PSM - FLT 4851 - AFTER DEPARTING PWM EN ROUTE TO LGA, THE CREW NOTED THE HYDRAULIC PUMP RUNNING CONTINOUSLY. THE CREW SELECTED THE HYDRAULIC PUMP OFF AND NOTED MAIN PRESSURE AND QUANTITY AT ZERO. THE CREW SELECTED GEAR DOWN, PUMPED THE GEAR DOWN AND DIVERTED - [SDR PLGA9608211](https://openairdocs.org/sdr/PLGA9608211.md): Wire · broken · Aug 21, 1996 · N744BA · Saab SF340A · DC Generating System > BOS - FLT 4575 - EN ROUTE TO ACK FROM BOS, THE LEFT DC GENERATOR DROPPED OFF LINE AND WOULD NOT RESET. THE AIRCRAFT RETURNED TO BOS, LANDING WITHOUT INCIDENT. MAINTENANCE WAS DISPATCHED TO THE AIRCRAFT AND FOUND A WIRE BROKEN AT THE TERMINAL BLOCK OF THE GEN - [SDR PLG22996E2](https://openairdocs.org/sdr/PLG22996E2.md): Blade · disbonded · Feb 29, 1996 · N744BA · Saab SF340A · Propeller Blade Section > PROPELLER WAS REMOVED FORM SERVICE DUE TO MOVEMENT OF THE NR 1 BLADE OUTBOARD OF THE OUTER SLEEVE. TEAR DOWN INSPECTION FOUND A DISBONDING BETWEEN THE COMPOSITE MATERIAL AND OUTER SLEEVE. ALL FOUR BLADES WERE REPLACED WITH OVERHAUL CONDITIONED BLADES AND THE - [SDR PLGA414951](https://openairdocs.org/sdr/PLGA414951.md): Blades · failed · Apr 14, 1995 · N744BA · Saab SF340A · Turbine Section > FLT 4864 - BOS-BDL - EXPERIENCED AN ENGINE FAILURE DURING TAKEOFF ROLL. AS POWER APPROACHED 80 PERCENT TORQUE, ITT ROSE TO 920 DEGREES CELSIUS AND 4TH STAGE TURBINE BLADES SEPARATED FROM THE TURBINE WHEEL. THE TAKEOFF WAS ABORTED WITHOUT INCIDENT. MAINTENAN - [SDR 95ZZZX1530](https://openairdocs.org/sdr/95ZZZX1530.md): Main Wheel · cracked · Feb 22, 1995 · N744BA · Saab SF340A · Wheel/Ski/Float > DURING EDDY CURRENT INSPECTION, INBOARD MAIN WHEEL HALF WAS FOUND WITH A 2 INCH CRACK IN THE BEAD SEAT AREA. THE WHEEL HALF WAS REMOVED FROM SERVICE, DEFACED AND DISCARDED. ## 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 n_number = 'N744BA' AND deregistration_id = 'N744BA-2025-02-21' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N744BA-2025-02-21/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.