# Service difficulty reports: Beechcraft B300C

A list on [Beechcraft B300C](https://openairdocs.org/model/beechcraft-b300c.md).

Newest first. General aviation reporting is voluntary.

- [SDR 2026FA0000072](https://openairdocs.org/sdr/2026FA0000072.md): Sensor · faulted · Feb 3, 2026 · N65RF · Beech B300C · Hydraulic Indicating System
  > DURING PREFLIGHT CHECKS, THE TEST FEATURE OF THE LIQUID LEVEL SENSOR WAS ACTIVATED & TESTED IAW THE BEFORE START CHECKLIST RESULTING IN A GOOD ACTIVATION TEST WITH A CAS MESSAGE ON THE MFD REPORTING HYD LOW LEVEL AS IT SHOULD. THE TEST FUNCTION WAS DEACTIVATED
- [SDR NOZR72024B](https://openairdocs.org/sdr/NOZR72024B.md): Bleed Valve · failed · Jul 3, 2024 · N74NG · Beech B300C · Compressor Bleed Valve
  > THE FLIGHT CREW REPORTED THE NO:1 ENGINE BEGAN POPPING AND LOST 50% OF ITS POWER 11 MINUTES AFTER TAKEOFF. AN UNSCHEDULED LANDING WAS PERFORMED AT THE DEPARTURE AIRPORT - NO INJURIES OR EQUIPMENT DAMAGED RESULTED FROM EPISODE. UPON FURTHER INVESTIGATION, THE D
- [SDR 2022F00134](https://openairdocs.org/sdr/2022F00134.md): Oxygen Bottle · faulty · Feb 26, 2022 · N350MC · Beech B300C · Portable Oxygen System
  > OVER THE COURSE OF 24 HOURS LIQUID OXYGEN CONVERTOR EXPELLED ALL LIQUID OXYGEN DUE TO A FAULTY VENT RELIEF VALVE.
- [SDR 2021FA0000013](https://openairdocs.org/sdr/2021FA0000013.md): Relay · failed · Jan 18, 2021 · N517K · Beech B300C · Fuel Indicating System
  > FUEL SYSTEM INDICATION FOR MAIN/AUX/ER GOES THRU K1 RELAY PN M5757/1-021 BEHIND FUEL PANEL. NEW RELAY SAME PART NUMBER ARE BEING SOLD WITH AN INCORRECT DRAWING OF CONTACTS, POSSIBLY INTERNALLY MISWIRED OR BOTH. UPON INSTALLING NEW CIRCUIT BREAKERS IMMEDIATEL
- [SDR 2020FA0000561](https://openairdocs.org/sdr/2020FA0000561.md): Actuator · corroded · Dec 22, 2020 · N814A · Beech B300C · Landing Gear Actuator
  > LT MAIN GEAR RETRACT ACTUATOR FOUND CORRODED THRU CHROME COATING NEAR ATTACH END WERE EXPOSED WITH GEAR IN THE RETRACTED POSITION. NEW VERSION OF ACTUATOR HAS CHROME ALL THE WAY TO THE END OF THE SHAFT INSTEAD OF LEAVING A PARTIAL METAL TO CHROME EDGE WHICH W
- [SDR 15MA202012070001](https://openairdocs.org/sdr/15MA202012070001.md): Heater · failed · Dec 4, 2020 · N350MC · Beech B300C · Emergency Equipment
  > WHILE DOING A PATIENT FLIGHT AT APPROXIMATELY 16:45 CENTRAL TIME, AIRCRAFT TOTAL TIME OF 2872.2 ONE OF OUR FLIGHT NURSES STARTED MENTIONING HOW OUR MEDICAL BED FELT RATHER WARM. AS I LOOKED BACK INTO THE CABIN I NOTICED A FAINT HAZE. THE FLIGHT NURSE STARTE
- [SDR CA190807002](https://openairdocs.org/sdr/CA190807002.md): Heater · malfunctioned · Jul 26, 2019 · Beech B300C · Pitot/Static Anti-Ice System
  > (CAN) FOLLOWING RETURN FROM A MISSION THE PILOTS OF B300C AIRCRAFT, REPORTED THAT THE RIGHT SIDE PITOT HEAT WAS INOPERATIVE. MAINTENANCE CARRIED OUT TROUBLESHOOTING AND DISCOVERED THAT THE PITOT HEAT POWER WIRE H3B20 LOCATED FORWARD OF THE NOSE PRESSURE BULKH
- [SDR 2018FA0000320](https://openairdocs.org/sdr/2018FA0000320.md): Wire Harness · out of position · Aug 1, 2018 · N610A · Beech B300C · Electrical Power System Wiring
  > WIRE CABLE BUNDLE ON LEFT SIDE OF CENTER PEDESTAL INTERFERING WITH ENGINE CONTROLS BY ABRAIDING ON PUSH-PULL TUBES. INCORRECT ROUTING?
- [SDR CA180808025](https://openairdocs.org/sdr/CA180808025.md): Compressor · failed · Jul 25, 2018 · Beech B300C · Cabin Compressor System
  > (CAN) AIR CONDITIONING COMPRESSOR P/N 201-0450-3 FAILURE, 73.5 HRS FROM INSTALLATION. DEFECT REPORTED: `AIR CONDITIONING NOT COOLING` AIR CONDITIONING COMPRESSOR FOUND TO HAVE A FREEWHEELING CLUTCH, SUSPECTED THAT THE COMPRESSOR SEIZED. THE AIR CONDITIONING
- [SDR CA180808024](https://openairdocs.org/sdr/CA180808024.md): Compressor · failed · Jun 27, 2018 · Beech B300C · Cabin Compressor System
  > (CAN) AIR CONDITIONING COMPRESSOR P/N 201-0450-3 FAILURE, 15.7 HRS FROM INSTALLATION. DEFECT REPORTED: `AIR CONDITIONING NOT WORKING` AIR CONDITIONING COMPRESSOR FOUND TO HAVE FAILED. THE AIR CONDITIONING COMPRESSOR WAS REMOVED AND THE SYSTEM FLUSHED IN ACCO
- [SDR CA180808020](https://openairdocs.org/sdr/CA180808020.md): Display · failed · Jun 17, 2018 · Beech B300C · Integrated Flight System
  > (CAN) ROCKWELL COLLINS PROLINE FUSION EQUIPPED AIRCRAFT, ADAPTIVE FLIGHT DISPLAY AFD-3700. DEFECT REPORTED AS `NUMEROUS ERRONEOUS CAS MESSAGES SHOWING UP ON RETURN TO YEG, UNCOMMANDED FLL CHANGE FROM 160 TO 99 IN CLIMB OUT OF YQU`. AFD 2 DETERMINED TO HAVE F
- [SDR CA180808023](https://openairdocs.org/sdr/CA180808023.md): Compressor · failed · Jun 5, 2018 · Beech B300C · Cabin Compressor System
  > (CAN) AIR CONDITIONING COMPRESSOR P/N 201-0450-3 FAILURE ON AN AIRCRAFT WITH UNDER 400 HRS FROM NEW. DEFECT REPORTED: `AIR CONDITIONING FOUND TO NOT BE BLOWING COOL AIR` AIR CONDITIONING COMPRESSOR FOUND TO HAVE FAILED. A NEW COMPRESSOR WAS INSTALLED, SAME P
- [SDR Q5QA2016060300001](https://openairdocs.org/sdr/Q5QA2016060300001.md): Skin · cracked · Jun 3, 2016 · N350MC · Beech B300C · Wing, Plate/Skin
  > WITH ONLY 240.4 HRS TT ON ACFT, CRACKS WERE DISCOVERED ON THE RT T/E OF THE WING. THE UPPER SKIN WAS CRACKED IN 2 PLACES AT THE OTBD END. THE LOWER SKIN WAS CRACKED AT THE OTBD END. AFTER THE SKINS WERE REMOVED A CRACK WAS DISCOVERED IN THE OTBD RIB AND THE
- [SDR J8UR20151228001](https://openairdocs.org/sdr/J8UR20151228001.md): Pin · out of position · Dec 18, 2015 · N50056 · Beech B300C · Rudder Tab Control System
  > PULLEY GUARD PIN, PN NAS427K-20, MIGRATED OUT OF THE LOCKING POSITION OF THE PULLEY ASSY FOR THE RUDDER TRIM CABLE, CAUSING A CONDITION THROUGH THE VIBRATION OF FLIGHT AND GROUND OPERATION OF THE CABLES COMING OFF OF THE PULLEYS AND CROSSING FROM ONE PULLEY TO
- [SDR 2015FA0000472](https://openairdocs.org/sdr/2015FA0000472.md): Placard · inaccurate · Oct 1, 2015 · N716A · Beech B300C · Placards and Markings
  > AUXILIARY FUEL TANK PLACARDS FROM OEM REFLECT STANDARD CONFIGURATION WHEN ACFT ARE EQUIPPED WITH EXTENDED RANGE TANKS. ALSO, MLG PLACARDS FROM OEM REFLECT STANDARD LANDING GEAR HEIGHT RANGE WHEN HIGH FLOTATION GEAR ARE INSTALLED, 4.5"-5.0" STANDARD GEAR VS 5.
- [SDR 2014FA0000256](https://openairdocs.org/sdr/2014FA0000256.md): Warning Light · illuminated · Apr 16, 2014 · N561A · Beech B300C · Engine (Turbine/Turboprop)
  > AFTER ENGINE START, PILOT NOTICED CHIP LIGHT ON NR 2 ENGINE, SHUTDOWN.
- [SDR CA140115002](https://openairdocs.org/sdr/CA140115002.md): Downlock Switch · failed · Jan 13, 2014 · Beech B300C · Landing Gear Position and Warning
  > (CAN) DURING A ROUTINE FLIGHT THE PILOTS REPORTED THAT THE LANDING GEAR INDICATION CIRCUIT BREAKER TRIPPED. UPON INSPECTION BY MAINTENANCE PERSONNEL IT WAS DISCOVERED THAT THE WIRING HARNESS OF THE LT LANDING GEAR DOWNLOCK MICROSWITCH, PN 101-364628-1 WAS WOR
- [SDR CA131212001](https://openairdocs.org/sdr/CA131212001.md): Switch · out of adjust · Dec 11, 2013 · Beech B300C · Door Warning System
  > (CAN) THE ACFT DEPARTED FOR A ROUTINE MEDI-VAC AND UPON LEVELING AT 240, THE DOOR UNLOCK ANNUNCIATOR ILLUMINATED. THE CREW ELECTED TO RETURN TO MAIN BASE AND THE ACFT LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED AN INSPECTION AND DISCOVERED THE CARGO DOOR
- [SDR CA131009003](https://openairdocs.org/sdr/CA131009003.md): Hose · chafed · Oct 8, 2013 · Beech B300C · Air Distribution System
  > (CAN) WHILE CONDUCTING THE PHASE 3, 600 HR INSPECTION MAINTENANCE DESCOVERED THAT THE AIR CONDITIONING PLUMBING HOSES, PART NR 300-0872-1 AND 300-0873-1, IPC REF 21-52-00-02 ITEM VIEW D FOUND TO BE TO CHAFING ON THE AIR CONDITIONING BLOWER UNIT.
- [SDR CA130501001](https://openairdocs.org/sdr/CA130501001.md): Skin · cracked · Apr 29, 2013 · Beech B300C · Wing, Plate/Skin
  > (CAN) DURING MAINTENANCE, A CRACK WAS FOUND IN THE T/E OF THE LT WING AT WS 148 APPROXMATE 6" AFT OF THE REAR SPAR. THE CRACK IS JUST OVER 2.5" LONG IN SKIN, PN 50-110028-16. ALSO STIFFENER PN 50-11028-12 IS CRACKED ON THE INSIDE OF THE WING IN THIS SAME AREA
- [SDR CA130211002](https://openairdocs.org/sdr/CA130211002.md): Strut · damaged · Feb 1, 2013 · Beech B300C · Main Landing Gear Strut/Axle/Truck
  > (CAN) DURING INSPECTION, MAINTENANCE FOUND THAT THE RT MLG STRUT PISTON HAD DAMAGE TO THE CHROME AREA, WITH SCORING AND CHROME MISSING FROM THE PISTON. PISTON WAS R & R USING HBC KIT PN 130-8001-003 AND PN 60-38-4016-50 PISTON RING, AND PN 8-335N300-90, BAC
- [SDR CA121017013](https://openairdocs.org/sdr/CA121017013.md): Engine · shutdown · Oct 4, 2012 · Beech B300C · Engine (Turbine/Turboprop)
  > (CAN) AIRCRAFT EXPERIENCED AN IFSD.
- [SDR CA120621001](https://openairdocs.org/sdr/CA120621001.md): Hinge · cracked · Jun 14, 2012 · Beech B300C · Fuselage, Door Hinge
  > (CAN) DURING AN AFTER FLIGHT WALK AROUND, NOTICED THAT THE LT NLG REAR DOOR HINGE WAS BEGINNING TO SEPARATE FROM THE DOOR SKIN. UPON CLOSER INSPECTION, THE HINGE WAS CRACKED ON ONE OF THE UPPER HOLES. THE DOOR WAS REMOVED AS WELL AS THE HINGE ASSEMBLY. A NE
- [SDR J8UR20120326002](https://openairdocs.org/sdr/J8UR20120326002.md): Handpump · malfunctioned · Mar 23, 2012 · N6241L · Beech B300C · Hydraulic Pump, Auxiliary
  > DURING EMERGENCY LANDING GEAR OPERATIONAL AND FUNCTIONAL (GROUND) CHECK, EMERGENCY HANDPUMP HANDLE SEPERATED FROM PUMP HOUSING. (SNAP-RING THAT HOLDS PISTON ASSEMBLY INTO THE HAND PUMP ASSEMBLY DISENGAGED, CAUSING HAND PUMP ASSY TO COME APART DURING OPERATION)
- [SDR J8UR20120118001](https://openairdocs.org/sdr/J8UR20120118001.md): Pressure Switch · failed · Jan 18, 2012 · N6360K · Beech B300C · Propeller Feathering/Reversing
  > PROPELLER AUTO-FEATHER DOES NOT TEST DURING GROUND AND PRE-FLIGHT ENGINE RUNS. GROUND IDLE SOLENOID FAILS TO OPERATE PROPERLY.
- [SDR J8UR20111219001](https://openairdocs.org/sdr/J8UR20111219001.md): Connector · chafed · Dec 19, 2011 · N6321R · Beech B300C · Nacelle/Pylon System Wiring
  > RT FUEL SHUT-OFF VALVE ELECTRICAL CONNECTOR IS COMING IN CONTACT WITH ACCESS PANEL NUTPLATE ON RT NACELLE (PANEL NR 5RH). THE CLOSE PROXIMITY OF THE FIREWALL ELECTRICAL CONNECTOR AND THE ACCESS PANEL NUTPLATE CAUSED WIRING TO BECOME CHAFED. NUTPLATE PROTRUDE
- [SDR 2011FA0000209](https://openairdocs.org/sdr/2011FA0000209.md): Bulkhead · chafed · Mar 17, 2011 · Beech B300C · Fuselage Main, Bulkhead
  > DURING THE FIRST PHASE INSPECTION OF BUNO 168204 (FM-27), IT WAS DISCOVERED THAT THE ELEVATOR TRIM CABLE AND TURNBUCKLE WAS RUBBING ON A BULKHEAD AT STATION 412.5. THE ADDITIONAL 5 AIRCRAFT WERE INSPECTED, AND A TOTAL OF 5 AIRCRAFT OUT OF THE FLEET OF 6 EXHIBI
- [SDR 2011FA0000182](https://openairdocs.org/sdr/2011FA0000182.md): Control Cable · binding · Mar 17, 2011 · N927KA · Beech B300C · Elevator Tab Control System
  > ACFT WAS MODIFIED IAW STC SA00047MC BY A REPAIR STATION ON MAY 28, 2010. DURING THE FIRST PHASE INSP AT 200 HRS, IT WAS DISCOVERED THAT THE ELEVATOR TRIM CABLE TURNBUCKLE WAS DRAGGING ON THE BULKHEAD INSTALLED AT STA 414 AS PART OF THIS STC. THIS REPORT IS TO
- [SDR AOC04006](https://openairdocs.org/sdr/AOC04006.md): Compressor · damaged · Aug 18, 2004 · N8230Q · Beech B300C · Cabin Compressor System
  > PILOT REPORTED FREON AIR CONDITIONING SYSTEM INOPERATIVE FOLLOWING A FLIGHT. FOUND COMPRESSOR CLUTCH PLATE HAS SEPARATED FROM THE COMPRESSOR AND WAS FOUND IN THE LOWER ENGINE COWL. FIRE SLEEVE ON OIL LINE FROM THE OIL COOLER HAD IMPACT DAMAGE (SLEEVE CUT) BU
- [SDR 2003FA0000862](https://openairdocs.org/sdr/2003FA0000862.md): Panel · departed · Aug 21, 2003 · Beech B300C · Wing, Plate/Skin
  > WING BOLT PANEL DEPARTED AIRCRAFT WHILE IN FLIGHT. THIS IS THE THIRD OCCURANCE ON THREE DIFFERENT AC IN APPROXIMATELY ONE MONTH. INSPECTION REVEALED THE THE SPRING TAB HAD FAILED. RECOMMEND CLOSE INSPECTION OF THIS PANEL AT EACH PHASE INSPECTION.
- [SDR AU000879](https://openairdocs.org/sdr/AU000879.md): Diode · shorted · Sep 15, 2000 · Beech B300C · Passenger Oxygen System
  > (AUS) CABIN OXYGEN CONTROL SOLENOID TRANSIENT VOLTAGE SUPPRESSION DIODE SHORT CIRCUITED. FAILURE OF PASSENGER OXYGEN MASK AUTOMATIC DEPLOYMENT. (X)
- [SDR 99ZZZX1365](https://openairdocs.org/sdr/99ZZZX1365.md): Frame · cracked · Mar 8, 1999 · N55947 · Beech B300C · Passenger/Crew Doors
  > UPON REMOVAL OF THE CABIN DOOR SEAL, FOUND SEVERE CORROSION AND A 9 INCH CRACK IN THE DOOR STEEL STRUCTURE JUST BELOW THE SEAL RETAINER NEAR THE AFT SIDE OF THE HINGE AREA. AIRCRAFT TT: 2,441.4 HOURS.
- [SDR 98ZZZX1101](https://openairdocs.org/sdr/98ZZZX1101.md): Skin · cracked · Mar 2, 1998 · N82324 · Beech B300C · Wing, Plate/Skin
  > RIGHT WING UPPER SURFACE JUST OUTBOARD OF WING ATTACH BETWEEN FRONT AND REAR SPARS, WS 124.6 WAS FOUND WRINKLED AND CRACKED DURING A PHASE 2 INSPECTION. LOG BOOK HISTORY SHOWS A WRINKLE WAS FIRST NOTICED (10-27-93) (TT 151 HOURS) AND WAS FOUND OK FOR SERVICE
- [SDR 98ZZZX482](https://openairdocs.org/sdr/98ZZZX482.md): Valve · damaged · Jan 20, 1998 · N80605 · Beech B300C · Fuel Storage
  > DURING AIRCRAFT REFUELING WHEN THE NOZZLE IS INSERTED INTO THE FUEL FILLER, IT OPENS THE ANTI-SYPHON VALVE FLAPPER DOOR (SPRING LOADED) AND EXTENDS INTO THE TANK AREA. THE AREA OF ANTI-SYPHON VALVE THAT THE FLAPPER DOOR SEALS AGAINST IS CALLED THE PAN. THIS P

## 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 aircraft_model_key = 'B300C'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/beechcraft-b300c/reports

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