Lycoming IO-540-AE1A5

Service difficulty reports · 924

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 = 'IO540AE1A5'
  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 UPXC20190823001Intake Valve · fragmentedTHE PILOT HEARD/FELT A POP, HAD AN INCREASE IN VIBRATION, AND A PARTIAL LOSS OF POWER. HE MADE AN EMERGENCY DESCENT TO A POWER ASSISTED LANDING IN THE TUNDRA, UPON LANDING SAW SMOKE COMING FROM THE ENGINE COMPARTMENT. SHUT DOWN AIRCRAFT. FOUND NO EVIDENCE OF Aug 13, 2019 · N555EL · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR YV3R2019081522162Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER IS INOPERATIVE.Aug 2, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR 5C8Y2019080129709Idler Gear · damagedCRANKSHAFT GEAR/IDLER GEAR. TEETH RIPPED/SEPARATED. FOUND DURING PRELIMINARY INSPECTION.Jul 29, 2019 · N125WF · Robsin R44RAVENII · Engine (Reciprocating)SDR YV3R2019012200158Servo · leakingHYDRAULIC SERVO ASSEMBLY WAS LEAKING FLUID FROM SIDE COVER.Jul 29, 2019 · Robsin R44 · Hydraulic System, MainSDR YV3R2019080220151Tachometer · defectiveCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ENGINE ROTOR NEEDLE FAILED IN FULL DOWN DEFLECTION IN FLIGHT.Jul 17, 2019 · Robsin R44 · Main Rotor Indicating SystemSDR YV3R2019071600139Actuator · malfunctionedCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 COLUMN SPRINGS DO NOT WORK SIMULTANEOUSLY.Jul 15, 2019 · Robsin R44RAVENII · Main Rotor Drive SystemSDR YV3R2019071800141Alternator · defectiveCUSTOMER REPORTED ALTERNATOR ASSEMBLY P/N: D748-1R IS DEFECTIVE.Jul 15, 2019 · Robsin R44RAVENII · DC Generator-AlternatorSDR YV3R2019071800142Servo · leakingCUSTOMER REPORTED HYDRAULIC SERVO ASSEMBLY P/N: D212-1 LEAKED UPON TESTING AFTER INSTALLATION.Jul 15, 2019 · Robsin R44RAVENII · Main Rotor ControlSDR YV3R2019012200143Servo · leakingCUSTOMER REPORTED HYDRAULIC SERVO ASSEMBLY P/N: D212-1 LEAKED UPON TESTING AFTER INSTALLATION.Jul 15, 2019 · Robsin R44RAVENII · Main Rotor ControlSDR YV3R2019071800144Servo · leakingCUSTOMER REPORTED HYDRAULIC SERVO ASSEMBLY P/N: D212-1 LEAKED UPON TESTING AFTER INSTALLATION.Jul 15, 2019 · Robsin R44RAVENII · Main Rotor ControlSDR YV3R2019062720135Indicator · inoperativeCUSTOMER REPORTED AIRSPEED INDICATOR P/N: C599-1 INDICATING NEEDLE SHAKES VIOLENTLY IN FLIGHT ACCELERATION.Jun 24, 2019 · Robsin R44RAVENII · Airspeed/Mach IndicatorSDR YV3R2019062720137Tachometer · unserviceableCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ENGINE NEEDLE READS LOW.Jun 24, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR CA190626014Bearing · failed(CAN) DURING LAST SHUT DOWN OF THE DAY THE PILOT NOTED THAT ON WHINED DOWN THERE WAS A SQUEAL COMING FROM THE BACK OF THE AIRCRAFT. IT WAS DETERMINED THAT THE TAIL ROTOR PITCH CONTROLLER BEARINGS WERE MAKING THE NOISE. AFTER A BRIEF INQUIRY WITH ROBINSON TECHNJun 24, 2019 · Robsin R44RAVENII · Tail Rotor Control SystemSDR CA190622005Valve Guide · malfunctioned(CAN) DURING WARM UP OF ENGINE, PILOT NOTED AN ABNORMAL SOUNDING ENGINE AND HIGH MANIFOLD PRESSURE. THERE WERE A FEW SMALL BACK FIRES NOTED. AFTER INVESTIGATION IT WAS DETERMINED THAT THE EXHAUST VALVE ON THE #2 CYLINDER WAS STUCK. THE CYLINDER WAS RECENTLY REJun 21, 2019 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR YV3R2019062600131Tachometer · stuckCUSTOMER REPORTED DUAL TACHOMETER HAS STICKING NEEDLES.Jun 19, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019062620132Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 MAIN ROTOR NEEDLE IN INOPERATIVE.Jun 19, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR CA190617019Muffler · cracked(CAN) FOUND CABIN HEAT EXCHANGE TUBE IN MUFFLER CRACKED WHILE PERFORMING 100-HOUR INSPECTION AND AD CF90-03R2 - EXHAUST TYPE MUFF HEATER INSPECTION. MUFFLER REPLACED WITH A NEW UNIT. (TC# 20190617019)Jun 14, 2019 · Robsin R44RAVENII · Heating SystemSDR CA190611012Hose · failed(CAN) DURING SCHEDULED MAINTENANCE ON R44 II IT WAS NOTED THAT THE MANUFACTURER SERVICE BULLETIN R44 SB-97 PART A (REQUIRED WITHIN ONE FLIGHT HOUR) HAD NOT YET BEEN ACCOMPLISHED. VISUAL INSPECTION OF THE INSTALLED HOSE A785-31 FOUND EVIDENCE OF SEPARATION BETWJun 11, 2019 · Robsin R44RAVENII · Engine Air Intake SystemSDR YV3R201906200120Probe · erraticCUSTOMER REPORTED CYLINDER HEAD TEMPERATURE (CHT) INDICATION IS ERRATIC ABOVE IDLE SPEED.Jun 10, 2019 · N898GB · Robsin R44RAVENII · Cylinder Head Temperature (CHT) Indicating SystemSDR YV3R2019062120128Actuator · intermittentCUSTOMER REPORTED ACTUATOR GEAR MOTOR IS INTERMITTENT.Jun 7, 2019 · N206TJ · Robsin R44RAVENII · Main Rotor Drive SystemSDR YV3R2019062120127Tachometer · erraticCUSTOMER REPORTED DUAL TACHOMETER MAIN ROTOR RPM IS ERRATIC.Jun 6, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019060620116Starter · intermittentCUSTOMER REPORTED STARTER ASSEMBLY P/N: 149-24HT/H IS INTERMITTENT.Jun 5, 2019 · Robsin R44RAVENII · Engine StarterSDR YV3R2019060620117Starter · intermittentCUSTOMER REPORTED STARTER ASSEMBLY P/N: 149-24HT/H IS INTERMITTENT.Jun 5, 2019 · Robsin R44RAVENII · Engine StarterSDR YV3R201906200119Inertia Reel · stickingCUSTOMER REPORTED INERTIA REAL STICKING.Jun 5, 2019 · Robsin R44RAVENII · Emergency EquipmentSDR YV3R201906200123Connector · unlockedCUSTOMER REPORTED CONNECTOR ASSEMBLY P/N: C628-6 UNLOCKS AT RANDOM TIMES.Jun 5, 2019 · N929WA · Robsin R44RAVENII · Standard Practices/StructuresSDR YV3R2019060620112V-Belt · failedCUSTOMER REPORTED PILOT MADE A PRECAUTIONARY LANDING AFTER AMBER CLUTCH LIGHT ILLUMINATED. AFTER INSPECTION, IT WAS NOTED ONE OF THE BELTS P/N: A190-3 FAILED.Jun 4, 2019 · Robsin R44RAVENII · Main Rotor Drive SystemSDR YV3R2019012200113Alternator · defectiveCUSTOMER REPORTED ALTERNATOR ASSEMBLY P/N: D748-6 HAS AN INTERNAL SHORT/OPEN CIRCUIT.Jun 4, 2019 · Robsin R44 · DC Generator-AlternatorSDR YV3R2019012200101Probe · inoperativeCUSTOMER REPORTED CYLINDER AHEAD TEMPERATURE PROBE P/N: 3080-38 IS INOPERATIVE.May 30, 2019 · N144BB · Robsin R44RAVENII · Cylinder Head Temperature (CHT) Indicating SystemSDR YV3R2019012200102Probe · inoperativeCUSTOMER REPORTED CYLINDER HEAD TEMPERATURE PROBE P/N: 3080-38 DOS NOT READ (INDICATE).May 30, 2019 · Robsin R44RAVENII · Cylinder Head Temperature (CHT) Indicating SystemSDR YV3R2019012200104Probe · inoperativeCUSTOMER REPORTED CYLINDER HEAD TEMPERATURE PROBE P/N: 3080-38 IS INOPERATIVE.May 30, 2019 · N144BB · Robsin R44RAVENII · Cylinder Head Temperature (CHT) Indicating SystemSDR YV3R2019060520109Gauge · reads lowCUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE GAGE (MAP) P/N: A600-7 READS LOW.May 30, 2019 · N4053T · Robsin R44 · Manifold Pressure (MP) IndicatingSDR YV3R2019053000098Starter · inoperativeCUSTOMER REPORTED STARTER P/N: 149-24HT/H, PINION FAILS TO ENGAGE AND INTERNAL GEARS GRINDING.May 29, 2019 · N944PB · Robsin R44RAVENII · Engine StarterSDR YV3R2019012200099Indicator · inoperativeCUSTOMER REPORTED TURN COORDINATOR P/N: B329-1 INOPERATIVE.May 29, 2019 · N123MV · Robsin R44RAVENII · Turn and Bank/Rate of Turn IndicatorSDR YV3R2019053100100Starter · inoperativeCUSTOMER REPORTED STARTER ASSEMBLY P/N: 149-24HT/H IS INOPERATIVE.May 29, 2019 · Robsin R44RAVENII · Engine StarterSDR CA190524021Flow Divider · malfunctioned(CAN) DURING ROUTINE GROUND RUN FUEL WAS OBSERVED SPRAYING FROM THE VENT HOLE ON TOP OF FLOW DIVIDER INTO THE ENGINE COMPARTMENT. (TC# 20190524021)May 24, 2019 · Robsin R44RAVENII · Fuel Controlling SystemSDR YV3R2019052400095Gauge · defectiveCUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE (MAP) GAUGE P/N: A600-7 IS DEFECTIVE.May 23, 2019 · N7QH · Robsin R44 · Manifold Pressure (MP) IndicatingSDR YV3R2019052400094Tachometer · malfunctionedCUSTOMER REPORTED ROTOR NEEDLE PEGS FULL SCALE WHEN POWER IS APPLIED.May 22, 2019 · N691BA · Robsin R44RAVENII · Main Rotor Indicating SystemSDR YV3R2019052900097Alternator · inoperativeCUSTOMER REPORTED ALTERNATOR ASSEMBLY P/N: D748-6 HAS NO CURRENT OUTPUT.May 17, 2019 · N619BZ · Robsin R44RAVENII · DC Generator-AlternatorSDR YV3R2019012200084Servo · leakingCUSTOMER REPORTED HYDRAULIC SERVO ASSEMBLY IS LEAKING.May 15, 2019 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR YV3R2019012200087Servo · leakingCUSTOMER REPORTED HYDRAULIC SERVO ASSEMBLY P/N: D212-1 WAS LEAKING.May 15, 2019 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR YV3R2019012200088Servo · leakingCUSTOMER REPORTED HYDRAULIC SERVO ASSEMBLY P/N: D212-1 IS LEAKING.May 15, 2019 · Robsin R44RAVENII · Rotorcraft Servo SystemSDR YV3R2019012200092Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 MAIN ROTOR NEEDLE IS INOPERATIVE.May 15, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR CA190617021Alternator · inoperative(CAN) ALTERNATOR FOUND TO BE INOPERATIVE DURING PRE-FLIGHT GROUND RUN. ALTERNATOR REPLACED WITH OVERHAULED UNIT. (TC# 20190617021)May 15, 2019 · Robsin R44RAVENII · DC Generator-AlternatorSDR YV3R2019012200082Tachometer · inoperativeCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 IS INOPERATIVE.May 7, 2019 · Robsin R44RAVENII · Main Rotor Indicating SystemSDR CA190506015Boot · leaking(CAN) PILOT CALLED AND REPORTED EXCESSIVE OIL ON THE MAST COVER ON THE AIRCRAFT. THE PILOT WAS INSTRUCTED TO WIPE THE BOOT AT THE BLADE AREA AND MORE DROPS CAME OUT. PILOT WAS INSTRUCTED NOT TO FLY ANYMORE. MAINTENANCE WAS DISPATCHED AND THE BLADE ASSEMBLY WASMay 5, 2019 · Robsin R44RAVENII · Main Rotor BladesSDR YV3R2019012200076Sump · leakingCUSTOMER REPORTED MAIN ROTOR GEARBOX SUMP P/N: C264-2 HAD A PIN HOLE LEAK IN CASTING.May 1, 2019 · Robsin R44RAVENII · Main Rotor GearboxSDR YV3R2019012200074Governor · malfunctionedCUSTOMER REPORTED GOVERNOR CONTROLLER P/N: D278-2 MALFUNCTIONED.Apr 30, 2019 · Robsin R44RAVENII · Engine RPM Indicating SystemSDR CA190622006Pushrod · damaged(CAN) DURING 300 HOUR SB388C VALVE GUIDE INSPECTION IT WAS NOTED BY THE ENGINEER THAT ONE OF THE PUSH RODS HAD BEEN BENT DURING OPERATION. AFTER FURTHER INVESTIGATION IT WAS DETERMINED TO HAVE HAD THE INCORRECT LENGTH PUSH ROD INSTALLED AT ENGINE OVERHAUL. PROApr 30, 2019 · Robsin R44RAVENII · Reciprocating Engine Cylinder SectionSDR YV3R2019012200070Actuator · malfunctionedCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 MALFUNCTIONED.Apr 24, 2019 · Robsin R44RAVENII · Main Rotor Drive SystemSDR CA190424026Alternator · inoperative(CAN) ALTERNATOR LIGHT ILLUMINATED IN FLIGHT. THE ALTERNATOR WAS REPLACED FOR A THIRD TIME DUE TO THIS WARNING LIGHT ILLUMINATION. A SERVICEABLE (USED) ALTERNATOR WAS INSTALLED THIS TIME. THE ALTERNATOR HAS NOW FUNCTIONED NORMALLY FOR THE 4.3 HOURS FLOWN SINCEApr 23, 2019 · Robsin R44RAVENII · DC Generator-Alternator
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