# Service difficulty reports: N135MH

A list on [N135MH](https://openairdocs.org/aircraft/N135MH.md).

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

- [SDR 2026F00016](https://openairdocs.org/sdr/2026F00016.md): Frame Splice · cracked · Feb 24, 2026 · N135MH · Urocop EC135T1 · Fuselage Main, Frame
  > CRACK WAS DISCOVERED ON FRAME 4 SPLICE, FWD RH ARIS MOUNT AREA DURING 12 MONTH INSPECTION.
- [SDR 2019F00052](https://openairdocs.org/sdr/2019F00052.md): Unknown · odor · Aug 14, 2018 · N135MH · Urocop EC135T1 · Air Distribution System
  > CREW 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 CHE
- [SDR 2016F00064](https://openairdocs.org/sdr/2016F00064.md): Stringer · cracked · Feb 19, 2016 · N135MH · Urocop EC135T1 · Fuselage Main, Longeron/Stringer
  > CRACKS ON LT AND RT SIDE OF AIR FRAME UNDER THE RT AND LT ELECTRICAL MASTER BOX.
- [SDR BAQA094424](https://openairdocs.org/sdr/BAQA094424.md): Starter Gen · failed · May 24, 2004 · N135MH · Urocop EC135T1 · Starter-Generator
  > GENERATOR WILL NOT START ENGINE. HARDCARD ENCLOSED. REPLACED WITH SERVICABLE UNIT. 06/02/2004
- [SDR BAQA093892](https://openairdocs.org/sdr/BAQA093892.md): Ejector · inoperative · Mar 9, 2004 · N135MH · Urocop EC135T1 · Heating System
  > EJECTOR INOPERATIVE, WON'T BLOW HEAT. REPLACED WITH SERVICABLE UNIT. 03/22/2004
- [SDR BAQA093941](https://openairdocs.org/sdr/BAQA093941.md): Clock · failed · Mar 8, 2004 · N135MH · Urocop EC135T1 · Independent Instruments
  > CLOCK WILL NOT HOLD CORRECT TIME, RUNNING FAST. REPLACED WITH UNIT PURCHASED OUTRIGHT THROUGH AEC (PO 2-023000-06)
- [SDR BAQA091987](https://openairdocs.org/sdr/BAQA091987.md): Actuator · leaking · Mar 3, 2004 · N135MH · Urocop EC135T1 · Rotorcraft Servo System
  > ACTUATOR SHAFT SEAL LEAKING. HARDCARD ENCLOSED. REPLACED WITH SERVICABLE UNIT. 03/17/2004
- [SDR BAQA093987](https://openairdocs.org/sdr/BAQA093987.md): Manifold · unknown · Feb 25, 2004 · N135MH · Urocop EC135T1 · Engine Fuel Distribution
  > 200HR TIME CHANGE DUE, C/W AD 01-08-14(B). FUEL MANIFOLD, REPLACED WITH SERVICABLE UNIT. 03/30/2004
- [SDR BAQA091996](https://openairdocs.org/sdr/BAQA091996.md): Mount · failed · Jan 4, 2004 · N135MH · Urocop EC135T1 · Main Rotor Transmission Mount
  > Z-ARIS FAILED. REPLACED WITH SERVICEABLE UNIT. 01/15/2004
- [SDR BAQA091876](https://openairdocs.org/sdr/BAQA091876.md): Static Inverter · failed · Dec 22, 2003 · N135MH · Urocop EC135T1 · AC Generation System
  > INVERTER FAILED. PART REPLACED WITH SERVICABLE UNIT.
- [SDR BAQA091301](https://openairdocs.org/sdr/BAQA091301.md): Gearbox · making metal · Nov 20, 2003 · N135MH · Urocop EC135T1 · Tail Rotor Gearbox
  > TAIL ROTOR GEARBOX IS MAKING METAL. HARD CARD ENCLOSED. REPLACED WITH SERVICEABLE UNIT. PART BEING RETURNED.
- [SDR BAQA091189](https://openairdocs.org/sdr/BAQA091189.md): Display · intermittent · Oct 28, 2003 · N135MH · Urocop EC135T1 · Central Warning
  > DISPLAY UNIT INOPERATIVE. F CODE ON START UP. INTERMITTENT OPERATION. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA090341](https://openairdocs.org/sdr/BAQA090341.md): Valve · inoperative · Oct 28, 2003 · N135MH · Urocop EC135T1 · Heating System
  > HEATER INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA089648](https://openairdocs.org/sdr/BAQA089648.md): Actuator · worn · Oct 10, 2003 · N135MH · Urocop EC135T1 · Rotorcraft Servo System
  > FENESTRON ACTUATOR WORN. REPLACED WITH SERVICEABLE UNIT. 11/03/03.
- [SDR BAQA088153](https://openairdocs.org/sdr/BAQA088153.md): Actuator · failed · Sep 4, 2003 · N135MH · Urocop EC135T1 · Tail Rotor Control System
  > YAW SAS FAILURE. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA088335](https://openairdocs.org/sdr/BAQA088335.md): Clock · inoperative · Aug 8, 2003 · N135MH · Urocop EC135T1 · Independent Instruments
  > CLOCK INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA088669](https://openairdocs.org/sdr/BAQA088669.md): Brushes · worn · Aug 7, 2003 · N135MH · Urocop EC135T1 · Starter-Generator
  > STARTER GEN HAS BRUSHES WORN. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA089070](https://openairdocs.org/sdr/BAQA089070.md): Injector · clogged · Jul 29, 2003 · N135MH · Urocop EC135T1 · Fuel Injector Nozzle
  > FUEL INJECTOR CLOGGED. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA089069](https://openairdocs.org/sdr/BAQA089069.md): Injector · clogged · Jul 29, 2003 · N135MH · Urocop EC135T1 · Fuel Injector Nozzle
  > INJECTOR IS CLOGGED. REPLACED WITH SERVICEABLE UNITS. 9/9/03
- [SDR BAQA088164](https://openairdocs.org/sdr/BAQA088164.md): Indicator · erratic · Jul 21, 2003 · N135MH · Urocop EC135T1 · Rotor Drive Indicating System
  > ROTOR INDICATOR ERRATIC. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA088099](https://openairdocs.org/sdr/BAQA088099.md): Pump · inoperative · Jul 15, 2003 · N135MH · Urocop EC135T1 · Fuel Boost Pump
  > FUEL PUMP INOPERATIVE. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA087936](https://openairdocs.org/sdr/BAQA087936.md): Indicator · failed · Jul 8, 2003 · N135MH · Urocop EC135T1 · Main Rotor Indicating System
  > TRIPLE RPM INDICATOR LASTED LESS THAN 8 HOURS OF FLIGHT TIME. REQUEST WARRANTY. RMA R043477 REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA087578](https://openairdocs.org/sdr/BAQA087578.md): Battery · discharged · Jun 11, 2003 · N135MH · Urocop EC135T1 · Battery/Charger System
  > FAULT CODES. BATTERY DISCHARGE LIGHT. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA086395](https://openairdocs.org/sdr/BAQA086395.md): Indicator · malfunctioned · May 12, 2003 · N135MH · Urocop EC135T1 · Main Rotor Indicating System
  > ROTOR INDICATION DROPS OFF LINE LESS THAN ZERO. INTERMITTENT. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA086299](https://openairdocs.org/sdr/BAQA086299.md): Indicator · stuck · Apr 30, 2003 · N135MH · Urocop EC135T1 · Main Rotor Indicating System
  > TRIPLE TACH ROTOR RPM NEEDLE STICKS.
- [SDR BAQA081641](https://openairdocs.org/sdr/BAQA081641.md): Actuator · worn · Dec 12, 2002 · N135MH · Urocop EC135T1 · Rotorcraft Servo System
  > FENESTRON ACTUATOR ARM WORN. REPLACED WITH SERVICEABLE UNIT.
- [SDR BAQA081532](https://openairdocs.org/sdr/BAQA081532.md): Altimeter · out of tolerance · Nov 26, 2002 · N135MH · Urocop EC135T1 · Altimeter, Barometric/Encoder
  > ALTIMETER OUT OF TOLERANCE +120 FT. REPLACED WITH SERVICEABLE UNIT.

## 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 n_number = 'N135MH' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N135MH/reports

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