# Mcdonnell Douglas Mdhs 369E - Type: Aircraft model (FAA registry) - Registry code: 3030019 - Manufacturer (registry): MCDONNELL DOUGLAS MDHS - Model: 369E - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 2 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (OpenAirDocs) - Holder: MD Helicopters LLC - Registered aircraft: 1 - Page: https://openairdocs.org/model/mcdonnell-douglas-mdhs-369e 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 2026-21-05](https://openairdocs.org/ad/2026-21-05): Engine/transmission coupling · MD Helicopters 369D, 369E, 369F and 3 more. Effective Nov 27, 2026 - [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 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [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 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 2016-05-09](https://openairdocs.org/ad/2016-05-09): Fuel Quantity Indicating System · MD Helicopters 369A, 369D, 369E and 7 more. Effective Apr 15, 2016 - [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 2013-19-24](https://openairdocs.org/ad/2013-19-24): Tail Rotor Blades · MD Helicopters 369A, 369D, 369E and 6 more. Effective Dec 5, 2013 - [AD 2013-05-16](https://openairdocs.org/ad/2013-05-16): Tailboom assembly · MD Helicopters 369D, 369E, 369F and 1 more. Effective Apr 30, 2013 - [AD 2008-15-03](https://openairdocs.org/ad/2008-15-03): Tail rotor (T/R) blade abrasion strip · MD Helicopters 369A, 369D, 369E and 6 more. Effective Sep 3, 2008 - [AD 2007-12-23](https://openairdocs.org/ad/2007-12-23): Landing gear fairing support assembly · MD Helicopters 369A, 369D, 369E and 7 more. Effective Jul 19, 2007 - [AD 2007-09-51](https://openairdocs.org/ad/2007-09-51): Tail rotor blade · MD Helicopters 369, 369A, 369D and 7 more. Effective Jul 5, 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 2002-13-05 R1](https://openairdocs.org/ad/2002-13-05-R1): Tail rotor gearbox · Aerometals tailboom, P/N 369X23500-505, 507 (STC SH5055NM or SH4801NM). Effective Feb 25, 2003 - [AD 2000-25-52](https://openairdocs.org/ad/2000-25-52): Main rotor blade · MD Helicopters 369A, 369D, 369E and 6 more. Effective Feb 6, 2001 - [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 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 99-13-09](https://openairdocs.org/ad/99-13-09): Fork Assembly Inspection · MD Helicopters 369D and 369E. Effective Aug 4, 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 98-21-12](https://openairdocs.org/ad/98-21-12): Overrunning Clutch Retainer Inspection · MD Helicopters 369D, 369E, 369FF and 1 more. Effective Oct 22, 1998 - [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 - [AD 98-09-02](https://openairdocs.org/ad/98-09-02): Overrunning Clutch Assembly Outer Race · MD Helicopters 369, 369A, 369D and 8 more. Effective May 6, 1998 - [AD 97-15-08](https://openairdocs.org/ad/97-15-08): Transmission Output Drive Gear · MD Helicopters 369D, 369E, 369F and 2 more. Effective Aug 4, 1997 - [AD 96-10-09](https://openairdocs.org/ad/96-10-09): Blade Root End Crack Inspection · MD Helicopters 369, 369A, 369D and 8 more. Effective May 29, 1996 - [AD 96-08-03](https://openairdocs.org/ad/96-08-03): Hardpoint Assemblies · Hardpoints (Flight Trails Helicopters STC SH6080NM). Effective May 20, 1996 - [AD 95-03-13](https://openairdocs.org/ad/95-03-13): Main Rotor Blade Attach Lugs · MD Helicopters 369, 369A, 369D and 7 more. Effective Mar 21, 1995 - [AD 95-03-11](https://openairdocs.org/ad/95-03-11): Tail Rotor Bade Inspection · MD Helicopters 369, 369A, 369D and 7 more. Effective Mar 1, 1995 - [AD 94-24-04](https://openairdocs.org/ad/94-24-04): Pitch Control Assembly · MD Helicopters 369D, 369E, 369F and 1 more. Effective Dec 13, 1994 - [AD 93-18-05](https://openairdocs.org/ad/93-18-05): Fuel Vent Line · MD Helicopters 369D, 369E, 369F and 2 more. Effective Dec 21, 1993 - [AD 93-07-10](https://openairdocs.org/ad/93-07-10): Airspeed Limitations · External cargo container (Gajon Associates STC SH1134EA). Effective Jul 6, 1993 - [AD 94-18-08](https://openairdocs.org/ad/94-18-08): Tail Rotor Blade Inspection · MD Helicopters 369, 369A, 369D and 7 more. Effective Jan 13, 1992 - [AD 91-08-02](https://openairdocs.org/ad/91-08-02): Tail Rotor Blades · MD Helicopters 369, 369A, 369D and 7 more. Effective May 3, 1991 - [AD 90-24-07](https://openairdocs.org/ad/90-24-07): Main Rotor Transmission Bolts · MD Helicopters 369D, 369E, 369F and 1 more. Effective Dec 10, 1990 - [AD 81-26-01 R1](https://openairdocs.org/ad/81-26-01-R1): Main Rotor Drive Shaft · MD Helicopters 369, 369A, 369D and 7 more. Effective Oct 31, 1990 - [AD 90-19-02](https://openairdocs.org/ad/90-19-02): Clutch Assembly · MD Helicopters 369, 369A, 369D and 7 more. Effective Oct 5, 1990 - [AD 89-02-01 R1](https://openairdocs.org/ad/89-02-01-R1): Main Rotor Blade Strap Assemblies · MD Helicopters 369D, 369E, 369F and 1 more. Effective Jul 19, 1990 - [AD 90-12-03](https://openairdocs.org/ad/90-12-03): Tail Rotor Bearing Assembly · MD Helicopters 369D, 369E, 369F and 1 more. Effective Jun 22, 1990 - [AD 90-01-08](https://openairdocs.org/ad/90-01-08): Driveshaft Coupling · MD Helicopters 369, 369A, 369D and 7 more. Effective Feb 5, 1990 - [AD 88-17-09 R1](https://openairdocs.org/ad/88-17-09-R1): Tail Rotor Transmission · MD Helicopters 369D, 369E, 369F and 1 more. Effective Dec 26, 1989 - [AD 89-23-14](https://openairdocs.org/ad/89-23-14): Main Rotor Collective Tubes · MD Helicopters 369, 369A, 369D and 7 more. Effective Dec 4, 1989 - [AD 89-20-02](https://openairdocs.org/ad/89-20-02): Tail Rotor Hubs · MD Helicopters 369D and 369E. Effective Oct 16, 1989 - [AD 87-18-12 R1](https://openairdocs.org/ad/87-18-12-R1): Main Rotor Transmission · MD Helicopters 369D, 369E, 369F and 1 more. Effective Jan 15, 1988 - [AD 87-18-11](https://openairdocs.org/ad/87-18-11): Main Rotor Transmission And Drive Shaft · MD Helicopters 369D, 369E, 369F and 1 more. Effective Sep 1, 1987 - [AD 86-20-07](https://openairdocs.org/ad/86-20-07): Tail Rotor Drive Shaft · MD Helicopters 369, 369A, 369D and 5 more. Effective Oct 24, 1986 - [AD 86-01-04](https://openairdocs.org/ad/86-01-04): Tail Rotor Blades · MD Helicopters 369, 369A, 369D and 7 more. Effective Feb 14, 1986 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 2003-24-01](https://openairdocs.org/ad/2003-24-01) (historical): Main rotor blade (blade) · Replacement main rotor blade (Helicopter Technology STC SR09074RC or 2 others). Effective Dec 10, 2003 - [AD 2003-08-51](https://openairdocs.org/ad/2003-08-51) (historical): Tail rotor blade pitch horn (pitch horn) · MD Helicopter 369A, 369D, 369E and 6 more. Effective Jul 17, 2003 - [AD 2002-13-05](https://openairdocs.org/ad/2002-13-05) (historical): Tail rotor gearbox · Modification of tailboom attaching hardware (Aerometals STC SH4801NM or SH5055NM). Effective Aug 1, 2002 - [AD 2000-24-51](https://openairdocs.org/ad/2000-24-51) (historical): Blade Spar · MD Helicopter 369A, 369D, 369E and 6 more All 62: https://openairdocs.org/model/mcdonnell-douglas-mdhs-369e/ads.md ## Information bulletins (advisory) (3) - [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 ## Registered aircraft (1) - [N500SL](https://openairdocs.org/aircraft/N500SL): [Patriot Marine LLC](https://openairdocs.org/faa-owner/PATRIOT%20MARINE%20LLC), [New Haven, CT](https://openairdocs.org/faa-place/CT/New%20Haven), built 1988, S/N 0309E ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (230, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2026FA0000472](https://openairdocs.org/sdr/2026FA0000472), May 28, 2026: LOCK NUT. FAILED. MS20143 NUTS ARE UTILIZED TO SECURE WITHIN THE ENGINE ASSEMBLY THE FOLLOWING ARTICLES COMPRESSOR, TURBINE, FUEL CONTROL, GOVERNOR, FUEL PUMP, TACH GENERATORS, G - [SDR 2026FA0000467](https://openairdocs.org/sdr/2026FA0000467), May 28, 2026: WINDOW. CRACKED. PILOT REPORTED BIRD STRIKE TO LOWER LEFT-HAND WINDOW. MAINTENANCE FOUND CRACK DAMAGE REQUIRING REPLACEMENT OF WINDOW. - [SDR 2026FA0000248](https://openairdocs.org/sdr/2026FA0000248), Mar 31, 2026: BLADE. DENTED. AT LANDING PILOT REPORTED MAIN BLADE CONTACT WITH TREE BRANCHES WITH NO CHANGE IN RPM. MECHANIC DETERMINED PER MDHI CSP HMI-2 THAT THERE WAS NO SUDDEN STOPAGE D - [SDR 2026FA0000161](https://openairdocs.org/sdr/2026FA0000161), Mar 5, 2026: TRANSMISSION. MAKING METAL. PILOT REPORTED INTERMITTENT MAIN GEARBOX CHIP LIGHT DURING APPROACH TO LANDING. MAGNETIC PLUG INSPECTION REVEALED METAL CONTAMINATION BEYOND ACCEPTABLE LIMITS A - [SDR DCGA202509100629](https://openairdocs.org/sdr/DCGA202509100629), Sep 8, 2025: BLADE. DENTED. DURING A POST FLIGHT MAINTENANCE INSPECTION A SMALL DENT WAS DISCOVERED ON THE OUTBOARD FACE OF ONE OF THE AIRCRAFT TAIL ROTOR BLADES. PILOT REPORTED THERE WAS - [SDR 2024FA0000959](https://openairdocs.org/sdr/2024FA0000959), Dec 12, 2024: ENGINE. MAKING METAL. PILOT EXPERIENCED AN ENGINE CHIP LIGHT DURING LANDING. ENGINE REMOVED FROM AIRCRAFT FOR FURTHER INVESTIGATION. - [SDR 2024FA0000958](https://openairdocs.org/sdr/2024FA0000958), Dec 11, 2024: ENGINE. MAKING METAL. PILOT EXPERIENCED AN ENGINE CHIP INDICATION DURING APPROACH. MAINTENANCE PERFORMED CLEANING AND GROUND RUNS AND RETURNED TO SERVICE. - [SDR 2024FA0000554](https://openairdocs.org/sdr/2024FA0000554), Jul 28, 2024: CLUTCH. MAKING METAL. DURING A SCHEDULED 100 HOUR MAINTENANCE INSPECTION ON THE AIRCRAFT. THE MECHANIC QUESTIONED THE DARK BURNT APPEARANCE OF THE GREASE IN THE • BEARING, OVERRUNNIN - [SDR 2024FA0000495](https://openairdocs.org/sdr/2024FA0000495), Jul 9, 2024: CLUTCH. MAKING METAL. DURING AIRCRAFT INSPECTION AN AIRCRAFT MECHANIC QUESTIONED DISCOLORING OF THE OVERRUNNING CLUTCH OUTPUT BEARING GREASE. THE BEARING DID NOT DEMONSTRATE ANY ABNO - [SDR 2024FA0000203](https://openairdocs.org/sdr/2024FA0000203), Mar 6, 2024: ENGINE. MAKING METAL. PILOT REPORTED AN ENGINE CHIP LIGHT ILLUMINATION AND PERFORMED AN UNSCEDULED LANDING. A MECHANIC WAS SENT TO THE AIRCRAFT AND DISCOVERED METAL ON THE UPPER ENGI - [SDR 2023FA122200001](https://openairdocs.org/sdr/2023FA122200001), Dec 19, 2023: TRANSMISSION. INSTALLED. DURING A 135 TOUR OPERATION EXPERIENCED A MAIN ROTOR TRANSMISSION CHIP LIGHT RESULTING IN A PRECAUTIONARY LANDING. ANOTHER HELICOPTER WAS BROUGHT IN WITH MAINTE - [SDR 2023FA0000497](https://openairdocs.org/sdr/2023FA0000497), Aug 28, 2023: ENGINE. ABNORMAL. UDRING STRAIGHT AND LEVEL FLIGHT THE PILOT REPORTED LOW ENGINE TORQUE. THE PILOT SELECTED A LANDING SPOT AND PERFORMED AN UNEVENTFUL PRECAUTIONARY LANDING. THE - [SDR 2023FA0000430](https://openairdocs.org/sdr/2023FA0000430), Aug 16, 2023: DOUBLER. CRACKED. DURING A POST FLIGHT INSPECTION, THE MECHANIC FOUND A CRACK ON THE AFT END OF THE RIGHT-HAND STATION 174 DOUBLER CONNECTING THE BOOM FAIRING AND TURTLE BACK OF - [SDR 2023FA0000285](https://openairdocs.org/sdr/2023FA0000285), May 30, 2023: CONNECTOR. LOOSE. DURING FLIGHT THE PILOT NOTICED THE FUEL QUANTITY GAUGE DROPPED TO ZERO THEN THE ENGINE OIL TEMP WENT TO ZERO. THE INSTRUMENT CIRCUIT BREAKER THEN POPPED. THE P - [SDR 2022FA0000760](https://openairdocs.org/sdr/2022FA0000760), Dec 14, 2022: ENGINE. MAKING METAL. ENGINE GEARBOX CHIP LIGHT ILLUMINATED DURING APPROACH FOR LANDING. UPON INSPECTION IT WAS DETERMINED THAT THE UPPER GEARBOX MAGNETIC CHIP DETECTOR HAD ILLUMINAT - [SDR 2022FA0000677](https://openairdocs.org/sdr/2022FA0000677), Nov 8, 2022: ENGINE. MAKING METAL. PILOT GOT AN ENGINE CHIP LIGHT DURING FLIGHT AND PERFORMED A PRECAUTIONARY LANDING. MAINTENANCE FOUND EVIDENCE OF CHIPS ON THE LOWER AND UPPER ENGINE GEARBOX CH - [SDR 2022FA0000568](https://openairdocs.org/sdr/2022FA0000568), Oct 3, 2022: SPRAG CLUTCH. BROKEN. INITIAL CLUTCH WAS REMOVED FOR A DIFFERENT DISCREPANCY AND WAS FOUND TO HAVE A BAD SPRAG CLUTCH 300 HOURS AFTER OVERHAUL. NEXT CLUTCH WAS FOUND TO HAVE A BAD SP - [SDR 2021FA0000272](https://openairdocs.org/sdr/2021FA0000272), Sep 29, 2021: HUB. WORN. DURING A PREFLIGHT INSPECTION ONE OF THE MAIN ROTOR HUB DROOP STOP FOLLOWER ROLLER SHAFTS WAS FOUND PROTRUDING DOWNWARD FROM THE PLUNGER ASSEMBLY. FURTHER INSPE - [SDR 2021FA0000137](https://openairdocs.org/sdr/2021FA0000137), May 13, 2021: TURBINE WHEEL. BINDING. DURING MAINTENANCE THE MECHANICS DETERMINED THE FIRST STAGE TURBINE BLADES WERE RUBBING ON THE NOZZLE.ASSEMBLY REMOVED FROM ENGINE - [SDR 2019FA0000423](https://openairdocs.org/sdr/2019FA0000423), Dec 27, 2019: BLADE. DENTED. DURING A POST FLIGHT INSPECTION A MECHCANIC FOUND A 1/4 X 1/4 INCH DENT IN THE LEADING EDGE OF A MAIN ROTOR BLADE 42 INCHES IBOARD FROM THE TIP OF THE BLADE. - [SDR 2019FA0000338](https://openairdocs.org/sdr/2019FA0000338), Oct 14, 2019: FUEL CONTROL. LEAKING. DURING MAINTENANCE GROUND RUN CHECK OPERATIONS ENGINE FUEL WAS NOTICED COMING OUT OF THE FUEL CONTROL CASE AND LEAKING TO THE GROUND. FUEL CONTROL WAS REMOVED F - [SDR 2019FA0000291](https://openairdocs.org/sdr/2019FA0000291), Aug 29, 2019: BLADDER. LEAKING. FUEL LEAKING FROM LEFT HAND FUEL BLADDER. REPLACED BOTH LEFT AND RIGHT HAND BLADDERS. - [SDR 2019FA0000194](https://openairdocs.org/sdr/2019FA0000194), Jun 25, 2019: ENGINE. MAKING METAL. ENGINE CHIP LIGHT ILLUMINATED WHEN ENGINE WAS BROUGHT TO FLIGHT IDLE AFTER ENGINE START UP. MAINTENANCE FOUND 2 FLAKES WITHIN LIMITS ON THE UPPER CHIP PLUG.A 30 - [SDR DCGA2019FA0000153](https://openairdocs.org/sdr/DCGA2019FA0000153), May 15, 2019: ENGINE. MAKING METAL. ENGINE CHIP LIGHT DURING FLIGHT. MAINTENANCE FOUND 4 FLAKES ON UPPER AND LOWER PLUGS WITHIN PARAMETERS. PERFORMED AN OIL SYSTEM DRAIN, FLUSH AND FILTER CLEAN AN - [SDR K2DA2019052800003](https://openairdocs.org/sdr/K2DA2019052800003), Mar 19, 2019: BLEED VALVE. STICKS. DURING AN ROUTINE INSPECTION IT WAS DISCOVERED THAT THE ENGINE BLEED VALVE WAS STICKING. BLEED VALVE HAD 317.2 TSO. - [SDR 2019FA0000075](https://openairdocs.org/sdr/2019FA0000075), Mar 18, 2019: BLADE. CRACKED. THE BOTTOM SKIN OF THE MAIN ROTOR BLADE HAS A 4 1/2 INCH CRACK STATING AT THE TRAILING EDGE AND PERPENDICULAR TO SPAN 57 1/4 INCHES IN FOR BLADE TIP. - [SDR K2DA2019052800002](https://openairdocs.org/sdr/K2DA2019052800002), Feb 17, 2019: BLEED VALVE. STUCK. PILOT WAS RUNNING ENGINE ON THE GROUND AND THE COMPRESSOR STARTED STALLING. MAINTENANCE PERSONNEL DISCOVERED THE ENGINE BLEED VALVE WAS STUCK IN THE CLOSED POSI - [SDR J5XA2019FA0000031](https://openairdocs.org/sdr/J5XA2019FA0000031), Feb 5, 2019: CHIP DETECTOR. CONTAMINATED. PILOT REPORTED AN ENGINE CHIP LIGHT DURING APPROACH TO LANDING. MAINTENANCE FOUND ACCEPTABLE CHIPS ON UPPER AND LOWER PLUGS. THE PLUGS WERE CLEANED AND REINSTAL - [SDR DCGA201811200487](https://openairdocs.org/sdr/DCGA201811200487), Nov 20, 2018: CHIP DETECTOR. SHORTED. DURING A PREFLIGHT INSPECTION THE PILOT NOTICE A MAIN ROTOR GEARBOX DIMMLY ILLUMINATED CHIP LIGHT. MAINTENANNCE DISCOVERED AND INTERNAL SHORT IN THE CHIP DETECT - [SDR DCGA2018FA0000398](https://openairdocs.org/sdr/DCGA2018FA0000398), Oct 1, 2018: GEARBOX. MAKING METAL. DURING A POST MAINTENANCE OPERATIONAL CHECK FLIGHT THE MAIN ROTOR GEARBOX CHIP LIGHT ILLUMINATED. A PIECE OF METAL WAS FOUND ON THE CHIP PLUG. THE TRANSMISSION - [SDR DCGA2018071200221](https://openairdocs.org/sdr/DCGA2018071200221), Jul 12, 2018: CHIP DETECTOR. CONTAMINATED. PILOT REPORTED AND ENGINE CHIP LIGHT AND PERFORMED AN UNSCHEDULED LANDING. MAINTENANCE FOUND 1 SLIVER ON THE UPPER GEARBOX CHIP PLUG. THE PLUG WAS CLEANED AND A - [SDR 2018FA0000126](https://openairdocs.org/sdr/2018FA0000126), Apr 3, 2018: BLADDER. LEAKING. DURING 100 HOUR MAINTENANCE INSPECTION, A SMALL FUEL LEAK WAS DISCOVERED ON THE BOTTOM OF THE RIGHT FUEL BLADDER. BLADDER WAS REMOVED AND REPLACED - [SDR DCGA201801230044](https://openairdocs.org/sdr/DCGA201801230044), Jan 23, 2018: ENGINE. MAKING METAL. DURING CRUISE FLIGHT AND ENGINE CHIP LIGHT INDICATION OCCURRED. THE PILOT PERFORMED A PRECAUTIONARY LANDING. MAINTENANCE DISCOVERED METAL FLAKES ON UPPER AND LO - [SDR 2017FA0000485](https://openairdocs.org/sdr/2017FA0000485), Sep 12, 2017: BLADE. DELAMINATED. DURING A POST FLIGHT INSPECTION BY AN AIRCRAFT MECHANIC TAIL ROTOR LEADING EDGE DELAMINATION WAS FOUND. BOTH TAIL BLADES WERE REMOVED FROM THE AIRCRAFT AND REPL - [SDR 2017FA0000142](https://openairdocs.org/sdr/2017FA0000142), Mar 22, 2017: HOUSING. WORN. EXTREME PLAY FOUND BETWEEN MAIN ROTOR PITCH HOUSING AND PITCH BEARING HOUSING. THE UPPER BOLT STILL HAD TORQUE STRIP APPLIED BETWEEN NUT WASHER AND BOLT BUT WAS - [SDR 2017FA0000408](https://openairdocs.org/sdr/2017FA0000408), Jan 5, 2017: BLADE. DELAMINATED. TAIL ROTOR BLADE WAS FOUND IN A DELAMINATED STATE DURING A PREFLIGHT INSPECTION. THE ABRASION STRIP HAD DELAMINATED FROM THE LEADING EDGE OF THE BLADE. PROBABLE - [SDR 2017FA0000005](https://openairdocs.org/sdr/2017FA0000005), Jan 5, 2017: GEARBOX. EXCESS PLAY. DURING MAINTENANCE A MECHANIC DISCOVERED EXCESSIVE GEARPLAY IN THE MAIN ROTOR TRANSMISSION. THE UNIT WAS REMOVED FOR REPAIR - [SDR 2017FA0000004](https://openairdocs.org/sdr/2017FA0000004), Jan 5, 2017: BLADE. DELAMINATED. DURING PRE-FLIGHT INSPECTION FOUND TAIL ROTOR BLADE PN. 500P3100-105 SN. C774 LEADING EDGE ABRASION STRIP DELAMINATED. - [SDR 2017FA0000000](https://openairdocs.org/sdr/2017FA0000000), Jan 3, 2017: COMPRESSOR. DAMAGED. PILOT REPORTED TURBINE OUTLET TEMPERATURE INCREASE AT END OF FLIGHT. MAINTENANCE DISCOVERED COMPRESSOR BLADES DAMAGED BY UNKNOWN FOD. - [SDR 2017FA0000409](https://openairdocs.org/sdr/2017FA0000409), Dec 23, 2016: BLADE. DELAMINATED. TAIL ROTOR BLADEWAS FOUND IN A DELAMINATED STATE DURING A POST FLIGHT INSPECTION. THE ABRASION STRIP HAD DELAMINATED FROM THE LEADING EDGE OF THE BLADE. THIS BL - [SDR 2017F00012](https://openairdocs.org/sdr/2017F00012), Dec 23, 2016: ABRASION STRIP. DELAMINATED. DURING POST FLIGHT INSPECTION FOUND TAIL ROTOR BLADE LEADING EDGE ABRASION STRIP DELAMINATED. - [SDR 2016FA0000537](https://openairdocs.org/sdr/2016FA0000537), Oct 24, 2016: FUEL CONTROL. LEAKING. DURING A POST FLIGHT INSPECTION MAINTENANCE FOUND A SMALL FUEL LEAK AT THE OUT FITTING LOCATION ON THE ENGINE FUEL CONTROL UNIT. THE UNIT WAS REPLACED WITH A SE - [SDR DCGA2016071800332](https://openairdocs.org/sdr/DCGA2016071800332), Jul 16, 2016: BLADE. DELAMINATED. FOUND DELAMINATION ON MAIN ROTOR BLADE STAINLESS STEEL LEADING EDGE. - [SDR DCGA2016FA0000261](https://openairdocs.org/sdr/DCGA2016FA0000261), May 27, 2016: BLADE. DENTED. DAMAGE WAS FOUND IN AREAS A AND H ON 4 OF THE 5 MAIN ROTOR BLADE BOTTOM SKINS APPROXIMATELY 6" FROM THE BLADE TIPS. MAINTENANCE DETERMINED IAW CSP HMI-2 MM THAT - [SDR 2016FA0000182](https://openairdocs.org/sdr/2016FA0000182), Apr 18, 2016: BLADE. DELAMINATED. DURING ROUTINE MAINTENANCE APROXIMATELY 1" INBD FROM THE TIP ON THE TOP OF THE MAIN ROTOR BLADE, PN 500P2100-105, SN 907B A .5" X .5" DELAMINATION WAS FOUND ON - [SDR K2DA20160308001](https://openairdocs.org/sdr/K2DA20160308001), Mar 5, 2016: BLADE. DELAMINATED. UPON THE DAILY INSPECTION, A COIN TAP TEST WAS PERFORMED ON THE TAIL ROTOR BLADES. TAIL ROTOR BLADE, PN 500P3100-105, SN C519 WAS DISCOVERED TO BE DELAMINATED. - [SDR CA160302016](https://openairdocs.org/sdr/CA160302016), Mar 2, 2016: PRESSURE SWITCH. FAILED. (CAN) FUEL PRESSURE SWITCH, FOUND TO LEAK DURING A 300HR CAUTION LIGHT FUEL PRESSURE SWITCH TEST. UNIT WAS THEN DISASSEMBLED AND FOUND THE BLUE SILICONE COATING - [SDR 2016FA0000076](https://openairdocs.org/sdr/2016FA0000076), Feb 9, 2016: BLADE. DELAMINATED. UPON THE DAILY INSPECTION, A COIN TAP TEST WAS PERFORMED ON THE TAIL ROTOR BLADES AND BLADE WAS DISCOVERED TO BE DELAMINATED. THE DELAMINATION CONSISTS OF A 2" - [SDR K2D2016011200001](https://openairdocs.org/sdr/K2D2016011200001), Dec 31, 2015: BLADE. DELAMINATED. AFTER THE DAY`S FLIGHTS AND DURING THE DAILY INSPECTION WE FOUND, BY TAP TEST, THE L/E OF 1 OF THE TAIL ROTOR BLADES WAS DELAMINATED IN VARIOUS PLACES, VARYING - [SDR DCGA2015FA0000622](https://openairdocs.org/sdr/DCGA2015FA0000622), Dec 3, 2015: ENGINE. MAKING METAL. PILOT GOT AN INTERMITTENT ENGINE CHIP LIGHT INDICATION AFTER TAKEOFF AND RETURNED FOR LANDING. MAINTENANCE FOUND LIGHT EXTINGUISHED BUT FOUND METAL ON UPPER AND All 230: https://openairdocs.org/model/mcdonnell-douglas-mdhs-369e/reports.md ## STCs that may be installed (OpenAirDocs) (246, 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 SR01059LA](https://openairdocs.org/stc/SR01059LA): Installation of right side dual utility mount. Airfilm Camera Systems LLC - [STC SH133WE](https://openairdocs.org/stc/SH133WE): Installation of C-75 cargo rack set. Isolair Inc - [STC SH3686NM](https://openairdocs.org/stc/SH3686NM): Installation of an Isolair Model3700-110 spray tank system. (500N restricted category). Isolair Inc - [STC SR00181IB](https://openairdocs.org/stc/SR00181IB): Installation of alternate Cabin Door Latches to replace OEM door locks. Aerologic LLC - [STC SR00709AT](https://openairdocs.org/stc/SR00709AT): Installation of Starter-Generator Cooling Kit. Precision Heli-Support LLC. Lists 369 Series - [STC SR00771LA](https://openairdocs.org/stc/SR00771LA): Installation of right-side utility mount. Airfilm Camera Systems LLC - [STC SR00772LA](https://openairdocs.org/stc/SR00772LA): Installation of left-side utility mount. Airfilm Camera Systems LLC - [STC SR00862LA](https://openairdocs.org/stc/SR00862LA): Installation of aft belly utility mount. Airfilm Camera Systems LLC - [STC SR04637CH](https://openairdocs.org/stc/SR04637CH): Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel. Airwolf Aerospace LLC - [STC SR00068DE](https://openairdocs.org/stc/SR00068DE): Installation of infrared imaging system. Dart Aerospace Company - [STC SH5247NM](https://openairdocs.org/stc/SH5247NM): Installation of external pod, camera mount, and 12 volt power provision. Dart Aerospace USA Inc - [STC SR00146IB](https://openairdocs.org/stc/SR00146IB): nstallation of the Integrated Health and Usage Monitoring System (HUMS). RMCI Canada Inc - [STC SR02120SE](https://openairdocs.org/stc/SR02120SE): Installation of Garmin GTN 6XX/7XX Navigation System. Garmin International Inc - [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 SR00376DE](https://openairdocs.org/stc/SR00376DE): Installation of laser mapping system. Dart Aerospace USA Inc - [STC SR04160CH](https://openairdocs.org/stc/SR04160CH): Installation of Heli-Preheat Kit, p/n TA3089-1 for 115 volt application. HARTZELL PROPELLER INC - [STC SR00043LA](https://openairdocs.org/stc/SR00043LA): Installation of clip on Main Rotor Swashplate. Pac West Helicopters Inc - [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR01778SE](https://openairdocs.org/stc/SR01778SE): Installation of Onboard Systems International Cargo Hook Kits and Load Weigh Kit. Onboard Systems International LLC - [STC SH2263NM](https://openairdocs.org/stc/SH2263NM): Installation of a fore-and-aft medical evacuation litter(s) kit. MD Helicopters LLC - [STC SR00902DE](https://openairdocs.org/stc/SR00902DE): Installation of External Equipment Mounts for provisions. MD Helicopters Inc - [STC SR04680NY](https://openairdocs.org/stc/SR04680NY): Installation of Human External Cargo (HEC) Long-Line Kit. Boost Human External Cargo Systems Inc - [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. Lists 369 Series - [STC SR00829AT](https://openairdocs.org/stc/SR00829AT): Installation of front extended cabin step. Thoroughbred Aviation Maintenance Inc. Lists 369 Series - [STC SR01839AT](https://openairdocs.org/stc/SR01839AT): Installation of cyclic friction levers. Thoroughbred Aviation Maintenance Inc - [STC SR02859AT](https://openairdocs.org/stc/SR02859AT): Installation of Part Number 369HT21004 main rotor hub fairing as a direct replacement for OEM Part Number 369D21004-11 (BSC). Thoroughbred Aviation Maintenance Inc - [STC SR03265AT](https://openairdocs.org/stc/SR03265AT): Modification of engine gearbox breather system by the installation of Heli-Tech "HT800-Engine Gearbox Breather Kit", P/N HT800. Thoroughbred Aviation Maintenance Inc - [STC SR04175AT](https://openairdocs.org/stc/SR04175AT): Installation of the HT400 Inspection Panel Kit. 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 SR00407SE](https://openairdocs.org/stc/SR00407SE): Fabrication of Onboard Systems Model 200-187-00 cargo hook kit. Onboard Systems International LLC - [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 SR02713SE](https://openairdocs.org/stc/SR02713SE): Manufacture and Installation of Human External Cargo (HEC) Hook System. Mechanical Specialties Inc - [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 SR04539NY](https://openairdocs.org/stc/SR04539NY): Installation of the Human External Cargo (HEC) System. Boost Human External Cargo Systems Inc - [STC SR02622SE](https://openairdocs.org/stc/SR02622SE): Installation of Garmin G500H TXi Display System (Primary Flight Display (PDF), Multi-Function Display (MFD)). Garmin International Inc - [STC SH4655NM](https://openairdocs.org/stc/SH4655NM): Installation of Soloy 375-1000 series auxiliary fuel system. Fifty-Ten-Yankee LLC - [STC SR02712LA](https://openairdocs.org/stc/SR02712LA): Installation of Torque Indicating Systems. Precision Heli-Support LLC - [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 SH656GL](https://openairdocs.org/stc/SH656GL): Installation of auxiliary fuel system. Fargo Manufacturing Co - [STC SH698GL](https://openairdocs.org/stc/SH698GL): Installation of belly-mounted cargo carrier. Fargo Manufacturing Co - [STC SH907GL](https://openairdocs.org/stc/SH907GL): Installation of a starter generator cooling system. Fargo Manufacturing Co - [STC SH908GL](https://openairdocs.org/stc/SH908GL): Installation of air conditioning system. Fargo Manufacturing Co All 246: https://openairdocs.org/model/mcdonnell-douglas-mdhs-369e/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Mcdonnell Douglas Helicopter 369E](https://openairdocs.org/model/mcdonnell-douglas-helicopter-369e): 83 registered aircraft, registry code 3027369 - [MD Helicopters 369E](https://openairdocs.org/model/md-helicopters-369e): 40 registered aircraft, registry code 3030008 - [Hughes Helicopters 369E](https://openairdocs.org/model/hughes-helicopters-369e): 29 registered aircraft, registry code 4470707 - [MD Helicopters 369E](https://openairdocs.org/model/md-helicopters-369e): 2 registered aircraft, registry code 3030014 --- 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.