# Service difficulty reports: N151AC A list on [N151AC](https://openairdocs.org/aircraft/N151AC.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR QMLA2026100820077](https://openairdocs.org/sdr/QMLA2026100820077.md): Unknown · odor · Oct 8, 2026 · N151AC · Urocop EC130B4 · Air Distribution System > POTENT FUEL ODOR, AFTER TAKEOFF IN COCKPIT WITH PATIENT ON BOARD. - [SDR QMLA2025052420059](https://openairdocs.org/sdr/QMLA2025052420059.md): Vent · smoke · May 24, 2025 · N151AC · Urocop EC130B4 · Air Distribution System > PILOT STATED THAT HE SMELLED AND OBSERVED SMOKE FROM THE FORWARD EVAPORATOR AIR VENTS. THE PILOT STATES THAT HE HAD SELECTED THE LOW BLOWER SPEED SETTING. - [SDR QMLA2025030520033](https://openairdocs.org/sdr/QMLA2025030520033.md): Motor · failed · Mar 5, 2025 · N151AC · Urocop EC130B4 · Air Distribution Fan > WHENEVER THE AIR CONDITIONING IS TURNED ON THERE IS A STRONG BURNING ELECTRICAL SMELL/FUMES - [SDR QMLA2022100720067](https://openairdocs.org/sdr/QMLA2022100720067.md): Bushing · failed · Oct 6, 2022 · N151AC · Urocop EC130B4 · Main Rotor Mast/Swashplate > DURING ASSEMBLY OF THE LOWER SCISSOR THE CLEARANCE “J” COULD NOT BE OBTAINED. REF MM REV 16 AMM 62-33-00,4-1 PARA F.2.C.1.G. THE SCISSORS LINK WAS DISASSEMBLED, AND THE BUSHING LENGTH WAS MEASURED AND FOUND TO BE 3.3046”. A NEW AIR BUS BUSHING P/N 704A33-640-0 - [SDR 2A6D2021021905301](https://openairdocs.org/sdr/2A6D2021021905301.md): Floor Panel · corroded · Feb 19, 2021 · N151AC · Urocop EC130B4 · Fuselage Floor Panel > HAS CORROSION ON THE RT CABIN FLOOR EDGING LOCATED AT APPROXIMATELY STA 1545, WL 2640 AND BL 970R. THE DAMAGE IS.75” LONG BY.90” WIDE AND IS.004”. - [SDR QMLA2019081471968](https://openairdocs.org/sdr/QMLA2019081471968.md): Gearbox · making metal · Aug 7, 2019 · N151AC · Urocop EC130B4 · Main Rotor Gearbox > DURING AAIP INSPECTION 50HR/30 DAY CHIP PLUG INSPECTION, FOUND METAL PARTICLES ON BEVEL REDUCTION GEARBOX CHIP DETECTOR PLUG. DUE TO SIZE AND COMPOSITION OF THE PARTICLES, AIRBUS RECOMMENDED REMOVAL AND REPLACEMENT OF BEVEL REDUCTION GEARBOX AND EPICYCLIC REDU - [SDR QMLA2019011519007](https://openairdocs.org/sdr/QMLA2019011519007.md): Intake · cracked · Jan 15, 2019 · N151AC · Urocop EC130B4 · Engine Air Intake System > WHILE CLEANING THE ENGINE AREA (COWLING OFF DUE TO OTHER MAINT) I FOUND A CRACK ALONG A WELD ON THE LT SIDE OF THE ENGINE INTAKE. - [SDR QMLA2018110878119](https://openairdocs.org/sdr/QMLA2018110878119.md): Hydraulic Line · cracked · Nov 7, 2018 · N151AC · Urocop EC130B4 · Hydraulic System, Main > FOUND RIGID HYDRAULIC LINE SEEPING FROM CONICAL HOUSING TO HYDRAULIC MANIFOLD ON R/H SIDE OF TRANSMISSION. AFTER REMOVING THE LINE & PERFORMING A VISUAL INSPECTION OF THE LINE USING A 10X MAGNIFIER I FOUND THE COMPRESSION FITTING ON THE MANIFOLD SIDE OF THE R - [SDR QMLA2018052958063](https://openairdocs.org/sdr/QMLA2018052958063.md): Switch · failed · May 25, 2018 · N151AC · Urocop EC130B4 · Engine Oil Temperature > SHORTLY AFTER TAKEOFF DURING CLIMB. SCANNED THE AIRCRAFT INSTRUMENTS AND EVERYTHING WAS IN THE NORMAL OPERATING RANGE. NOTICED THE OIL TEMPERATURE HAD CLIMBED AROUND 7-8 DEGREES PAST THE INITIAL SCAN, STILL WITHIN NORMAL OPERATING LIMITATIONS. THE OIL TEMP - [SDR QMLA2017112017127](https://openairdocs.org/sdr/QMLA2017112017127.md): Attach Fitting · cracked · Nov 20, 2017 · N151AC · Urocop EC130B4 · Rotorcraft Tail Boom > CRACK FOUND IN THE RT UPPER HORIZONTAL STAB ATTACH FITTING DURING DAILY INSPECTION. - [SDR QMLA2016020816006](https://openairdocs.org/sdr/QMLA2016020816006.md): Lock Pin · cracked · Feb 8, 2016 · N151AC · Urocop EC130B4 · Passenger/Crew Doors > MANUFACTURER ISSUED 17-5210-FCD-1344 INSPECTION & CHECK OF CREW SLIDING DOOR LATCH MECHANISMS & ROLLER RAILS ASSEMBLIES. INSPECTION REVEALED A CRACKED LOCKING PIN ASSEMBLY ON THE UPPER LT FWD CREW DOOR, PILOT DOOR. - [SDR QMLA2012042812071](https://openairdocs.org/sdr/QMLA2012042812071.md): Warning Light · malfunctioned · Apr 28, 2012 · N151AC · Urocop EC130B4 · Rotor Drive Indicating System > THE OVER LIMIT LIGHT ILLUMINATED ON LANDING. ACCORDING TO PILOT, WAS ON ROUTE, 1 MILE OUT, IN SEMI-WINDY CONDITIONS. DID NOT PUT ACFT IN ANY ABRUPT MOVEMENTS TO CAUSE OVERSPEED CONDITION & NEVER EXPERIENCED A GONG IN HEADSET. AFTER LANDING, AT SHUTDOWN, VEM - [SDR QMLA2011121711120](https://openairdocs.org/sdr/QMLA2011121711120.md): Switch · failed · Dec 17, 2011 · N151AC · Urocop EC130B4 · Ignition Switching > PILOT UPON LANDING, PROCEDED W/ NORMAL ENGINE SHUTDOWN. AFTER ROLLING TWIST GRIP TO IDLE POSITION, AMBER GOV LIGHT ILLUMINATED. ENGINE WAS SHUTDOWN. FAILURE DETECTED ON VEMD, TEST REF 121 W/ LRU ENG START SWITCH LISTED AS FAILED. SWITCH WAS REPLACED. GROUND - [SDR QMLA2011012711016](https://openairdocs.org/sdr/QMLA2011012711016.md): Potentiometer · failed · Jan 27, 2011 · N151AC · Urocop EC130B4 · Engine Indicating System > IN CRUISE FLIGHT, PILOT NOTICED YELLOW GOV LIGHT ILLUMINATED. LANDED, SHUTDOWN ACFT. MECHANIC REVIEWED VEMD FAILURE PAGE ON MX MENU OF VEMD. VEMD INDICATED FAILURE, TEST REF 120, LRU "NF TRIM POT" IN RED. REMOVED YAW ANTICIPATOR POTENTIOMETER AND REPLACED - [SDR QMLA2011012511013](https://openairdocs.org/sdr/QMLA2011012511013.md): Potentiometer · failed · Jan 25, 2011 · N151AC · Urocop EC130B4 · Engine (Turbine/Turboprop) > UPON SHUTDOWN AND COLLECTIVE ROLLED TO IDLE, PILOT NOTICED FLASHING YELLOW GOV LIGHT ILLUMINATED. PILOT SHUTDOWN ACFT. MECHANIC REVIEWED VEMD FAILURE PAGE ON MX MENU OF VEMD. VEMD INDICATED FAILURE, TEST REF 120, LRU "NF TRIM POT" IN RED. REMOVED NF TRIM - [SDR QMLA2010032210009](https://openairdocs.org/sdr/QMLA2010032210009.md): Potentiometer · unsecure · Mar 22, 2010 · N151AC · Urocop EC130B4 · Main Rotor Control > PILOT REPORTED THAT, IN CRUISE FLIGHT, WHEN SLOWLY INCREASING POWER FROM 93 PERCENT NG, PILOT PERCEIVED THAT ACFT EXPERIENCED A YAW/TORQUE KICK. DURING OCCURRENCE, NO GOV LIGHTS ILLUMINATED, NOR WERE ANY GOV LIGHTS ILLUMINATED DURING SHUTDOWN, DURING NORMAL L - [SDR QMLA0911200909030](https://openairdocs.org/sdr/QMLA0911200909030.md): Wheel · loose · Sep 11, 2009 · N151AC · Urocop EC130B4 · Engine BMEP/Torque Indicating > PHONOLIC WHEEL FOR TORQUE SENSING FOUND LOOSE ON ENGINE POWER SHAFT DURING TROUBLESHOOTING OF AMBER GOVERNOR LIGHT ON CAUTION PANEL. POWER SHAFT IS POST TU 81A, PRE TU 122A. - [SDR 2007FA0000575](https://openairdocs.org/sdr/2007FA0000575.md): Hmu · failed · Jun 2, 2007 · N151AC · Urocop EC130B4 · Fuel Control/Turbine Engines > THE PILOT REPORTED A LOUD THUD AND A SUBSEQUENT YAWING OF THE AC, WITH CONTINUED YAWING OF THE AC, AND NO INDICATION ON THE COCKPIT INSTRUMENTATION THAT HE NOTICED. THE PILOT DECLARED AN EMERGENCY AND PERFORMED AN AUTORATATIVE LANDING AT THE AIRPORT. THE VEH - [SDR 3732060207](https://openairdocs.org/sdr/3732060207.md): Hydromech Unit · uncontrollable · Jun 2, 2007 · N151AC · Urocop EC130B4 · Fuel Control/Turbine Engines > ON A LOCAL TRANSPORT FLT, THE AIRCRAFT LAUNCHED AT 0930 P.M. & FLT TO PICK UP THE PATIENT WAS UNEVENTFUL. THE HOSPITAL IS A 15 MIN. FLT. WITH THE PATIENT ON BOARD, (5 PAX TOTAL), AT 2000 FT. MSL IN CRUISE FLT AT 110 KTS & 3 OR 4 MINUTES INTO THE FLT, A LOUD J ## 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 = 'N151AC' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N151AC/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.