N135MH

Service difficulty reports · 27

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

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 n_number = 'N135MH' AND registry_match = 'registration'
  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 2026F00016Frame Splice · crackedCRACK WAS DISCOVERED ON FRAME 4 SPLICE, FWD RH ARIS MOUNT AREA DURING 12 MONTH INSPECTION.Feb 24, 2026 · N135MH · Urocop EC135T1 · Fuselage Main, FrameSDR 2019F00052Unknown · odorCREW IN CABIN AREA REPORTED ELECTRICAL BURNING ODOR NEAR THE MED AVIONICS PANEL, COINCIDING WITH ATTEMPTING TO TRANSMIT ON THE AUX SELECTOR. REMOVED RADIOS FROM PANEL AND INSPECTED WIRE BUNDLES FOR SIGNS OF BURNING & ARCING WITH NONE FOUND. PERFORMED RADIO CHEAug 14, 2018 · N135MH · Urocop EC135T1 · Air Distribution SystemSDR 2016F00064Stringer · crackedCRACKS ON LT AND RT SIDE OF AIR FRAME UNDER THE RT AND LT ELECTRICAL MASTER BOX.Feb 19, 2016 · N135MH · Urocop EC135T1 · Fuselage Main, Longeron/StringerSDR BAQA094424Starter Gen · failedGENERATOR WILL NOT START ENGINE. HARDCARD ENCLOSED. REPLACED WITH SERVICABLE UNIT. 06/02/2004May 24, 2004 · N135MH · Urocop EC135T1 · Starter-GeneratorSDR BAQA093892Ejector · inoperativeEJECTOR INOPERATIVE, WON'T BLOW HEAT. REPLACED WITH SERVICABLE UNIT. 03/22/2004Mar 9, 2004 · N135MH · Urocop EC135T1 · Heating SystemSDR BAQA093941Clock · failedCLOCK WILL NOT HOLD CORRECT TIME, RUNNING FAST. REPLACED WITH UNIT PURCHASED OUTRIGHT THROUGH AEC (PO 2-023000-06)Mar 8, 2004 · N135MH · Urocop EC135T1 · Independent InstrumentsSDR BAQA091987Actuator · leakingACTUATOR SHAFT SEAL LEAKING. HARDCARD ENCLOSED. REPLACED WITH SERVICABLE UNIT. 03/17/2004Mar 3, 2004 · N135MH · Urocop EC135T1 · Rotorcraft Servo SystemSDR BAQA093987Manifold · unknown200HR TIME CHANGE DUE, C/W AD 01-08-14(B). FUEL MANIFOLD, REPLACED WITH SERVICABLE UNIT. 03/30/2004Feb 25, 2004 · N135MH · Urocop EC135T1 · Engine Fuel DistributionSDR BAQA091996Mount · failedZ-ARIS FAILED. REPLACED WITH SERVICEABLE UNIT. 01/15/2004Jan 4, 2004 · N135MH · Urocop EC135T1 · Main Rotor Transmission MountSDR BAQA091876Static Inverter · failedINVERTER FAILED. PART REPLACED WITH SERVICABLE UNIT.Dec 22, 2003 · N135MH · Urocop EC135T1 · AC Generation SystemSDR BAQA091301Gearbox · making metalTAIL ROTOR GEARBOX IS MAKING METAL. HARD CARD ENCLOSED. REPLACED WITH SERVICEABLE UNIT. PART BEING RETURNED.Nov 20, 2003 · N135MH · Urocop EC135T1 · Tail Rotor GearboxSDR BAQA091189Display · intermittentDISPLAY UNIT INOPERATIVE. F CODE ON START UP. INTERMITTENT OPERATION. REPLACED WITH SERVICEABLE UNIT.Oct 28, 2003 · N135MH · Urocop EC135T1 · Central WarningSDR BAQA090341Valve · inoperativeHEATER INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.Oct 28, 2003 · N135MH · Urocop EC135T1 · Heating SystemSDR BAQA089648Actuator · wornFENESTRON ACTUATOR WORN. REPLACED WITH SERVICEABLE UNIT. 11/03/03.Oct 10, 2003 · N135MH · Urocop EC135T1 · Rotorcraft Servo SystemSDR BAQA088153Actuator · failedYAW SAS FAILURE. REPLACED WITH SERVICEABLE UNIT.Sep 4, 2003 · N135MH · Urocop EC135T1 · Tail Rotor Control SystemSDR BAQA088335Clock · inoperativeCLOCK INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.Aug 8, 2003 · N135MH · Urocop EC135T1 · Independent InstrumentsSDR BAQA088669Brushes · wornSTARTER GEN HAS BRUSHES WORN. REPLACED WITH SERVICEABLE UNIT.Aug 7, 2003 · N135MH · Urocop EC135T1 · Starter-GeneratorSDR BAQA089070Injector · cloggedFUEL INJECTOR CLOGGED. REPLACED WITH SERVICEABLE UNIT.Jul 29, 2003 · N135MH · Urocop EC135T1 · Fuel Injector NozzleSDR BAQA089069Injector · cloggedINJECTOR IS CLOGGED. REPLACED WITH SERVICEABLE UNITS. 9/9/03Jul 29, 2003 · N135MH · Urocop EC135T1 · Fuel Injector NozzleSDR BAQA088164Indicator · erraticROTOR INDICATOR ERRATIC. REPLACED WITH SERVICEABLE UNIT.Jul 21, 2003 · N135MH · Urocop EC135T1 · Rotor Drive Indicating SystemSDR BAQA088099Pump · inoperativeFUEL PUMP INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.Jul 15, 2003 · N135MH · Urocop EC135T1 · Fuel Boost PumpSDR BAQA087936Indicator · failedTRIPLE RPM INDICATOR LASTED LESS THAN 8 HOURS OF FLIGHT TIME. REQUEST WARRANTY. RMA R043477 REPLACED WITH SERVICEABLE UNIT.Jul 8, 2003 · N135MH · Urocop EC135T1 · Main Rotor Indicating SystemSDR BAQA087578Battery · dischargedFAULT CODES. BATTERY DISCHARGE LIGHT. REPLACED WITH SERVICEABLE UNIT.Jun 11, 2003 · N135MH · Urocop EC135T1 · Battery/Charger SystemSDR BAQA086395Indicator · malfunctionedROTOR INDICATION DROPS OFF LINE LESS THAN ZERO. INTERMITTENT. REPLACED WITH SERVICEABLE UNIT.May 12, 2003 · N135MH · Urocop EC135T1 · Main Rotor Indicating SystemSDR BAQA086299Indicator · stuckTRIPLE TACH ROTOR RPM NEEDLE STICKS.Apr 30, 2003 · N135MH · Urocop EC135T1 · Main Rotor Indicating SystemSDR BAQA081641Actuator · wornFENESTRON ACTUATOR ARM WORN. REPLACED WITH SERVICEABLE UNIT.Dec 12, 2002 · N135MH · Urocop EC135T1 · Rotorcraft Servo SystemSDR BAQA081532Altimeter · out of toleranceALTIMETER OUT OF TOLERANCE +120 FT. REPLACED WITH SERVICEABLE UNIT.Nov 26, 2002 · N135MH · Urocop EC135T1 · Altimeter, Barometric/Encoder
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