Boeing-Vertol 234

Service difficulty reports · 117

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 aircraft_model_key = '234'
  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.

SDR 97ZZZX4342Fire Bottle · dischargedAIRCRAFT WAS ON HELIPAD WHEN THE FIRE BOTTLE DISCHARGED. INVESTIGATION REVEALED THE THERMAL RELIEF VALVE HAD ACTIVATED AND BOTTLE PRESSURE WAS ZERO. THE SKIN OF THE ACFT IS VERY CLOSE TO THE BOTTLE AND IS PAINTED BLACK ON THE OUTSIDE AND IN A POSITION OF DIRSep 5, 1997 · N2FOR · Boeing 234 · Fire Bottle, FixedSDR CHI1916Computer · malfunctionA YAW KICK WAS FELT IN-FLIGHT. THE KICK WAS ISOLATED TO THE NR 2 AFCS SYSTEM. SUBSEQUENT TROUBLESHOOTING REVEALED THE PROBLEM TO BE THE NR 2 AFCS COMPUTER CAUSING THE YAW KICK. A SECOND SPARE COMPUTER WAS INSTALLED IN NR 2 POSITION AND THE SAME PROBLEM WAS TAug 21, 1997 · N2FOR · Boeing 234 · Autopilot ComputerSDR 97ZZZX3793Hub · crackedCRACK DISCOVERED DURING POST-FLIGHT INSPECTION. CRACK ON TOP SURFACE OF CENTER SECTION BETWEEN RESERVOIR MOUNT HOLE AND TIE BAR BOLT ACCESS HOLE. EXTENDS THROUGH RESERVOIR HOLE DOWN INTO WEB OF CENTER SECTION. ROTOR HUB OPERATED ON MJ022 IN 'LR' CONFIGURATIAug 14, 1997 · N2FOR · Boeing 234 · Main Rotor HeadSDR CA970707007Turbine Rotor · blade fractured(CAN) ENGINE WAS SHUTDOWN IN FLIGHT AND AIRCRAFT RETURNED TO POINT OF DEPARTURE. INSPECTION FOUND COMPRESSOR BLADE FROM THE FIRST TURBINE ROTOR HAD SEPARATED AND DAMAGED ADJACENT BLADES.Jun 23, 1997 · Boeing 234 · Turbine SectionSDR CHI1801Pin · slippedROTOR HEAD WAS INSPECTED WHILE IN THE SHOP FOR ROUTINE MAINTENANCE. IT WAS NOTED THAT THE YELLOW ARM WAS STIFF WHEN MOVED DOWN ITS HORIZONTAL AXIS (FLAPPING). DISASSEMBLY SHOWED THE LAG BEARING RACE ON THE HORIZONTAL PIN HAD MOVED OUTBOARD TILL IT TOUCHED THJun 3, 1997 · Boeing 234 · Main Rotor HeadSDR CHI1773Sleeve · brokenTHE HORIZONTAL HINGE PIN WAS REMOVED FOR A LEAKING SEAL. THE HINGE PIN WAS REMOVED AND THE LEADING SLEEVE REMAINED IN THE BEARING. THE SLEEVE WAS SPLIT AND THE BEARING WAS REMOVED WITH THE SLEEVE STILL INSTALLED. A NEW BEARING AND HORIZONTAL HINGE PIN WERE Apr 28, 1997 · N239CH · Boeing 234 · Main Rotor HeadSDR CHI1514Bearing · failedPOST-FLIGHT CHECK REVEALED BLACK GREASE RUBBER AND WIRE FRAGMENTS COMING OUT OF THE GAP BETWEEN THE STATIONARY RING AND THE ROTATING RING. UNIT WAS REMOVED AND REPLACED. DISASSEMBLY OF SWASHPLATE SHOWED THE WIRE CAGE SEPARATOR HAD BROKEN UP. PAST FAILURES HDec 15, 1995 · N239CH · Boeing 234 · Main Rotor Mast/SwashplateSDR CHI1513Carrier · crackedTHE AFT TRANSMISSION WAS REMOVED FOR MAKING CHIPS. THE UPPER HOUSING WAS DISASSEMBLED TO INSPECT THE CARRIER BEARINGS FOR SOURCE OF CHIPS. A SPALLED BEARING WAS FOUND. A VISUAL INSPECTION OF THE SECOND STAGE CARRIER DISCOVERED A CRACK. (X)Nov 7, 1995 · N234CH · Boeing 234 · Main Rotor GearboxSDR CHI1512Engine · damagedINFLIGHT ENGINE SHUT-DOWN DURING LOGGING OPERATION. NO VISIBLE DAMAGE TO INLET OF ENG OR FIRST STAGES OF COMPRESSOR. COMPR WOULD ROTATE, BUT WITH DIFFICULTY, & RUBBING NOISES. VISIBLE DMG TO EGV & NR 4 TURBINE WHEEL. PT WOULD NOT TURN. NO VISIBLE DMG TO COct 26, 1995 · N234CH · Boeing 234 · Turbine SectionSDR CHI1488Computer · failedAT MORNING START-UP DURING THE AFCS CHECK, WHEN THE AFCS WAS TURNED ON, THE ROLL EXTENSIBLE LINK STARTED MOVING ERRATICALLY. THE PROBLEM WAS ISOLATED TO THE NR 1 AFCS, AT THIS TIME, THE ROLL LINK STARTED MOVING MORE ERRATICALLY UP AND DOWN. UPON FURTHER TROUAug 27, 1995 · N239CH · Boeing 234 · Autopilot ComputerSDR CHI1477Switch · brokeDURING REMOVAL OF ENGINE SCREEN AND NOSE BOX COWL, NOTICED NR 1 ENGINE TRANSMISSION TEMP SWITCH WAS HANGING BY THE CANNON PLUG WHERE IT HAD BROKEN IN HALF AT THE WELDED SEAM. NO SIGN OF LEAKAGE. CAUSE UNKNOWN. (X)Aug 21, 1995 · N2FOR · Boeing 234 · Turbine Engine Reduction GearSDR CHI1478Switch · brokenPILOTS REPORTED INTERMITTENT NR 1 ENGINE TRANSMISSION HOT LIGHT. DURING TROUBLESHOOTING, FOUND M2001-517 TEMP SWITCH BROKE IN HALF AND WIRES PULLED OUT AT CANNON PLUG. REPLACED TEMP SWITCH AND CANNON PLUG. CHECKED GOOD. CAUSE UNKNOWN. SUBMITTER SUGGESTS POAug 8, 1995 · N239CH · Boeing 234 · Turbine Engine Reduction GearSDR CHI1429Bearing · spalledSPALLED BALL AND OUTER RACE. AFT TRANSMISSION WAS REMOVED FOR MAKING CHIPS. FOUND SPALLED BALLS AND OUTER RACE ON FAN DRIVE HOUSING ASSEMBLY BEARING. (X)Feb 16, 1995 · N237CH · Boeing 234 · Main Rotor GearboxSDR CHI1428Bearing · spalledSPALLED ROLLERS. AFT TRANSMISSION WAS REMOVED FOR MAKING CHIPS. FOUND SPALLED ROLLERS ON THE SECOND STAGE PLANET BEARING. (X)Feb 16, 1995 · N237CH · Boeing 234 · Main Rotor GearboxSDR CHI1427Bearing · spalledSPALLED ROLLER. THE TRANSMISSION WAS REMOVED FOR MAKING CHIPS. FOUND INPUT PINION BEARING ROLLERS SPALLED. (X)Feb 16, 1995 · N237CH · Boeing 234 · Main Rotor GearboxSDR CHIR1425Clutch Shaft · bearing damagedON AND OFF THRUST LOADING OF THE INNER CLUTCH SHAFT CAUSES AXIAL MOVEMENT OF THE SHAFT. AS THE ALUMINUM SPACERS (PN 414D6215-1 AND PN 114D6261-1) WEAR, THE AXIAL MOVEMENT INCREASES UNTIL THE INNER SHAFT SHOULDER NEXT TO THE PN 114DS661-1 BEARING CONTACTS THE Feb 15, 1995 · N237CH · Boeing 234 · Main Rotor GearboxSDR CHI1426Bearing · pittedBEARING ROLLERS BREAKING DOWN AFTER SHORT PERIOD OF RUNNING TIME. PITTING WAS THE RESULT OF THE FATIGUE ON THE BEARING ROLLERS. WONDER IF THE ADDITION OF THE COPPER PLATING ON THE ID OF THE BEARING WAS TAKEN INTO ACCOUNT FOR THE OVERALL FITS AND CLEARANCES BFeb 15, 1995 · N237CH · Boeing 234 · Main Rotor Gearbox
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