# Service difficulty reports: N135LC A list on [N135LC](https://openairdocs.org/aircraft/N135LC.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 2A6R2026031675004](https://openairdocs.org/sdr/2A6R2026031675004.md): Ehsi · wrong part · Mar 16, 2026 · N135LC · Urocop EC135T2 · Attitude and Direction Data System > DURING REINSTALLATION OF THE EHSI (ELECTRONIC HORIZONTAL SITUATION INDICATOR), THE INSTALLING TECHNICIAN NOTED THAT THE LOCKING TEETH RETAINER ON THE UNIT'S J3 CONNECTOR WOULD NOT LOCK AS EXPECTED WHEN CONNECTING THE AIRFRAME P3 D-SUB CONNECTOR. IT WAS ALSO NO - [SDR 2A6R2026021975003](https://openairdocs.org/sdr/2A6R2026021975003.md): Floor Panel · dented · Feb 19, 2026 · N135LC · Urocop EC135T2 · Fuselage Floor Panel > DAMAGE WAS DISCOVERED TO THE CABIN FLOOR UPPER SKIN PANEL IN THE FORM OF MULTIPLE DENTS. THE DENTS WERE FILLED WITH AN EA9309.3NA RESIN/MICRO BALLOON MIXTURE AND.025” 2024-T3 REPAIR DOUBLERS WERE FABRICATED AND INSTALLED OVER TOP OF THE REPAIR AREA. A DETAILE - [SDR 2A6R2026021975002](https://openairdocs.org/sdr/2A6R2026021975002.md): Floor Panel · dented · Feb 19, 2026 · N135LC · Urocop EC135T2 · Fuselage Floor Panel > DENT DAMAGE MEASURING 13.5” LONG AND 2.5” WIDE WITH A MAXIMUM DEPTH OF 0.065” WAS DISCOVERED ON THE L/H SIDE OF THE COCKPIT FLOOR SKIN NEAR F.S 2,675MM APPROXIMATELY 0.5” FROM THE EDGE OF THE CENTER CONSOLE. THE DAMAGED AREA WAS POTTED WITH EA9309.3NA ADHESIVE - [SDR 2A6R2026020275001](https://openairdocs.org/sdr/2A6R2026020275001.md): Attach Angle · corroded · Feb 2, 2026 · N135LC · Urocop EC135T2 · Fuselage Main, Attach Fittings > CORROSION DAMAGE OF 0.016”- 0.020” IN DEPTH WAS DISCOVERED ON THE LOWER R/H BROOM CLOSET ATTACHMENT ANGLE (L533M1052317). REPLACEMENT ANGLE BRACKETS WERE NOT AVAILABLE WITHIN THE SCHEDULED RETURN TO SERVICE DATE. THEREFORE, A REPLACEMENT ANGLE WAS FABRICATED U - [SDR 2A6R2022090264802](https://openairdocs.org/sdr/2A6R2022090264802.md): Frame · cracked · Sep 2, 2022 · N135LC · Urocop EC135T2 · Fuselage Main, Frame > DURING 1000 HOUR INSPECTION, CRACK DAMAGE WAS DISCOVERED ON THE RH FRAME 5 AT THE SIDE WALL ATTACHMENT AT THE UPPER MOUNT LOCATION FOR THE AFT MEDICAL WALL AT APPROXIMATELY FUSELAGE STATION 4,709MM WATER LINE 2,375MM. THE CRACK IS APPROXIMATELY 0.75” IN LENGT - [SDR 2A6R2022090264801](https://openairdocs.org/sdr/2A6R2022090264801.md): Tail Boom · chafed · Sep 2, 2022 · N135LC · Urocop EC135T2 · Rotorcraft Tail Boom > DURING 1000 HOUR INSPECTION, FOUND TAILBOOM CHAFE MARK ON BOTTOM CENTER SURFACE ROUGHLY 3FT AFT OF FWD RING FRAME THAT APPEARS TO BE THRU MULTIPLE PLIES. PERFORMED REPAIR ON TAILBOOM CHAFE DAMAGE ON BOTTOM CENTER SURFACE AFT OF FWD RING FRAME USING ECS0031-12 - [SDR QMLA2020021172009](https://openairdocs.org/sdr/QMLA2020021172009.md): Engine · failed · Feb 7, 2020 · N135LC · Urocop EC135T2 · Engine (Turbine/Turboprop) > ON 7 FEB 20 AT 1957 HOURS WHILE ATTEMPTING TO LAND ON THE DOLLY, PILOT HEARD LOUD BANG FOLLOWED BY VIBRATIONS IN THE AIRFRAME, NOT IN THE FLIGHT CONTROL, AND SEVERE GRINDING NOISES. I LOOKED IN AT THE CAD TO SEE WHAT WAS GOING ON AND NOTICED FLAMES OUT THE LEF - [SDR QMLA2012093012163](https://openairdocs.org/sdr/QMLA2012093012163.md): Frame · corroded · Sep 30, 2012 · N135LC · Urocop EC135T2 · Rotorcraft Tail Boom > THE TAIL BOOM JUNCTION RING FRAME X9227 WAS FOUND TO BE CORRODED. THE TAIL BOOM ASSY WAS REMOVED AND SHIPPED TO ACFT MFG. REPLACED RING FRAME WITH A NEW RING FRAME X9227. - [SDR QMLA2012093012162](https://openairdocs.org/sdr/QMLA2012093012162.md): Skin · corroded · Sep 30, 2012 · N135LC · Urocop EC135T2 · Fuselage Main, Plate/Skin > FUSELAGE SKIN HAS VARIOUS AREAS OF CORROSION AT THE GROUND PLUG. COMPLETED REPAIR BY FRABICATING A FILLER USING 0.020" THICK 2024-T3 ALUMINUM ALLOY. FABRICATED A DOUBLER USING 0.025" THICK 2024-T3 ALUMINUM ALLOY. POSITIONED DOUBLER AND MATCHED DRILLED EXISTING - [SDR QMLA2012093012161](https://openairdocs.org/sdr/QMLA2012093012161.md): Floor Panel · crushed · Sep 30, 2012 · N135LC · Urocop EC135T2 · Fuselage Floor Panel > THE CABIN FLOOR HAS MULTIPLE AREAS OF DAMAGE/CRUSHED HONEYCOMB. REMOVED UPPER SKIN FROM DAMAGED AREAS. POTTED THE EXPOSED CORE AREA TO ACHIEVE A FLAT AND SMOOTH SURFACE, TO EVEN WITH THE EXISTING SKIN. FABRICATED A DOUBLER USING 0.032" THICK 2024-T3 ALUMINUM - [SDR BAQA094141](https://openairdocs.org/sdr/BAQA094141.md): Clock · intermittent · Apr 15, 2004 · N135LC · Urocop EC135T1 · Independent Instruments > CLOCK WORKS INTERMITTENTLY AND THEN STOPS, WORKS THEN STOPS. REPLACED WITH SERVICABLE UNIT, 04/19/2004. - [SDR BAQA093734](https://openairdocs.org/sdr/BAQA093734.md): Indicator · ratcheting · Mar 9, 2004 · N135LC · Urocop EC135T1 · Turn and Bank/Rate of Turn Indicator > INDICATOR IS RATCHETY AND STICKY. REPLACED WITH SERVICABLE UNIT. 03/11/2004 - [SDR BAQA091997](https://openairdocs.org/sdr/BAQA091997.md): Mount · collapsed · Dec 27, 2003 · N135LC · Urocop EC135T1 · Main Rotor Transmission Mount > MAIN ROTOR GEARBOX MOUNT COLLAPSED. REPLACED WITH SERVICEABLE UNIT. 01/15/2004 - [SDR BAQA091483](https://openairdocs.org/sdr/BAQA091483.md): Chip Detector · loose · Dec 10, 2003 · N135LC · Urocop EC135T1 · Tail Rotor Drive Indicating System > CHIP DETECTOR STAKE IN PLUG LET GO ALLOWING CONNECTOR END TO ROTATE. ERIC SAID TO SCRAP ON SITE. FAX SCRAP CERT. AND MMIR TO HIM. THIS WAS DONE 12/10/03. - [SDR BAQA091587](https://openairdocs.org/sdr/BAQA091587.md): Control Unit · intermittent · Dec 9, 2003 · N135LC · Urocop EC135T1 · Flight Compartment Lighting > INSTRUMENT LIGHTS INTERMITTENT, FLASH ON AND OFF ONCE EVERY 1 OR 2 FLIGHTS. REPLACE SERVICEABLE UNIT. 12/18/2003 - [SDR BAQA091485](https://openairdocs.org/sdr/BAQA091485.md): Indicator · inoperative · Nov 23, 2003 · N135LC · Urocop EC135T1 · Rotor Drive Indicating System > N2 NEEDLE INOPERATIVE. REPLACED WITH CANNED UNIT FROM AN AIRCRAFT. ## 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 = 'N135LC' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N135LC/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.