# Service difficulty reports: Allison 250-C30P A list on [Allison 250-C30P](https://openairdocs.org/engine/allison-250-c30p.md). Newest first. General aviation reporting is voluntary. Page 1 of 13 · 645 reports - [SDR EVCA2026100126](https://openairdocs.org/sdr/EVCA2026100126.md): Blower Motor · unserviceable · Sep 30, 2026 · N293AE · Bell 206L3 · Air Distribution Fan > ELECTRICAL SMELL WHEN AIR CONDITIONER IS TURNED ON. AFT BLOWER MOTOR WAS THE CAUSE. SYSTEM MEL'ED UNTIL A REPLACEMENT ARRIVES. - [SDR EVCA20261006001](https://openairdocs.org/sdr/EVCA20261006001.md): Switch · unserviceable · Sep 30, 2026 · N133AE · Bell 206L · Aircraft Fuel System > RAW FUEL ODOR IN CABIN AND COCKPIT AREAS IN FLIGHT. - [SDR EVCA202608250001](https://openairdocs.org/sdr/EVCA202608250001.md): Blower Motor · unserviceable · Aug 24, 2026 · N465AE · Bell 206L4 · Air Distribution Fan > BURNING ELECTRICAL ODOR IN THE CABIN. BLOWER MOTOR UNSERVICABLE. - [SDR 2026FA0000413](https://openairdocs.org/sdr/2026FA0000413.md): Check Valve · stuck · May 20, 2026 · N301J · Bell 206L4 · Turbine Engine Oil System > UPON REMOVAL OF THE OIL CHECK VALVE FOR ROUTINE TESTING, THE AMT NOTICED NO OIL FLOWED OUT OF THE LINE GOING TO THE 6&7 BEARING. THE CHECK VALVE WAS FOUND TO BE STICKING OPEN ALLOWING OIL TO FLOW BACK INTO THE GEARBOX WHICH COULD DELAY OIL FLOW TO THE BEARING - [SDR EVCA20251028001](https://openairdocs.org/sdr/EVCA20251028001.md): Fitting · installed · Oct 27, 2025 · N434AE · Bell 206L4 · Rotorcraft Tail Boom > UPPER L/H TAILBOOM ATTACHMENT FITTING CRACKED - [SDR EVCA20250603001](https://openairdocs.org/sdr/EVCA20250603001.md): Blower Motor · odor · Jun 2, 2025 · N130AE · Bell 206L1 · Air Distribution Fan > AC SMELLS LIKE BURNT ELECTRIC WHEN TURN ON - [SDR EVCA20250117001](https://openairdocs.org/sdr/EVCA20250117001.md): Stiffener · cracked · Jan 17, 2025 · N558AE · Bell 206L4 · Fuselage Main, Bulkhead > LH FS 145 & STIFFENER CLIP CRACKED - [SDR EVCA011720251](https://openairdocs.org/sdr/EVCA011720251.md): Stiffener · cracked · Jan 17, 2025 · N176AE · Bell 206L1 · Fuselage Main, Bulkhead > LH FS 145 & STIFFENER CLIP CRACKED - [SDR EVCA202501070020](https://openairdocs.org/sdr/EVCA202501070020.md): Bulkhead · cracked · Jan 7, 2025 · N479AE · Bell 206L4 · Fuselage Main, Bulkhead > RH FS 145 BULKHEAD & STIFFENER CLIP CRACKED - [SDR EVCA20241119001](https://openairdocs.org/sdr/EVCA20241119001.md): Skin · damaged · Nov 15, 2024 · N467AE · Bell 206L4 · Rotorcraft Tail Boom > BIRD STRIKE WHILE IN CRUISE FLIGHT RETURNING TO BASE. PILOT LANDED IN FIELD NEAR FORUM AR. AMT NOTED DAMAGE TO VERTICAL FIN LOWER LEADING EDGE. REPLACED VERTICAL STABILIZER - [SDR EVCA20241021001](https://openairdocs.org/sdr/EVCA20241021001.md): Fuel Line · worn · Oct 20, 2024 · N402AE · Bell 206L4 · Aircraft Fuel Distribution System > FUEL SMELL IN THE CABIN. FUEL LINE WAS FOUND TO HAVE A WORN FLARE THAT CAUSED IT TO SEEP. - [SDR EVCA202406240001](https://openairdocs.org/sdr/EVCA202406240001.md): Blade · cracked · Jun 24, 2024 · N271AE · Bell 206L3 · Main Rotor Blades > M/R BLADE INBOARD TRIM TABS CRACKED - [SDR EVCA20240426401](https://openairdocs.org/sdr/EVCA20240426401.md): Exhaust Stack · warped · Apr 24, 2024 · N420AE · Bell 206L4 · Engine Collector/Tailpipe/Nozzle > WARPING IN ENGINE EXHAUST STACK. - [SDR EVCA202404150001](https://openairdocs.org/sdr/EVCA202404150001.md): B-Nut · loose · Apr 11, 2024 · N192AE · Bell 206L1 · Aircraft Fuel Distribution System > CREW REPORTS STRONG FUEL SMELL IN AFT CABIN. FINDINGS: REMOVED CENTER AFT FACING SEAT PANEL AND ACCESS COVER TO GAIN ACCESS TO FUEL SYSTEM. FOUND FUEL SEEPING AT AFT B-NUT OF EJECTOR PUMP. TIGHTENED B-NUT AND PERFORMED LEAK CHECK WITH BOOST PUMPS ON WITH NO L - [SDR EVCA2024031800024](https://openairdocs.org/sdr/EVCA2024031800024.md): Switch · leaking · Mar 17, 2024 · N63AE · Bell 206L1 · Aircraft Fuel Distribution System > STRONG SMELL OF FUEL IN AIRCRAFT. - [SDR EVCA202402190024](https://openairdocs.org/sdr/EVCA202402190024.md): Unknown · odor · Feb 17, 2024 · N119AE · Bell 206L3 · Air Distribution System > STRONG FUEL SMELL IN AIRCRAFT ON STARTUP. AMT PULLED HAT RACK AND FUEL VALVE COVER, PERFORMED VISUAL INSPECTION AND NO LEAKS DETECTED. PERFORMED GROUND RUN AND LEAK CHECK OF ENGINE - NO LEAKS DETECTED. SIGNED OFF AS NO DISCREPANCIES NOTED. - [SDR EVCA202312040001](https://openairdocs.org/sdr/EVCA202312040001.md): Blade · cracked · Dec 4, 2023 · N416AE · Bell 206L4 · Main Rotor Blades > VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED - [SDR EVCA20231204002](https://openairdocs.org/sdr/EVCA20231204002.md): Blade · cracked · Dec 4, 2023 · N416AE · Bell 206L4 · Main Rotor Blades > VAN HORN M/R BLADE INBOARD AND OUTBOARD TRIM TAB CRACKED - [SDR EVCA202311090001](https://openairdocs.org/sdr/EVCA202311090001.md): Blade · cracked · Nov 8, 2023 · N460AE · Bell 206L4 · Main Rotor Blades > VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED - [SDR EVCA2023110931](https://openairdocs.org/sdr/EVCA2023110931.md): Blade · cracked · Nov 8, 2023 · N460AE · Bell 206L4 · Main Rotor Blades > VAN HORN M/R BLADE INBOARD TRIM TAB CRACKED - [SDR EVCA20230913001](https://openairdocs.org/sdr/EVCA20230913001.md): Motor · smoke · Sep 12, 2023 · N32AE · Bell 206L1 · Air Distribution Fan > SMOKE IN CABIN FROM AIR CONDITIONER. THE AMT ARRIVED AND INSPECTED THE SYSTEM. EVERYTHING WORKED AS ADVERTISED AND THEY RAN THE AIRCRAFT FOR 10 MINUTES WITH NO DEFECTS NOTED. THE CREW STATED THEY DID NOT SMELL ANYTHING. WE SUSPECT IT MAY HAVE BEEN BRUSH DU - [SDR EVCA2023083020](https://openairdocs.org/sdr/EVCA2023083020.md): Blade · unknown · Aug 29, 2023 · N1807 · Bell 206L4 · Main Rotor System > DISCOVERED PERPENDICULAR CRACK 104 INCHES FROM TIP CAP STARTING AT TRAILING EDGE RUNNING UP TO SPAR ON BELL MAIN ROTOR BLADE P/N 206-015-001-119 S/N VL00249530 - [SDR EVCA202308290023](https://openairdocs.org/sdr/EVCA202308290023.md): Collector · cracked · Aug 28, 2023 · N299AE · Bell 206L1 · Engine Collector/Tailpipe/Nozzle > TURBINE EXHAUST COLLECTOR HAS TWO-INCH CRACK LOCATED ON LH AFT SIDE OF COLLECTOR LOCATED 8.47 INCHES DOWN FROM EXHAUST DUCT MOUNTING FLANGE. - [SDR EVCA202306130001](https://openairdocs.org/sdr/EVCA202306130001.md): Intercostal · unknown · Jun 12, 2023 · N133AE · Bell 206L1 · Fuselage Structure (General) > CRACK FOUND ON TAILBOOM UPPER LEFT-HAND INTERCOSTAL - [SDR EVCA202305110001](https://openairdocs.org/sdr/EVCA202305110001.md): Hose · unknown · May 10, 2023 · N132AE · Bell 206L1 · Aircraft Fuel System > FUEL SMELL FROM AFT CREW COMPARTMENT. FOUND FUEL SEEPING AT DUAL EJECTOR PUMP OUTLET HOSE. TIGHTENED B-NUT ON HOSE. LEAK CHECK COMPLETED. - [SDR EVCA011720232](https://openairdocs.org/sdr/EVCA011720232.md): Heater · odor · Jan 15, 2023 · N132AE · Bell 206L1 · Heating System > WITH HEATER TURNED ON THERE IS FUEL SMELL IN CABIN. INSPECTED WITH NO ISSUES FOUND. GROUND RAN AND COULD NOT DUPLICATE. - [SDR EVCA01122023](https://openairdocs.org/sdr/EVCA01122023.md): Fuel Control · leaking · Jan 6, 2023 · N132AE · Bell 206L3 · Fuel Control/Reciprocating Engines > FUEL SMELL IN CABIN UPON TAKE OFF. FOUND FUEL SEEP AT FUEL CONTROL UNIT. - [SDR EVCA2023010300001](https://openairdocs.org/sdr/EVCA2023010300001.md): Hose · cracked · Jan 2, 2023 · N269AE · Bell 206L3 · Hydraulic System, Main > HOSE CRACKED AT THE ATTACHMENT FITTING CAUSING A LOSS OF HYDRAULIC FLUID AND THE LOSS OF HYDRAULIC ASSISTED FLIGHT CONTROLS. - [SDR EVCA2023010300002](https://openairdocs.org/sdr/EVCA2023010300002.md): Exhaust Duct · out of position · Jan 2, 2023 · N435AE · Bell 206L4 · Engine Collector/Tailpipe/Nozzle > CREW REPORTED FUEL/EXHAUST SMELL DURING FLIGHT. UPON FURTHER INVESTIGATION, IT WAS REPORTED THEY HAD A STRONG TAIL WIND AND THE SMELL THEY REPORTED WAS EXHAUST FUMES COMING FROM THE EXHAUST. WHEN THEY CHANGE DIRECTION, THE EXHAUST SMELL WENT AWAY. - [SDR EVCA202212090001](https://openairdocs.org/sdr/EVCA202212090001.md): Attach Fitting · cracked · Dec 8, 2022 · N164AE · Bell 206L4 · Rotorcraft Tail Boom > CRACK FOUND IN LT UPPER ATTACHMENT TAILBOOM FITTING DURING 100 HOUR INSPECTION. - [SDR EVCA202212010001](https://openairdocs.org/sdr/EVCA202212010001.md): Attach Fitting · cracked · Nov 30, 2022 · N48AE · Bell 206L1 · Rotorcraft Tail Boom > DURING COMPLETION OF AD 2013-25-10 INSPECTION FOUND THAT THE UPPER LEFT TAILBOOM ATTACHMENT FITTING WAS CRACKED. - [SDR EVCA20221115002](https://openairdocs.org/sdr/EVCA20221115002.md): Unknown · odor · Nov 13, 2022 · N539AE · Bell 206L4 · Air Distribution System > JET-A SMELL IN THE ACFT. INSPECTED AIRCRAFT FUEL SYSTEM FOR LEAKS NO DEFECTS NOTED AT THIS TIME, NO FUEL SMELL NOTED AT THIS TIME. ALL WORK IN REFERENCE WITH BHT206L4-MM-4 CHAPTER 28. - [SDR 2VKA202210050001](https://openairdocs.org/sdr/2VKA202210050001.md): Support · cracked · Sep 30, 2022 · N811SF · Bell 206L4 · Fuselage Miscellaneous Structure > CRACK FOUND IN VERTICAL TUNNEL WEB @ RBL 4.0 STA 87.5 WL 67.92. - [SDR EVCA202209290001](https://openairdocs.org/sdr/EVCA202209290001.md): Blower Motor · odor · Sep 27, 2022 · N355AE · Bell 206L4 · Air Distribution Fan > ELECTRICAL SMELL NOTED DURING FLIGHT. FOUND TO BE THE FORWARD AIR CONDITIONER BLOWER MOTOR. - [SDR EVCA202209160001](https://openairdocs.org/sdr/EVCA202209160001.md): Blower Motor · overheated · Sep 13, 2022 · N88AE · Bell 206L4 · Air Distribution System > INTERMITTENT ELECTRICAL FUMES IN CABIN AND COCKPIT IN CRUISE FLIGHT. AIR CONDITIONER AFT EVAPORATOR BLOWER MOTOR OVERHEATING. - [SDR EVCA091222](https://openairdocs.org/sdr/EVCA091222.md): A/C Pack · smoke · Sep 9, 2022 · N886AE · Bell 206L4 · Cabin Cooling System > AIR CONDITIONER SYSTEM PRODUCING WHITE SMOKE IN CABIN WITH ACCOMPANYING BURNING SMELL. - [SDR EVCA0622222](https://openairdocs.org/sdr/EVCA0622222.md): Motor · inoperative · Jun 22, 2022 · N435AE · Bell 206L4 · Air Distribution System > STRONG ELECTRICAL SMELL IN AIRCRAFT IN FLIGHT. - [SDR EVCA062222](https://openairdocs.org/sdr/EVCA062222.md): Inverter · inoperative · Jun 20, 2022 · N88AE · Bell 206L4 · Air Conditioning System > SHARP ACRID ELECTRICAL SMELL IN COCKPIT & CABIN 20 MIN INTO FLIGHT, EXECUTED PRECAUTIONARY LANDING AT AEL 26; NO CHANGE IN ANY ELECTRICAL INSTRUMENTS. REMOVED INVERTER PN: MD50, SN: L12-10852 AND REPLACED WITH SAME PN, SN: J15-11274 AS PER REF A.C. INVERTER - [SDR EVCA0622221](https://openairdocs.org/sdr/EVCA0622221.md): Wire · melted · Jun 20, 2022 · N88AE · Bell 206L4 · Air Conditioning System Wiring > BURNT ELECTRICAL SMELL IN CABIN AREA. AIR CONDITIONER AFT EVAPORATOR BLOWER WIRE SPLICE OVERHEATED AND MELTED AT RESISTOR. - [SDR 2022F00242](https://openairdocs.org/sdr/2022F00242.md): Freewheel Unit · failed · May 18, 2022 · N910BR · Bell 206B3 · Engine/Transmission Coupling > THE FREEWHEELING UNIT WAS FAILING CAUSING THE MAIN GEARBOX CHIP LIGHT TO INTERMITTENTLY ILLUMINATE. WHEN THE CHIP DETECTORS WERE INSPECTED THERE WAS NO METAL NOTED. NOTHING APPEARED IN THE OIL FILTER OR SCREEN DURING THE SERVICEABILITY CHECK. - [SDR 8MHR021465AE](https://openairdocs.org/sdr/8MHR021465AE.md): Diffuser · separation · Dec 21, 2021 · Bell 206L4 · Turbine Engine Compressor Section > FORWARD PLATE SEPARATED FROM VANE SEGMENT - [SDR 8MHR021404AE](https://openairdocs.org/sdr/8MHR021404AE.md): Diffuser · separation · Nov 1, 2021 · Bell 206L4 · Turbine Engine Compressor Section > FORWARD PLATE SEPARATED FROM VANE SEGMENTS. - [SDR EVCA202107070002](https://openairdocs.org/sdr/EVCA202107070002.md): Motor · failed · Jun 30, 2021 · N68AE · Bell 206L1 · Air Distribution Fan > AFT BLOWER MOTOR BEGAN TO GET HOT AND PUT OFF A BURNT SMELL. THE SYSTEM WAS INSPECTED AND NO EVIDENCE OF BURNING WAS - [SDR EVCA20200901001](https://openairdocs.org/sdr/EVCA20200901001.md): Engine · flamed out · Aug 30, 2020 · N59AE · Bell 206L1 · Engine (Turbine/Turboprop) > DURING A ROUTINE AUTO ROTATION SPEED CHECK FOLLOWING TRACK AND BALANCE VERIFICATION, THE ENGINE OUT LIGHT CAME ON AND THE ENGINE FLAMED OUT. THE IDLE DETENT WAS NOT PASSED. THE AUTO ROTATION WAS CONTINUED WITH A SUCCESSFUL RUN ON LANDING PERFORMED. - [SDR EVCA202003061](https://openairdocs.org/sdr/EVCA202003061.md): Line · separated · Mar 4, 2020 · N32AE · Bell 206L1 · Powerplant System > DURING FLIGHT, THE AIRCRAFT EXPERIENCED POWER LOSS RESULTING IN A HARD LANDING. UPON INSPECTION OF THE AIRCRAFT, THE PC LINE PN: 23065814 FROM THE COMPRESSOR SCROLL TO PC FILTER HAD CRACKED AND SEPARATED AT A WELD POINT. - [SDR EVCA201911121](https://openairdocs.org/sdr/EVCA201911121.md): Tube · cracked · Nov 12, 2019 · N1821 · Bell 206L4 · Pneumatic Distribution System > BY VISUAL INSPECTION, FOUND PG AIR LINE FROM ACCUMULATOR TO FUEL CONTROL CRACKED APPROXIMATELY HALF THE CIRCUMFERENCE AND 1/2 INCH FROM FITTING. - [SDR IAVA2019101600001](https://openairdocs.org/sdr/IAVA2019101600001.md): Skin · cracked · Oct 16, 2019 · N170AM · Bell 206L3 · Rotorcraft Tail Boom > CRACK ON UPPER TAIL BOOM SKIN AT STATION 172 FROM 3RD RIVET FORWARD OF CASTING ON SKIN SPLICE SEAM TO 4TH RIVET AT TAIL ROTOR GEARBOX CASTING ATTACHMENT RIVET LINE. - [SDR IAVA2019072900001](https://openairdocs.org/sdr/IAVA2019072900001.md): Panel · cracked · Jul 29, 2019 · N177AL · Bell 206L4 · Fuselage Miscellaneous Structure > DURING POST FLIGHT INSPECTION FOUND CRACK IN ROOF. LEFT AFT CORNER FROM RIVET HOLE WHERE ROOF ATTACHES TO ROLL OVER BULKHEAD. CRACK WAS VERIFIED BY DYE PENETRANT. DURING REMOVAL OF ROOF FOUND CORROSION ON RIGHT HAND AFT CORNER. - [SDR CA190607012](https://openairdocs.org/sdr/CA190607012.md): Stabilizer · broken · Jun 1, 2019 · Bell 206L4 · Rotorcraft Tail Boom > (CAN) IT WAS REPORTED TO BELL: VERTICAL FIN BROKE IN FLIGHT, FOLDED ON THE RH SIDE OF THE SHIP. SHIP FLIGHT TIME 16,000 HOUR +/-. (TC# 20190607012) - [SDR CA190528020](https://openairdocs.org/sdr/CA190528020.md): Blade · damaged · May 27, 2019 · Bell 206L4 · Main Rotor Blades > (CAN) DURING A ROUTINE DAILY INSPECTION OF A BELL 206L-4 THE PILOT/ENGINEER NOTED THAT A COVER PLATE ON THE BOTTOM OUTBOARD END OF ONE OF THE MAIN ROTOR BLADES HAD BECOME DEFORMED AND BULGED AWAY FROM THE BLADE. UPON CLOSER INSPECTION IT WAS NOTED THAT IT LOOK Next page: https://openairdocs.org/engine/allison-250-c30p/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 = '250C30P' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/engine/allison-250-c30p/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.