# MD Helicopters 600N - Type: Aircraft model (FAA registry) - Registry code: 3030003 - Manufacturer (registry): MD HELICOPTERS INC - Model: 600N - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 4 - Weight class: 12,500 to 19,999 lb - Certification: Type certificated - Data sheet: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (OpenAirDocs) - Holder: MD Helicopters LLC - Registered aircraft: 12 - Page: https://openairdocs.org/model/md-helicopters-600n Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2026-19-01](https://openairdocs.org/ad/2026-19-01): Rotorcraft flight control · MD Helicopters 369, 369 (Army YOH-6A), 369A and 11 more. Effective Oct 20, 2026 - [AD 2025-17-11](https://openairdocs.org/ad/2025-17-11): tail rotor control system · MD Helicopters 369 (Army YOH-6A), 369A (Army OH-6A), 369D and 9 more. Effective Oct 10, 2025 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2021-22-11](https://openairdocs.org/ad/2021-22-11): Tail Rotor Control System · MD Helicopters 369D, 369E, 369F and 7 more. Effective Jan 10, 2022 - [AD 2020-18-20](https://openairdocs.org/ad/2020-18-20): Main Rotor Blade · MD Helicopters 369A, 369D, 369E and 7 more. Effective Oct 28, 2020 - [AD 2020-11-07](https://openairdocs.org/ad/2020-11-07): Main Rotor System · MD Helicopters 369D, 369E, 369FF and 6 more. Effective Jun 30, 2020 - [AD 2020-06-11](https://openairdocs.org/ad/2020-06-11): Main Rotor Control · MD Helicopters 600N. Effective Apr 28, 2020 - [AD 2019-05-04](https://openairdocs.org/ad/2019-05-04): Main Rotor Blade · MD Helicopters 369A, 369D, 369E and 7 more. Effective Apr 17, 2019 - [AD 2016-04-15](https://openairdocs.org/ad/2016-04-15): Main Rotor Blades · MD Helicopters 369A, 369D, 369E and 6 more. Effective Mar 31, 2016 - [AD 2016-01-19](https://openairdocs.org/ad/2016-01-19): Rotorcraft Tail Boom · MD Helicopters 500N and 600N. Effective Feb 25, 2016 - [AD 2013-03-03](https://openairdocs.org/ad/2013-03-03): Tail rotor blades · MD Helicopters 500N, 600N and MD900. Effective Mar 15, 2013 - [AD 2008-22-52](https://openairdocs.org/ad/2008-22-52): Yaw Stability Augmentation System · MD Helicopters 500N and 600N. Effective Dec 15, 2008 - [AD 2008-20-05](https://openairdocs.org/ad/2008-20-05): Fuselage · MD Helicopters 600N. Effective Oct 27, 2008 - [AD 2007-05-51](https://openairdocs.org/ad/2007-05-51): Lateral mixer output link assembly (mixer link) · MD Helicopters 600N. Effective May 7, 2007 - [AD 2005-21-02](https://openairdocs.org/ad/2005-21-02): Main rotor blade (blade) · Main rotor blades P/N 500P2300-501/503/505 (Helicopter Technology STC SR01050LA or 2 others). Effective Nov 1, 2005 - [AD 2004-22-12](https://openairdocs.org/ad/2004-22-12): Fuselage Station 75 Control Support Bracket Assembly · MD Helicopters 600N. Effective Dec 3, 2004 - [AD 2004-20-08](https://openairdocs.org/ad/2004-20-08): Forward and center thruster control cable assembly connector (connector) · MD Helicopters 500N and 600N. Effective Oct 21, 2004 - [AD 2003-16-11](https://openairdocs.org/ad/2003-16-11): Main rotor drive shaft assembly (drive shaft) · MD Helicopters 600N. Effective Sep 30, 2003 - [AD 2000-08-22](https://openairdocs.org/ad/2000-08-22): Turbine Outlet Temperature (TOT) Indicating System · MD Helicopters 369D, 369E, 500N and 1 more. Effective May 22, 2000 - [AD 2000-04-21](https://openairdocs.org/ad/2000-04-21): Fuel Hose · MD Helicopters 600N. Effective Apr 5, 2000 - [AD 99-25-08](https://openairdocs.org/ad/99-25-08): Thruster Control Cable Conduit Cap · MD Helicopters 500N and 600N. Effective Mar 1, 2000 - [AD 99-20-12](https://openairdocs.org/ad/99-20-12): Bracket P/N 369F5190-1 · MD Helicopters 369D, 369E, 369FF and 2 more. Effective Nov 4, 1999 - [AD 99-17-18](https://openairdocs.org/ad/99-17-18): Flight Control Components · MD Helicopters 600N. Effective Sep 24, 1999 - [AD 99-08-07](https://openairdocs.org/ad/99-08-07): Engine Control And Warning System · MD Helicopters 369E, 369FF, 500N and 1 more. Effective Apr 21, 1999 - [AD 99-04-12](https://openairdocs.org/ad/99-04-12): Input Shaft Coupling Assembly · MD Helicopters 369D, 369E, 369FF and 3 more. Effective Mar 23, 1999 - [AD 98-15-26](https://openairdocs.org/ad/98-15-26): Main Rotor Blade Cracking Inspection · MD Helicopters 369A, 369D, 369E and 8 more. Effective Aug 3, 1998 Historical (superseded or no longer in force): - [AD 2024-23-06](https://openairdocs.org/ad/2024-23-06) (historical): Rotorcraft Flight Control · MD Helicopters 369, 369A, 369D and 11 more. Effective Dec 24, 2024 - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 2008-18-52](https://openairdocs.org/ad/2008-18-52) (historical): Prevent loss of yaw control and subsequent loss of control of the helicopter · MD Helicopter 500N, 600N and MD900 - [AD 2008-18-51](https://openairdocs.org/ad/2008-18-51) (historical): Vertical Stabilizer Control System (VSCS) · MD Helicopter 500N, 600N and MD900 - [AD 2008-05-17](https://openairdocs.org/ad/2008-05-17) (historical): Aft fuselage skin · MD Helicopter 600N. Effective Apr 16, 2008 - [AD 2006-08-12](https://openairdocs.org/ad/2006-08-12) (historical): Upper tailboom attachment fittings · MD Helicopter 600N. Effective Apr 27, 2006 - [AD 2001-24-51](https://openairdocs.org/ad/2001-24-51) (historical): Upper Tailboom Attachments, Nutplates and Angles · MD Helicopter 600N. Effective Apr 29, 2002 ## Information bulletins (advisory) (4) - [SAIB AIR-21-19R1](https://openairdocs.org/saib/AIR-21-19R1): AERIAL TOW EQUIPMENT, Side Pull Hook. Issued Nov 29, 2021 - [SAIB AIR-21-19](https://openairdocs.org/saib/AIR-21-19) (historical): AERIAL TOW EQUIPMENT, Side Pull Hook. Issued Nov 29, 2021 - [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012 - [SAIB SW-07-17](https://openairdocs.org/saib/SW-07-17): Lateral mixer output link assembly (mixer link), part number 600N7636. Issued Feb 16, 2007 ## Registered aircraft (12) - [N209EC](https://openairdocs.org/aircraft/N209EC): [Yavapai County](https://openairdocs.org/faa-owner/YAVAPAI%20COUNTY), [Prescott, AZ](https://openairdocs.org/faa-place/AZ/Prescott), built 2007, S/N RN074 - [N261VS](https://openairdocs.org/aircraft/N261VS): [Vertol Systems Company Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20COMPANY%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), S/N RN061 - [N266VS](https://openairdocs.org/aircraft/N266VS): [Vertol Systems Company Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20COMPANY%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 2002, S/N RN066 - [N300FX](https://openairdocs.org/aircraft/N300FX): [Fxc Nation Leasing LLC](https://openairdocs.org/faa-owner/FXC%20NATION%20LEASING%20LLC), [Palm Springs, FL](https://openairdocs.org/faa-place/FL/Palm%20Springs), built 2000, S/N RN056 - [N420GC](https://openairdocs.org/aircraft/N420GC): built 2005, S/N RN053 - [N555MS](https://openairdocs.org/aircraft/N555MS): [Avioelectronica Inc DBA](https://openairdocs.org/faa-owner/AVIOELECTRONICA%20INC%20DBA), [Coral Springs, FL](https://openairdocs.org/faa-place/FL/Coral%20Springs), S/N RN079 - [N600FT](https://openairdocs.org/aircraft/N600FT): [Lancair Of Texas DBA](https://openairdocs.org/faa-owner/LANCAIR%20OF%20TEXAS%20DBA), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2008, S/N RN077 - [N600MW](https://openairdocs.org/aircraft/N600MW): West Sussex, built 2001, S/N RN064, Sale reported - [N600NR](https://openairdocs.org/aircraft/N600NR): [Sharcott Inc Trustee](https://openairdocs.org/faa-owner/SHARCOTT%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2008, S/N RN073 - [N678SK](https://openairdocs.org/aircraft/N678SK): [Lga 1992 LLC](https://openairdocs.org/faa-owner/LGA%201992%20LLC), [Aubrey, TX](https://openairdocs.org/faa-place/TX/Aubrey), built 2010, S/N RN078 - [N69VS](https://openairdocs.org/aircraft/N69VS): [Wind River Aviation LLC](https://openairdocs.org/faa-owner/WIND%20RIVER%20AVIATION%20LLC), [Lawton, OK](https://openairdocs.org/faa-place/OK/Lawton), built 2006, S/N RN069 - [N745MB](https://openairdocs.org/aircraft/N745MB): [Cobra Aviation Services LLC](https://openairdocs.org/faa-owner/COBRA%20AVIATION%20SERVICES%20LLC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 2002, S/N RN067 ## NTSB investigations (4) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB GAA25WA242](https://openairdocs.org/ntsb/GAA25WA242), Aug 15, 2025: MD Helicopters 600N (N600MW), Storrington, United Kingdom, substantial damage - [NTSB CEN24FA049](https://openairdocs.org/ntsb/CEN24FA049), Nov 29, 2023: MD Helicopters 600 (N745MB), Sterling City, TX, substantial damage, 2 fatal. Probable cause: The pilot’s failure to maintain clearance from a power line pole’s static arm during forecasted gusting wind conditions, un-forecasted light turbulence, and un-forecasted low-level wind shear… - [NTSB CHI08CA098](https://openairdocs.org/ntsb/CHI08CA098), Mar 26, 2008: McDonnell Douglas 600N (N160KC), Waverly, OH, substantial damage. Probable cause: The pilot's improper flare. - [NTSB LAX01FA277](https://openairdocs.org/ntsb/LAX01FA277), Aug 14, 2001: MD Helicopters 600N (N70457), Fountain Hills, AZ, substantial damage. Probable cause: the manufacturer's pilot's failure to maintain yaw control and main rotor speed while recovering from an unusual attitude induced by the customer pilot's inadequate control inputs while maneuvering… ## FAA accident and incident reports (3) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20231129016729A](https://openairdocs.org/incident/20231129016729A), Nov 29, 2023: Md Helicopters Inc 600N (N745MB), Sterling City, TX, Destroyed, 2 fatal. On November 28, 2023, at approximately 1430, a MD600N helicopter aircraft impacted the ground at N31 55'26 ' W100 58'9" approximately 8 miles northwest of… - [Accident 20080326832449A](https://openairdocs.org/incident/20080326832449A), Mar 26, 2008: Doug 600N (N160KC), Waverly, OH, Destroyed. (-23) At approx. 1900 EDT pilot executed a practice visual approach to pke county airport (keon) in visual meteorological conditions. During the flare for… - [Accident 20010814020769A](https://openairdocs.org/incident/20010814020769A), Aug 14, 2001: Doug 600N (N70457), Fountain Hills, AZ, No damage. (-23) The ship was being demo'ed. The pilot tried a maneuver at low alt. And the nose pitched down. The commercial pilot took control but too late. The acft… ## Service difficulty reports (74, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2026FA0000086](https://openairdocs.org/sdr/2026FA0000086), Feb 5, 2026: SPRAG ASSY. SLIPPED. THE REPAIR STATION REPORTED COMPLETION OF AN OVERHAUL ON AN OVERRUNNING CLUTCH ASSY, OVERHAUL RECORDS INDICATE THAT BEARING P/N 369F5457-1 WAS INSTALLED IN LIEU - [SDR HEFR202401160002](https://openairdocs.org/sdr/HEFR202401160002), Jan 16, 2024: SHAFT. CRACKED. TURBINE UNIT WAS RECEIVED FOR LOUD NOISE DURING IDLE AND BAD VIBRATIONS. DURING OVERHAUL INSPECTION THE PT OUTER SHAFT WAS IDENTIFIED WITH A CRITICAL ISSUE, A V - [SDR FDEA202210112551](https://openairdocs.org/sdr/FDEA202210112551), Oct 11, 2022: PUSHROD. FAILED. AFTER TAKEOFF NOSE GEAR DID NOT RETRACT. HAD 2 RED LIGHTS AND COULD HERE THE AIRFLOW NOISE FROM THE DOWN NOSE GEAR. DID WRY AND GOT 4 GREEN DOWN. RETURNED TO TP - [SDR FDEA202208292097](https://openairdocs.org/sdr/FDEA202208292097), Aug 29, 2022: SUPPORT. CRACKED. CABIN - WHILE ACCOMPLISHING FLOOR BEAM REPAIR PER SPECIAL/NONROUTINE MAINTENANCE FORM N01209 FOUND CHANNEL (SUPPORT) AT LEFT HAND STATION 1256 X=116 CRACKED. CR - [SDR FDEA202208212018](https://openairdocs.org/sdr/FDEA202208212018), Aug 21, 2022: HARNESS. FAILED. PDIS 628 28-40 2047 21AUG22 MEM OPEN U AIR TURN BACK FOR MULTIPLE LEVEL 1 AND LEVEL 2 FUEL SYSTEM ALERTS. TANK 1 QTY GAUGE WAS INTERMITTENT AND GAVE NUMEROUS AN - [SDR FDEA202208102072](https://openairdocs.org/sdr/FDEA202208102072), Aug 10, 2022: DOUBLER. CRACKED. R/H FIXED LEADING EDGE SKIN HAS A .250 IN. CRACK AT SLAT TRACK #10 CUT OUT AFT I/B CORNER. INSTALLED FILLER AND DOUBLER ON R/H FIXED LEADING EDGE SKIN AT WING S - [SDR FDEA202204301098](https://openairdocs.org/sdr/FDEA202204301098), Apr 30, 2022: NONE. NONE. PDIS 316 27-50 7006 30APR22 SLC OPEN U UPON FLAPS 35 SELECTION, RECEIVED LEVEL 2 SLAT DISAG. ALERT. INITIATED GO AROUND, AND THEN RECEIVED LEVEL 2 FLAP DISAG. A - [SDR 2022F00014](https://openairdocs.org/sdr/2022F00014), Dec 14, 2021: SKIN. CORRODED. RH UPPER WING CENTER L/E SKIN DOUBLER HAS CORROSION BETWEEN STA.XFS=422.75 AND XS=442.185. REF NRC# B000102. - [SDR 2022F00013](https://openairdocs.org/sdr/2022F00013), Nov 20, 2021: CAP. CRACKED. RH I/B LEADING EDGE AUX FUEL TANK O/B SPAR UPPER FLANGE ANGLE CRACKED. REF NRC# B000385. - [SDR 2021F00361](https://openairdocs.org/sdr/2021F00361), Nov 12, 2021: INTERCOSTAL. CORRODED. MAIN CABIN AFT FUSELAGE INTERCOSTAL SUPPORT HAS CORROSION BETWEEN STA. 1360-1380 LON 18R. REF NRC B000316. - [SDR 2021FA0000349](https://openairdocs.org/sdr/2021FA0000349), Nov 12, 2021: INTERCOSTAL. CRACKED. MAIN CABIN FWD. FLOOR AREA R/H SIDE HAS A CRACKED INTERCOSTAL AT STA. 270.000, REF NRC B000331. - [SDR 2021F00380](https://openairdocs.org/sdr/2021F00380), Nov 6, 2021: INTERCOSTAL. DAMAGED. AFT CARGO COMP., AFT BULKHEAD L/H PROFINE SUPPORT/INTERCOSTAL HAS MISDRILLED HOLES, REF NRC B000183. - [SDR 2021F00387](https://openairdocs.org/sdr/2021F00387), Nov 5, 2021: INTERCOSTAL. CRACKED. AFT CARGO COMPARTMENT FORWARD BULKHEAD R/H UPPER ATTACH PANEL PROFILE (INTERCOSTAL)CRACKED AT STA. 980. REF NRC B000207. - [SDR 2021FA0000348](https://openairdocs.org/sdr/2021FA0000348), Nov 5, 2021: INTERCOSTAL. CRACKED. FWD. CARGO FWD. BULKHEAD CEILING HAS CRACKED INTERCOSTAL AT STA. 270.00, REF. NRC B000152 - [SDR 2022F00123](https://openairdocs.org/sdr/2022F00123), Nov 5, 2021: FORMER. CRACKED. L/H WING O/B L/E UPPER RIB/FORMER IS CRACKED AT STA. XFS.760.000, REF. NRC B000114. - [SDR 2021FA0000340](https://openairdocs.org/sdr/2021FA0000340), Nov 5, 2021: SKIN. CORRODED. R/H HORZ. STAB L/E I/B SECTION UPPER SKIN HAS CORROSION AT STA. XFS. 60.000, REF. NRC B000143. - [SDR 2022F00122](https://openairdocs.org/sdr/2022F00122), Nov 5, 2021: SKIN. CORRODED. R/H HORZ. STAB L/E I/B SECTION LOWER SURFACE SKIN HAS CORROSION AT STA. XFS. 122.5 & 128.750, REF NRC B000142. - [SDR 2022F00007](https://openairdocs.org/sdr/2022F00007), Nov 5, 2021: SKIN. CORRODED. R/H HORZ. STAB L/E O/B SECTION UPPER SURFACE HAS CORROSION AROUND FASTENER HOLE AT STA. XFS. 272.500, REF NRC B000140. - [SDR 2021F00384](https://openairdocs.org/sdr/2021F00384), Nov 5, 2021: RIB. CRACKED. R/H I/B FLAP O/B SUPPORT RIB IS CRACKED AT LOWER SECTION OF INTERCONNECT FITTING, REF NRC B000168. - [SDR 2022F00114](https://openairdocs.org/sdr/2022F00114), Nov 4, 2021: SKIN. CORRODED. RT WING O/B L/E LWR SKIN HAS MULTIPLE AREAS OF CORROSION AT STA. XFS 566.250. REF NRC # B000092. - [SDR 2021F00332](https://openairdocs.org/sdr/2021F00332), Nov 4, 2021: SKIN. CORRODED. R/H WING L/E SKIN UPPER SURFACE BETWEEN STA XOLD 67.750 TO STA XW 485, HAS CORROSION ON EXISTING REPAIR DOUBLER. REF NRC B000104 - [SDR 2021F00331](https://openairdocs.org/sdr/2021F00331), Nov 4, 2021: SKIN. CORRODED. RT WING UPPER FORWARD SKIN HAS CORROSION AT STA.XRS= 74.869. REF NRC B000098. - [SDR 2020F00346](https://openairdocs.org/sdr/2020F00346), Jul 27, 2020: ENGINE. FAILED. THE FRONT PASSENGER AND I DETECTED THE SMELL OF SMOKE IN THE FRONT OF THE CABIN AND SAW SMOKE RISING FROM UNDER THE FORWARD SEAT AREA. FROM APPROXIMATELY 250FT - [SDR 11RR20190820767](https://openairdocs.org/sdr/11RR20190820767), Aug 15, 2019: CABLE. BROKEN. ON TAKEOFF PILOT REALIZED HE HAD NO ANTI-TORQUE INPUT WITH LEFT PEDAL INPUT. THE PILOT LOWERED THE COLLECTIVE IMMEDIATELY BUT THE AIRCRAFT ROTATED 180 DEGREES B - [SDR FDEA201807141713](https://openairdocs.org/sdr/FDEA201807141713), Jul 14, 2018: NONE. NONE. TANK 3 TIP TRAPPED & TNK 3 FUEL QTY LO ALERT AT CRUISE FUEL QTY- 21.0K, QRH COMPLIED WITH. ELECTED TO PUT FUEL SYSTEM MANUAL AND TRANSFER FUEL FROM TANK NR 2. A - [SDR 2017F00117](https://openairdocs.org/sdr/2017F00117), Jun 5, 2017: GEAR. CRACKED. MAIN ROTOR TRANSMISSION OIL PRESSURE LIGHT ILLUMINATED DURING FLIGHT. IMMEDIATELY LANDED AIRCRAFT AND FOUND NO OIL PRESSURE BEING SUPPLIED BY LUBE PUMP. ON FURT - [SDR 2016FA0000080](https://openairdocs.org/sdr/2016FA0000080), Feb 9, 2016: BLADE. CRACKED. 4.5 INCH CRACK IN THE UPPER AND LOWER MAIN ROTOR BLADE SKIN AT BS 91. - [SDR 2016FA0000033](https://openairdocs.org/sdr/2016FA0000033), Jan 7, 2016: BLADES. FAILED. AIRCRAFT PICKED UP TO A HOVER AND PILOT HEARD A LOUD SHUDDER NOISE AND PUT AIRCRAFT ON GROUND. ON INSPECTION, FOUND ALL 13 NOTAR FAN BLADES DESTROYED WITH DAMAG - [SDR 11RR201409190001](https://openairdocs.org/sdr/11RR201409190001), Sep 19, 2014: LINE. DETERIORATED. OIL LINE FROM TRANSMISSION TO OIL COOLER BEGAN LEAKING AT SWEDGED FITTING ON THE TRANSMISSION SIDE. OIL WAS INJESTED INTO THE OIL COOLER BLOWER AND CAUSED FUMES - [SDR HLXR2014FA0000369](https://openairdocs.org/sdr/HLXR2014FA0000369), May 7, 2014: DRUM. CRACKED. FOUND CRACKS ON DRUM ASSEMBLY DURING TWO YEAR INSPECTION ON FLIGHT CONTROLS. TWO POSTS HAD ONE CRACK EACH, RUNNING HALF THE MOUNT POST CIRCUMFERENCE. CRACKS MAY - [SDR CA081201009](https://openairdocs.org/sdr/CA081201009), Nov 28, 2008: ANGLE. CRACKED. (CAN) FUSELAGE ANGLE FOUND CRACKED DURING A TAILBOOM INSPECTION. PART IS NOT READILY VISIBLE OR A PLACE OF INTEREST DURING INSPECTIONS AND MAY HAVE GONE SOME TI - [SDR CA081201008](https://openairdocs.org/sdr/CA081201008), Sep 19, 2008: CHIP DETECTOR. CRACKED. (CAN) BOTH TEDESCO B7936S CHIP DETECTOR BASES FOUND CRACKED AT BASE OF O-RING FLANGE. CAUSED BY OVERTORQUE DURING AN EARLIER INSTALLATION. CRACKS NOT VISIBLE UN - [SDR CA060330003](https://openairdocs.org/sdr/CA060330003), Mar 30, 2006: MOUNT. CRACKED. (CAN) CRACKS WERE FOUND IN THE MOUNT IS SIMILAR LOCATION ON 2 COMPANY AIRCRAFT. (TC NR 20060330003) - [SDR CA060608006](https://openairdocs.org/sdr/CA060608006), Mar 21, 2006: TAIL BOOM. SEPARATED. (CAN) AIRCRAFT INVOLVED IN EXTERNAL LIFT OPERATIONS. TAIL BOOM ASSY SEPARATED FROM FUSELAGE IN FLIGHT, AIRCRAFT CRASHED ON RT SIDE OF FUSELAGE IN A REMOTE CLEAR - [SDR CA060608005](https://openairdocs.org/sdr/CA060608005), Jan 30, 2006: IMPELLER. CRACKED. (CAN) PILOT REPORTED HIGH TURBINE TEMPERATURES IN FLIGHT, RETURNED TO MAINTENANCE FACILITY AND FOUND CRACK IN COMPRESSOR SCROLL AREA UPON VISUAL INSPECTION AFTE - [SDR 2005FA0000772](https://openairdocs.org/sdr/2005FA0000772), May 5, 2005: FITTING. CRACKED. UPPER RT TAILBOOM ATTACH FITTING CRACKED. THIS IS THE SAME AREA COVERED IN AD AND SB, 25 HOUR INSPECTION. (K) - [SDR CA041104010](https://openairdocs.org/sdr/CA041104010), Oct 25, 2004: BLADE. CRACKED. (CAN) M/R BLADE FOUND WITH CHORDWISE CRACK AT STA 90.0 DURING ROUTINE 100 HOUR INSPECTION.PILOT THOUGHT HE FELT A SLIGHT CHANGE IN AIRCRAFT VIBRATION LEVELS DUR - [SDR 3983](https://openairdocs.org/sdr/3983), Jul 17, 2003: TORQUE TUBE. CRACKED. PILOT NOTED DURING PREFLIGHT INSP ON RAMP, THAT THE UPPER LT VERTICAL STAB WAS BENT IN APPRX 3 INCHES AT THE TOP. VIDEO FOOTAGE OF THE FBO WAS REVIEWED AND IT W - [SDR AUS20030692](https://openairdocs.org/sdr/AUS20030692), May 2, 2003: BULKHEAD. CRACKED. (AUS) FUSELAGE BULKHEAD CRACKED AT TOP RT TAIL BOOM FITTING BRACKET.FOUND DURING INSPECTION IAW AD/HU389/108. - [SDR GFV2002F00000](https://openairdocs.org/sdr/GFV2002F00000), Aug 15, 2002: DUCT. CRACKED. EXHAUST DUCT CONTINUALLY CRACKS FROM THE FLANGE, RUNNING TO THE END OR OUTLET OF THE DUCT. DUCT ALSO EXHIBITS BLUING FROM EXCESS HEAT. - [SDR AUS20020750](https://openairdocs.org/sdr/AUS20020750), Jul 15, 2002: ENGINE. FAILED. (AUS) ENGINE PROBLEM. LIMITED INFORMATION PROVIDED. - [SDR 2002FA0000449](https://openairdocs.org/sdr/2002FA0000449), Apr 4, 2002: STABILIZER. CRACKED. DURING A ROUTINE INSPECTION WE FOUND THE UPPER AND LOWER VERTICAL STABILIZERS TO HAVE CRACKS IN THE MOUNTING BORE EMANATING FROM THE BOLT HOLES THAT ATTACH THE - [SDR 2002FA0000447](https://openairdocs.org/sdr/2002FA0000447), Apr 4, 2002: STABILIZER. CRACKED. DURING A ROUTINE INSPECTION WE FOUND THE UPPER AND LOWER VERTICAL STABILIZERS TO HAVE CRACKS IN THE MOUNTING BORE EMANATING FROM THE BOLT HOLES THAT ATTACH THE - [SDR 2001FA0000542](https://openairdocs.org/sdr/2001FA0000542), Oct 26, 2001: FITTING. CRACKED. AFTER THE PILOT REPORTED UNUSUAL TAILBOOM MOVEMENT DURING HIS PREFLIGHT IHSPECTION , ONE OF OUR MECHANICS REMOVE THE TAILBOOM ATTACHMENT FAIRING. HE FOUND THE R - [SDR 2001FA0000541](https://openairdocs.org/sdr/2001FA0000541), Oct 26, 2001: ANGLE. CRACKED. DURING INSPECTION OF THE RT UPPER TAILBOOM MOUNT WE FOUND P/N 500N3129-6 ANGLE CRACKED. TO INSPECT, YOU MUST REMOVE THE RIVETED CLOSURE ,ON THE SIDE OF THE FUSE - [SDR 2001FA0000540](https://openairdocs.org/sdr/2001FA0000540), Oct 26, 2001: ANGLE. CRACKED. INSPECTED RT UPPER TAILBOOM ATTACH FITTING ON FUSELAGE . WE FOUND A CRACK IN ANGLE P/N 500N3129-6. THIS ANGLE CAN ONLY BE SEEN BY REMOVAL OF THE RIVETED PANEL O - [SDR 2001FA0000488](https://openairdocs.org/sdr/2001FA0000488), Oct 23, 2001: BOLT. BROKEN. DURING PREFLIGHT PILOT FOUND TAILBOOM BOLT MOVED. MAINTENANCE REMOVED COVER FOUND BOLT SAFETIED, BUT BROKEN 2.5 THREADS FROM SHANK BOLT REMOVED AND REINSTALLED - [SDR AUS20011060](https://openairdocs.org/sdr/AUS20011060), Oct 4, 2001: VANE. CRACKED. (AUS) COMPRESSOR SCROLL ASSEMBLY RT TURNING VANE CRACKED. A PIECE OF THE VANE APPROXIMATELY 38.1MM BY 17.78MM (1.5IN BY 0.7IN) WAS MISSING. A SMALL PIECE OF THE - [SDR 2001FA0000296](https://openairdocs.org/sdr/2001FA0000296), Sep 7, 2001: CONTROL ROD. DAMAGED. DURING REMOVAL OF THE AFT FAN (NOTOR) CONTROL ROD P/N 500N7113-11 WE FOUND SOME CONTACT DAMAGE. IT APPEARS THIS ROD IS MAKING LIGHT CONTACT WITH THE FAN GEARBOX - [SDR 2001FA0000294](https://openairdocs.org/sdr/2001FA0000294), Sep 7, 2001: CONTROL ROD. DAMAGED. DURING REMOVAL OF THE AFT FAN (NOTAR) CONTROL ROD P/N 500N7113-11 WE FOUND SOME CONTACT DAMAGE. IT APPEARS THIS ROD IS MAKING CONTACT WITH THE FAN GEARBOX OUTPU All 74: https://openairdocs.org/model/md-helicopters-600n/reports.md ## STCs that may be installed (OpenAirDocs) (71, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies. Whelen Aerospace Technologies - [STC SR01050LA](https://openairdocs.org/stc/SR01050LA): Installation of main rotor blades P/N 500P2300-501/503/505. Helicopter Technology Company - [STC SR00862LA](https://openairdocs.org/stc/SR00862LA): Installation of aft belly utility mount. Airfilm Camera Systems LLC - [STC SR01078LA](https://openairdocs.org/stc/SR01078LA): Installation of right side dual utility mount, in accordance with FAA Approved Aero Pacific Master Drawing List for Right Side Dual Utility Mount, MDL 6003, dtd 4/15/00 or later FAA approved revision. Airfilm Camera Systems LLC - [STC SH2735NM](https://openairdocs.org/stc/SH2735NM): Installation of pneumatic door actuators. Dart Aerospace USA Inc - [STC SR02808LA](https://openairdocs.org/stc/SR02808LA): Installation of MD500 Side Pull Kit. Aerocraft Incorporated - [STC SH5206NM](https://openairdocs.org/stc/SH5206NM): Installation of two underfuselage jacking hard points. Dart Aerospace USA Inc - [STC SR09178RC](https://openairdocs.org/stc/SR09178RC): Installation of a vapor-cycle air conditioning system with a belt driven compressor. MD Helicopters LLC - [STC SR00314AT](https://openairdocs.org/stc/SR00314AT): Installation of engine firewall in Hughes 369 model helicopter. Thoroughbred Aviation Maintenance Inc - [STC SR00450AT](https://openairdocs.org/stc/SR00450AT): Installation of a seat pan inspection panel. Thoroughbred Aviation Maintenance Inc - [STC SR01839AT](https://openairdocs.org/stc/SR01839AT): Installation of cyclic friction levers. Thoroughbred Aviation Maintenance Inc - [STC SR02693LA](https://openairdocs.org/stc/SR02693LA): Installation of a redundant system for the primary Cargo Hook system when conducting Human External Cargo (HEC) external loads operations. Onboard Systems International LLC - [STC SH4908NM](https://openairdocs.org/stc/SH4908NM): Fabrication of Onboard Systems Model 200-034-00, 200-034-01, and 200-034-02 Load Weigh Kits. Onboard Systems International - [STC SR00525SE](https://openairdocs.org/stc/SR00525SE): Fabrication of Onboard Systems Model 200-231-00 and 200-231-01 Cargo Hook Attach Point Kit and installation of these Cargo Hook Attach Point Kits. Onboard Systems International - [STC SR00892SE](https://openairdocs.org/stc/SR00892SE): Fabrication of Onboard Systems International Model 200-264-00, 200-264-01, and 200-264-02 Cargo Hook Kits. Onboard Systems International - [STC SR02001SE](https://openairdocs.org/stc/SR02001SE): Fabrication and installation of Model 72448 locking fuel cover assembly. Timberline Aerospace LLC - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR01343NY](https://openairdocs.org/stc/SR01343NY): Installation of main rotor blade tie down tips. VIH Aerospace Inc - [STC SR02124SE](https://openairdocs.org/stc/SR02124SE): Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality;. Garmin International Inc - [STC SR02728NY](https://openairdocs.org/stc/SR02728NY): Installation of Quick Release Mounting Provisions on the right or left side. Dart Aerospace Limited - [STC SA615EA](https://openairdocs.org/stc/SA615EA): Installation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights. Whelen Aerospace Technologies - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SH2554NM](https://openairdocs.org/stc/SH2554NM): Installation of Modified front window canopy. The NORDAM Group LLC - [STC SR02586LA](https://openairdocs.org/stc/SR02586LA): Installation of Freeflight Systems Radar Altimeter RA-4000 or RA-4500 System with optional FTG-410 Tone Generator. Precision Heli-Support, LLC - [STC SR00864DE](https://openairdocs.org/stc/SR00864DE): Installation of Concorde Battery Corporation 24 Ah VRLA Main Battery. Concorde Battery Corporation - [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC - [STC SR02493SE](https://openairdocs.org/stc/SR02493SE): Installation of a cargo hook. Mechanical Specialties LLC - [STC SR02470AK](https://openairdocs.org/stc/SR02470AK): Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System. ADS-B Technologies, LLC - [STC SR02471AK](https://openairdocs.org/stc/SR02471AK): Installation of the L-3 Communications NGT -9000/9000R ADS-B System. ADS-B Technologies, LLC - [STC SH4909NM](https://openairdocs.org/stc/SH4909NM): Replace the aft engine compartment heat blanket with a stainless steel firewall. Cascade STC LLC - [STC SR01635SE](https://openairdocs.org/stc/SR01635SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC - [STC SR00877SE](https://openairdocs.org/stc/SR00877SE): Installation of an engine inlet air filtration system. Aerometals - [STC SR02310SE](https://openairdocs.org/stc/SR02310SE): Internal structural provision. Brim Aviation - [STC SR09640RC](https://openairdocs.org/stc/SR09640RC): Installation of Night Vision Goggle (NVG) Compatible Lighting System. Aero Dynamix Inc - [STC SH1383SO](https://openairdocs.org/stc/SH1383SO): Manufacture of Nightscanner searchlight kit. Bell Helicopter Textron Inc - [STC SR02255SE](https://openairdocs.org/stc/SR02255SE): Installation of external cargo racks. Brim Aviation - [STC SH7404SW](https://openairdocs.org/stc/SH7404SW): Installation of a crew door window. Bell Helicopter Textron Inc - [STC SR01960LA](https://openairdocs.org/stc/SR01960LA): Installation of removable seat pans. Aerometals - [STC SR00088AT](https://openairdocs.org/stc/SR00088AT): Installation of replacement windshield and windows. Bell Helicopter Textron Inc - [STC SH207WE](https://openairdocs.org/stc/SH207WE): Installation of range extension fuel tank in cargo area. ROBERTSON FUEL SYSTEMS LLC - [STC SR02232LA](https://openairdocs.org/stc/SR02232LA): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin AT Inc - [STC SR02011SE](https://openairdocs.org/stc/SR02011SE): Fabrication of Aerometals, LLC, Transmission Oil Seals in accordance with Master Drawing List Aero-MDL-004, dated November 9, 2009, or later FAA-approved revision; and installation in accordance with the corresponding Aerometals Installation Instructions, as referenced on the continuation page. Aerometals - [STC SR02043SE](https://openairdocs.org/stc/SR02043SE): Fabrication of Aerometals, LLC, Transmission Oil Seals in accordance with Master Drawing List Aero-MDL-004, dated November 9, 2009, or later FAA-approved revision; and installation in accordance with the corresponding Aerometals Installation Instructions, as referenced on the continuation page. Aerometals - [STC SR02062SE](https://openairdocs.org/stc/SR02062SE): Fabrication of a replacement Aerometals Heater Control Valve Assembly in accordance with Aerometals Master Drawing List No. Aero-MDL-007, Revision A, dated February 17, 2010, or later FAA-approved revision; and installation of this assembly in accordance with Aerometals Installation Instructions No. Aero-Inst-008, Revision NC, dated March 27, 2009, or later FAA-accepted revision. Aerometals - [STC SR01996SE](https://openairdocs.org/stc/SR01996SE): Fabrication and installation of an oil tank filler cap assembly in the above model rotor craft. Aerometals - [STC SR02007SE](https://openairdocs.org/stc/SR02007SE): Installation of a Brim Aviation cargo rack in accordance with McClenahan Engineering Master Drawing List and Installation Instructions number DM0916-3, revision IR, dated April 21, 2009, or later FAA-approved revision. This modification must be maintained in accordance with Brim Aviation Instructions for Continued Airworthiness number DM0916-9, revision N/C, dated June 17, 2009, or later FAA-accepted revision. Brim Aviation - [STC SR02008SE](https://openairdocs.org/stc/SR02008SE): Installation of a Tech Tools 369/500 bubble window in accordance with Brim Aviation Master Drawing List number BR600-010, revision NC, dated June 1, 2009, or later FAA-approved revision. This modification must be maintained in accordance with Brim Aviation Instructions for Continued Airworthiness number BR600-008, revision N/C, dated June 17, 2009, or later FAA-accepted revision. Brim Aviation - [STC SR02009SE](https://openairdocs.org/stc/SR02009SE): Installation of Brim Aviation tundra pads in accordance with McClenahan Engineering Master Drawing List and Installation Instructions number DM0916-3, revision IR, dated April 21, 2009, or later FAA-approved revision. This modification must be maintained in accordance with Brim Aviation Instructions for Continued Airworthiness number DM0916-8, revision N/C, dated June 17, 2009, or later FAA-accepted revision. Brim Aviation - [STC SR01924LA](https://openairdocs.org/stc/SR01924LA): Installation of a Platinum Aviation cockpit pedestal slant panel. Integrated Flight Systems All 71: https://openairdocs.org/model/md-helicopters-600n/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Mcdonnell Douglas Helicopter 600N](https://openairdocs.org/model/mcdonnell-douglas-helicopter-600n): 14 registered aircraft, registry code 3027377 --- 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.