# Service difficulty reports: Allison 250-C40B

A list on [Allison 250-C40B](https://openairdocs.org/engine/allison-250-c40b.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 87 reports

- [SDR QMLA2019092619076](https://openairdocs.org/sdr/QMLA2019092619076.md): Filter · abnormal · Sep 26, 2019 · N430UH · Bell 430 · Engine Air Intake System
  > DURING CLIMB OUT, PILOT TURNED ON AIR CONDITIONING SYSTEM AND CABIN FILLED WITH SMOKE. PILOT IMMEDIATELY RETURNED BACK TO BASE AND MAINTENANCE WAS ON SITE TO INSPECT. UPON INVESTIGATION, IT WAS NOTICED THAT THE INLET BARRIER FILTERS HAS JUST BEEN REPLACED WITH
- [SDR QMLA2018101118110](https://openairdocs.org/sdr/QMLA2018101118110.md): Mount · cracked · Oct 10, 2018 · N430UH · Bell 430 · Main Rotor Gearbox
  > DURING PREFLIGHT INSPECTION, FOUND RIGHT HAND TRANSMISSION MOUNT ASSEMBLY P/N 230-031-619-101 CRACKED AT THE EAR FOR THE LATERAL ISOLATION MOUNT ATTACH POINT.
- [SDR K2DA2020012220](https://openairdocs.org/sdr/K2DA2020012220.md): Blade · damaged · Oct 3, 2018 · N430ST · Bell 430 · Tail Rotor Blades
  > AT 1104 HST, WAS AT APPROXIMATELY N19.54`02" W156.06`58" TRANSITIONING THROUGH PHKO CLASS D AIRSPACE AT 1350`MSL AND 125 KIAS ON A HEADING OF 165 DEGREES, EN ROUTE TO FLY COUNTER-CLOCKWISE AROUND THE BIG ISLAND. WITH AUTOPILOT ENGAGED AND A COMMANDED CLIMB T
- [SDR 2PJA20180717001](https://openairdocs.org/sdr/2PJA20180717001.md): Transducer · failed · Jul 17, 2018 · N255MK · Bell 430 · Hydraulic Pressure Sensor
  > ON TAKEOFF, DURING CLIMB NR 2 HYDRAULIC PRESSURE REDUCED TO 0 PSI. PAGE 2 CAUTION WAS ILLUMINATED. AIRCRAFT DIVERTED TO KMTN. MAINTENANCE REMOVED AND REPLACED THE NR 2 HYDRAULIC TRANSDUCER. AIRCRAFT WAS GROUND RAN AND OP CHECKED GOOD, THEN RETURNED TO SERVICE.
- [SDR Q6HA2016092900001](https://openairdocs.org/sdr/Q6HA2016092900001.md): Wire · broken · Sep 27, 2016 · N5RH · Bell 430 · Landing Gear System Wiring
  > WITH LANDING GEAR SELECTED DOWN THE LANDING GEAR DOES NOT EXTEND INTERMITTENTLY. WARNING HORN DOES SOUND WITH GEAR HANDLE DOWN AND GEAR UP. WIRE G11A22 FOUND BROKEN AT LANDING GEAR SWITCH 2AS18 ON CONTACT 2NC. THIS PROVIDES GROUND TO EXTEND SIDE OF LANDING G
- [SDR QMLA201601316010](https://openairdocs.org/sdr/QMLA201601316010.md): Engine · making metal · Feb 13, 2016 · N555BA · Bell 430 · Engine (Turbine/Turboprop)
  > ENGINE REMOVAL DUE TO CHIP EVENTS IN SUMP CHIP DETECTOR.
- [SDR CA151102009](https://openairdocs.org/sdr/CA151102009.md): Tube · damaged · Oct 30, 2015 · Bell 427 · Engine Fuel Distribution
  > (CAN) THE FOLLOWING HAS BEEN REPORTED TO MFG: IN-FLIGHT SHUTDOWN. THE ACFT MADE A SAFE LANDING AND NO ADDITIONAL DAMAGE WAS DONE TO THE ACFT OR PERSONNEL. THE LOWER SHROUD ON THE FMM CRACKED AROUND 1 OF THE HIGH PRESSURE FUEL FITTINGS WHICH GOES INTO THE BOT
- [SDR HEER20150825656](https://openairdocs.org/sdr/HEER20150825656.md): Bearing · spalled · Aug 25, 2015 · N490PH · Bell 407 · Turbine Section
  > ENGINE REMOVED 8-12-15 DUE TO OVERTORQUE. REPLACED TURBINE NR 5 BEARING DUE TO DEEP SCRATCHES ON BALLS AND POSSIBLE SPALLING ON BEARING OUTER RACE. INSTALLED NEW NR 5 BEARING. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.
- [SDR CA150827010](https://openairdocs.org/sdr/CA150827010.md): Shear Restraint · debonded · Aug 20, 2015 · Bell 430 · Main Rotor Head
  > (CAN) ACFT EXPERIENCE HIGH LATERAL VIBRATION IN FLIGHT. ACFT RETURNED TO BASE AND VISUAL INSPECTION REVEALED ELASTOMERIC DEBONDED ON SHEAR RESTRAINT.
- [SDR CA150429014](https://openairdocs.org/sdr/CA150429014.md): Engine · malfunctioned · Apr 26, 2015 · Bell 430 · Engine (Turbine/Turboprop)
  > (CAN) ACFT REPORTED TO HAVE SUFFERED A HARD LANDING FOLLOWING A PROBLEM WITH THE NR 1 ENGINE. A/C SKIDS ARE SPLAYED.
- [SDR CA150505001](https://openairdocs.org/sdr/CA150505001.md): Sun Gear · faulty · Apr 26, 2015 · Bell 430 · Main Rotor Gearbox
  > (CAN) FINDINGS BY STEPS OF OCCURRENCE: A CRACK SOUND DURING HOVER HEARD BY EVERYONE INCLUDING PASSENGERS. BOTH ENGINES NP POWER TURBINE RPM REACHED TO PERCENT 119.6, NR RPM PERCENT 119.7. DURING HARD LANDING, CROSS-TUBES BENT AND AFT FUSELAGE TOUCHED THE GRO
- [SDR CA150421007](https://openairdocs.org/sdr/CA150421007.md): Nut · damaged · Apr 14, 2015 · Bell 430 · Standard Practices/Structures
  > (CAN) TWO ANCHOR NUTS WERE FOUND BROKEN, CRACKED AND MISSING THE RETENTION SPRING.
- [SDR QMLA2015021215010](https://openairdocs.org/sdr/QMLA2015021215010.md): Strip · cracked · Feb 12, 2015 · N556UH · Bell 430 · Main Rotor Blades
  > DURING BLADE REMOVAL, FOR 100HR YOKE INSPECTION, FOUND CRACKS IN ABRASION STRIP ON LE OF BLADE SN A-2180. DETERMINED CRACK IS OUT OF LIMITS IAW THE MM.
- [SDR QMLA2014061614074](https://openairdocs.org/sdr/QMLA2014061614074.md): Yoke · cracked · Jun 16, 2014 · N555BA · Bell 430 · Main Rotor Head
  > UPON INITIAL INSPECTION FOUND FOUR CRACKS IN MAIN ROTOR YOKE LOCATED BETWEEN STATION 26 & 31. CRACKS ARE 2 TO 4.5 INCHES IN LENGTH. AFTER REMOVING SEALANT FROM KNOWN CRACKS FOUND ADDITIONAL CRACKING UNDERNEATH MAKING FIVE CRACKS ON ARM. THERE ARE THREE CRAC
- [SDR CA131121001](https://openairdocs.org/sdr/CA131121001.md): Engine · failed · Nov 14, 2013 · Bell 430 · Engine (Turbine/Turboprop)
  > (CAN) DURING AN OFFSHORE FLIGHT, THE NR 1 ENGINE EXPERIENCED A SUMP CHIP LIGHT, THEN A LOUD BANG AND LOSS OF OIL PRESSURE. ENGINE WAS SECURED AND THE ACFT FLOWN FOR AN OEI LANDING. INSPECTION OF THE ACFT FOUND SHRAPNEL DAMAGE TO THE ACFT TAILBOOM AND 1 T/R
- [SDR QMLA2013110613159](https://openairdocs.org/sdr/QMLA2013110613159.md): Yoke · cracked · Nov 6, 2013 · N555BA · Bell 430 · Main Rotor Head
  > WHILE PERFORMING 150 HR INSPECTION OF MAIN ROTOR YOKE, FOUND SIX NEW CRACKS SINCE LAST INSPECTION. SMALLEST CRACK WAS 0.5 AND LONGEST CRACK 3.375. FOUR ON TOP OF YOKE, TWO ON EACH ARM AND THREE ON BOTTOM, TWO ON ONE SIDE AND ONE ON THE OTHER.
- [SDR QMLA2013090413126](https://openairdocs.org/sdr/QMLA2013090413126.md): Stud · broken · Sep 4, 2013 · N557UH · Bell 430 · Tail Rotor Gearbox
  > STUD HAD SHEARED OFF OF THE TAIL ROTOR GEARBOX MOUNTING FLANGE AT ONE O`CLOCK POSITION. NOTICED POSITIONS THREE, FIVE AND ELEVEN O`CLOCK STUDS WERE LOOSE AS WELL. REMOVED TAIL ROTOR GEARBOX FROM THE ACFT.
- [SDR CA130618008](https://openairdocs.org/sdr/CA130618008.md): Control Tube · cracked · Jun 13, 2013 · Bell 430 · Tail Rotor Control System
  > (CAN) DURING A ROUTINE ANNUAL INSPECTION, WHILE INSPECTING THE TAIL ROTOR FLIGHT CONTROLS IN THE BELLY OF THE ACFT, SOME CHAFING WAS NOTED ON CONTROL TUBE, PN 430-001-007-101 AT THE SECOND BULKHEAD AFT OF THE CONNECTING FORWARD CLEVIS AND BULKHEAD. UPON DISASS
- [SDR CA130325016](https://openairdocs.org/sdr/CA130325016.md): Control Tube · broken · Mar 24, 2013 · Bell 430 · Tail Rotor Control System
  > (CAN) PILOT LOST THE TAIL ROTOR CONTROL DURING FLIGHT. ROD END BROKEN.
- [SDR Q2HA20121109001](https://openairdocs.org/sdr/Q2HA20121109001.md): Fitting · loose · Oct 27, 2012 · N431HF · Bell 430 · Engine Fuel Distribution
  > ON OCTOBER 26, 2012 THE NR 1 ENGINE FUEL NOZZLE WAS REMOVED AND RESHIMMED FOR AN INTERMITTENT STARTING PROBLEM. THE MAINTENANCE ACTION WAS COMPLETED AND SIGNED OFF IN THE AIRCRAFT LOGBOOK, HOWEVER NO SUBSEQUENT CHECK RUN WAS ACCOMPLISHED ON THE ENGINE PRIOR T
- [SDR QMLA2012050912076](https://openairdocs.org/sdr/QMLA2012050912076.md): Engine · making metal · May 9, 2012 · N555BA · Bell 430 · Engine (Turbine/Turboprop)
  > NR 1 ENGINE SCAVENGE CHIP LIGHT ILLUMINATED DURING START UP. REMOVED SCAVENGE CHIP DETECTOR AND VISUALLY INSPECTED. FOUND MASS QUANTITIES OF METAL ON THE CHIP DETECTOR. REMOVED ACFT FROM SERVICE.
- [SDR QMLA2012021412024](https://openairdocs.org/sdr/QMLA2012021412024.md): Static Port · shorted · Feb 14, 2012 · N555BA · Bell 430 · Pitot/Static System
  > PILOT REPORTED ELECTRICAL FUMES IN COCKPIT. FOUND STATIC PORT SHORTED
- [SDR CA061023003](https://openairdocs.org/sdr/CA061023003.md): Control Tube · scratched · Oct 20, 2011 · Bell 430 · Rotorcraft Flight Control
  > (CAN) CONTROL TUBE, PN 222-001-021-145 WAS INSTALLED ON WRONG SIDE OF PILOT CYCLIC STICK LOWER LEVER CAUSING A FOULING CONDITION WITH THE ACFT STRUCTURE IN THE MOST LT CYCLIC TRAVEL.
- [SDR AC2R0CT03062011](https://openairdocs.org/sdr/AC2R0CT03062011.md): Shaft · cracked · Mar 6, 2011 · N430CT · Bell 430 · Turbine Section
  > OUTER SHAFT FOUND CRACKED AT TT 259.0 AT DISASSEMBLY. ENGINE WAS REMOVED FOR SMOKING ON SHUTDOWN AND VXP INDICATED VIBRATIONS TRENDING UP. RAN ON TEST CELL AND ABORTED RUN DUE TO EXCESSIVE VIBRATIONS NOTED IN ENGINE'S COMPRESSOR AND DID FIND SMOKING ON SHUTD
- [SDR CA100812001](https://openairdocs.org/sdr/CA100812001.md): Rod End · leaking · Aug 4, 2010 · Bell 430 · Rotorcraft Servo System
  > MFG RECEIVED REPORT OF A 430 COLLECTIVE FLIGHT CONTROL MALFUNCTION DURING PREPARATION FOR TAKEOFF. EVENT OCCURED ON GROUND. AFTER ACFT WAS SHUTDOWN A OIL LEAK WAS OBSERVED FROM THE SERVO.
- [SDR QMLA2010051810014](https://openairdocs.org/sdr/QMLA2010051810014.md): Hanger Assy · sheared · May 18, 2010 · N555BA · Bell 430 · Tail Rotor Drive Shaft
  > DURING ROUTINE INSPECTION DISCOVERED MOUNTING FLANGE BROKE OFF OF THE NR1 TAIL ROTOR DRIVE SHAFT HANGER BRG. PERFORMED INSPECTION OF THE SURROUNDING AREA AND REPLACED HAGER BRG ASSY.
- [SDR 1E9R201001](https://openairdocs.org/sdr/1E9R201001.md): Blade · cracked · Feb 19, 2010 · N430TX · Bell 430 · Tail Rotor Blades
  > ACFT WAS FLOWN TO FACILITY, REPORTED DEBONDING OF TAIL ROTOR BLADE L/E AT TIP OF BLADE. UPON FURTHER INVESTIGATION OF BLADE, IT WAS DISCOVERED THAT THE ROOT END OF THE BLADE HAD CRACKED AND THE SKIN WAS SEPARATED FROM THE BLADE END. INFO SUBMITTED TO MFG PRO
- [SDR CA100122007](https://openairdocs.org/sdr/CA100122007.md): Stud · loose · Jan 20, 2010 · Bell 430 · Turbine Engine Reduction Gear
  > (CAN) QTY (2) STUDS PARTIALLY BACKED OUT OF THE THREADED HOLES OF THE 2-1/2 BRG CAGE MOUNTING BOSS. STUDS BACKED OUT APPROX 1 AND 2 THREADS RESPECTIVELY. NUTS ON THESE STUDS DID NOT HAVE ANY REMAINING TORQUE ON THEM. NUTS ON THE REMAINING STUDS WERE ALSO LOO
- [SDR AC2A2009090183074](https://openairdocs.org/sdr/AC2A2009090183074.md): Unknown · malfunctioned · Sep 1, 2009 · N430CF · Bell 430 · Main Rotor Gearbox
  > SIX MINUTES OUT OF VENICE, LA, TRANSMISSION
- [SDR QMLR MC708](https://openairdocs.org/sdr/QMLR%20MC708.md): Blade · cracked · Aug 27, 2009 · N556UH · Bell 430 · Tail Rotor Blades
  > FOUND TAIL ROTOR BLADE ROOT TO BE CRACKED IN VICINITY OF PITCH HORN.
- [SDR AC2A2009053181959](https://openairdocs.org/sdr/AC2A2009053181959.md): Pickup · malfunctioned · May 31, 2009 · N430CT · Bell 430 · Bleed Air Indicating System
  > ENROUTE, YELLOW M/ECU2 INDICATOR, WHITE ECU INDICATOR ABOVE THE NR 2 ENGINE TQ AND NP INDICATION FLUCTUATED FOR ABOUT FIVE MINUTES BEFORE IT RETURNED TO NORMAL INDICATION. ALTERED ROUTE FOR A DIRECT FLIGHT. SHUT DOWN ACFT AT HELIPORT AND NOTIFIED MX. REPL
- [SDR AC2A2009050381739](https://openairdocs.org/sdr/AC2A2009050381739.md): Warning Light · illuminated · May 3, 2009 · N430CT · Bell 430 · Central Warning
  > FLYING FROM THE HERCULES 120 TO 299B AND THE NR1 M/ECU CAUTION LIGHT ILLUMINATED IN FLIGHT, RETURNED TO DEPARTURE AND SHUTDOWN.
- [SDR AC2A2009042481568](https://openairdocs.org/sdr/AC2A2009042481568.md): Ecu · faulty · Apr 24, 2009 · N430CT · Bell 430 · Fuel Control/Turbine Engines
  > IN FLIGHT, YELLOW M/ECU2 LIGHT ILLUMINATED, FOLLOWED BY A WHITE ECU LIGHT ABOVE THE NR2 ENGINE TORQUE. RETARDING THE THROTTLE TO IDLE HAD NO EFFECT ON THE NR2 NP. TO REDUCE THE NR2 NP TO IDLE, THE ECU HAD TO BE PUT INTO MANUAL.
- [SDR AC2A2009031181030](https://openairdocs.org/sdr/AC2A2009031181030.md): Warning Message · illuminated · Mar 11, 2009 · N430CT · Bell 430 · Engine Indicating System
  > TAKING OFF FROM SP 77A TO WD 109 AND THE 1 M/ECU 2 LIGHT ILLUMINATED ALONG WITH THE ECU LIGHT ABOVE THE NR 1 TORQUE AND THE FADEC HORN. WENT TO THE MANUAL MODE ON THE NR 1 AND RETURNED TO DEPARTURE, LANDED AND SHUTDOWN.
- [SDR AC2A2009031081018](https://openairdocs.org/sdr/AC2A2009031081018.md): Warning Message · illuminated · Mar 10, 2009 · N430CT · Bell 430 · Engine Indicating System
  > LANDED AT 0945 WHEN THE 1 M/ECU 2 LIGHT ILLUMINATED IN FLIGHT. MX CAME OUT TO THE ACFT & CLEARED THE FAULT WITH COMPUTER. TOOK OFF AT 1025 AND 5 MINUTES INTO THE FLIGHT THE M/ECU 2 LIGHT ILLUMINATED & THEN IT ILLUMINATED WITH THE 1 M/ECU 2. TURNED AROUND, BAC
- [SDR 2009FA0000275](https://openairdocs.org/sdr/2009FA0000275.md): Nut · loose · Feb 9, 2009 · N522MV · Bell 430 · Tail Rotor Head
  > DURING COURSE OF SCHEDULED INSP, NUT RETAINING THE TAIL ROTOR PITCH CHANGE CONTROL BEARING WAS FOUND TO BE LOOSE ALLOWING BEARING INNER RACE TO SPIN ON ITS SEAT. BEARING RETAINING NUT PN 222-012-717-001 IS PREVENTED FROM MOVING BY THE USE OF A LOCKRING PN 222-
- [SDR AC2A2008080377650](https://openairdocs.org/sdr/AC2A2008080377650.md): Warning Message · false activation · Aug 3, 2008 · N430CT · Bell 430 · Central Warning
  > DURING THE RETURN FLIGHT FROM, EXPERIENCED A ECU (FADEC) FAILURE ON THE NR 2 ENGINE. IAW THE EMERGENCY PROCEDURES, REDUCED THE THROTTLE ON THE NR 2 ENGINE AND SWITCHED TO MANUAL CONTROL. PILOT NOTIFIED DEPARTURE APT OF THE PROBLEM AND EXECUTED AN UNEVENTFUL L
- [SDR 4911905172008](https://openairdocs.org/sdr/4911905172008.md): Vertical Gyro · faulty · May 17, 2008 · N557UH · Bell 430 · Rate of Climb Indicator
  > DURING CRUISE FLIGHT, PILOT FELT A VIBRATION IN THE AC FOLLOWED BY ATTITUDE EXCURSIONS IN THE PITCH AXIS. THIS OCCURRED OVER A PERIOD OF APPROXIMATELY (2) MINUTES AND FELT SIMILAR TO GOING OVER A SERIES OF SPEED BUMPS. THE PILOT ELECTED TO MAKE A PRECAUTIONARY
- [SDR AC2A119524](https://openairdocs.org/sdr/AC2A119524.md): Gearbox · cracked · Apr 21, 2008 · N430CH · Bell 430 · Tail Rotor Gearbox
  > FLANGE MOUNTING EAR COMPLETELY CRACKED ON TAIL ROTOR GEAR BOX OUTPUT SLEEVE HOUSING.
- [SDR AC2A119271](https://openairdocs.org/sdr/AC2A119271.md): Warning Light · illuminated · Mar 17, 2008 · N430CT · Bell 430 · Powerplant System
  > NR 2 ENGINE CHIP SUMP LIGHT ILLUMINATED IN FLIGHT. FOLLOWED EMERGENCY CHECKLIST AND LANDED. REMOVED CHIP PLUGS, CLEANED AND PERFORMED PENALTY RUN. FOUND SERVICEABLE.
- [SDR AC2A118979](https://openairdocs.org/sdr/AC2A118979.md): Stop · cracked · Mar 2, 2008 · N430CT · Bell 430 · Main Rotor System
  > STOP CRACKED IN RADIUS.
- [SDR 495](https://openairdocs.org/sdr/495.md): Magnetic Seal · leaking · Jan 20, 2008 · N430CT · Bell 430 · Turbine Engine Oil System
  > NOTICED FLUCTUATING ENGINE OIL PRESSURE ON NR 2 ENGINE. PULLED OUT AIRCRAFT EMERGENCY PROCEDURE CHECKLIST. FOLLOWED EMERGENCY PROCEDURE. OIL PRESSURE DECREASED BELOW 52.5± 2.5 PSI. SECURED NR 2 ENGINE. COMPLETED RUN ON LANDING ON THE GRASS STRIP AT INTRAC
- [SDR AC2A118178](https://openairdocs.org/sdr/AC2A118178.md): Engine · warning light · Nov 11, 2007 · N430CF · Bell 430 · Engine (Turbine/Turboprop)
  > DURING FLIGHT THE NR 2 ENGINE CHIP SCAV CAUTION LIGHT BEGAN TO FLICKER. NO FLUCTUATIONS IN EITHER ENGINE TEMP OR PRESSURE WERE NOTED. CONTINUED FLIGHT TO VENICE MONITORING ENGINE PARAMETERS.
- [SDR AC2A117289](https://openairdocs.org/sdr/AC2A117289.md): Pickup · inoperative · Aug 31, 2007 · N430CF · Bell 430 · Engine Integrated Instrument System
  > NR 1 ECU FAILED FIXED FLOW. AIRCRAFT WAS REPOSITIONING FOR TAKEOFF, AT A HOVER, THEN SET LIGHT ON SKIDS, PLACED INTO MANUAL MODE, THROTTLE REDUCED, SET FULL ON GROUND AND SHUTDOWN WITH NO FUTHER ISSUES.
- [SDR AC2A117123](https://openairdocs.org/sdr/AC2A117123.md): Transmission · making metal · Aug 27, 2007 · N430CH · Bell 430 · Main Rotor Gearbox
  > XMSN CHIP / CHP PLTRY GB ILLUMINATED IN FLIGHT 8 MINUTES AFTER DEPARTURE FROM ICY HELIPORT. AIRCRAFT RETURNED TO ICY WITHOUT INCIDENT.SMALL AMOUNT OF METAL WAS FOUND ON TRANSMISSION PLANETARY CHIP DETECTOR. COMPLIED WITH SERVICEABILITY CHECK OF TRANSMISSION.
- [SDR AC2A113419](https://openairdocs.org/sdr/AC2A113419.md): Sensor · malfunctioned · Jan 3, 2007 · N430CM · Bell 430 · Engine RPM Indicating System
  > NR 1 ENGINE NP2 RPM PICKUP MALFUNCTIONED/FAILED. INSTALLED SERVICABLE PART.
- [SDR AC2A113281](https://openairdocs.org/sdr/AC2A113281.md): Transmitter · failed · Dec 18, 2006 · N430CM · Bell 430 · Engine BMEP/Torque Indicating
  > SHORTLY AFTER TAKING OFF FROM ST37 I EXPERIENCED A NR 2 ECU FAILURE TO THE HIGH SIDE. FOLLOWED THE EMERGENCY CHECKLIST BY GOING TO MANUAL CONTROL OF NR 2 ENGINE AND RETURNED TO BASE WITHOUT FURTHER INCIDENT. THE MECHANICS DETERMINED THAT THE NR 2 ENGINE TORQU
- [SDR AC2A112008](https://openairdocs.org/sdr/AC2A112008.md): Actuator · malfunctioned · Oct 22, 2006 · N430CF · Bell 430 · Autopilot System
  > CAUSED NR 1 PITCH ERROR AND KICKED AFCS INTO SAS MODE, REPLACED ACTUATOR.
- [SDR AC2A110528](https://openairdocs.org/sdr/AC2A110528.md): Bearing · delaminated · Jul 27, 2006 · N427CU · Bell 427 · Main Rotor Head
  > FOUND DELAMINATED / REPLACED BEARING.
- [SDR AC2A110527](https://openairdocs.org/sdr/AC2A110527.md): Bearing · delaminated · Jul 27, 2006 · N427CU · Bell 430 · Main Rotor Head
  > FOUND DELAMINATED / REPLACED BEARING

Next page: https://openairdocs.org/engine/allison-250-c40b/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 = '250C40B'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/allison-250-c40b/reports

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