# Service difficulty reports: N135N

A list on [N135N](https://openairdocs.org/aircraft/N135N.md).

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

- [SDR QMLA2012091012149](https://openairdocs.org/sdr/QMLA2012091012149.md): Unknown · odor · Sep 10, 2012 · N135N · Urocop EC135P1 · Air Distribution System
  > DURING CRUISE FLIGHT, DETECTED ELECTRICAL BURNING ODOR. ABORTED FLIGHT AND RETURNED TO BASE OF OPERATIONS, ON ARRIVAL, DIDN’T NOTICE ANY BURNING ODOR, AFTER INSPECTING ALL ELECTRICAL AREAS AND THE ENTIRE ACFT NO VISIBLE SIGNS OF BURNING OR CHAFING WAS DETEC
- [SDR QMLA2010070610030](https://openairdocs.org/sdr/QMLA2010070610030.md): Fairing · cracked · Jul 6, 2010 · N135N · Urocop EC135P1 · Rotorcraft Tail Boom
  > 30 MM CRACK AT THE OUTER CIRCUMFERENCE (ADJACENT TO ONE OF THE ATTACH SCREWS) ON FAIRING ASSY PN L642A2028102. THE CRACK EXTENDS TOWARD THE CTR OF THE FAIRING ASSY. THE CRACK WAS DISCOVERED DURING A WALK AROUND OF THE ACFT.
- [SDR R7MR35534](https://openairdocs.org/sdr/R7MR35534.md): Clutch · failed · Aug 1, 2002 · N135N · Urocop EC135P1 · Main Rotor Gearbox
  > CLUTCH IS NOT ENGAGING (NOT HEARD OR FELT). REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR SDRO2002003](https://openairdocs.org/sdr/SDRO2002003.md): Control Head · failed · Mar 15, 2002 · N135N · Urocop EC135P1 · Autopilot Computer
  > PILOT REPORTED THAT 10 MINUTES INTO CRUISE FLIGHT DURING NORMAL CROSS CHECK HE NOTICED HEADING WAS STARTING TO DRIFT. PILOT WAS UNABLE TO RESELECT AUTO PILOT HEADING. AUTO PILOT HAD FAILED. CONTROL HEAD STILL INDICATED THE AUTO PILOT WAS ENGAGED. DID NOT R
- [SDR R7MR34977](https://openairdocs.org/sdr/R7MR34977.md): Display · intermittent · Mar 8, 2002 · N135N · Urocop EC135P1 · Central Display
  > COCKPIT DISPLAY UNIT, INTERMITTENT MISSING DIGIT SEGMENTS AT MAIN FUEL QUANTITY INDICATION AND TORQUE DISPLAY. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR34739](https://openairdocs.org/sdr/R7MR34739.md): Blade · damaged · Mar 3, 2002 · N135N · Urocop EC135P1 · Main Rotor Blades
  > MAIN ROTOR BLADE, DAMAGED TO PITCH HORN BUSHINGS (PN L621M1010232). DAMAGED TO PITCH HORN BUSHINGS PNL621M1010232. AEC TECHNICAL SERVICES ADVISED US THAT THE WEAR IS CAUSED BY IMPROPER TORQUE OF THE UPPER HEX BOLT HARDWARD. REPLACED WITH LOANER UNIT, CORREC
- [SDR 2002F00290](https://openairdocs.org/sdr/2002F00290.md): Ejector · cracked · Jan 25, 2002 · N135N · Urocop EC135P1 · Engine Collector/Tailpipe/Nozzle
  > EJECTOR ASSEMBLY CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT CORRECTED PROBLEM. (M)
- [SDR R7MA33675](https://openairdocs.org/sdr/R7MA33675.md): Display · inoperative · Aug 29, 2001 · N135N · Urocop EC135P1 · Central Display
  > LOWER DISPLAY, TOP LINE LEFT SIDE IS UNREADABLE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2001F00505](https://openairdocs.org/sdr/2001F00505.md): Actuator · inoperative · Aug 28, 2001 · N135N · Urocop EC135P1 · Autopilot System
  > SMART ELECT MECHAN ACTUATOR IS INOPERATIVE. WITH AUTO-PILOT ENGAGED FCDM DISPLAYS YAW DEGRADED. AUTO-PILOT WILL NOT SELF TEST. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (M)
- [SDR R7MA33674](https://openairdocs.org/sdr/R7MA33674.md): Display · missing · Aug 18, 2001 · N135N · Urocop EC135P1 · Fuel Indicating System
  > DISPLAY SEGMENTS MISSING AT MAIN FUEL QUANTITY. MORE SEGEMENTS MISSING AT NUMBER 1 TORQUE INDICATION. HORIZONTAL LINE OF LIGHTS MISSING ON UPPER DISPLAY AT THE SECOND CAUTION ROW. REPLACED WITH NEW UNIT CORRECTED PROBLEM.
- [SDR R7MR34345](https://openairdocs.org/sdr/R7MR34345.md): Bellows · worn · Jul 16, 2001 · N135N · Urocop EC135P1 · Main Rotor Mast/Swashplate
  > BELLOWS ASSEMBLY, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR34346](https://openairdocs.org/sdr/R7MR34346.md): Seal · worn · Jul 16, 2001 · N135N · Urocop EC135P1 · Turbine Section
  > 145MM SEAL ASSEMBLY, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR34341](https://openairdocs.org/sdr/R7MR34341.md): Light · inoperative · Jul 13, 2001 · N135N · Urocop EC135P1 · Exterior Lighting
  > ANTI-COLLISION LIGHT, UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MA33743](https://openairdocs.org/sdr/R7MA33743.md): Display · inoperative · Jul 11, 2001 · N135N · Urocop EC135P1 · Central Display
  > UNIT INOPERATIVE. JAGGED VERTICAL LINE DOWN THROUGH CENTER OF DISPLAY. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR33480](https://openairdocs.org/sdr/R7MR33480.md): Head · inoperative · May 25, 2001 · N135N · Urocop EC135P1 · Autopilot System
  > DISPLAY INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR33481](https://openairdocs.org/sdr/R7MR33481.md): Fan · inoperative · Apr 18, 2001 · N135N · Urocop EC135P1 · Air Distribution Fan
  > UNIT INOPERATIVE. RESISTOR UNIT HAS OPEN CIRCUIT FROM MIN AND MAX PINS TO THE FAN MOTOR PIN. FAN WILL NOT OPERATE AT LOW SETTINGS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR33078](https://openairdocs.org/sdr/R7MR33078.md): Head · inoperative · Apr 17, 2001 · N135N · Urocop EC135P1 · Autopilot System
  > UNIT INOPERATIVE. NO DISPLAY. REPLACED WITH LOANER UNIT SN JH1032 CORRECTED PROBLEM.
- [SDR R7MR32735](https://openairdocs.org/sdr/R7MR32735.md): Engine · fod · Feb 20, 2001 · N135N · Urocop EC135P1 · Engine (Turbine/Turboprop)
  > FOREIGN OBJECT DAMAGE. DAMAGE OCCURRED PRIOR TO TAKING DELIVERY OF AIRCRAFT. SUSPECT RIVET FRAGMENTS ENTERED ENGINE DURING FINAL PHASE OF AIRFRAME ASSEMBLY.
- [SDR R7MR32711](https://openairdocs.org/sdr/R7MR32711.md): Valve · inoperative · Jan 19, 2001 · N135N · Urocop EC135P1 · Heating System
  > UNIT INOPERATIVE. BLEED AIR HEAT ON AT ALL TIMES. BLEED AIR ADVISORY ON WITH HEAT TURNED TO OFF POSITION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR32904](https://openairdocs.org/sdr/R7MR32904.md): Electrical Box · inoperative · Dec 22, 2000 · N135N · Urocop EC135P1 · DC Power Distribution System
  > UNIT INOPERATIVE. WILL NOT SELF TEST. NUMBER 1 BUS NOT ON LINE. REPLACED WITH NEW UNIT K-BALLED FROM EC135-0133 CORRECTED PROBLEM.
- [SDR R7MR32710](https://openairdocs.org/sdr/R7MR32710.md): Valve · inoperative · Dec 22, 2000 · N135N · Urocop EC135P1 · Heating System
  > UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR32708](https://openairdocs.org/sdr/R7MR32708.md): Altimeter · inoperative · Dec 22, 2000 · N135N · Urocop EC135P1 · Altimeter, Barometric/Encoder
  > UNIT INOPERATIVE. SUDDEN PRESSURE DISCHARGE WITH ALT AT 15000FT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7MR32626](https://openairdocs.org/sdr/R7MR32626.md): Ecu · inoperative · Dec 22, 2000 · N135N · Urocop EC135P1 · Fuel Control/Turbine Engines
  > UNIT INOPERATIVE. HAS ERRORS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 20001214SH042](https://openairdocs.org/sdr/20001214SH042.md): Cartridge · inoperative · Nov 22, 2000 · N135N · Urocop EC135P1 · Fuel Boost Pump
  > FUEL PUMP CARTRIDGE UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
- [SDR 20001214SH041](https://openairdocs.org/sdr/20001214SH041.md): Cartridge · inoperative · Nov 22, 2000 · N135N · Urocop EC135P1 · Fuel Boost Pump
  > FUEL PUMP CARTRIDGE UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)
- [SDR 20001107SH005](https://openairdocs.org/sdr/20001107SH005.md): Control Box · inoperative · Oct 21, 2000 · N135N · Urocop EC135P1 · AC Power Distribution System
  > ELECTRICAL MASTER BOX, RT FULL OPT, UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)

## 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 = 'N135N' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N135N/reports

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