# Service difficulty reports: MD Helicopters 500N A list on [MD Helicopters 500N](https://openairdocs.org/model/md-helicopters-500n.md). Newest first. General aviation reporting is voluntary. Page 1 of 3 · 103 reports - [SDR 2023FA0000627](https://openairdocs.org/sdr/2023FA0000627.md): Blade · unknown · Jun 28, 2023 · N103CG · Hughes 500N · Tail Rotor Drive System > IN RNGARDS TO THE MD 500N HOLICOPTER, LHLS IS THE SECOND LIMO THAT I HAVE THE SAME ISSUE WITH THE NOTAR FAN BLADE ASSEMBLIES HAVING A STRANGO WEAR PALLERN ON THE SPAR PORTION OF THE BLADE ASSEMBLY. THESE FAN BLADES PIN: 500N5310-23 HAVO 3122.4 HRS TSN. NOT AL - [SDR 2023FA0000626](https://openairdocs.org/sdr/2023FA0000626.md): Blade · unknown · Jun 28, 2023 · N520PD · Hughes 500N · Tail Rotor Drive System > THO 1.1O500N HERICOPLER HAS A 13 BLADED ANTI IOFQUO FAN (NOTAR FAN) INSTEAD DO TRND1TLONAL LAIL ROLET ASSY. THE NOTAR FAN NSSY'S PIN IS 500N5300-7. THO PIN OF LHE INN BLNDOS ORE 500N5310-23. THESE HAVO N SCRVICO LIFO OF 7500.0 HRS. THOSO FON BLNDE ASSOMBLLOS O - [SDR 2006FA0000552](https://openairdocs.org/sdr/2006FA0000552.md): Cable · broken · May 13, 2006 · N520HB · Hughes 500N · Tail Rotor Control System > PILOT WAS PRACTICING AUTOROTATION AND FELT A CHANGE IN THE PEDALS. AFTER TOUCHDOWN, HE ATTEMPTED TO HOVER BY RAISING THE COLLECTIVE, AND THE HELICOPTER BEGAN TO SPIN, HE LOWERED THE COLLECTIVE, AND SHUTDOWN. NO DAMAGE TO THE HELICOPTER WAS NOTED. THE ROTATI - [SDR 2006FA0000509](https://openairdocs.org/sdr/2006FA0000509.md): Cable · severed · May 13, 2006 · N520HB · Hughes 500N · Tail Rotor Control System > DURING PRACTICE AUTOROTATIONS, PILOT FELT A CHANGE IN THE ANTI-TORQUE PEDALS. AFTER TOUCHDOWN HE ATTEMPTED TO RAISE THE COLLECTIVE AND THE HELICOPTER BEGIN TO SPIN, HE LOWERED THE COLLECTIVE AND SHUTDOWN. NO DAMAGE WAS NOTED. THE ROTATING CONE CONTROL CABLE WA - [SDR 2006FA0000115](https://openairdocs.org/sdr/2006FA0000115.md): Combust Chamber · cracked · Oct 6, 2005 · Hughes 500N · Turbine Engine Combustion Section > DURING AN INSPECTION FOR HIGH TOT THE OUTER COMBUSTION CAN WAS FOUND TO BE CRACKED IN THE LEFT (ARM PIT). (K) - [SDR 2004FA0000733](https://openairdocs.org/sdr/2004FA0000733.md): Mount · out of position · Aug 11, 2004 · N529FB · Hughes 500N · Rotorcraft Tail Boom > AIRCRAFT FOUND TO HAVE CONTACT WITH FAN CONTROL ROD AND FAN DRIVESHAFT. WHICH MAY HAVE BEEN THE CAUSE OF HIGH VIBRATION IN AIRFRAME. MFG CALLED TO CHECK THE ALIGNMENT OF THE FAN MOUNT. SECOND TIME WE HAD RUB WITH DRIVESHAFT SINCE AIRCRAFT WAS NEW. UPON REM - [SDR 2004FA0000722](https://openairdocs.org/sdr/2004FA0000722.md): Mount · out of adjust · Jul 15, 2004 · N528FB · Hughes 500N · Rotorcraft Tail Boom > AIRCRAFT OVERCOME WITH SEVERE VIBRATION ON THROTTLE ROLL UP FROM GROUND IDLE TO FLIGHT IDLE. FOUND FAN CONTROL ROD MADE CONTACT INSIDE FAN DRIVESHAFT. UPON FURTHER INSPECTION FOUND FAN TRANSMISSION MOUNT AT STATION 150 OUT OF ALIGNMENT. SENDING AIRCRAFT BAC - [SDR 2004FA0000721](https://openairdocs.org/sdr/2004FA0000721.md): Mount · out of position · Jul 15, 2004 · N529FB · Hughes 500N · Rotorcraft Flight Control > AIRCRAFT FOUND TO HAVE CONTACT WITH FAN CONTROL ROD AND FAN DRIVESHAFT, WHICH MAY HAVE BEEN THE CAUSE OF HIGH VIBRATION IN AIRFRAME. MFG CALLED TO CHECK THE ALIGNMENT OF THE FAN MOUNT. SECOND TIME, HAD RUB WITH DRIVESHAFT SINCE AIRCRAFT WAS NEW. - [SDR GO42004F00000](https://openairdocs.org/sdr/GO42004F00000.md): Control Cable · broken · Apr 12, 2004 · N501HP · Hughes 500N · Fuel Controlling System > DURING DAILY INSP, THE THRUSTER ASSY SYSTEM WAS OPERATED TO CHECK THE OPERATION AND SMOOTHNESS OF THIS SYSTEM. A LOUD NOISE WAS HEARD AND THE THRUSTER CONE WAS DISCONNECTED FROM THE CONTROL SYSTEM. UPON REMOVING THE TAILBOOM FAIRING TO GET ACCESS TO THE INTE - [SDR CA031017004](https://openairdocs.org/sdr/CA031017004.md): Fuel Control · failed · Oct 4, 2003 · Hughes 500N · Fuel Control/Turbine Engines > (CAN) AFTER LANDING, THROTTLE WAS SNAP ROLLED TO IDLE. N2 WAS NR IMMEDIATELY INCREASED TO 105 PERCENT AND STABILIZED. ENGINE WAS SHUT DOWN BY ROLLING THROTTLE TO CUT OFF. NOTE: ENGINE WAS DUE FOR HOT SECTION, SO RENTAL WAS INSTALLE4D. SUSPECT ENGINE, FCU AND G - [SDR CA030729016](https://openairdocs.org/sdr/CA030729016.md): Control Cable · failed · Jul 10, 2003 · Hughes 500N · Tail Rotor Control System > (CAN) AT PREFLT, PILOT REPORTED A 'BINDING' AT EXTREME RT PEDAL. MAINT DISCONNECTED SECTIONS OF SYS & COULDN`T REPEAT. DAYS LATER PILOT REPORTED SIMILAR BINDING PLUS A 'BANG' BEFORE MOVING SMOOTHLY AGAIN. DURING INVEST, ENGINEERING FOUND BINDING WHERE 2 CABLE - [SDR CA030312016](https://openairdocs.org/sdr/CA030312016.md): Bearing · making metal · Feb 12, 2003 · Hughes 500N · Turbine Section > (CAN) DURING A FLIGHT THE ENGINE CHIP LIGHT ILLUMINATED, THE PILOT LANDED AND THE LOWER CHIP PLUG WAS INSPECTED AND HAD SHINY PARTICLES ON IT. THE AIRCRAFT WAS GROUND RUN FOR 15 MINUTES AND SENT BACK FLYING. THE NEXT DAY HE FLEW FOR 1 HOUR AND HAD ANOTHER CHI - [SDR AUS20020748](https://openairdocs.org/sdr/AUS20020748.md): Strut · cracked · Jul 10, 2002 · Hughes 500N · Main Landing Gear Strut/Axle/Truck > (AUS) LT MAIN LANDING GEAR STRUT CRACKED FROM RIVET HOLE. CRACK LENGTH 9.525MM (0.375IN). - [SDR CA011211017](https://openairdocs.org/sdr/CA011211017.md): Strut · cracked · Dec 4, 2001 · Hughes 500N · Nose/Tail Landing Gear Strut/Axle > (CAN) CRACK FOUND ON UPPER PART OF STRUT AROUND THE BRACE ATTACHMENT HOLE. - [SDR CA011211015](https://openairdocs.org/sdr/CA011211015.md): Strut · cracked · Dec 4, 2001 · Hughes 500N · Nose/Tail Landing Gear Strut/Axle > (CAN) CRACK FOUND ON UPPER PART OF STRUT AROUND THE BRACE ATTACHMENT HOLE. - [SDR CA011211014](https://openairdocs.org/sdr/CA011211014.md): Strut · cracked · Dec 4, 2001 · Hughes 500N · Nose/Tail Landing Gear Strut/Axle > (CAN) CRACK FOUND ON UPPER PART OF STRUT AROUND THE BRACE ATTACHMENT HOLE. - [SDR CA011211013](https://openairdocs.org/sdr/CA011211013.md): Strut · cracked · Dec 4, 2001 · Hughes 500N · Nose/Tail Landing Gear Strut/Axle > (CAN) CRACK FOUND ON UPPER PART OF STRUT AROUND THE BRACE ATTACHMENT HOLE. - [SDR CA011211016](https://openairdocs.org/sdr/CA011211016.md): Strut · cracked · Nov 23, 2001 · Hughes 500N · Nose/Tail Landing Gear Strut/Axle > (CAN) CRACK FOUND ON UPPER PART OF STRUT AROUND THE BRACE ATTACHMENT HOLE. - [SDR AUS20010762](https://openairdocs.org/sdr/AUS20010762.md): Oil System · blocked · Jul 12, 2001 · Hughes 500N · Turbine Engine Oil System > (AUS) NR 6 AND NR 7 BEARING OIL SCAVENGE PORT PARTIALLY BLOCKED BY CARBON DEPOSITS. OIL TYPE HAD BEEN CHANGED FROM MOBIL 254 TO MOBIL 291. - [SDR 20001106SH085](https://openairdocs.org/sdr/20001106SH085.md): Control Rod · chafed · Oct 15, 2000 · N954SD · Hughes 500N · Tail Rotor Control System > PILOT REPORTED, DURING THROTTLE ADVANCE ON RUN-UP, A LOUD RUMBLING NOISE AND SEVERE VIBRATION STARTED ABRUPTLY AS TORQUE APPROACHED 40 PERCENT TORQUE. INSP OF ALL SYS BY MECH FOUND NO PROBLEM AREA. TWO SUBSEQUENT RUNS PRODUCED NO REPEAT OF PROBLEM THIRD RUN, - [SDR 20001108SH027](https://openairdocs.org/sdr/20001108SH027.md): Gear · spalled · Oct 13, 2000 · N526FB · Hughes 500N · Main Rotor Gearbox > MAIN ROTOR CHIP DETECTORS PICKING UP MAJOR METAL. OPENED GEARBOX AND INSPECTED. FOUND SPALLING OF ALL GEARS. SUBMITTER SUGGESTED OIL NOT LUBRICATING UNDER LOADS. USING MOBIL SHC 626 PER MDHC NOTICE NL.001.1. (X) - [SDR 20001103SH001](https://openairdocs.org/sdr/20001103SH001.md): Mast · damaged · Oct 13, 2000 · N522FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE MAIN ROTOR MAST TUBE BLISTERED AND FALLING INTO MAIN ROTOR TRANSMISSION GEARBOX. APPEARED THAT MAIN ROTOR TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF MAIN ROTOR MAST. - [SDR 20001102SH038](https://openairdocs.org/sdr/20001102SH038.md): Mast · damaged · Oct 13, 2000 · N527FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST. - [SDR 20001102SH037](https://openairdocs.org/sdr/20001102SH037.md): Mast · damaged · Oct 13, 2000 · N526FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE MAIN ROTOR MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST. - [SDR 20001102SH036](https://openairdocs.org/sdr/20001102SH036.md): Mast · damaged · Oct 13, 2000 · N525FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE MAIN ROTOR MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBIL SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST. - [SDR 20001102SH035](https://openairdocs.org/sdr/20001102SH035.md): Mast · damaged · Oct 13, 2000 · N524FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE MAIN ROTOR MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST. - [SDR 20001102SH034](https://openairdocs.org/sdr/20001102SH034.md): Mast · damaged · Oct 13, 2000 · N523FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE M/R MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST. - [SDR 20001102SH033](https://openairdocs.org/sdr/20001102SH033.md): Mast · damaged · Oct 13, 2000 · N521FB · Hughes 500N · Main Rotor Mast/Swashplate > FOUND PAINT SEALANT INSIDE MAIN ROTOR MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST. - [SDR CA010219007](https://openairdocs.org/sdr/CA010219007.md): Tube · leaking · Sep 20, 2000 · Hughes 500N · Compressor Bleed Control > (CAN) PILOT REPORTED INCREASED START TEMPERATURE. ON RUN-UP IT WAS DISCOVERED THAT THE LARGE AIR LINE BETWEEN THE ENGINE COMPRESSOR AND THE FIREWALL WAS LEAKING AIR FROM THE FLEXIBLE BRAID SECTION. ENGINE WAS SHUT DOWN AND THE LINE WAS REPLACED. THE LEAK IS NO - [SDR 20001017SH022](https://openairdocs.org/sdr/20001017SH022.md): Nut · loose · Sep 18, 2000 · N520PM · Hughes 500N · Main Rotor Control > AT ACTT: 23.5 HOURS, THE UNILOCK, PN 369A7010501 SN 024598-5326, WAS INSTALLED IN NEW CONDITION TO REPLACE A LEAKING UNILOCK. AFTER 23.6 HRS OF OPERATION, PILOT RETURNED STATING THE CYCLIC CONTROL HAD PLAY LONGITUDINALLY. THE GRIP WOULD MOVE SEVERAL INCHES - [SDR CA000920005](https://openairdocs.org/sdr/CA000920005.md): Turbine · carboned · Aug 11, 2000 · Hughes 500N · Turbine Engine Oil System > (CAN) DURING FLIGHT, A LOSS OF OIL PRESSURE AND TORQUE INDICATION WAS NOTED. AN IMMEDIATE LANDING WAS PERFORMED AND THE ENGINE WAS SECURED. THE ENGINE OIL LEVEL WAS CHECKED AND IT WAS THEN DISCOVERED THAT THE ENGINE OIL TANK WAS ENPTY. THE PILOT STATED - [SDR CA000110025](https://openairdocs.org/sdr/CA000110025.md): Strut · cracked · Dec 15, 1999 · Hughes 500N · Main Landing Gear Strut/Axle/Truck > (CAN) LEFT REAR LANDING GEAR STRUT STRUCTURALLY FAILED. IT APPEARS THAT THE CRACK BEGAN AT RIVET HOLE FOR STRUT FAIRING ATTACHMENT BRACKET. - [SDR 2000ZZZX661](https://openairdocs.org/sdr/2000ZZZX661.md): Governor · failed · Dec 9, 1999 · N525FB · Hughes 500N · Turbine Governor > GOVERNOR FAILURE, UNIT BECOMES ERRATIC IN OPERATION. WILL NOT HOLD ENGINE RPM. SUBMITTER STATED EXPERIENCED THREE SUCH FAILURES THIS YEAR ON FLEET. (X) - [SDR 99ZZZX4701](https://openairdocs.org/sdr/99ZZZX4701.md): Cables · fractured · Oct 25, 1999 · N904PD · Hughes 500N · Main Rotor Head > DURING POST-CRASH EXAMINATION OF THE ANTI-TORQUE CONTROL SYSTEM, FRACTURES WERE FOUND OF THE PUSH/PULL TYPE THRUSTER CONTROL CABLES P/N 500N7201-5 AND -37. THE FORWARD CABLE FRACTURED AT THE SWIVEL BALL JOINT ALLOWING THE HOUSING TO SEPARATE BY 2.95 INCHES. - [SDR CA990630010](https://openairdocs.org/sdr/CA990630010.md): Blade · damaged · Jun 4, 1999 · Hughes 500N · Main Rotor Blades > (CAN) UPON INSPECTION, A VOID WAS DETECTED IN THE GRIP PLATE THAT IS BEYOND THE MANUFACTURER'S SET FORTH REPAIRABLE LIMITS AND ALSO OUTSIDE THE PARAMETERS OFADS AND SBS THAT CALL FOR INSPECTION FOR THESE PROBLEMS. - [SDR 99ZZZX2014](https://openairdocs.org/sdr/99ZZZX2014.md): Switch · failed · Apr 25, 1999 · N522FB · Hughes 500N · Main Rotor Control > PILOT TRIM SWITCH RUN-A-WAY AFT. - [SDR 99ZZZX2358](https://openairdocs.org/sdr/99ZZZX2358.md): Bearing · failed · Feb 1, 1999 · N526FB · Hughes 500N · Turbine Governor > PILOT FOUND GOVERNOR SWAGING ABOVE LIMITS FOR SAFE FLIGHT. ENIGNE SURGING 20 PSI TORQUE AND 5 PERCENT N2. UPON REMOVAL OF GOVERNOR, FOUND DRIVE SHAFT LOCKED-UP. COMPONENT P/N ALAA123065123. - [SDR 98ZZZX2241](https://openairdocs.org/sdr/98ZZZX2241.md): Rod · cracked · May 27, 1998 · N524FB · Hughes 500N · Turbine Section > INSPECTION FOUND GAS PRODUCER INTERCONNECT TUBE WITH CRACKS, 2 EACH, 180 DEGREES APART AT SHORT END. - [SDR 98ZZZX2109](https://openairdocs.org/sdr/98ZZZX2109.md): Torque Tube · misdrilled · May 22, 1998 · N524FB · Hughes 500N · Main Rotor Control > COLLECTIVE TORQUE TUBE HAS BOLT HOLES NOT DRILLED TO PROPER SIZE FOR GEARBOX MOUNT BOLTS TO BE PASSED THROUGH. TWO EACH PARTS FROM FACTORY BOTH UNDERSIZED HOLES. - [SDR 98ZZZX2108](https://openairdocs.org/sdr/98ZZZX2108.md): Torque Tube · misdrilled · May 22, 1998 · N521FB · Hughes 500N · Main Rotor Control > COLLECTIVE TORQUE TUBE HAS BOLT HOLES NOT DRILLED TO PROPER SIZE FOR GEARBOX MOUNT BOLTS TO BE PASSED THROUGH. TWO EACH PARTS FROM FACTORY BOTH UNDERSIZED HOLES. - [SDR 98ZZZX2107](https://openairdocs.org/sdr/98ZZZX2107.md): Push Rod · damaged · May 22, 1998 · N521FB · Hughes 500N · Tail Rotor Control System > DURING INSPECTION PRIOR TO INSTALLATION, GREASE SEALS ON ROD END WERE FOUND TO HAVE DENTS AND DEFORMED FROM FACTORY BUILD-UP. - [SDR 98ZZZX1833](https://openairdocs.org/sdr/98ZZZX1833.md): Trim Switch · failed · Jan 29, 1998 · N523FB · Hughes 500N · Main Rotor Control > CYCLIC TRIM SWITCH RUNS AWAY TO RIGHT SIDE. - [SDR 98ZZZX177](https://openairdocs.org/sdr/98ZZZX177.md): Bellcrank · binding · Dec 16, 1997 · Hughes 500N · Rotorcraft Flight Control > FOUND ON ACCEPTANCE INSPECTION THAT BELLCRANK HAS BOTH PIVOT BEARINGS PRE-LOADED TO A POINT OF NO ROTATION. - [SDR 98ZZZX176](https://openairdocs.org/sdr/98ZZZX176.md): Bellcrank · binding · Dec 16, 1997 · Hughes 500N · Rotorcraft Flight Control > FOUND ON ACCEPTANCE INSPECTION THAT BELLCRANK HAS BOTH PIVOT BEARINGS PRE-LOADED TO A POINT BEARING WILL NOT ROTATE FOR INSTALLATION. - [SDR 98ZZZX85](https://openairdocs.org/sdr/98ZZZX85.md): Hub · vibration · Nov 12, 1997 · N524FB · Hughes 500N · Main Rotor Head > ERRATIC TRACK AND BALANCE.89 IPS AT 11:00 TO.15 AT 9:00 CHANGES BY SHAKING COLLECTIVE GRIP LENGTH. ALSO, APPEARS TO CHANGE BY PULLING ON BLADES. - [SDR 98ZZZX28](https://openairdocs.org/sdr/98ZZZX28.md): Bearing · binding · Nov 12, 1997 · Hughes 500N · Rotorcraft Flight Control > IDLER BELLCRANK FOUND TO HAVE BOTH PIVOT BEARINGS PRELOADED TO THE POINT OF NO ROTATION OF BEARING. FOUND ON INCOMING PARTS INSPECTION. - [SDR 98ZZZX27](https://openairdocs.org/sdr/98ZZZX27.md): Bearing · binding · Nov 12, 1997 · Hughes 500N · Rotorcraft Flight Control > IDLER BELLCRANK FOUND TO HAVE BOTH PIVOT BEARINGS PRELOADED TO A POINT OF NO ROTATION. FOUND ON ACCEPTANCE INSPECTION. - [SDR 98ZZZX26](https://openairdocs.org/sdr/98ZZZX26.md): Bearing · binding · Nov 12, 1997 · Hughes 500N · Rotorcraft Flight Control > IDLER BELLCRANK HAS BOTH PIVOT BEARINGS PRELOADED TO A POINT OF NO ROTATION. FOUND ON INCOMING ACCEPTANCE INSPECTION. - [SDR 98ZZZX25](https://openairdocs.org/sdr/98ZZZX25.md): Bearing · binding · Nov 12, 1997 · Hughes 500N · Rotorcraft Flight Control > IDLER BELLCRANK HAS BOTH PIVOT BEARINGS PRELOADED TO A POINT OF NO ROTATION. FOUND DURING INCOMING ACCEPTANCE INSPECTION. - [SDR 98ZZZX24](https://openairdocs.org/sdr/98ZZZX24.md): Bearing · binding · Nov 12, 1997 · Hughes 500N · Rotorcraft Flight Control > IDLER BELLCRANK HAS BOTH PIVOT BEARINGS PRE-LOADED TO A POINT OF NO ROTATION. BINDING COULD CAUSE BOLT FAILURE. FOUND ON INCOMING ACCEPTANCE INSPECTION. Next page: https://openairdocs.org/model/md-helicopters-500n/reports.md?page=2 ## 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 aircraft_model_key = '500N' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/md-helicopters-500n/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.