# Mcdonnell Douglas Helicopter 600N

- Type: Aircraft model (FAA registry)
- Registry code: 3027377
- Manufacturer (registry): MCDONNELL DOUGLAS HELICOPTER
- Model: 600N
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Turbo-shaft
- Seats: 6
- 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: 14
- Page: https://openairdocs.org/model/mcdonnell-douglas-helicopter-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 (14)

- [N3500X](https://openairdocs.org/aircraft/N3500X): [Helicopter Flight Services LLC](https://openairdocs.org/faa-owner/HELICOPTER%20FLIGHT%20SERVICES%20LLC), [Groton, SD](https://openairdocs.org/faa-place/SD/Groton), built 2000, S/N RN047
- [N375SD](https://openairdocs.org/aircraft/N375SD): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), S/N RN010
- [N39GA](https://openairdocs.org/aircraft/N39GA): [Crosswind Leasing LLC](https://openairdocs.org/faa-owner/CROSSWIND%20LEASING%20LLC), [Prescott, AZ](https://openairdocs.org/faa-place/AZ/Prescott), built 1998, S/N RN039
- [N416M](https://openairdocs.org/aircraft/N416M): [Mountain Ridge Helicopters LLC](https://openairdocs.org/faa-owner/MOUNTAIN%20RIDGE%20HELICOPTERS%20LLC), [Murray, UT](https://openairdocs.org/faa-place/UT/Murray), built 1998, S/N RN043
- [N507CC](https://openairdocs.org/aircraft/N507CC): [Rotorworks LLC](https://openairdocs.org/faa-owner/ROTORWORKS%20LLC), [Hiram, GA](https://openairdocs.org/faa-place/GA/Hiram), built 1997, S/N RN007
- [N511VA](https://openairdocs.org/aircraft/N511VA): [Ab Monterrey Aircraft LLC](https://openairdocs.org/faa-owner/AB%20MONTERREY%20AIRCRAFT%20LLC), [Newark, DE](https://openairdocs.org/faa-place/DE/Newark), S/N RN023
- [N600ES](https://openairdocs.org/aircraft/N600ES): [Iron Horse Aviation LLC](https://openairdocs.org/faa-owner/IRON%20HORSE%20AVIATION%20LLC), [Newton, IA](https://openairdocs.org/faa-place/IA/Newton), S/N RN030
- [N609RP](https://openairdocs.org/aircraft/N609RP): [Ronald A Peterson Inc DBA](https://openairdocs.org/faa-owner/RONALD%20A%20PETERSON%20INC%20DBA), [Orlando, FL](https://openairdocs.org/faa-place/FL/Orlando), built 1997, S/N RN009
- [N60BK](https://openairdocs.org/aircraft/N60BK): [Brim Equipment Leasing LLC](https://openairdocs.org/faa-owner/BRIM%20EQUIPMENT%20LEASING%20LLC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 1998, S/N RN028
- [N630AG](https://openairdocs.org/aircraft/N630AG): [Lafayette Aircraft Leasing LLC](https://openairdocs.org/faa-owner/LAFAYETTE%20AIRCRAFT%20LEASING%20LLC), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 1997, S/N RN015
- [N641LB](https://openairdocs.org/aircraft/N641LB): [Gr (Uk) Inc Trustee](https://openairdocs.org/faa-owner/GR%20(UK)%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1998, S/N RN041
- [N70JR](https://openairdocs.org/aircraft/N70JR): [Aircraft Securities LLC](https://openairdocs.org/faa-owner/AIRCRAFT%20SECURITIES%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1997, S/N RN014
- [N810LA](https://openairdocs.org/aircraft/N810LA): [Cobra Aviation Services LLC](https://openairdocs.org/faa-owner/COBRA%20AVIATION%20SERVICES%20LLC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), S/N RN044
- [N812LH](https://openairdocs.org/aircraft/N812LH): [Brim Equipment Leasing LLC DBA](https://openairdocs.org/faa-owner/BRIM%20EQUIPMENT%20LEASING%20LLC%20DBA), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 1997, S/N RN022

## NTSB investigations (21)

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 GAA25WA129](https://openairdocs.org/ntsb/GAA25WA129), Mar 21, 2025: Mcdonnell Douglas Helicopter 600 (N511VA), Dos Ríos, Mexico, substantial damage
- [NTSB CEN24LA271](https://openairdocs.org/ntsb/CEN24LA271), Jul 16, 2024: Mcdonnell Douglas Helicopter 600N (N609RP), Eagle Lake, TX, destroyed. Probable cause: The operator’s improper installation of the fuel system, which resulted in fuel starvation, a loss of engine power, and impact with terrain.
- [NTSB CEN21LA116](https://openairdocs.org/ntsb/CEN21LA116), Jan 22, 2021: Mcdonnell Douglas Helicopter 600N (N60BK), Mankato, MN, substantial damage. Probable cause: The pilot’s loss of situational awareness while landing, resulting in an impact with power lines.
- [NTSB WPR20LA235](https://openairdocs.org/ntsb/WPR20LA235), Jul 21, 2020: Mcdonnell Douglas 600 (N208MP), Thompson Falls, MT, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB WPR20LA228](https://openairdocs.org/ntsb/WPR20LA228), Jul 20, 2020: Md Helicopter 600 (N745BW), San Andreas, CA, destroyed. Probable cause: The failure of the output shaft of the overrunning clutch inner race due to frictional overheating of the shaft, which resulted from the failure of the output bearing’s stainless-steel grease seal.
- [NTSB ERA18FA122](https://openairdocs.org/ntsb/ERA18FA122), Apr 8, 2018: MD Helicopter 600 (N602BP), Smethport, PA, destroyed, 2 fatal. Probable cause: The helicopter pilot's failure to maintain adequate clearance during power line construction work, which resulted in the helicopter's main rotor striking and becoming entangled with a wire and a…
- [NTSB CEN17WA102](https://openairdocs.org/ntsb/CEN17WA102), Feb 7, 2017: MD Helicopter 600 (N245SE), Guatemala City, Guatemala, substantial damage, 4 fatal
- [NTSB WPR16LA081](https://openairdocs.org/ntsb/WPR16LA081), Feb 5, 2016: Mcdonnell Douglas Helicopter 600N (N745BW), Ashland, OR, substantial damage. Probable cause: Fatigue cracking of a main rotor blade for reasons that could not be determined based on the available information.
- [NTSB CEN16LA058](https://openairdocs.org/ntsb/CEN16LA058), Dec 7, 2015: Mcdonnell Douglas Helicopter 600N (N607BP), Angleton, TX, substantial damage. Probable cause: A loss of control while hovering for reasons that could not be determined, because postaccident examination revealed no mechanical anomalies or failures that would have precluded normal operation.
- [NTSB WPR14LA173](https://openairdocs.org/ntsb/WPR14LA173), Apr 27, 2014: Mcdonnell Douglas Helicopter 600N (N606BP), Adelanto, CA, substantial damage. Probable cause: The commercial pilot’s improper control inputs, which resulted in a loss of helicopter control during takeoff.
- [NTSB ANC12FA084](https://openairdocs.org/ntsb/ANC12FA084), Aug 8, 2012: Mcdonnell Douglas Helicopter 600N (N737TV), Delta Junction, AK, substantial damage, 1 fatal. Probable cause: The pilot’s failure to clear the left landing gear skid, which resulted in the entanglement of the left landing gear skid with a log, and his subsequent application of collective pitch, which…
- [NTSB WPR09GA119](https://openairdocs.org/ntsb/WPR09GA119), Feb 20, 2009: Mcdonnell Douglas Helicopter 600 (N608BP), San Clemente, CA, substantial damage. Probable cause: Failure of the engine’s number two bearing during cruise flight, which resulted in a loss of engine power.
- [NTSB LAX03GA001](https://openairdocs.org/ntsb/LAX03GA001), Oct 4, 2002: McDonnell Douglas 600N (N625SB), Rialto, CA, substantial damage. Probable cause: an engine deceleration event due to a loose HMU fuel line fitting, which was a result of inadequate maintenance procedures in the 100/300-hour inspection. Also causal was the flying pilot's and…
- [NTSB ATL02LA095](https://openairdocs.org/ntsb/ATL02LA095), May 10, 2002: McDonnell Douglas MD-600N (N810LA), Deland, FL, substantial damage. Probable cause: The pilot's failure to follow the FADEC malfunction checklist that resulted in the loss of rotor RPM, and the pilot's improper use of the flight controls during the precautionary landing that…
- [NTSB LAX02IA013](https://openairdocs.org/ntsb/LAX02IA013), Oct 23, 2001: McDonnell Douglas 600N (N959SD), Long Beach, CA, incident, no damage. Probable cause: The fatigue failure of a 5/16-inch boom attach bolt was most probably caused by the angular misalignment between the tail boom bolt hole and the fuselage mounted nutplate.
- [NTSB LAX01TA092](https://openairdocs.org/ntsb/LAX01TA092), Feb 21, 2001: McDonnell Douglas 600N (N606BP), San Diego, CA, substantial damage. Probable cause: The student pilot's improper use of the rotorcraft flight controls, and the instructor pilot's inadequate supervision of the maneuver.
- [NTSB MIA00FA102](https://openairdocs.org/ntsb/MIA00FA102), Mar 3, 2000: McDonnell Douglas HU-600N (N611BC), Miami, FL, destroyed, 2 fatal. Probable cause: The pilot's ostentatious display and in-flight decision to perform an abrupt low altitude pitch up maneuver (aerobatic flight). This resulted in the main rotor blades colliding with and separating…
- [NTSB LAX99TA115](https://openairdocs.org/ntsb/LAX99TA115), Mar 10, 1999: McDonnell Douglas 600N (N626SB), Rialto, CA, substantial damage. Probable cause: The pilot's improper in-flight decision to maneuver in the area while observed inclement weather approached, which led to a loss of control. Contributing factors were the low ceilings, mountainous…
- [NTSB LAX98LA093](https://openairdocs.org/ntsb/LAX98LA093), Feb 3, 1998: Boeing MD600N (N9204D), Mesa, AZ, substantial damage. Probable cause: the attempt by flight test engineers to verify a height/velocity data point that was subsequently shown to be outside the aircraft's performance capabilities.
- [NTSB LAX97FA091](https://openairdocs.org/ntsb/LAX97FA091), Jan 18, 1997: McDonnell Douglas MD600N (N9202L), Flagstaff, AZ, destroyed. Probable cause: failure of the manufacturer to follow its directive to develop corrective measures in response to known accident data, and their failure to ensure that pertinent information (in engineering…
- [NTSB LAX96LA207](https://openairdocs.org/ntsb/LAX96LA207), May 28, 1996: McDonnell Douglas MD-600 (N600RN), Thermal, CA, destroyed. Probable cause: inadequate design of the stress limits for cyclic control of the helicopter.

## FAA accident and incident reports (23)

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.

- [Incident 20241216019039I](https://openairdocs.org/incident/20241216019039I), Dec 16, 2024: Mcdonnell Douglas Helicopter 600N (N812LH), Richardson, TX, Minor damage. The pilot departed the company hangar facility located at the mesquite, TX airport. While enroute to the planned 133 work location west of denton, TX. At low…
- [Incident 20240827014029I](https://openairdocs.org/incident/20240827014029I), Aug 27, 2024: Mcdonnell Douglas Helicopter 600N (N812LH), Missoula, MT, Minor damage. Description of the deviation: 0830 Am, normal start to the day. Foreman laid out plan to pilot before take-off, which was to pick up and move 2 linemen off of…
- [Accident 20240715008799A](https://openairdocs.org/incident/20240715008799A), Jul 15, 2024: Mcdonnell Douglas Helicopter 600N (N609RP), Eagle Lake, TX, Substantial damage. While conducting aerial gunnery operations the aircraft involved in the accident suffered engine power loss resulting in a crash which injured all 6 people on…
- [Accident 20210122000119A](https://openairdocs.org/incident/20210122000119A), Jan 22, 2021: Mcdonnell Douglas Helicopter 600N (N60BK), Lake Crystal, MN, Substantial damage. 01-22-2021 N60BK, MD600N. Pilot (PIC) obtained aviation weather from foreflight before departing mankato MN (kmkt) airport in the morning enroute to the field…
- [Accident 20200721011279A](https://openairdocs.org/incident/20200721011279A), Jul 21, 2020: Mcdonnell Douglas Helicopter 600N (N208MP), Thompson Falls, MT, Substantial damage. The pilot had just finished an external load operation and was in the process of landing when the helicopter expieance a loss of power. When the pilot noticed…
- [Accident 20200720011699A](https://openairdocs.org/incident/20200720011699A), Jul 20, 2020: Mcdonnell Douglas Helicopter 600N (N745BW), San Andreas, CA, Destroyed. Helicopter hovering over checking a transmission wire ? Pilot in left seat and lineman in right and rear airspeed 15 mph 250 feet above the ground. Fire…
- [Accident 20180408000149A](https://openairdocs.org/incident/20180408000149A), Apr 8, 2018: Mcdonnell Douglas Helicopter 600N (N602BP), Smethport, PA, Destroyed, 2 fatal. On April 8, 2018, at approximately 6:03 pm EDT, a macdonald Douglas helicopter MD600N, N602BP, operated by high line helicopters, LLC, was destroyed when it…
- [Incident 20170616013339I](https://openairdocs.org/incident/20170616013339I), Jun 16, 2017: Mcdonnell Douglas Helicopter 600N (N602BP), Blacksburg, VA, Minor damage. A/c made a precautionary landing in field after the windshield shattered.
- [Accident 20160215001699A](https://openairdocs.org/incident/20160215001699A), Feb 15, 2016: Mcdonnell Douglas Helicopter 600N (N745BW), Ashland, OR, No damage. The pilot noticed an abnormal vibration in the aircraft. On landing an examination of the main rotor blade revealed a 4.5 inch crack measured from the trailing…
- [Accident 20151207019609A](https://openairdocs.org/incident/20151207019609A), Dec 7, 2015: Mcdonnell Douglas Helicopter 600N (N607BP), Richwood, TX, Substantial damage. The pilots stated that the aircraft had just transitioned from forward flight into a 50 foot hover. The aircraft rapidly pitched nose down. The pilot corrected…
- [Accident 20140427008539A](https://openairdocs.org/incident/20140427008539A), Apr 27, 2014: Mcdonnell Douglas Helicopter 600N (N606BP), Adelanto, CA, Destroyed. The helicopter exhibited the signs of loss of anti-torque control.
- [Accident 20120807018289A](https://openairdocs.org/incident/20120807018289A), Aug 7, 2012: Mcdonnell Douglas Helicopter 600N (N737TV), Delta Junction, AK, Destroyed, 1 fatal. Pilot landed to a pad constructed of logs with large spacing. The initial landing was too long on the pad and the pilot attempted to move rearward. The tundra…
- [Accident 20090219009919A](https://openairdocs.org/incident/20090219009919A), Feb 19, 2009: Doug 600N (N608BP), San Clemente, CA, Substantial damage. (-23) This helicopter departed long beach daugherty field (klgb) at approximately 1900 local time en route to san diego brown field (ksdm). About 30 minutes…
- [Accident 20021003028219A](https://openairdocs.org/incident/20021003028219A), Oct 3, 2002: Doug 600N (N625SB), Rialto, CA, Destroyed. (.19) On October 3, 2002, at 1715 pacific daylight time, a Mcdonnell Douglas 600N, N625SB, experienced a loss of engine power and crashed after departure from…
- [Incident 20020924033009I](https://openairdocs.org/incident/20020924033009I), Sep 24, 2002: Doug 600N (N606BP), Tecate, CA, Minor damage. (-23) Pic/border patrol agent jonathan chad stevens was piloting a border patrol helicopter, assisting border patrol agents on the ground, who were attempting…
- [Accident 20020510014349A](https://openairdocs.org/incident/20020510014349A), May 10, 2002: Doug 600N (N810LA), Deland, FL, No damage. (-23) On may 10, 2002, at approximately 11:00 local, an MD HU-600N helicopter N810LA piloted by greg arnette encountered the following: during the approach…
- [Incident 20010529024449I](https://openairdocs.org/incident/20010529024449I), May 29, 2001: Doug 600N (N654S), Carson City, NV, Minor damage. (-23) The owner and non-rated pilot was making a right turn to final approach at Carson City, NV airport and in that right turn he used full right pedal and…
- [Accident 20010221003359A](https://openairdocs.org/incident/20010221003359A), Feb 21, 2001: Doug 600N (N606BP), San Diego, CA, Substantial damage. On February 21, 2001, at approx. 1113 local time, a Mcdonnell Douglas 600N (helicopter), N606BP, operated by us border patrol severed it's tail boom during…
- [Accident 20000303012769A](https://openairdocs.org/incident/20000303012769A), Mar 3, 2000: Doug 600N (N611BC), Miami, FL, No damage, 2 fatal. (-23)No narrative
- [Accident 19990309002109A](https://openairdocs.org/incident/19990309002109A), Mar 9, 1999: Doug 600N (N626SB), Rialto, CA, Substantial damage. San bernadino county sheriff's department public use 1997 MD-600N helicopter crashed under unknown circumstances in the san bernadino mountains near lake…
- [Accident 19980203006229A](https://openairdocs.org/incident/19980203006229A), Feb 3, 1998: Doug 600N (N9204D), Mesa, AZ, Substantial damage. Proto type flight test. Velocity and height test. Damaged on hard landing other same test similiar damage. (.4) while in the process of verifying a…
- [Incident 19971206037479I](https://openairdocs.org/incident/19971206037479I), Dec 6, 1997: Doug 600N (N605AS), Mesa, AZ, Minor damage. Narrative: during post flight inspection following emergency procedures training with Mr. Keith yamamoto from airstar helicopters, damage to the tailboom was…
- [Accident 19960528011679A](https://openairdocs.org/incident/19960528011679A), May 28, 1996: Ayres 600S2C (N600RN), Thermal, CA, Destroyed. During reverse cyclic flight test main rotor severed tailboom. Autorotated. Landed in brush. Exhaust caused fire.

## 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/mcdonnell-douglas-helicopter-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/mcdonnell-douglas-helicopter-600n/stcs.md

## PMA parts (OpenAirDocs) (759, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first.

- [PTA369D27502-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172189254920261008195107.0001): Foot Pedal. PT Aerospace LLC · PMA PQ05337NM · Replaces 369D27502-6 · Sep 28, 2026
- [PTA369D27502-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112106115420261008195107.0001): Foot Pedal. PT Aerospace LLC · PMA PQ05337NM · Replaces 369D27502-5 · Sep 28, 2026
- [PTA369H7032](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198880634220260618165644.0001): Cap Ring. PT Aerospace LLC · PMA PQ05337NM · Replaces 369H7032 · May 29, 2026
- [PTA369H7031](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128542753020260618165643.0001): Cap Ring. PT Aerospace LLC · PMA PQ05337NM · Replaces 369H7031 · May 29, 2026
- [AP600UM02-11](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180254682420260508190532.0001): Aft Plate. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-11 · Apr 28, 2026
- [AP600UM02-04](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179700397020260508190531.0001): Adaptor. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-04 · Apr 28, 2026
- [AP600UM02-09](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177351588220260508190531.0001): Aft Bracket. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-09 · Apr 28, 2026
- [AP600UM02-02](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158186472320260508190530.0001): Mount Bracket, Left. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-02 · Apr 28, 2026
- [AP600UM02-08](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140873988320260508190531.0001): Channel. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-08 · Apr 28, 2026
- [AP600UM02-03](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139188686020260508190530.0001): Doubler. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-03 · Apr 28, 2026
- [AP600UM02-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126961058820260508190530.0001): Mount Bracket, Right. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-01 · Apr 28, 2026
- [AP600UM02-05](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114745498620260508190531.0001): Lateral Brace. AirFilm Camera Systems · PMA PQ2334NM · Replaces AP600UM02-05 · Apr 28, 2026
- [KD651510](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136641814820250624152916.0001): Filter Replacement Kit. Donaldson Company Inc · PMA PQ2432CE · Replaces KD651510 · Jun 2, 2025
- [M2002-9](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175819960920240802183933.0001): Brush, Electrical Contact. Miraj Corporation · PMA PQ0870NE · Replaces 200SGL1009 · Jun 20, 2024
- [AAI- 150SG1070](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184047911720240320173349.0001): Friction Disc. Augusta Aero Innovations LLC · PMA PQ04441CE · Replaces 150SG1070 · Jan 31, 2024
- [N1830-1*](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170386827320240123183029.0001): NAASCO Carbon Brush. NAASCO Northeast Corp · PMA PQ0961NE · Replaces Lucas (LSI) Carbon Brushes 30300-1380… · Dec 20, 2023
- [N1830-2*](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145296719720240123183031.0001): NAASCO Carbon Brush. NAASCO Northeast Corp · PMA PQ0961NE · Replaces Lucas (LSI) Carbon Brushes 23081-1802… · Dec 20, 2023
- [TAU03323](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164396667520240221143036.0001): AV/Cabin Heat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Dec 14, 2023
- [HT500-369A3018](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153474967620230127192324.0001): Engine Firewall. Thoroughbred Aviation Maintenance, Inc. · PMA PQ00013CB · Modification part · Jan 25, 2023
- [HT301](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120973253620230127192328.0001): Cyclic Friction Release Levers. Thoroughbred Aviation Maintenance, Inc. · PMA PQ00013CB · Modification part · Jan 25, 2023
- [HT100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116660875820230127192326.0001): Seat Pan Inspection Panel. Thoroughbred Aviation Maintenance, Inc. · PMA PQ00013CB · Modification part · Jan 25, 2023
- [H5-5127-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199828503320221219222301.0001): Passenger Seat Basic, Grey. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H6554-501 · Dec 8, 2022
- [H5-5023-511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199165837020221219222319.0001): Crew Carpet. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces H5-5023-511 · Dec 8, 2022
- [CAI-8651-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198832541620221219222427.0001): Scuff Pad. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H2551-3 · Dec 8, 2022
- [H5-5800-108-GR](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198349118220221219222137.0001): AFT Ceiling Panel L/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D2696598-BSC · Dec 8, 2022
- [H5-5800-137-WH](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198286203920221219222056.0001): Conv. Panel No Rotor Brake. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D26570-5 · Dec 8, 2022
- [MD6-6200-134](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198100725120221219222144.0001): Bracket Cover R/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces MD6-6200-134 · Dec 8, 2022
- [H5-5023-505](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197492053820221219222316.0001): Crew Carpet. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D26591-505 · Dec 8, 2022
- [MD6-6200-108](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197331854720221219222139.0001): Mid Door Kick Panel R/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces MD6-6200-108 · Dec 8, 2022
- [CAI-8655](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197060529020221219222435.0001): Aft Cabin Duct. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D292475-13 · Dec 8, 2022
- [MD6-6300-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197001492620221219222204.0001): Crew Seats Upholstered. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces MD6-6300-1 · Dec 8, 2022
- [H5-3007-GR](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196789251520221219222042.0001): Lower Firewall Panel. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D296598-11 · Dec 8, 2022
- [H5-3004-WH](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196718659920221219222014.0001): Passenger Door Kick Panel L/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D26524-12 · Dec 8, 2022
- [MD6-6200-117](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196533276120221219222143.0001): Mid Ceiling Panel Center. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces MD6-6200-117 · Dec 8, 2022
- [H5-5030](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196390937920221219222218.0001): Mesh Crew Seat Bottom Frame, Black. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H6525-41 · Dec 8, 2022
- [MD6-6200-111AC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195674526520221219222100.0001): Conv. Panel No Rotor Brake. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces MD6-6200-111AC · Dec 8, 2022
- [H5-5500-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195375265620221219222352.0001): Collective Dual Control Box. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H6573-9 · Dec 8, 2022
- [H5-5000-109](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195220698520221219222506.0001): Fwd. Canted Bulkhead L/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces H5-5000-109 · Dec 8, 2022
- [H5-5023-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195129890020221219222317.0001): Crew Carpet. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D26591-505 · Dec 8, 2022
- [H5-5500-107](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195004575520221219222347.0001): Cyclic Control Cover. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H6573-51 · Dec 8, 2022
- [H5-2001-WH](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194943710620221219221822.0001): Fwd. Door Frame. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D26571-9 · Dec 8, 2022
- [H5-5500-137](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194376514820221219222333.0001): Instrument Panel L/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces H5-5500-137 · Dec 8, 2022
- [H5-5500-113](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193483285420221219222341.0001): Instrument Panel Top. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces H5-5500-113 · Dec 8, 2022
- [H5-5127-4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193417848620221219222300.0001): Individual Passenger Seat Basic. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H6554-BSC · Dec 8, 2022
- [CAI-8625](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193397785320221219222401.0001): Fuel Vent Faring. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369A8128 · Dec 8, 2022
- [CAI-8664](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192953794820221219222442.0001): Elbow Duct. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H92478-71 · Dec 8, 2022
- [H5-5500-107](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192894338520221219222349.0001): Cyclic Control Cover. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369H6573-51 · Dec 8, 2022
- [H5-5000-124](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192838401320221219222500.0001): Transitional Panel R/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces H5-5000-124 · Dec 8, 2022
- [H5-5123-505](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192772035020221219222327.0001): Passenger Carpet. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces 369D26574-505 · Dec 8, 2022
- [MD6-6200-102](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192264133120221219222017.0001): Passenger Door Kick Panel R/H. CUSTOM AIRCRAFT INTERIORS · PMA PQ1890NM · Replaces MD6-6200-102 · Dec 8, 2022

All of them: https://openairdocs.org/model/mcdonnell-douglas-helicopter-600n/pma.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [MD Helicopters 600N](https://openairdocs.org/model/md-helicopters-600n): 12 registered aircraft, registry code 3030003

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