# MD Helicopters MD 900

- Type: Aircraft model (FAA registry)
- Registry code: 3030004
- Manufacturer (registry): MD HELICOPTERS INC
- Model: MD 900
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 2 · Turbo-shaft
- Seats: 8
- Weight class: 12,500 to 19,999 lb
- Certification: Type certificated
- Data sheet: [TCDS H19NM](https://openairdocs.org/tcds/H19NM) (OpenAirDocs)
- Holder: MD Helicopters LLC
- Registered aircraft: 11
- Page: https://openairdocs.org/model/md-helicopters-md-900

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 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 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022
- [AD 2017-17-03](https://openairdocs.org/ad/2017-17-03): Main Rotor Head · MD Helicopters MD900. Effective Sep 25, 2017
- [AD 2013-20-16](https://openairdocs.org/ad/2013-20-16): Main rotor blade retention bolts · MD Helicopters MD900. Effective Dec 5, 2013
- [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51): Equipment/Furnishings · Agusta A109, A109A, A109A II and 43 more. Effective Jul 15, 2013
- [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 2012-21-01](https://openairdocs.org/ad/2012-21-01): Equipment/furnishing system wiring · MD Helicopters MD900. Effective Nov 27, 2012
- [AD 2011-22-08](https://openairdocs.org/ad/2011-22-08): Tube adapter · MD Helicopters MD900. Effective Dec 13, 2011
- [AD 2010-06-06](https://openairdocs.org/ad/2010-06-06): Life Limits for Various Parts · MD Helicopters MD900. Effective Apr 20, 2010
- [AD 2009-07-13](https://openairdocs.org/ad/2009-07-13): Gross weight limit · MD Helicopters MD900. Effective May 14, 2009
- [AD 2008-17-51](https://openairdocs.org/ad/2008-17-51): Directional control cable (control cable) · MD Helicopters MD900. Effective Aug 14, 2008
- [AD 2008-08-11](https://openairdocs.org/ad/2008-08-11): Dual-control directional pedal assemblies · MD Helicopters MD900. Effective Jun 2, 2008
- [AD 2006-18-01](https://openairdocs.org/ad/2006-18-01): Notar fan system tension-torsion (TT)  
 straps. · MD Helicopters MD900. Effective Oct 3, 2006
- [AD 2004-16-08](https://openairdocs.org/ad/2004-16-08): Fan input force limiting control rod assembly fail-safe device (fail-safe device) · MD Helicopters MD900. Effective Aug 25, 2004
- [AD 2003-14-51](https://openairdocs.org/ad/2003-14-51): Main Rotor Blade Retention Bolt · MD Helicopters MD900. Effective Aug 25, 2003
- [AD 2002-23-03](https://openairdocs.org/ad/2002-23-03): Longitudinal Drive Link and Nonrotating Swashplate Assemblies · MD Helicopters MD900. Effective Dec 26, 2002
- [AD 2002-22-51](https://openairdocs.org/ad/2002-22-51): Main rotor support static mast (mast) · MD Helicopters MD900. Effective Dec 26, 2002
- [AD 2002-15-07](https://openairdocs.org/ad/2002-15-07): Lateral mixer bellcrank assembly · MD Helicopters MD900. Effective Sep 10, 2002
- [AD 2002-10-05](https://openairdocs.org/ad/2002-10-05): Main Rotor Upper Hub (Hub) Assembly Drive Plate Attachment Flange (Flange) · MD Helicopters MD900. Effective Jun 19, 2002
- [AD 2000-18-08](https://openairdocs.org/ad/2000-18-08): Non-rotating Swashplate Assembly · MD Helicopters MD900. Effective Oct 19, 2000
- [AD 2000-10-06](https://openairdocs.org/ad/2000-10-06): Drive Shaft · MD Helicopters MD900. Effective Jun 1, 2000
- [AD 99-05-08](https://openairdocs.org/ad/99-05-08): Main Rotor Drive Shaft, Pitch Plate Assembly and Spherical/Slider Main Rotor Bearing · MD Helicopters MD900. Effective Mar 18, 1999
- [AD 98-12-30](https://openairdocs.org/ad/98-12-30): Hub Assembly · MD Helicopters MD900. Effective Feb 3, 1999
- [AD 97-12-02](https://openairdocs.org/ad/97-12-02): Link Assembly · MD Helicopters MD900. Effective Dec 2, 1997
- [AD 97-20-12](https://openairdocs.org/ad/97-20-12): Main Rotor Swashplate Bearing · MD Helicopters MD900. Effective Nov 6, 1997

Historical (superseded or no longer in force):

- [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 2014-16-01](https://openairdocs.org/ad/2014-16-01) (historical): Main Rotor Head · MD Helicopters MD900. Effective Aug 20, 2014
- [AD 2011-14-05](https://openairdocs.org/ad/2011-14-05) (historical): Main Rotor Head · MD Helicopter MD900. Effective Aug 1, 2011
- [AD 2010-18-52](https://openairdocs.org/ad/2010-18-52) (historical): Main rotor hub (hub) · MD Helicopters MD900. Effective Dec 1, 2010
- [AD 2010-18-51](https://openairdocs.org/ad/2010-18-51) (historical): Cracks in the lower main rotor hub · MD Helicopter MD900
- [AD 2008-22-53](https://openairdocs.org/ad/2008-22-53) (historical): Vertical Stabilizer Control System (VSCS) switches and turning OFF the autopilot (AP/SAS) switch · MD Helicopter MD900. Effective Dec 17, 2008
- [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 2004-23-15](https://openairdocs.org/ad/2004-23-15) (historical): Notar fan system tension- torsion (TT) straps · MD Helicopter MD900. Effective Dec 7, 2004
- [AD 2003-13-51](https://openairdocs.org/ad/2003-13-51) (historical): Main rotor blade retention bolt (bolt) · MD Helicopter MD900
- [AD 2001-07-09](https://openairdocs.org/ad/2001-07-09) (historical): Main Rotor Upper Hub Assembly · MD Helicopter MD900. Effective May 1, 2001
- [AD 99-16-13](https://openairdocs.org/ad/99-16-13) (historical): Airworthiness Limitations - Retirement Life · MD Helicopter MD900. Effective Sep 10, 1999
- [AD 99-26-20 L](https://openairdocs.org/ad/99-26-20-L) (historical): Hub assembly Drive Plate Attach Flange · MD Helicopter MD900

## Information bulletins (advisory) (1)

- [SAIB SW-08-05](https://openairdocs.org/saib/SW-08-05): MD900 Main Rotor Blade Retention Bolt Check. Issued Nov 14, 2007

## Registered aircraft (11)

- [N353KK](https://openairdocs.org/aircraft/N353KK): [Aerospace Trust Management LLC Owner Trustee](https://openairdocs.org/faa-owner/AEROSPACE%20TRUST%20MANAGEMENT%20LLC%20OWNER%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 900-00073
- [N451CJ](https://openairdocs.org/aircraft/N451CJ): [Turbines Ltd](https://openairdocs.org/faa-owner/TURBINES%20LTD), [West Point, NE](https://openairdocs.org/faa-place/NE/West%20Point), S/N 900-00077
- [N70431](https://openairdocs.org/aircraft/N70431): [Aertrust Services Corp Trustee](https://openairdocs.org/faa-owner/AERTRUST%20SERVICES%20CORP%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 900-00069
- [N881LT](https://openairdocs.org/aircraft/N881LT): [Ark Angels LLC](https://openairdocs.org/faa-owner/ARK%20ANGELS%20LLC), [Austin, TX](https://openairdocs.org/faa-place/TX/Austin), built 2006, S/N 900-00117
- [N902EA](https://openairdocs.org/aircraft/N902EA): [Kenai Aviation Inc Trustee](https://openairdocs.org/faa-owner/KENAI%20AVIATION%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2000, S/N 900-00076
- [N902GB](https://openairdocs.org/aircraft/N902GB): [Gremlin Air Inc Trustee](https://openairdocs.org/faa-owner/GREMLIN%20AIR%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2001, S/N 900-00089
- [N902JS](https://openairdocs.org/aircraft/N902JS): [Apex Heli-Support LLC](https://openairdocs.org/faa-owner/APEX%20HELI-SUPPORT%20LLC), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 2000, S/N 900-00072
- [N902LC](https://openairdocs.org/aircraft/N902LC): [Lester E Cox Medical Centers](https://openairdocs.org/faa-owner/LESTER%20E%20COX%20MEDICAL%20CENTERS), [Springfield, MO](https://openairdocs.org/faa-place/MO/Springfield), built 2007, S/N 900-00118
- [N902TX](https://openairdocs.org/aircraft/N902TX): [Burl & Bob Aircraft Leasing LLC](https://openairdocs.org/faa-owner/BURL%20%26%20BOB%20AIRCRAFT%20LEASING%20LLC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 2001, S/N 900-00092
- [N904AF](https://openairdocs.org/aircraft/N904AF): [Leopard Aviation LLC](https://openairdocs.org/faa-owner/LEOPARD%20AVIATION%20LLC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 2001, S/N 900-00101
- [N912LH](https://openairdocs.org/aircraft/N912LH): [Brim Equipment Leasing LLC](https://openairdocs.org/faa-owner/BRIM%20EQUIPMENT%20LEASING%20LLC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 2001, S/N 900-00095

## NTSB investigations (5)

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 CEN15LA066](https://openairdocs.org/ntsb/CEN15LA066), Nov 27, 2014: MD Helicopter MD 900 (N902LC), Highlandville, MO, substantial damage. Probable cause: The pilot's inability to identify the power line during the initial approach in night visual meteorological conditions and his subsequent failure to avoid the power line once he identified it on…
- [NTSB CEN09IA032](https://openairdocs.org/ntsb/CEN09IA032), Oct 19, 2008: MD Helicopter MD 900 (N902NM), Amherst, TX, incident, minor damage. Probable cause: The failure of the vertical stabilizer control adapter due to reverse bending fatigue.
- [NTSB CEN09IA003](https://openairdocs.org/ntsb/CEN09IA003), Oct 8, 2008: MD Helicopter MD 900 (N902RN), Weatherford, TX, incident, minor damage. Probable cause: The failure of the vertical stabilizer control adapter due to reverse bending fatigue.
- [NTSB LAX08IA241](https://openairdocs.org/ntsb/LAX08IA241), Jul 21, 2008: MD Helicopters MD 902 (N902CS), Salinas, CA, incident, minor damage. Probable cause: The pilot's inability to maintain directional control due to the fatigue failure of the threaded portion of the forward directional control cable as a result of the improper installation a lock…
- [NTSB ANC06LA038](https://openairdocs.org/ntsb/ANC06LA038), Mar 22, 2006: MD Helicopters MD 900 (N912LH), Mesa, AZ, substantial damage. Probable cause: The manufacturer's inadequate design clearance of the main rotor blade grip pitch cases, which resulted in damage to the pitch cases when they contacted main rotor perimeter bolts during maneuvering…

## FAA accident and incident reports (4)

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 20141126021509A](https://openairdocs.org/incident/20141126021509A), Nov 26, 2014: Md Helicopter Inc MD 900 (N902LC), Highlandville, MO, Substantial damage. This aircraft was attempting to land in an open field to pick up a passenger that was involved in a vehicle accident and transport the patient to the hospital.…
- [Incident 20081003849999I](https://openairdocs.org/incident/20081003849999I), Oct 3, 2008: Doug MD900 (N911AC), Lubbock, TX, Minor damage. (-23) On October 5, 2008, the flight crew of N911AC, was performing flight training under the part 135 certificate at Lubbock international airport. The…
- [Incident 20080208842499I](https://openairdocs.org/incident/20080208842499I), Feb 8, 2008: Doug MD900 (N902RN), Gilroy, CA, Minor damage. (-23) In a statement dated 08/03/2008, the pilot [privacy data omitted] states: after departing a rendezous landing area at 75 percent transmission torque in…
- [Accident 20060322005049A](https://openairdocs.org/incident/20060322005049A), Mar 22, 2006: Doug MD900 (N912LH), Mesa, AZ, Substantial damage. (-23) During a photo flight northeast of the Mesa ffz, with the pilot and crew chief aboard, the main rotor pitch cases were damaged by contact with the…

## Service difficulty reports (435, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR QMLA2025111620114](https://openairdocs.org/sdr/QMLA2025111620114), Nov 15, 2025: BLADE. DELAMINATED. TRIM TAB SECTION ON MRB NR 4 WAS DISCOVERED TO BE DELAMINATED ON POST FLIGHT WALK AROUND. REMOVED AND REPLACED MRB.
- [SDR QMLA2018092718104](https://openairdocs.org/sdr/QMLA2018092718104), Sep 24, 2018: BOLT. SHEARED. MR DRIVE RING BOLT FOUND TO BE SHEARED DURING ANNUAL INSPECTION OF MR HEAD AND DRIVE SYSTEM
- [SDR QMLA2018040718042](https://openairdocs.org/sdr/QMLA2018040718042), Apr 7, 2018: WARNING LIGHT. FALSE ACTIVATION. WHILE ENROUTE, THE TRANSMISSION CHIP LIGHT ILLUMINATED APPROXIMATEDLY FIFTEEN MINUTES INTO THE FLIGHT. STAYED ON FOR ABOUT 15 SECONDS BEFORE GOING OUT. CAME BAC
- [SDR 2018FA0000123](https://openairdocs.org/sdr/2018FA0000123), Apr 3, 2018: TAB. DAMAGED. A SEGMENT OF THE TRIM TAB OF A MAIN ROTOR BLADE WAS LOST DURING FLIGHT. THE TRIM TAB WAS REPAIRED 201FHRS BEFORE THIS WAS DETECTED. THE SITUATION WAS DETECTED D
- [SDR CA160121022](https://openairdocs.org/sdr/CA160121022), Jan 21, 2016: HOSE. CRACKED. (CAN) AFTER SHUT DOWN FOLLOWING A SHORT UNRELATED TEST FLIGHT, TRANSMISSION OIL WAS DISCOVERED COVERING THE TRANSMISSION DECK AND FLOWING DOWN THE SIDES OF THE 
- [SDR CA151007018](https://openairdocs.org/sdr/CA151007018), Sep 30, 2015: COMPRESSOR. LEAKING. (CAN) THE CREW OF THE HELICOPTER WAS FORCED TO MAKE AN EMERGENCY LANDING ON THE OUTSKIRTS OF PARIS DUE TO LEFT ENGINE LOW OIL PRESSURE AND SMOKE IN THE CABIN. T
- [SDR CA150901001](https://openairdocs.org/sdr/CA150901001), Aug 20, 2015: ENGINE. POWER LOSS. (CAN) DURING TAKE-OFF THE EEC WARNING LIGHT CAME ON FOR A SHORT TIME AND ENGINE NR 1 DID NOT ACCELERATE. AFTER ANOTHER TAKE-OFF ATTEMPT THE ENGINE SPOOLED DOWN 
- [SDR QMLA2015050715037](https://openairdocs.org/sdr/QMLA2015050715037), May 7, 2015: MOTOR. FAULTY. UPON DESCENT DURING FINAL APPROACH TO LANDING SITE, THE PILOT & CREW REPORTED TO EACH OTHER THE DETECTION OF AN ELEC BURNING ODOR THAT CONTINUED TO GET STRONGER
- [SDR CA141014021](https://openairdocs.org/sdr/CA141014021), Oct 12, 2014: DRIVE RING. CRACKED. (CAN) WHILE STATIC WITH BLADES UNTIED THE AIRCRAFT WAS SUBJECTED TO ROTOR WASH FROM A HEAVY HELICOPTER. A PREFLIGHT INSPECTION THE FOLLOWING DAY REVEALED THE MA
- [SDR CA141008011](https://openairdocs.org/sdr/CA141008011), Sep 21, 2014: THROTTLE. MALFUNCTIONED. (CAN) UPON LANDING, THE PILOT LOWERED THE COLLECTIVE AND 1 ENGINE BEGAN TO ACCELERATE. THE PILOT RAISED THE COLLECTIVE TO APPLY TORQUE TO REDUCE ENGINE SPEED. T
- [SDR QMLA2014051314052](https://openairdocs.org/sdr/QMLA2014051314052), May 13, 2014: BATTERY BOX. CRACKED. DURING AN ONGOING MX INSPECTION, MULTIPLE CRACKS WERE FOUND ON LOWER LT BATTERY BOX CLOSE OUT FLANGE. OBTAINED ENGINEERING SERVICE REPORT, ESR900-09201-CP1 DESC
- [SDR QMLA2014050614051](https://openairdocs.org/sdr/QMLA2014050614051), May 6, 2014: BLADE. CRACKED. DURING THE 12 MONTH AAIP INSPECTION, FOUND 7 OF 13 NOTAR BLADES WITH SMALL CRACKS COMING FROM THE DRAIN HOLE OF EACH BLADE CUFF. REPLACEMENT PARTS HAVE BEEN ORD
- [SDR CA140224011](https://openairdocs.org/sdr/CA140224011), Feb 17, 2014: CONNECTOR. CONTAMINATED. (CAN) DURING FINAL APPROACH, THE MAIN GEARBOX FIRE INDICATION AND AUDIO WARNING WERE ACTIVATED ACCOMPANIED BY A STRONG BURNING ODOR AND SMALL AMOUNT OF SMOKE IN
- [SDR QMLA2014012214010](https://openairdocs.org/sdr/QMLA2014012214010), Jan 22, 2014: TRANSMISSION. MAKING METAL. MULTIPLE MAIN TRANSMISSION CHIP LIGHTS, AFTER FOLLOWING CSP 900RMM 2 CHAPTER 63-20-00 & TABLE 601. CHIPS INDICATED ALL UNDER THE LIMITS OF THE CHAPTER BUT COME 
- [SDR STRA20131112101](https://openairdocs.org/sdr/STRA20131112101), Nov 10, 2013: DISPLAY. INOPERATIVE. DURING FLIGHT, PILOT REPORTED NR 1 AND 2 ENGINES, AND MAIN TRANSMISSION FIRE WARNING LIGHTS . AT THE SAME TIME, THE ENGINE MONITORING DISPLAY (IIDS) WENT BLANK.
- [SDR QMLA2013F00175](https://openairdocs.org/sdr/QMLA2013F00175), Aug 31, 2013: WIRE. CHAFED. NR 2 ENGINE FIRE LIGHT ILUMINATED AND FAULT RECORDED IN IIDS. FOUND FIRE LOOP WIRE SHIELDING CHAFED THROUGH NEAR THE BACK SIDE OF THE NR 2 ENGINE FIRE WALL.
- [SDR CA130822007](https://openairdocs.org/sdr/CA130822007), Aug 17, 2013: FMU. MALFUNCTIONED. (CAN) AFTER AN UNEVENTFUL CLIMB, THE CHECKS WERE NORMAL BUT LESS THAN A MINUTE LATER THE NR WAS NOTED AT 101 PERCENT SHORTLY FOLLOWED BY 102 PERCENT. THE CREW R
- [SDR CA130729002](https://openairdocs.org/sdr/CA130729002), Jul 15, 2013: ENGINE. POWER LOSS. (CAN) AFTER DROPPING A SLINGED LOAD, THE NR 2 ENGINE FROZE AT HIGH TORQUE FOR 20 SEC. THE NR 1 ENGINE REDUCED POWER ACCORDINGLY BUT THE MAIN ROTOR OVERSPED TO 1
- [SDR CA130617002](https://openairdocs.org/sdr/CA130617002), Jun 10, 2013: ENGINE. SHUTDOWN. (CAN) THE PILOT REPORTED AN ELECTRONIC ENGINE CONTROL SHUTDOWN FROM THE LT ENGINE. THE PILOT REQUESTED MORE POWER FROM RT ENGINE TO FLY OVER THE CABLES IN FRONT
- [SDR CA130508014](https://openairdocs.org/sdr/CA130508014), May 3, 2013: SCREW. MISSING. (CAN) FOD DAMAGE TO NOTAR FAN. STATOR BLADE RETAINER SCREW FOUND MISSING.
- [SDR STRA20130417101](https://openairdocs.org/sdr/STRA20130417101), Apr 16, 2013: CONTROL ROD. FAULTY. ON DAILY INSPECTION FOR COMPLIANCE OF DAILY AD 2004-16-08 FOR THE NOTAR FAN CONTROL ROD, IT WAS FOUND THAT SAFETY LANDYARDS ON THE FORCE LIMITING ASSY WERE TIGH
- [SDR CA121211003](https://openairdocs.org/sdr/CA121211003), Dec 3, 2012: COMPRESSOR. SEIZED. (CAN) CREW COMPLAINED OF POPPING NOISE WHEN GOING FROM IDLE TO FLY CONDITION. MECHANIC CONFIRMED NOISE AND COMMENCED COMPRESSOR WASHES AND RINSES. DURING THE RI
- [SDR CA121120005](https://openairdocs.org/sdr/CA121120005), Nov 10, 2012: HUB. CRACKED. (CAN) AD 2012-21-01 WAS CARRIED OUT IAW SB900-117. AN EDDY CURRENT INSPECTION WAS CARRIED OUT BY NDT AND WAS DETERMINED TO HAVE AN.1250" ANOMOLY. THE LOWER HUB 
- [SDR CA120716009](https://openairdocs.org/sdr/CA120716009), Jul 8, 2012: BLADE. FRACTURED. (CAN) AFTER TAKINGOFF FROM THE ROOF OF A HOSPITAL, DURING THE TRANSITION PHASE, THE CREW HEARD A LOUD NOISE FOLLOWED BY A POWER LOSS AND NR 1 ENGINE SHUTDOWN. T
- [SDR QMLA2012060912095](https://openairdocs.org/sdr/QMLA2012060912095), Jun 9, 2012: TRANSMISSION. MAKING METAL. CHIP LIGHT MAIN ROTOR TRANSMISSION.
- [SDR CA111125009](https://openairdocs.org/sdr/CA111125009), Nov 18, 2011: BLADE. CRACKED. (CAN) UPON DAILY INSPECTION, IT WAS DISCOVERED THAT THE OTBD L/E ABRASION STRIP WAS CRACKED BEYOND LIMITS. THE M/R BLADE WAS R & R WITH A RENTAL UNIT. THE BLADE
- [SDR CA111125008](https://openairdocs.org/sdr/CA111125008), Nov 18, 2011: BEARING. SEPARATED. (CAN) ON INSPECTION, ELASTOMERICS OF BEARING FOUND SEPARATED FROM THE CENTER MOUNT. BEARING WAS COMPLETELY UNSERVICEABLE.
- [SDR QMLA2011050911056](https://openairdocs.org/sdr/QMLA2011050911056), May 9, 2011: IMPELLER. DAMAGED. PART OF THE GASKET OF THE INLET SCREEN CAME LOOSE AND WAS INGESTED INTO THE ENGINE. ONE BLADE ON THE COMPRESSOR HAD DAMAGE THAT CAUSED A LOUD WHINING NOISE WHEN
- [SDR QMLA2010071210034](https://openairdocs.org/sdr/QMLA2010071210034), Jul 12, 2010: BLADE. DEBONDED. DURING 100 HR INSP DAMAGE LOCATED APPROX 1.25 INCHES FROM THE OTBD END OF THE BLADE TIP, ALONG THE AFT EDGE OF THE ABRASION STRIP ON THE LOWER SURFACE, AND MEAS
- [SDR 2009FA0000674](https://openairdocs.org/sdr/2009FA0000674), Aug 7, 2009: FIRE DETECTOR. FALSE INDICATION. FIRE WARNING LIGHT ILLUMINATED IN FLIGHT. THIS WAS A FALSE INDICATION GIVEN BY THE FIRE CONTROL BOX.
- [SDR 2009FA0000440](https://openairdocs.org/sdr/2009FA0000440), Jan 30, 2009: DRIVE SHAFT. CORRODED. DURING AN ANNUAL INSP THE MAIN ROTOR DRIVE SHAFT AND DRIVE PLATE WHERE REMOVED TO SATISFY THE 12 MONTH REQUIREMENT. WHILE REMOVING THE DRIVE SHAFT IT WAS FOUND 
- [SDR L19A2008102400050](https://openairdocs.org/sdr/L19A2008102400050), Oct 19, 2008: ADAPTER. BROKEN. THE HELICOPTER WAS IN CRUISE FLIGHT AND THE VSCS ADAPTER BROKE IN TWO. THIS CAUSED THE A CONTROL PROBLEM WITH THE HELICOPTER UNTIL IT SLOWED BELOW 100 KTS. THE 
- [SDR 2008FA0000557](https://openairdocs.org/sdr/2008FA0000557), Aug 1, 2008: CONTROL ROD. BROKEN. EXPERIENCED EXCESSIVE LT PEDAL (2-3 INCHES) DURING CRUISE FLIGHT AT 70 TO 80 PERCENT TRANSMISSION TORQUE. DURING POST FLIGHT FOUND THAT THE LT VERTICAL STABILIZ
- [SDR CA071016007](https://openairdocs.org/sdr/CA071016007), Sep 8, 2007: BEARING. FAILED. (CAN) THE ENGINE CHIP DETECTOR ACTIVATED, ACCOMPANIED BY VIBRATION AND A TEMPERATURE INCREASE, AND THE ENGINE WAS SHUTDOWN IN FLIGHT. SUBSEQUENT INVESTIGATION R
- [SDR DLM90070977](https://openairdocs.org/sdr/DLM90070977), Jul 31, 2007: CUSP WEB. CRACKED. LT CUSP WEB OUT OF LIMITS, CRACKED AT LIGHTEN HOLE FS 873. REPAIRED CUSP WEB IAW MD-88 SRM 53-05D FIG 827D.
- [SDR DLM90070817](https://openairdocs.org/sdr/DLM90070817), Jun 24, 2007: SKIN. DENTED. DENT NEAR STA 245 BETWEEN L-17L AND L-18L. CUT OUT DENT AND INSTALL REPAIR DOUBLER.
- [SDR DLM90070875](https://openairdocs.org/sdr/DLM90070875), Jun 21, 2007: NONE. NONE. TEMP REPAIR INSTALLED ON FUSELAGE SKIN AT RT CANT FRAME STA 1531 APPROX 16 IN UP FROM DOOR CUT OUT. REMOVED TEMP REPAIR AND INSTALLED PERM. REPAIR IAW MD90 SRM 
- [SDR DLM90070761](https://openairdocs.org/sdr/DLM90070761), Jun 19, 2007: SKIN. DENTED. UPPER FUSELAGE SKIN HAS 2 DENTS CONTAINED IN ONE BAY STA 218 LONGERON 17-18L. DEPTH = .031 BY MINOR = .75 DEPTH = .015 BY MINOR = .25 2ND DENT CLOSER THAN 1 INC
- [SDR DLM90070760](https://openairdocs.org/sdr/DLM90070760), Jun 3, 2007: ATTACH FITTING. CORRODED. RT I/B VERTICAL STAB TO HORIZONTAL ATTACH PLATE HAS CORROSION ON PLATE FACE AND BORE. REPAIRED RT I/B VERTICAL STAB TO HORIZONTAL HINGE IAW MD90 SRM 55-30-05 PA
- [SDR DLM90070196](https://openairdocs.org/sdr/DLM90070196), Mar 7, 2007: ATTACH ANGLE. CRACKED. THE RT FUSELAGE TO VERTICAL STABILIZER ATTACH ANGLE WAS FOUND WITH A CRACK NEAR THE AFT END OF THE ANGLE. THE CRACK MEASURED 1" LONG AND IS TYPICAL OF CRACKS DO
- [SDR 2006FA0000620](https://openairdocs.org/sdr/2006FA0000620), Jun 8, 2006: HOSE. CRACKED. PILOT NOTICED TRANSMISSION OIL PRESSURE INDICATION DROPPED FROM GREEN TO YELLOW TO RED. MADE UNSCHEDULED LANDING. FOUND FWD LT TRANSMISSION OIL COOLER HOSE LEAK
- [SDR 2006FA0000501](https://openairdocs.org/sdr/2006FA0000501), May 16, 2006: OIL COOLER. LEAKING. FOUND WETTING OIL MAIN TRANSMISSION/ENGINE OIL COOLER CORE. REMOVED AND SENT OUT FOR EVALUATION. COOLER FOUND TO HAVE INTERNAL CORROSION THAT CAUSED MATERIAL LO
- [SDR 2006FA0000508](https://openairdocs.org/sdr/2006FA0000508), May 16, 2006: BEAM. CRACKED. DURING SCHEDULED INSPECTION FOUND FLEXBEAM CRACKED IN LEG OF FLEXBEAM. REJECTED FLEXBEAM IAW INSPECTION CRITERIA IN MM. REPLACED WITH NEW FLEXBEAM.
- [SDR 2006FA0000507](https://openairdocs.org/sdr/2006FA0000507), May 16, 2006: BEAM. CRACKED. DURING SCHEDULED INSPECTION FOUND FLEXBEAM CRACKED IN LEG OF FLEXBEAM. REJECTED FLEXBEAM IAW INSPECTION CRITERIA IN MAINTENANCE MANUAL. REPLACED WITH NEW FLEXBE
- [SDR 2006FA0000506](https://openairdocs.org/sdr/2006FA0000506), May 16, 2006: HOSE. CRACKED. DISCOVERED MAIN TRANSMISSION OIL HOSE FROM OIL COOLER TO MAIN TRANSMISSION LEAKING FROM STEEL BRAIDING. PULLED BACK BRAIDING AND FOUND HOSE TO BE CRACKED. REPLA
- [SDR 2006FA0000503](https://openairdocs.org/sdr/2006FA0000503), May 16, 2006: HOSE. CRACKED. DISCOVERED MAIN TRANSMISSION OIL HOSE FROM OIL COOLER TO MAIN TRANSMISSION LEAKING FROM STEEL BRAIDING. PULLED BACK BRAIDING AND FOUND HOSE TO BE CRACKED. REPLA
- [SDR DLM90060376](https://openairdocs.org/sdr/DLM90060376), May 13, 2006: WIRE HARNESS. DAMAGED. RETURN TO GATE DUE TO ELECTRICAL FUMES IN CABIN.APU AND LEFT ENGINE RUNNING. MOMENTARY LOSS OF ELECTRICAL POWER WITH EMERGENCY POWER COMING ON. EMERGENCY POWER 
- [SDR DLM90060350](https://openairdocs.org/sdr/DLM90060350), May 1, 2006: HYDRAULIC SYSTEM. UNKNOWN. RIGHT SYSTEM HYDRAULIC PRESSURE LOW AFTER TAKEOFF FROM SLC. REPLACED RIGHT SYSTEM RESERVOIR SERVICED THE RIGHT HYD SYSTEM. BLEED SYSTEM PERFORMED OP AND LEAK CH
- [SDR L192006F00000](https://openairdocs.org/sdr/L192006F00000), Apr 14, 2006: LINE. WORN. ON TRAINING FLIGHT, RT ENG FIRELIGHT CAME ON. PILOT COMPLIED WITH EMERGENCY PROCEDURES, THEN SHUT RT ENG DOWN AND DISCHARGED RT ENG FIRE BOTTLE, LANDED AC AND F
- [SDR 2006FA0000274](https://openairdocs.org/sdr/2006FA0000274), Mar 1, 2006: HOSE. CRACKED. HOSE IS INSTALLED ON MD902 HELICOPTERS. MD P/N IS 900D3409526-105. HOSE IS USED FOR MAIN TRANSMISSION OIL COOLING. FOUND LARGE ACCUMULATION OF OIL ON TRANSMISSI

All 435: https://openairdocs.org/model/md-helicopters-md-900/reports.md

## STCs that may be installed (OpenAirDocs) (59, 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 SR04464NY](https://openairdocs.org/stc/SR04464NY): Installation of the iPad Mount. Avio Design Group Inc
- [STC SR09027RC](https://openairdocs.org/stc/SR09027RC): Installation of a liquid oxygen system. MD Helicopters LLC
- [STC SR00242DE-D](https://openairdocs.org/stc/SR00242DE-D): Installation of multipurpose cabin floor and seats. Air Methods LLC
- [STC SR00243DE](https://openairdocs.org/stc/SR00243DE): Installation of articulating patient litter system for use in an EMS interior. Air Methods LLC
- [STC SR00244DE](https://openairdocs.org/stc/SR00244DE): Installation of an aft equipment frame for use in an emergency medical interior. Air Methods LLC
- [STC SR00250DE-D](https://openairdocs.org/stc/SR00250DE-D): Installation of an EMS interior. Air Methods LLC
- [STC SR04347CH](https://openairdocs.org/stc/SR04347CH): Installation of Heli-Preheat Kit, P/N TA3195-1 for 115-volt application. Hartzell Propeller LLC
- [STC SR09028RC](https://openairdocs.org/stc/SR09028RC): Installation of boarding lights in accordance with Heli-Dyne drawing list HD900-00-0013, Rev. D, dated June 21, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR00134LA](https://openairdocs.org/stc/SR00134LA): Installation of Rescue Hoist Kit (600 lbs capacity). MD Helicopters LLC
- [STC SR00436WI-D](https://openairdocs.org/stc/SR00436WI-D): Installation of Bendix/King Avionics System and KFC 900 rotorcraft flight control system. MD Helicopters LLC
- [STC SR09019RC](https://openairdocs.org/stc/SR09019RC): Installation of high intensity lights in accordance with Heli-Dyne drawing list HD900-00-0001, Rev. D, dated August 28, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09020RC](https://openairdocs.org/stc/SR09020RC): Installation of EMS electric, inverter, air pump, and vacuum system in accordance with Heli-Dyne Master Drawing List HD900-00-0003, Revision D, dated June 21, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09021RC](https://openairdocs.org/stc/SR09021RC): Installation of Cabin Attendant Seats in accordance with Heli-Dyne Master Drawing List HD900-00-0004, Revision C, dated August 28, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09022RC](https://openairdocs.org/stc/SR09022RC): Installation of an aft medical cabinet in accordance with Heli-Dyne Master Drawing List HD900-00-0005, Revision IR, dated March 16, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09023RC](https://openairdocs.org/stc/SR09023RC): Installation of cabin hard interior panels in accordance with Heli-Dyne Master Drawing List HD900-00-0014, Revision A, dated June 21, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09025RC](https://openairdocs.org/stc/SR09025RC): Installation of a secondary litter in accordance with Heli-Dyne Master Drawing List HD900-00-0007, Revision A, dated June 21, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09026RC](https://openairdocs.org/stc/SR09026RC): Installation of an EMS floor covering in accordance with Heli-Dyne Master Drawing List HD900-00-0010, Revision B, dated June 21, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09029RC](https://openairdocs.org/stc/SR09029RC): Installation of an I.V. hook in accordance with Heli-Dyne Master Drawing List HD900-00-0006, Revision B, dated June 21, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09031RC](https://openairdocs.org/stc/SR09031RC): Installation of an Allied Signal EFIS-40 two tube electronic flight instrument system in accordance with Heli-Dyne drawing list HD900-00-0018, Rev. IR, dated May 22, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09040RC](https://openairdocs.org/stc/SR09040RC): Installation of an Observer/Attendant Seat, Blackout Curtain, and Pedal Cover in accordance with Heli-Dyne Master Drawing List HD900-00-0009, Revision D, dated August 28, 1995, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09073RC](https://openairdocs.org/stc/SR09073RC): Installation of high density seat track. MD Helicopters LLC
- [STC SR09151RC](https://openairdocs.org/stc/SR09151RC): Installation of an Allied Signal EFS-50 Four Tube Electronic Flight Instrument System (EFIS) for single pilot IFR operations in accordance with Heli-Dyne Drawing List, HD-900-00-0033, Revision IR, dated November 6, 1996, or later FAA approved revision. MD Helicopters LLC
- [STC SR09169RC](https://openairdocs.org/stc/SR09169RC): Installation of a Heli-Dyne Lucas fixed hoist. MD Helicopters LLC
- [STC SR09170RC](https://openairdocs.org/stc/SR09170RC): Installation of a SX-16 Nightsun in accordance with Heli-Dyne Systems, Inc. drawing list HD900-00-0031, Revision -, dated 4-11-97, or later FAA approved revisions. MD Helicopters LLC
- [STC SR09212RC](https://openairdocs.org/stc/SR09212RC): Installation of Bear Paw Skis in accordance with drawings listed on Dart Master Drawing List (MDL) MDL-D900-619 Revision B, dated 03-04-99, or later FAA approved revision. MD Helicopters LLC
- [STC SR01019SE](https://openairdocs.org/stc/SR01019SE): Installation of the Enhanced Ground Proximity Warning System. Honeywell International Inc
- [STC SR03463NY](https://openairdocs.org/stc/SR03463NY): Installation of Single Pilot Operation from L/H Seat Single Cockpit Door Removal. Brim Aviation
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SR00240WI-D](https://openairdocs.org/stc/SR00240WI-D): Installation of a Bendix/King VFR Utility Avionics Package (KCS 55A Compass System, KX 165 NavComm, KR 87 ADF, KRA 405 Radio Altimeter, Global Wulfsberg Flexcomm II, Artex Model 100 HM ELT, and Jet Model 510-22G Vertical Gyro. Honeywell International Inc
- [STC SR00964CH](https://openairdocs.org/stc/SR00964CH): Install 28-gallon Fargo Manufacturing Co auxiliary fuel system in aft cabin baggage bay. Fargo Manufacturing Co
- [STC SR01238CH](https://openairdocs.org/stc/SR01238CH): Install Fargo Manufacturing Auxiliary fuel system in aft cabin baggage bay. Fargo Manufacturing Co
- [STC SR01813CH](https://openairdocs.org/stc/SR01813CH): Install Fargo Manufacturing Co. 52.5-gallon, crashworthy auxiliary fuel tank manufactured pursuant to STC SR01238CH, 55-gallon auxiliary fuel tank manufactured pursuant to STC SR505CH, or 28-gallon auxiliary fuel tank manufactured pursuant to STC SR000964CH on the aft cabin baggage bay floor of MD Helicopters, Inc. Model MD900 configured with MD Helicopters, Inc. 31-gallon, under baggage bay floor supplementary fuel tank. Fargo Manufacturing Co
- [STC SR01926CH](https://openairdocs.org/stc/SR01926CH): Installation of Fargo Manufacturing Co. 61.8-gallon, crashworthy auxiliary fuel on the aft cabin baggage bay floor. Fargo Manufacturing Co
- [STC SR505CH](https://openairdocs.org/stc/SR505CH): Install Fargo auxiliary fuel system in aft cabin baggage bay. Fargo Manufacturing Co
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SR09036RC](https://openairdocs.org/stc/SR09036RC): Installation of a sliding window in cabin sliding door. The NORDAM Group LLC
- [STC SR09165RC](https://openairdocs.org/stc/SR09165RC): Installation of a cockpit door sliding window. The NORDAM Group LLC
- [STC SR00903SE](https://openairdocs.org/stc/SR00903SE): Fabrication of Dart D900-619-011 Bearpaws in accordance with Dart Aerospace Drawing List No. MDL-D900-619, Revision E, dated April 5, 2001, or later Federal Aviation Administration (FAA) approved revision; and installation of this system. Dart Aerospace USA Inc
- [STC SR02526CH](https://openairdocs.org/stc/SR02526CH): Installation of an Inlet Barrier Filter (IBF) System. Donaldson Company Inc
- [STC SR09024RC](https://openairdocs.org/stc/SR09024RC): Installation of a litter carriage. RSG Products
- [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 SR00174NM](https://openairdocs.org/stc/SR00174NM): Installation of Vapor Cycle Air Conditioning system. Air Comm Corporation
- [STC SR02232LA](https://openairdocs.org/stc/SR02232LA): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin AT Inc
- [STC SR03895AT](https://openairdocs.org/stc/SR03895AT): Installation of a Lead Acid Battery as a replacement for the existing Nickel-Cadmium Battery. Concorde Battery Corporation
- [STC SR02050SE](https://openairdocs.org/stc/SR02050SE): Installation of a Supplemental Lighting System; manufactured and installed. Aviation Specialties Unlimited Inc
- [STC SR09527RC](https://openairdocs.org/stc/SR09527RC): Installation of Enhanced Vision System. Heritage Aviation Ltd
- [STC SR00073LA](https://openairdocs.org/stc/SR00073LA): Installation of wire stroke protection system. Bristol Aerospace Ltd
- [STC SR09555RC](https://openairdocs.org/stc/SR09555RC): Installation of an EMS Interior. Heritage Aviation Ltd
- [STC SR09556RC](https://openairdocs.org/stc/SR09556RC): Installation of a Medical Oxygen System. Heritage Aviation Ltd
- [STC SR00243DE-D](https://openairdocs.org/stc/SR00243DE-D): Installation of an articulating patient litter system for use in an EMS interior. Air Methods Corporation

All 59: https://openairdocs.org/model/md-helicopters-md-900/stcs.md

## PMA parts (OpenAirDocs) (over 1,000, 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.

- [MDLDL-MD900AC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173966710920260923124201.0001): Vapor Cycle Air Conditioning System. Air Comm Corporation · PMA PQ0072NM · Modification part · Aug 31, 2026
- [MDLDL-MD900AC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117349281120250213205356.0001): Vapor Cycle Air Conditioning System. Air Comm Corporation · PMA PQ0072NM · Modification part · Feb 10, 2025
- [TA3195-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167602864720240531131444.0001): Heli-Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Apr 2, 2024
- [TA3195-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137579954020240531131443.0001): Heli-Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Apr 2, 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
- [M150SG1379-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183008701220220808142319.0001): Washer, Lock. Miraj Corporation · PMA PQ0870NE · Replaces 150SG1379-8 · Jul 19, 2022
- [MD90-ELT-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176311029320220728180435.0001): TOP KIT, ARTEX 406 ELT. Woven Electronics, LLC · PMA PQ00009EB · Replaces MD90-ELT-1 · Jun 30, 2022
- [P2-07-0015-(xxx) Series](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190008378720220630115930.0001): IE LED Flashlight System (Outline). Astronics - LSI · PMA PQ2119NE · Replaces DME P/N P2-07-0015-001 · Jun 28, 2022
- [P4-01-0014F-120](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161347384720220630115926.0001): Power Unit, BAS 5-2. Astronics - LSI · PMA PQ2119NE · Replaces P4-01-0014-210, Air Cruisers P/N… · Jun 28, 2022
- [01-0790906-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134339352920220610124315.0001): LED Landing Light. Whelen Aerospace Technologies · PMA PQ1372CE · Modification part · Jun 6, 2022
- [AG627000-13](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184788136220220809130910.0001): Gasket – Marker Beacon. Aviation Devices & Electronic Components LLC (Av-DEC) · PMA PQ3846SW · Modification part · May 10, 2022
- [CFAK-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152246129520220509143718.0001): First Aid Kit Assy. Astronics - LSI · PMA PQ2119NE · Replaces OEM · May 4, 2022
- [P2-07-0001-400](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117101337720220509143635.0001): Model EF-1 Breakaway Light System (Outline). Astronics - LSI · PMA PQ2119NE · Replaces P2-07-0001-400 · May 4, 2022
- [AG844000-23](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150833994720220809102540.0001): Gasket – UHF/VHF Antenna. Aviation Devices & Electronic Components LLC (Av-DEC) · PMA PQ3846SW · Modification part · Apr 18, 2022
- [AG844000-15](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152374703120220408135758.0001): Gasket – UHF/VHF Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Feb 8, 2022
- [AG728000-52](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115165560620220408135721.0001): Gasket – Satcom Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Jan 26, 2022
- [AG627000-23](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199531596820220408135657.0001): Gasket – Marker Beacon. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Dec 15, 2021
- [AG358000-08](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193694732220220408135810.0001): Gasket – ELT Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Nov 17, 2021
- [AG627000-12](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130190067220220408140237.0001): Gasket – Marker Beacon Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Nov 17, 2021
- [31300-0101-1221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197168205020240201163129.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1221 · Nov 1, 2021
- [153-017822-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197047885720240201163133.0001): Flexcomm Antenna. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 153-017822-01 · Nov 1, 2021
- [400-015525-0501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191510220120240201163132.0001): RT-5000 Remote Transceiver. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 400-015525-0501 · Nov 1, 2021
- [31300-03O1-1222](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188731903420240201163131.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-03O1-1222 · Nov 1, 2021
- [31300-0101-1222](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186274237220240201163129.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1222 · Nov 1, 2021
- [31300-0201-1210](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183539371220240201163130.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0201-1210 · Nov 1, 2021
- [400-015525-0101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177367892620240201163132.0001): RT-5000 Remote Transceiver. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 400-015525-0101 · Nov 1, 2021
- [31300-0101-1210](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168348500320240201163128.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1210 · Nov 1, 2021
- [31300-04O1-1221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157059641520240201163131.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-04O1-1221 · Nov 1, 2021
- [400-015525-0201](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156368876520240201163132.0001): RT-5000 Remote Transceiver. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 400-015525-0201 · Nov 1, 2021
- [400-015525-0301](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148043781220240201163132.0001): RT-5000 Remote Transceiver. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 400-015525-0301 · Nov 1, 2021
- [121-017850-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142974497120240201163133.0001): AT-550 Antenna. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 121-017850-01 · Nov 1, 2021
- [31300-0101-1230](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142199350220240201163129.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1230 · Nov 1, 2021
- [31300-0101-1211](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130273260620240201163129.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1211 · Nov 1, 2021
- [31300-0201-1222](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128037352320240201163131.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0201-1222 · Nov 1, 2021
- [31300-0101-1200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124230189520240201163128.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1200 · Nov 1, 2021
- [153-017851-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122854861820240201163133.0001): FC-550 Antenna Converter. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 153-017851-01 · Nov 1, 2021
- [400-015525-0401](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121413747020240201163132.0001): RT-5000 Remote Transceiver. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 400-015525-0401 · Nov 1, 2021
- [31300-04O1-1222](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120003151220240201163131.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-04O1-1222 · Nov 1, 2021
- [31300-0201-1200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114889062920240201163130.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1230 · Nov 1, 2021
- [31300-0101-1220](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111013257620240201163129.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0101-1220 · Nov 1, 2021
- [31300-0201-1220](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109935772220240201163130.0001): C-5000 FM Control Panel. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces 31300-0201-1220 · Nov 1, 2021
- [AG843000-17](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175868702720211110110511.0001): Gasket-UHF/VHF. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Aug 9, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID982043105320210622142457.0001): AeroLEDs LLC · PMA PQ5259NM · Jan 13, 2021
- [NOHIPOT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178368282720240320173405.0001): Decal. Augusta Aero Innovations LLC · PMA PQ04441CE · Replaces 06-201020 · Oct 6, 2020
- [AG247000-05](https://drs.faa.gov/browse/excelExternalWindow/A8B3EE75D8E4BBD2862585E5006243CC.0001): Gasket - Security System Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Aug 24, 2020
- [AG843000-19](https://drs.faa.gov/browse/excelExternalWindow/6325AFC5586C8E34862585E500649009.0001): Gasket - VHF Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Aug 24, 2020
- [AG822000-03](https://drs.faa.gov/browse/excelExternalWindow/25D416C8B528F4988625859F003C440E.0001): Gasket - TCAS Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · May 31, 2020
- [AG843000-17](https://drs.faa.gov/browse/excelExternalWindow/44F91AF19B0D8D4586258591003A1785.0001): Gasket - UHF/VHF Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Jan 1, 2020

All of them: https://openairdocs.org/model/md-helicopters-md-900/pma.md

## The same model under other registry codes

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

- [Mcdonnell Douglas Helicopter MD 900](https://openairdocs.org/model/mcdonnell-douglas-helicopter-md-900): 9 registered aircraft, registry code 3027375

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