Allison 250-C30S
Service difficulty reports · 449
Newest first. General aviation reporting is voluntary.
Query with SQL
duckdb -csv -c "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 = '250C30S' ORDER BY difficulty_date DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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 = '250C30S' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR HEEA112918Switch · out of adjustDURING TAKEOFF THE LANDING GEAR UNSAFE LIGHT ILLUMINATED. ADJUSTED NOSE LANDING GEAR CENTERING SWITCH.SDR HEEA111625Connector · contaminatedENROUTE, NR1 N1 GAUGE WOULD FAIL TO 0 AND THEN WOULD WORK AGAIN. THIS CYCLE WAS CONTINUOUS EACH TIME THE N1 GAUGE WOULD FAIL, THE AC GENERATOR WOULD FAIL ALSO. TURNED OFF THE AC GENERATOR. DRIED MOISTURE IN CONNECTOR IN N1 PICKUP.SDR HEEA111340Proximity Switch · out of adjustDURING CLIMBOUT, LANDING GEAR WOULD NOT RETRACT. NOSE WHEEL CENTERING LIGHT CAME ON. ADJUSTED NOSE WHEEL CENTERING PROXIMITY SWITCH.SDR HEEA111152Fuel Control · malfunctionedON CRUISE, WE WERE UNABLE TO BEEP NR 2 ABOVE 102. BEEP NR 1 TO MATCH. APPROXIMATELY 15 MINUTES FROM HMA, THE NR 2 JUMPED TO 106. MAINTENANCE REPLACED FUEL CONTROL.SDR HEEA111183Tachometer · overspeedNR 2 ENGINE OVERSPEED WARNING LIGHT STARTED FLASHING IN FLIGHT. MAINTENANCE REPLACED TACHOMETER UNIT.SDR AC2A111017Transmission · making metalAPPROXIMATELY ONE MINUTE AFTER DEPARTING SMI 61C, MAIN TRANSMISSION CHIP LIGHT ILLUMINATED WITHOUT CORRESPONDING MASTER CAUTION LIGHT. POWER WAS REDUCED AND THE APPROPRIATE EMERGENCY PROCEDURE, IAW THE RFM, WAS INTIATED. LIGHT DID NOT EXTINGUISH, RETURNED TO SDR HEEA110864Connector · contaminatedINBOUND TO HMA THE NR 1 ENGINE FIRE LIGHT CAME ON INTERMITTENTLY THEN AFTER 30 SEC IT CAME ON STEADY WITH HORN. PERFORMED EMERGENCY PROCEDURE. ASKED PASSENGERS IF ANY SECONDARY INDICATIONS WERE NOTED, NONE WERE APPARENT. COMPLETED EMERGENCY PROCEDURES. ASSDR HEEA110814Generator · malfunctionedON CLIMB OUT, NR 1 GEN LIGHT ILLUMINATED. FOLLOWED EMERGENCY CHECKLIST, ATTEMPTED TO RESET, WOULD NOT RESET. TURNED NR 1 GEN SWITCH OFF. LANDED, MAINTENANCE REPLACED NR 1 GENERATOR.SDR AC2A110829Starter Gen · malfunctionedNR 2 STARTER GENERATOR LIGHT COME ON IN FLIGHT. FOLLOWED EMERGENCY CHECK LIST. WHEN COMPLETING THE CHECKLIST THE NR 2 OIL PRESSURE GAGE WENT TO ZERO. NOTED THAT NO WARNING LIGHT WAS ON FOR THE NR 2 OIL PRESSURE SYSTEM. MAINTAINED A WATCH ON THE TEMPERATURE ASDR HEEA109863Connector · dirtyIN CRUISE FLIGHT NR 2 ENGINE OIL PRESSURE BEGAN TO FLUCTUATE FROM 45PSI TO AS LOW AS 10PSI INTERMITTENTLY. FOLLOWED CHECKLIST AND DIVERTED TO FOURCHON. NO SECONDARY INDICATIONS WERE PRESENT. MAINTENANCE CLEANED CONNECTOR TO THE NR 2 ENGINE OIL PRESSURE TRASDR HEEA109624Indicator · fluctuatesDURING CRUISE FLIGHT; NR 1 FUEL FLOW INDICATOR FLUCTUATED BETWEEN 320 LB. PER HOUR TO 140 LB. PER HOUR. PERFORMED EMERGENCY PROCEDURES FOR ABNORMAL FUEL FLOW - WITHOUT SECONDARY INDICATIONS. DEVIATED TO FOURCHON. SWAPPED FLOW METER CONNECTORS, COULD NOT DUSDR AC2A109592Hose · failedNR 2 SERVO SYSTEM CAUTION LIGHT ILLUMINATED APPX. 15 MINUTES INTO THE FIRST FLIGHT OF THE DAY, ACCOMPANIED BY NR 2 HYDRAULIC PRESSURE FLUCTUATING 2000 AND 3000 PSI. EMERGENCY PROCEDURE WAS COMPLETED PER THE EP CHECKLIST. ENROUTE TO LEEVILLE WITH SYSTEM NR 2 SSDR HEEA109615Fuel Control · fluctuatesDURING CRUISE FLIGHT THE NR 1 ENGINE N1 BEGAN TO FLUCTUATE .2 TO .3 AND TORQUE 2 TO 3.5 TO 8 MINUTES LATER THE N1 FLUCTUATED .8 TO 1.0. REVIEWED THE CHECKLIST AND LANDED AT HOUMA AND NOTIFIED MAINTENANCE. MAINTENANCE REMOVED 9.5 CC'S OF WATER FROM THE TEMPESDR AC2A109597Attach Fitting · crackedDURING TAILROTOR GEARBOX RETORQUE, MECHANIC SAW A CRACK ON THE TAIL ROTOR GEARBOX MOUNTING ATTACHMENT FITTING AT THE 6 O'CLOCK POSITION. PART WILL BE REPLACED.SDR CA060605007Shaft · broken(CAN) THREADED END BROKEN OFF DURING ASSY. (ENGINE POWER OUTPUT ADAPTOR SHAFT) (TC NR 20060605007)SDR HEEA109566Starter Gen · noisyNOISE WAS HEARD FROM ENGINE COMPARTMENT, SEVERAL SECONDS LATER, NR 2 GENERATOR LIGHT CAME ON, NR 2 ENGINE N2 NEEDLES WENT TO ZERO ON BOTH SIDES. PERFORMED NORMAL LANDING. MAINTENANCE REPLACED THE NR 2 ENGINE STARTER GENERATOR.SDR AC2A109321Battery · weakLOW VOLTAGE. REPLACED BATTERY. ATTEMPTED TO CHARGE BATTERY BUT IT WOULDN'T TAKE A CHARGE.SDR AC2A109138Yoke · crackedFOUND CRACKS IN YOKE /REPLACED YOKE AND SENT CRACKED ONE TO MFG FOR EVALUATION.SDR ALG2006F00031Explosive Link · out of adjustON TAKEOFF, LANDING GEAR WAS RETRACTED, 3 GREEN LIGHTS WENT OUT, AND RED UNLOCKED LIGHT ILLUMINATED. MAINTENANCE ADJUSTED LT MAIN GEAR EXPLOSIVE LINK, APPLIED HYDRAULICS, AND CYCLED LANDING GEAR SEVERAL TIMES. OPS CHECK GOOD. (K)SDR ALG2006F00030Engine · oil consumptionON FINAL APPROACH, NR 2 ENGINE OIL PRESSURE STARTED FLUCTUATING. AC LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED ENGINE AND INSTALLED SERVICEABLE ENGINE DUE TO HIGH OIL CONSUMPTION. (K)SDR ALG2006F00027Chin Bubble · damagedSTRAIGHT AND LEVEL FLIGHT. FLOCK OF BIRDS SPOTTED COMING TOWARD FRONT OF AIRCRAFT. PILOT TOOK EVASIVE ACTION, LT CLIMB. ONE BIRD STRUCK CO-PILOT`S CHIN BUBBLE. MAINT INSPECTED AND FOUND NO FURTHER DAMAGE. REPLACED LT BAY WINDOW. (K)SDR CA060313008Pump · failedPUMP FAILURE.SDR 2006FA0000188O-Ring · corrodedFOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTENANCE. (K)SDR 2006FA0000189O-Ring · corrodedFOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTENANCE. (K)SDR 2006FA0000190O-Ring · corrodedFOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTENANCE. (K)SDR 2006FA0000191O-Ring · corrodedFOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTENANCE. (K)SDR HEEA107994Connector · dirtyNR 2 SERVO JAM LIGHT ILLUMINATED. COMPLIED WITH EMERGENCY PROCEDURE. HEADED BACK. ON SHORT FINAL LIGHT CAME ON AGAIN. MAINTENANCE CLEANED PRESSURE TRANSMITTER AND SERVO CONNECTORS MS3476L10-6S AND MS3476L8-33S.SDR HEEA107983Tube · chafedDURING CRUISE THE NR 1 HYDRAULIC LIGHT ILLUMINATED. SWITCHES CHECKED AND JAM CIRCUIT BREAKER RESET. RETURNED TO HOUMA. FOUND NR 1 HYDRAULIC PUMP PRESSURE TUBE ASSEMBLY CHAFED BY ADJACENT TUBES. REPLACED AFFECTED TUBES.SDR ALG2006F00010Relay · inoperativeAFTER TAKEOFF, MAIN LANDING GEAR LIGHT WOULD NOT CLEAR. REMOVED AND REPLACED RELAY K18 WITH SERVICEABLE PART. C/W RETRACTION CHECK. ALL SYSTEMS CHECKED GOOD. (K)SDR ALG2006F00014Gauge · malfunctionedNR 1 ENGINE, T5 GAUGE BEGAN CLIMBING WITH DIGITAL STEADY. SHUTDOWN NR 1 ENGINE AND T5 STAYED AT 700C. REPLACED NR1, T5 GAUGE WITH SERVICEABLE UNIT. (K)SDR ALG2006F00015Inverter · failedON TAKEOFF, HP1 AND HP2 WENT OFF LINE. REPLACED NR 1 INVERTER WITH SERVICEABLE UNIT. AIRCRAFT OPS CHECK GOOD. (K)SDR ALG2006F00008Starter Gen · failedDC ESSENTIAL BUSS CAUTION LIGHT ILLUMINATED IN FLIGHT. COMPLIED WITH EMERGENCY PROCEDURE AND PROCEEDED AND TERMINATED FLIGHT. FOUND NR 1 GENERATOR HAD FAILED. REPLACED NR 1 GENERATOR WITH SERVICEABLE UNIT. AIRCRAFT GROUND RUN AND FUNCTIONAL CHECKED GOOD IASDR ALG2006F00013Connector · openTHE NR 2 N1 GAUGE DROPPED TO ZERO. ENGINE OUT LIGHT ILLUMINATED AND HORN SOUNDED. CLEANED CONNECTOR PLUGS WITH ELECTRICAL CONTACT CLEANER. GROUND RUN EVERYTHING CHECKED GOOD. (K)SDR ALG2006F00016Wire · chafedIN FLIGHT NR 1 ENGINE GAUGE DECREASED TO 360C. RETURNED TO BASE AND NOTIFIED MAINTENANCE. PROBLEM WAS IDENTIFIED AS A CHAFED WIRE ON THE BACK SIDE OF THE CONNECTOR PLUG. REPAIRED AS REQUIRED. (K)SDR ALG2006F00017Wire Harness · damagedAFTER TAKEOFF, THE LANDING GEAR WOULD NOT RETRACK. REMOVED AND REPLACED RT MLG SWITCH AND HARNESS. AIRCRAFT JACKED AND GEAR OPERATIONAL CHECK GOOD. (K)SDR ALG2006F00023Downlock Sensor · out of adjustLANDING GEAR UNLOCKED LIGHT ILLUMINATED WHEN THE GEAR WAS EXTENDED. MAITENANCE ADJUSTED THE DOWN LOCK PROXIMITY SENSOR FOR THE RT MAIN LANDING GEAR. (K)SDR ALG2006F00024Gauge · inoperativeON LANDING APPROACH NR 2 ENGINE NE1 GAUGE WENT TO ZERO, SETTING OFF THE ENGINE OUT WARNING LIGHT AND OTHER WARNINGS. REMOVED AND REPLACED N1 GAUGE WITH SERVICE UNIT. (K)SDR ALG2006F00025Warning Light · illuminatedWHILE ON APPROACH TO LANDING, LANDING GEAR WAS PLACED IN THE DOWN POSITION. SYSTEMS INDICATED THE LANDING GEAR WAS NOT SECURE. RETURNED TO BASE AND NOTIFIED MAINTENANCE. (K)SDR ALG2006F00000Bracket · looseWHEN AIRCRAFT WAS BROUGHT TO A HOVER THE LEFT MAIN GEAR LIGHT WENT OUT AND THE RED UNLOCK LIGHT ILLUMINATED. FOUND BRACKET HOLDING DOWN LOCK PROXIMITY LOOSE TIGHTENED, GROUND CHECK GOOD. (K)SDR ALG2006F00001Bracket · looseWHEN AIRCRAFT WAS BROUGHT TO A HOVER THE LEFT MAIN GEAR LIGHT WENT OUT AND THE RED UNLOCK LIGHT ILLUMINATED. FOUND BRACKET HOLDING DOWNLOCK PROXIMITY LOOSE TIGHTENED, GROUND CHECK GOOD. (K)SDR HEEA107420Isolation Mount · unknownIN CRUISE FLIGHT THE AIRFRAME DEVELOPED A LATERAL VIBRATION WHICH INCREASED IN DIRECT PROPORTION TO THE INCREASE OF AIRSPEED. MAINTENANCE REPLACED TWO BIFILAR BUMPERS AND THE MOUNTING CLAMPS (PN 700006-2) AND (PN 6438B-103) ON ONE ALTITUDE INDICATOR AND ONE HSDR HEEA107319Wire · brokenIN CRUISE FLIGHT, NR 2 ENGINE OIL TEMPERATURE SUDDENLY DROPPED TO ZERO. LANDED WITHOUT INCIDENT. MAINTENANCE REPAIRED BROKEN WIRE TO TEMP BULB IN THE ENGINE INTAKE AREA.SDR ALG2005F00123Seal · leakingPOST FLIGHT, AFTER LANDING, THE PILOT NOTICED OIL STREAKING DOWN ON THE LT SIDE OF THE AC AND HE ALSO FOUND LARGE AMOUNTS OF OIL INSIDE THE LEFT BAGGAGE COMPARTMENT. THE MECHANIC REMOVED AND REPLACED THE STARTER GENERATOR SEAL AND C/W WITH GROUND RUN AND LEAKSDR ALG2005F00096Indicator · failedE-DISPLAYED 730 ON MGT GAUGE ENROUTE. NO FLASH OR CHECK LIGHT. NO PLATFORMS LARGE ENOUGH FOR 2 HELICOPTERS IN VICINITY. NO RECORDED ACCUMULATED FAULTS. MGT GAUGE NORMAL. (K)SDR ALG2005F00100Connector · dirtyFIVE MINUTES AFTER TAKEOFF, TRANSMISSION GAUGE FLUCTUATED AND THEN DROPPED TO ZERO. FOUND TRANSMISSION CONNECTOR PLUG FULL OF OIL AND DIRT. CLEANED CONNECTOR PLUG. GROUND RUN AC WITH NO DEFECTS NOTED. (K)SDR ALG2005F00097Wire · brokenT-5 INDICATOR PROBLEM MANIFESTED DURING FLIGHT. INSPECTED SYSTEM AND FOUND BROKEN WIRE AT PIN NR 11 OF NR 2 T-5 INDICATOR CONNECTOR. REPAIRED BROKEN WIRE IAW S-76 MM. PERFORMED SYSTEM TEST USING TESTER. GROUND RUN-UP PERFORMED. NO DEFECTS NOTED. SYSTEM RSDR ALG2005F00090Seal · leakingAFTER LANDING, OIL WAS OBSERVED ON MAIN GEAR AND TAILBOOM. REPLACED GEARBOX SEAL (STARTER/ GENERATOR) AND OIL RING ON STARTER/GENERATOR. ALL WORK C/W ICW C-30 MM. (K)SDR CA051123005Hose · unserviceableWHILE GROUND RUNNING AIRCRAFT, OIL HOSE BURST AND DRAINED MGB OIL OVERBOARD.SDR ALG2005F00110Circuit Breaker · trippedAFTER TAKEOFF, FLIGHT ATTEMPTED TO RAISE THE LANDING GEAR, BUT THE GEAR WOULD NOT RETRACT. RETURNED TO DEPARTURE. FOUND LANDING GEAR CONTROL CIRCUIT BREAKER NOT SET. RESET CIRCUIT BREAKER AND INSPECTED ALL LANDING GEAR COMPONENTS. NO DEFECTS WERE NOTED. JASDR ALG2005F00120Engine · failedON PRELANDING CHECK, ENGINE OIL PRESSURE DECREASED AND OIL TEMPERATURE INCREASED ABOVE THE RED LINE. ON LONG FINAL TO THE BASE, SHUTDOWN NR 1 ENGINE. AFTER LANDING, NOTIFIED MAINTENANCE. (K)
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