# TCDS H19NM: MD Helicopters LLC

- Type: Type certificate data sheet
- Status: Current
- Holder: MD Helicopters LLC
- Revision: 10
- Revised: August 5, 2022
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Registered aircraft: 20, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/4d/0a/4d0ac1c8bfec5f7e8de4bd8ef69477c845070fc2e6cfe79f65a65d438d55f791
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E5914A9A21DF321C8625889A003FA490.0001
- Page: https://openairdocs.org/tcds/H19NM

## Models (1)

As the data sheet lists them.

- MD900

## What the data sheet says

Some pages are OCR from the scanned FAA data sheet. OCR can misread letters and numbers.

```text
Page No. 1 2 3 4 5 6 7 8 9 10 
Rev. No. 8 5 8 8 8 9 8 8 8 9 
 
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
H19NM 
Revision 10 
MD Helicopters, LLC 
MD900 
August 5, 2022 
 
TYPE CERTIFICATE DATA SHEET NO. H19NM 
This data sheet, which is part of Type Certificate No. H19NM , prescribes the conditions and limitations 
under which the product for which the type certificate was issued meets the airworthiness requirements of  
Title 14 of the Code of Federal Regulations. 
Type Certificate Holder MD Helicopters, LLC 
4555 East McDowell Road 
Mesa, Arizona 85215-9734 U.S.A. 
Type Certificate Holder Record McDonnell Douglas Helicopter Company (MDHC), a wholly owned 
subsidiary of the Boeing Company, transferred ownership of TC H19NM 
to MD Helicopters, Inc. (MDHI) on February 18, 1999. 
I  –  Model MD900 (Normal Category Rotorcraft), Approved December 2, 1994 
 
Two MD900 configurations are approved; a basic configuration, marketed by MDHI as the MD900, 
and an enhanced version with Category A approval, marketed by MDHI as the MD902.  See Note 5. 
 
Engines 2 Pratt and Whitney Canada, Inc. PW206A (TC No. E42NE), or 
 2 Pratt and Whitney Canada, Inc. PW206E (TC No. E42NE), or 
 2 Pratt and Whitney Canada, Inc. PW207E (TC No. E42NE) 
 
Fuel 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
* Secondary fuel for helicopters with PW206E or PW207E engines. 
** Secondary fuel limited by PWC to 100 hours of use, either continuous or 
intermittently between engine overhauls. 
See Rotorcraft Flight Manual (RFM) for additional limitations. 
Type Country and Specifications 
USA Canada UK France People’s 
Republic 
of China 
Russian & 
CIS Countries 
Kerosene 
Jet A 
 
Jet A-1 
JP-8 
 
 
ASTM D1655  
 
MIL-T-83133 
 
CAN/CGSB 
3.23 
 
DEF STAN 
91-87 
 
AIR 
3405D 
 
RP-3 
(GB 6537-94) 
 
R.T. 
TS-1 ** 
(GOST 
10227-86) 
Wide Cut * 
Jet B 
 
JP-4 
 
ASTM D1655 
MIL-T-5624 
 
CAN/CGSB 
3.22 
 
DEF STAN 
91-88 
 
AIR 
3407B 
  
High Flash 
JP-5 
 
MIL-T-5624 
 
CAN/CGSB 
3.GP-24Ma 
 
DEF STAN 
91-86 
 
AIR 
3404C

H19NM 2 of 10 
 Requirements for anti-icing additives 
 An approved fuel anti-icing additive is required when the ambient temperature is 
at or below 13ºF (-10ºC).  See RFM for additional limitations. 
Fuel Capacity Helicopters with PW206A engines 
 
Fuel System Capacity Usable Unusable Arm (gal) ( l ) (gal) ( l ) (gal) ( l ) (in) 
Standard 149.0 564.0 146.2 553.4 2.8 10.6 190.8 
Range Extender 161.3 610.6 158.5 600.0 2.8 10.6 190.9 
 Helicopters with PW206E or PW207E engines 
 
Fuel System Capacity Usable Unusable Arm (gal) ( l ) (gal) ( l ) (gal) ( l ) (in) 
Standard 161.3 610.6 158.5 600.0 2.8 10.6 190.9 
 See RFM, Section 6, Weight and Balance Data, for variations of fuel weight and 
moment-arm with variations of fuel type and fuel quantity.  Empty weight of the 
helicopter includes weight of unusable fuel. 
Fluids Engine Oil 
 Engine oils conforming to MIL-PRF-23699 are approved for use. 
See the latest revision of Pratt & Whitney Canada Installation Manual 
Turboshaft Engine PW206A, PW206E, or PW207E for approved oil 
manufacturers. 
 Transmission Oil 
 See RFM for approved oils.  Observe servicing instructions on placard on 
transmission oil filler. 
 Hydraulic Fluid 
 Hydraulic fluids conforming to MIL-PRF-83282 are approved for use. 
 
Fluid Capacity  
 
 
 
 
 
 
 
Fluid 
Type 
Component 
or System 
Capacity 
(gal) ( l ) 
Oil Engine (each) 1.04 3.93 Main Transmission 2.50 9.46 
Hydraulic 
Fluid 
System 1, Total 0.25 0.95 
System 2, Total 0.30 1.14 
Rotor Brake, Total 0.03 0.11

3 of 10 H19NM 
Engine Limits Pratt and Whitney Canada, Inc. PW206A 
 
All Engines Operating Limits 
Rating Max Torque Max MGT Max NG NP (Nominal) (ft-lb) (%) (ºC) (RPM) (%) (RPM) (%) 
Takeoff (5 min) 438 100 863 57,250 98.7  6,000  100  6,240*  104* 
Max Continuous 438 100 820 57,250 98.7  6,000  100  6,240*  104* 
One Engine Inoperative Limits (see Note 10) 
Rating Max Torque Max MGT Max NG NP (Nominal) (ft-lb) (%) (ºC) (RPM) (%) (RPM) (%) 
2.5 Minute 569 130 902 58,600 101  6,000  100  6,240*  104* 
Continuous 438 100 863 57,250 98.7  6,000  100 6,240*  104* 
 * N P operation at 6,240 RPM (104%) is limited to airspeed of 100 KIAS or less. 
 
 Pratt and Whitney Canada, Inc. PW206E 
 
All Engines Operating Limits 
Rating Max Torque Max MGT Max NG NP (Nominal) (ft-lb) (%) (ºC) (RPM) (%) (RPM) (%) 
Takeoff (5 min) 482 110 863 57,250 98.7 6,000 100 
Max Continuous 438 100 820 56,500 97.4 6,000 100 
One Engine Inoperative Limits 
Rating Max Torque Max MGT Max NG NP (Nominal) (ft-lb) (%) (ºC) (RPM) (%) (RPM) (%) 
2.5 Minute 569 130 930 59,400 102.4 6,000 100 
Continuous 544 124 885 58,250 100.4 6,000 100 
 
 Pratt and Whitney Canada, Inc. PW207E 
 
All Engines Operating Limits 
Rating Max Torque Max MGT Max NG NP (Nominal) (ft-lb) (%) (ºC) (RPM) (%) (RPM) (%) 
Takeoff (5 min) 482 110 900 57,900 99.8 6,000 100 
Max Continuous 438 100 850 56,400 97.2 6,000 100 
One Engine Inoperative Limits 
Rating Max Torque Max MGT Max NG NP (Nominal) (ft-lb) (%) (ºC) (RPM) (%) (RPM) (%) 
2.5 Minute 591 135 970 59,750 103 6,000 100 
Continuous 544 124 900 57,900 99.8 6,000 100

H19NM 4 of 10 
Rotor Speed Limits Helicopters with PW206A engines 
 
Condition  Minimum NR Maximum NR (RPM) (%) (RPM) (%) 
Power-On (more than 100 KIAS) 388 99 396 101 
Power-On (100 KIAS or less) * 388 99 412 105 
Power-Off  345 88 424 108 
 * When airspeed is 47 KIAS or less, the nominal NR is 104% 
 Helicopters with PW206E or PW207E engines 
 
Condition  Minimum NR Maximum NR (RPM) (%) (RPM) (%) 
Power-On 388 99 396 101 
Power-Off  345 88 424 108 
 
Transmission Torque Limits 
 
 
 
 
 
 
 
 
 
Airspeed Limits Power On and Power Off VNE  
  
Power On and Power Off VNE  when lateral C.G. exceeds +2 in. 
 60 KIAS 
Power On VNE with cargo hook installed 
 
 90 KIAS with no load on cargo hook 
 100 KIAS with a load on cargo hook.  See RFM for VNE above 5,500 ft HD 
Rating 
Max Torque at 100% NR 
PW206A PW206E PW207E 
(ft-lb) (%) (ft-lb) (%) (ft-lb) (%) 
Takeoff (5 min) 876 100 964 110 964 110 
Max Continuous 876 100 876 100 876 100 
OEI, 2.5 Minute 569 130 569 130 591 135 
OEI Continuous 438 100 544 124 544 124

5 of 10  H19NM
Center of Gravity (C.G.) Range  Lateral C.G. Range
7000
67 70
6500
6000
GROSS WIGHT - LBS  5500
5000  EXPANDED
CG LIMITS
4500
4000
3500
3000 _3  2  4
CHART A: LATERAL C.G. STATION (IN.)
Longitudinal C.G. Range
7000
6770
6500
6000
5100 LBS
- 5500
5000
4500
4000
3500
+ 3000
194 196 198 200 202 204 206 208
CHART B: LONGITUDINAL C.G. STATION (IN)
When the lateral C.G. is in the Expanded C.G. Limits area, depicted by the
dashed lines on Chart A, above, the longitudinal C.G. must not be aft of the
dashed line in the longitudinal C.G. chart, Chart B, above.

H19NM 6 of 10 
Empty Weight C.G. Range None. 
 
Maximum Weight 6,500 lb 
 6,770 lb for helicopters modified in accordance with MDHI Technical 
Bulletin No. TB900-044R1 or later FAA approved revision. (See Note 11) 
Minimum Crew 1 pilot, seated in the right crew seat. 
 
Number of Passenger Seats 7 seats, located as follows: 
 
Location No. of Seats Arm (in) 
Crew Compartment 1 130.7 
Cabin, Forward 3 173.0 
Cabin, Aft 3 213.0 
 
 See RFM for other approved cabin configurations. 
Maximum Compartment Weight Cargo deck 
 
 1,500 lb, not to exceed floor loading density of 115 lb per square foot. 
 
 Baggage compartment 
 
 500 lb, not to exceed floor loading density of 115 lb per square foot. 
Maximum Operating Altitude W eights of 6,250 lb or less 
 
 Helicopters with PW206A engines:   20,000 feet density altitude 
 Helicopters with PW206E or PW207E engines and using – 
  P rimary fuels: 20,000 feet density altitude, or 
  Secondary fuels: 10,000 feet density altitude 
 Weights  from 6,251 lb. to 6,500 lb 
 14,000 feet density altitude 
 Weights from 6501 lb to  6,770 lb 
 3,000 feet density altitude 
Manufacturer Serial Numbers S/N 900-00008, 900-00010, and subsequent. 
 S/N 900-00052 and subsequent are produced as enhanced versions.  See Note 5. 
 
Certification Basis 14 CFR part 27 as amended by Amendment 27-1 through Amendment 27-26. 
 14 CFR part 36 as amended by Amendment 36-1 through Amendment 36-20, 
Appendix J for initial certification at a maximum weight of 6,000 lb with P&W 
206A engines. 
 14 CFR part 36 as amended by Amendment 36-1 through Amendment 36-21, 
Appendix H (See Exemption No. 6505.) for certification at: 
  A maximum weight of 6,500 lb with P&W 206A engines, and

7 of 10 H19NM 
  M aximum weights of 6,250 lb and 6,500 lb with P&W 207E engines. 
 The FAA determined that the noise characteristics of the MD900 at a maximum 
weight of 6,250 lb with P&W 206E engines were equivalent to the 
characteristics approved in the initial certification. 
 The FAA determined that the noise characteristics of the MD900 at a maximum 
weight of 6,500 lb with P&W 206E engines were equivalent to the 
characteristics approved for the MD900 at a maximum weight of 6,500 lb with 
P&W 206A engines. 
 The FAA determined that the noise characteristics of the MD900 incorporating 
the thruster extension kit with P&W 206A, 206E, or 207E engines were 
equivalent to the previously approved noise characteristics. 
 14 CFR part 36 as amended by Amendment 36-1 through Amendment 36-25, 
Appendix J for certification at a maximum weight of 6,770 lb with P&W 207E  
engines. 
 MDHI requested certification of the MD900 (902 configuration) to the proposed 
Category A requirements for part 27 rotorcraft in Docket No. 28008; Notice No. 
94-36, “Rotorcraft Regulatory Changes Based on European Joint Airworthiness 
Requirements Proposals,”  The FAA concurred with MDHI’s request and 
subsequently certificated the MD900 for Category A operations.  The Category 
A requirements in NPRM 94-36, with minor changes, were incorporated into 
part 27 as Appendix C – Criteria for Category A by Amendment 27-33. 
Special Condition 
 Docket No. 91-ASW-2; Special Condition 29-ASW-2, “McDonnell Douglas 
Model MD-900 Helicopter, Critical Functioning Electrical/Electronic Systems.”  
Issued December 26, 1991.  This special condition addresses protection for 
electrical/electronic systems from High Intensity Radiated Fields (HIRF).  See 
http://rgl.faa.gov for the full text of this special condition. 
 Equivalent Level of Safety (ELOS) Findings 
 ELOS No. TD9369LA-R/F-2, “MD Helicopters, Incorporated (MDHI), 
Equivalent Level of Safety (ELOS) Finding to 14 CFR 27.143(c)(4) and 
27.1587(a)(2)(ii).”  This ELOS addresses low speed controllability and the 
associated presentation of information in the RFM. 
 Equivalent Level of Safety (ELOS) finding for compliance to 29.1181(a) and 
29.1191(a)(1) for the engine forward firewall. 
Exemptions 
Exemption No. 6505, “In the matter of the petition of McDonnell Douglas 
Helicopter Systems for an exemption from Section 27.1(a) of Title 14, Code of 
Federal Regulations,” issued on September 5, 1996.  This exemption allowed 
McDonnell Douglas Helicopter Systems to increase the maximum gross weight 
of the MD900 from 6,000 lb to 7,000 lb.  Title 14 CFR 27.1(a) was amended in 
1999 to expand the maximum weight limit for normal category rotorcraft to 
7,000 lb. 
Exemption No. 7360, “In the matter of the petition of MD Helicopters Inc. for 
an exemption from Section C36.105(c)(1) of Title 14, Code of Federal 
Regulations” issued on September 27, 2000.  (The section cited in the exemption 
title is incorrect.  The correct section, H36.105(c)(1), is discussed in the body of 
the exemption.)  This exemption allowed an alternative level flyover airspeed of 
90 percent of the never-exceed airspeed (0.9VNE) for use in the 14 CFR part 36 
noise certification of the MD900 at weights above 6,250 lb since at those

H19NM 8 of 10 
weights MDHI defined the VNE as 100 KTAS, a speed less than the true VH.  
This exemption expired on July 2, 2004 when Appendix H was amended to 
include this criteria. 
Type Certificate 
Date of application:  April 25, 1989 
Type Certificate No. H19NM, issued on December 2, 1994 
TC reissued on February 8, 1999 to replace certificate reported lost. 
TC reissued on February 18, 1999 to MD Helicopters, Inc. 
Kinds of Operation 
The MD900 (all versions) is eligible for the following operations when the 
appropriate equipment and instruments required by the airworthiness and 
operating regulations are installed, approved, and in an operable condition: 
• Day and night operation under visual flight rules (VFR) 
• Day and night operation under instrument flight rules (IFR), see 
requirements in Note 9. 
Datum 199.3 inches forward of the main rotor hub centerline. 
Leveling Means Plumb line from aft inside top of left cabin door frame, Fuselage Station 215.43. 
Control Surface Movements For rigging information refer to the MDHI Model MD900 Maintenance Manual, 
publication no. CSP-900RMM-2 
Production Basis Production Certificate No. PC 410NM was issued to McDonnell Douglas 
Helicopter Company (MDHC), the original holder of TC H19NM.  MDHC built 
helicopter serial numbers 900-00065 and prior under this PC. 
 Production Certificate No. PC 714NM was issued to McDonnell Douglas 
Helicopter Company (MDHC) on February 19, 1999.  MDHC, under license 
from MDHI, built helicopter serial numbers 900-00066 and 900-00067 under 
this PC. 
 Production Certificate No. PC 715NM.  This PC was issued to MDHI on 
November 5, 1999.  Helicopters manufactured under this PC include serial 
numbers 900-00068 and subsequent. 
Equipment The basic required equipment as prescribed in the applicable airworthiness 
regulations (see Certification Basis) must be installed in the helicopter for 
certification.  In addition, the following FAA Approved Rotorcraft Flight 
Manuals (RFM) or FAA Approved RFM Supplements are required: 
 MD900 (Basic RFM, 6,500 LB) 
 Helicopters with PW206A engines:  RFM No. CSP-900RFM206A-1 
 Helicopters with PW206E engines:  RFM No. CSP-900RFM206E-1 
 Helicopters with PW207E engines:  RFM No. CSP-900RFM207E-1 
 MD900 (902 Configuration) (Basic RFM, 6,500 LB ) 
 Helicopters with PW206E engines:  RFM No. CSP-902RFM206E-1 
 Helicopters with PW207E engines:  RFM No. CSP-902RFM207E-1 
 MD900 with PW207E engines (RFM Supplements, 6,770 LB) 
 900 Configuration:  CSP-900RFM207E-S-3 
 902 Configuration:  CSP-902RFM207E-S-3

9 of 10 H19NM 
Notes 
Note 1. A current Basic Weight and Balance Record, and MD900 Required/Optional 
Equipment List must be provided for each aircraft at the time of original 
certification. 
Note 2. See FAA Approved Rotorcraft Flight Manual for required placards. 
Note 3. The retirement times of certain parts and inspection requirements are listed in 
Airworthiness Limitations Section (ALS), Section 04-00-00, of the Model 
MD900 Maintenance Manual (CSP-900RMM-2).  These values of retirement of 
service lives and inspection cannot be increased without FAA approval.  See 
http://www.mdhelicopters.com/publications/pdf/pubs_index/900index.pdf to 
determine the current revision of level of CSP-900RMM-2. 
Note 4. For initial type certification, MDHS elected to incorporate engine isolation 
features that comply with engine isolation requirements in §§ 27.79(b)(2), 
27.141(b)(1) and 27.143(d)(1).  Compliance was shown by applying the limited 
time period method presented in Advisory Circular AC 27-1.  This method was 
presented in paragraph 780 of the AC revision in effect when the MD900 was 
initially certificated, but now resides in paragraph AC 27 MG 3 of the current 
revision.  This method was applied to the multiengine Category A engine 
isolation requirements in part 29 as amended through Amendment 29-29. 
Note 5. On February 11, 1998, the FAA approved an enhanced version of the MD900 
for Category A operations.  The enhanced version, designated MD902 by 
MDHI, is referred to by the FAA as the MD900 (902 Configuration).  The 
MD900 (902 Configuration) incorporated a number of changes, including 
additional engine isolation features, changes to the Integrated Instrument 
Display System (IIDS), and a separate RFM.  These changes allowed the 
MD900 (902 Configuration) to comply fully with Category A certification 
requirements. 
Note 6. The MD900 rotorcraft employs electronic engine controls, commonly referred to 
as Full Authority Digital Engine Controls (FADEC).  Engines with FADEC are 
recognized to be more susceptible to Electromagnetic Interference (EMI) than 
engines with manual (non-electronic) controls.  For this reason, modifications 
that add or change electrical systems that have the potential for EMI must be 
qualified to an FAA acceptable standard.  For guidance refer to section MG-4 of 
Advisory Circular AC 27-1B Change 2, or later revision.  See MDHI Service 
Bulletin SB900-067R1 “Electromagnetic Compatibility Test” or latest approved 
revision. 
Note 7. Any changes to the type design of this helicopter by means of an amended type 
certificate (TC), supplemental type certificate (STC), or amended STC, 
requiring instructions for continued airworthiness (ICA) must be submitted 
through the project aircraft certification office (ACO) for review and acceptance 
by the Fort Worth -Aircraft Evaluation Group (FTW-AEG) Flight Standards 
District Office (FSDO) prior to the aircraft delivery, or upon issuance of the first 
standard airworthiness certificate for the affected aircraft, whichever occurs later 
as prescribed by Title 14 CFR 21.50.  Type design changes (major repairs or 
alterations) by means of a FAA Form 337 (field approval) that require ICA’s 
must have those ICA’s reviewed by the field approving FSDO. 
Note 8  MD900 serial numbers 900-00008 through 900-00051 are eligible for 
conversion to the enhanced version (902 configuration).  Each eligible

H19NM 10 of 10 
helicopter, after conversion to the enhanced version in accordance with MDHI 
Report No. 900R000378 Rev - or MDHI Technical Bulletin TB900-28, fully 
complies with Category A certification requirements (See Certification Basis 
and Note 5).  The conversion includes replacement of the original Rotorcraft 
Flight Manual with the Rotorcraft Flight Manual for the enhanced version, 
MDHI Publication No. CSP-902RFM207E-1.  
Note 9 Model MD900 helicopters, S/N 900-00010 and subsequent, are eligible for day 
and night IFR operations, when modified in accordance with MD Helicopters 
Inc. STC SR00436WI-D.  The STC addresses Single Pilot, Dual Pilot, and 
Category A operations. 
 
Note 10 MD900s S/N 900-00010 through 900-00051 with PW 206A engines may 
operate with increased One Engine Inoperative (OEI) torque limits with the 
incorporation of Technical Bulletin TB900-010R1 or later approved revision. 
 
Note 11 MD900s certificated for a maximum weight of 6,770 lbs. are limited to those 
aircraft that have been modified in accordance with MDHI Technical Bulletin 
TB900-044R1 or later FAA approved revision and identified by serial number in 
FAA Approved RFM Supplement specified by the technical bulletin. 
 
 
----End----
```

## ADs (38, in force first)

- [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 2002-22-51](https://openairdocs.org/ad/2002-22-51): Main rotor support static mast (mast) · MD Helicopters MD900. Effective Dec 26, 2002
- [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 2002-15-07](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
- [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 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 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 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 2003-13-51](https://openairdocs.org/ad/2003-13-51) (historical): Main rotor blade retention bolt (bolt) · MD Helicopter 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 2008-18-52](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 2010-18-51](https://openairdocs.org/ad/2010-18-51) (historical): Cracks in the lower main rotor hub · MD Helicopter MD900
- [AD 99-26-20 L](https://openairdocs.org/ad/99-26-20-L) (historical): Hub assembly Drive Plate Attach Flange · MD Helicopter MD900

## Registered aircraft by registry model (OpenAirDocs)

- [MD Helicopters MD 900](https://openairdocs.org/model/md-helicopters-md-900): 11 aircraft (registry code 3030004)
- [Mcdonnell Douglas Helicopter MD 900](https://openairdocs.org/model/mcdonnell-douglas-helicopter-md-900): 9 aircraft (registry code 3027375)

## STCs approved under this data sheet (59, first 50)

- [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/tcds/H19NM/stcs.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.