# TCDS H11NM: Robinson Helicopter Company

- Type: Type certificate data sheet
- Status: Current
- Holder: Robinson Helicopter Company
- Revision: 11
- Revised: January 29, 2024
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Registered aircraft: 1,938, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/2b/8a/2b8a0b0f6cba8cbb8c71fea51c586acd58f591dae723d56263ca7b5863a4c7ca
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196539584420240129200545.0001
- Page: https://openairdocs.org/tcds/H11NM

## Models (2)

As the data sheet lists them.

- R44 II
- R44

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
DEPAPTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
 
 
 
TYPE CERTIFICATE DATA SHEET NO. H11NM 
 
This data sheet, which is a part of Type Certificate No. H11NM, prescribes conditions and limitations under which the product 
for which the type certificate was issued meets the airworthiness requirements of the Federal Aviation Regulations. 
 
Type Certificate Holder: Robinson Helicopter Company 
2901 Airport Drive 
Torrance, California 90505 
 
I. Model R44 (Normal Category Rotorcraft), Approved December 10, 1992 
 
 
Model R44 helicopters with serial numbers below 10000 are configured with four seats. Model R44 helicopters with serial number 
30001 and subsequent are configured with two seats. Some limita tions are configuration-specific as indicated below. The 
Rotorcraft Flight Manual is also confi guration-specific and has manufacturer’s doc ument number RTR 461 for the four seat 
configuration and RTR 463 for the two seat configuration. 
 
Engine One Lycoming O-540-F1B5, Type Certificate number E-295 
 
Fuel See Rotorcraft Flight Manual (RFM) 
 
Engine Limits S/Ns below 10000: 
 
Maximum continuous: 205 hp at 2718 rpm (102%) 
Takeoff (5 minute): 225 hp at 2718 rpm (102%) 
S/N 30001 and subsequent: 
Maximum continuous: 185 hp at 2718 rpm (102%) 
Takeoff (5 minute): 210 hp at 2718 rpm (102%) 
For all S/Ns: 
See appropriate Rotorcraft Flight Manual for manifold pressure settings corresponding to 
horsepower limits. 
 
 
Rotor Speed Limits (all S/Ns) Power Off (Rotor Tach) Powe r On (Rotor Tach) 
Maximum: 432 rpm (108%) Maximum: 408 rpm (102%) 
Minimum: 360 rpm (90%) Minimum: 404 rpm (101%) * 
* Earlier R44s with tachometers showing an engine green arc range of 99% to 102% have 
a minimum power-on rotor speed of 396 rpm. 
 
 
 
 
 
 
Page No. 1 2 3 4 5 6 7 
Rev. No. 11 8 11 10 11 10 10 
H11NM 
Revision 11 
Robinson 
R44 
R44 II 
January 29, 2024

H11NM Page 2 of 7 
 
 
 
I. Model R44 (Normal Category Rotorcraft), Approved December 10, 1992, (cont'd) 
 
Airspeed Limits S/Ns below 10000: 
 
VNE (never exceed speed) at sea level is 130 KIAS (120 KIAS with fixed floats) for takeoff 
gross weights of 2200 lbs. or less. V NE at sea level is 120 KIAS (110 KIAS with fixed 
floats) for takeoff gross weights over 2200 lbs. 
 
S/N 30001 and subsequent: 
 
VNE (never exceed speed) at sea level is 120 KIAS for all takeoff weights with or without 
fixed floats. 
 
For all S/Ns: 
 
Power Off (Autorotation) VNE at sea level is 100 KIAS. 
 
For reduction of V NE with altitude and temperature, se e appropriate Rotorcraft Flight 
Manual. 
 
Airspeed limit at power settings above Maximum Continuous Power is 100 KIAS. 
Airspeed limit with inflated pop-out floats is 80 KIAS. 
Airspeed limit for any combination of Doors Off is 100 KIAS. 
 
 
 
Center of Gravity (C.G.) Range S/Ns below 10000: 
Longitudinal C.G. Range Lateral C.G. Range 
Gross 
Weight 
(lbs.) 
 
Forward 
(in.) 
 
Aft 
(in.) 
Long. 
C. G. 
(in.) 
 
Left 
(in.) 
 
Right 
(in.) 
1550 92.0 102.5 92.0 -3.0 +3.0 
2000 92.0 102.5 100.0 -3.0 +3.0 
2200 92.0 100.25 102.5 -1.5 +1.5 
2400 93.0 98.0    
Note: Straight line variation between points shown 
 
S/N 30001 and subsequent: 
Longitudinal C.G. Range Lateral C.G. Range 
Gross 
Weight 
(lbs.) 
 
Forward 
(in.) 
 
Aft 
(in.) 
Long. 
C. G. 
(in.) 
 
Left 
(in.) 
 
Right 
(in.) 
1550 92.0 102.5 92.0 -3.0 +3.0 
2000 92.0 102.5 100.0 -3.0 +3.0 
2200 93.0 100.25 102.5 -1.5 +1.5 
Note: Straight line variation between points shown 
 
Empty Weight C.G. Limit For all S/Ns, Empty weight C.G. must be such that calculated C.G. with 150 lb. pilot and 
full fuel is at STA 102.5 or forward. 
 
Maximum Weight S/Ns below 10000: 
2400 lb. 
 
S/N 30001 and subsequent: 
2200 lb.

H11NM Page 3 of 7 
 
 
 
I. Model R44 (Normal Category Rotorcraft), Approved December 10, 1992, (cont'd) 
 
Minimum Crew 1 pilot at right side control station 
 
Number of Seats S/Ns below 10000: 
4 (3 for Police and ENG Version) 
 
Seat Locations: Pilot and Forward Passenger at STA 49.5 
Aft Passengers at STA 79.5 
 
S/N 30001 and subsequent: 
2 
 
Seat Locations: STA 49.5 
 
Maximum Baggage 50 pounds of baggage and installed equipment in any baggage compartment. For any 
seat location, the maximum combined weight of the seat load, baggage, and installed 
equipment is 300 lbs. 
 
For S/N 30001 and subsequent, maximum load on aft deck is 50 lbs each side, and 
maximum load in each compartment under aft deck is 50 lb. 
 
Fuel Capacity  
Tank 
Tanks Without Bladders Tanks With Bladders Location 
(STA) Capacity (gal.) Usable (gal.) Capacity (gal.) Usable (gal.) 
Main 31.6 30.6 30.5 29.5 106.0 
Auxiliary 18.5 18.3 17.2 17.0 102.0 
 
Oil Capacity Component Capacity 
(qt.) 
Location 
(STA) 
Engine 9 110.0 
Main Rotor Transmission 2 100.0 
Tail Rotor Transmission 0.11 327.0 
Hydraulic Reservoir (if installed) 0.65 117.0 
 
Maximum Operating Altitude Density Al titude Limit 14,000 ft. 
Maximum altitude above ground level is 9000 ft . to allow landing within 5 minutes in 
case of fire. 
 
Manufacturer’s Serial Numbers 0002, 0004 thru 9999 except 1140, 30001 and subsequent. 
 
Certification Basis 14 CFR Part 27, dated February 1, 1965, including Amendments 27-1 through 27-24, 
Exemption No. 5473 dated July 2, 1992, to §27.955(a)(7) and 27.1305(q). 
 
For S/N 2611 thru 9999, 30061, 30066 and subsequent: 
14 CFR §§ 27.952(a), 27.952(c), 27.952(f), 27.952(g), 27.963(g) (except with a minimum 
puncture force of 250 pounds), and 27.975(b) as amended by Amendment 27-30 (see Note 
11). 
14 CFR Part 36 Amendment 36-20. 
 
 The certification basis for areas changed or affected by F050-1 Symmetric Horizontal 
Stabilizer Installation includes the following regulations at later amendment: 
14 CFR § 27.49(a), § 27.71 and § 27.75(a) at Amendment 27-44 
14 CFR § 27.351 and § 27.391 at Amendment 27-34 
14 CFR § 27.427 at Amendment 27-27 
14 CFR § 27.613, § 27.629 and § 27.663 at Amendment 27-26 
14 CFR Part 36 Amendment 36-31. 
 
Equivalent Safety Findings: 
Number TD10352LA-R/S-1 
14 CFR Part 27.1401(d), Anticollision Light System 
 
Number AT16516LA-R-S-1 
14 CFR Part 27.695(a)(1), Power boost and power-operated control system. 
(see Note 10)

H11NM Page 4 of 7 
 
 
 
I. Model R44 (Normal Category Rotorcraft), Approved December 10, 1992, (cont'd) 
 
For S/N 2611 thru 9999, 30061, 30066 and subsequent: 
Number AT17187LA-R/P-1 
14 CFR part 27.952(c)(1)(i) Breakaway coupling separation load (see Note 11) 
 
Special Condition: 
No. 27-033-SC Robinson Model R44 and R44 II Helicopters, Installation of HeliSAS 
Autopilot and Stabilization Augmentation System (AP/SAS). 
 
 
Equipment The basic required equipment as prescrib ed in the applicable airworthiness regulations 
(see Certification Basis) must be installed in the aircraft for certification. In addition, 
the following FAA-approved Rotorcraft Flight Manual is required: 
 
S/Ns below 10000: 
R44 Rotorcraft Flight Manual (RTR 461) dated December 10, 1992, or later revision 
(See NOTES 4, 5, & 6). 
 
S/N 30001 and above: 
R44 Cadet Rotorcraft Flight Manual (RTR 463) dated April 29, 2016, or later revision. 
 
 
II. Model R44 II (Normal Category Rotorcraft), Approved October 3, 2002 
 
 
The R44 II helicopter includes a fuel injected engine wi th a 245 hp takeoff rating and a maxium weight of 2500 lb.  The 
Rotorcraft Flight Manual has manufacturer’s document number RTR 462. 
 
Engine One Lycoming IO-540-AE1A5,  Type Certificate number 1E4 
 
Fuel See Rotorcraft Flight Manual (RFM) 
 
Engine Limits Maximum continuous: 205 hp at 2718 rpm (102%) 
Takeoff (5 minute): 245 hp at 2718 rpm ( 102%) 
 
See Rotorcraft Flight Manual for manifold pressure settings corresponding to horsepower 
limits. 
 
Rotor Speed Limits Power Off (Rotor Tach) Powe r On (Rotor Tach) 
Maximum: 432 rpm (108%) Maximum: 408 rpm (102%) 
Minimum: 360 rpm (90%) Minimum: 404 rpm (101%) 
 
 
Airspeed Limits V NE (never exceed speed) at sea level is 130 KIAS (120 KIAS with fixed floats) for 
takeoff gross weights of 2200 lbs. or less. V NE at sea level is 120 KIAS (110 KIAS with 
fixed floats) for takeoff gross weights over 2200 lbs. 
 
Power Off (Autorotation) VNE at sea level is 100 KIAS. 
 
For reduction of VNE with altitude and temperature, see Rotorcraft Flight Manual. 
Airspeed limit at power settings above Maximum Continuous Power is 100 KIAS. 
Airspeed limit with inflated pop-out floats is 80 KIAS. 
Airspeed limit for any combination of Doors Off is 100 KIAS.

H11NM Page 5 of 7 
 
 
II. Model R44 II (Normal Category Rotorcraft), Approved October 3, 2002, (cont'd) 
 
Center of Gravity (C.G.) Range 
 
 
 
 
 
 
Note: Straight line variation between points shown 
 
Empty Weight C.G. Limit Empty weight C.G. must be such th at calculated C.G. with 150 lb. pilot and full fuel is at 
STA 102.5 or forward. 
 
Maximum Weight 2500 lb. 
2400 lb. for intentional water landings with fixed or pop-out floats. 
 
Minimum Crew 1 pilot in forward right seat. 
 
Number of Seats 4 (3 for Police and ENG Versions) 
Seat Locations: Pilot and Forward Passenger at STA 49.5 
Aft Passengers at STA 79.5 
 
Maximum Baggage 50 pounds of baggage and installed equipment in any baggage compartment. For any 
seat location, the maximum combined weight of the seat load, baggage, and installed 
equipment is 300 lbs. 
 
Fuel Capacity  
Tank 
Tanks Without Bladders Tanks With Bladders Location 
(STA) Capacity 
(gal.) 
Usable 
(gal.) 
Capacity 
(gal.) 
Usable 
(gal.) 
Main 31.6 30.6 30.5 29.5 106.0 
Auxiliary 18.5 18.3 17.2 17.0 102.0 
 
Oil Capacity  
Component 
Capacity 
(qt.) 
Location 
(STA) 
Engine 9 110.0 
Main Rotor Transmission 2 100.0 
Tail Rotor Transmission 0.11 327.0 
Hydraulic Reservoir 0.65 117.0 
 
Maximum Operating Altitude Density Altitude Limit - 14, 000 ft. 
Maximum altitude above ground level is 9000 ft. to allow landing within 5 minutes in 
case of fire. 
 
Manufacturer’s Serial Numbers 1140, 10001 thru 29999 
 
Certification Basis 14 CFR Part 27, dated February 1, 1965, including Amendments 27-1 through 27-24. 
 
For S/N 14364, 14385, 14387 thru 29999: 
14 CFR §§ 27.952(a), 27.952(c), 27.952(f), 27.952(g), 27.963(g) (except with a minimum 
puncture force of 250 pounds), and 27.975(b) as  amended by Amendment 27-30 (see Note 
11). 
14 CFR Part 36 Amendment 36-24.  
 
The certification basis for areas changed or affected by F050-1 Symmetric Horizontal 
Stabilizer Installation includes the following regulations at later amendment: 
14 CFR § 27.49(a), § 27.71 and § 27.75(a) at Amendment 27-44 
14 CFR § 27.351 and § 27.391 at Amendment 27-34 
14 CFR § 27.427 at Amendment 27-27 
14 CFR § 27.613, § 27.629 and § 27.663 at Amendment 27-26 
14 CFR Part 36 Amendment 36-31. 
 
Equivalent Safety Findings: 
Number TD10352LA-R/S-1 
14 CFR Part 27.1401(d), Anticollision Light System 
Longitudinal C.G. Range Lateral C.G. Range 
Gross 
Weight 
(lbs.) 
 
Forward 
(in.) 
 
Aft 
(in.) 
Long. 
C. G. 
(in.) 
 
Left 
(in.) 
 
Right 
(in.) 
1600 92.0 102.5 92.0 -3.0 +3.0 
2100 92.0 102.5 100.0 -3.0 +3.0 
2300 92.0 100.25 102.5 -1.5 +1.5 
2500 93.0 98.0

H11NM Page 6 of 7 
 
 
 
II. Model R44 II (Normal Category Rotorcraft), Approved October 3, 2002, (cont'd) 
 
Number AT16516LA-R-S-1 
14 CFR Part 27.695(a)(1), Power boost and power-operated control system (see Note 10) 
 
For S/N 14364, 14385, 14387 thru 29999: 
Number AT17187LA-R/P-1 
14 CFR Part 27.952(c)(1)(i) Breakaway coupling separation load (see Note 11) 
 
Special Condition: 
No. 27-033-SC Robinson Model R44 and R44 II Helicopters, Installation of HeliSAS 
Autopilot and Stabilization Augmentation System (AP/SAS). 
 
Equipment The basic required equipment as prescrib ed in the applicable airworthiness regulations 
(see Certification Basis) must be installed in the aircraft for certification. In addition, 
the following FAA-approved Rotorcraft Flight Manual is required: 
 
R44 II Rotorcraft Flight Manual (RTR 462) dated October 3, 2002, or later revision. 
 
 
DATA PERTINENT TO BOTH MODELS 
 
Datum 100 in. forward of main rotor centerline. 
 
Leveling Means Refer to the R44 Maintenance Manua l and Instructions for Continued Airworthiness 
(RTR 460). 
 
Rotor Blade and Control 
Movements 
Main Rotor blade angles at 75% radius: 
 Collective Pitch: 12.5° ±1.0° total travel 
 
Note: Collective low pitch to be establis hed in accordance with the Maintenance 
Manual and Instructions for Continued Airworthiness (RTR 460) procedures to obtain 
proper autorotation RPM. 
 
Cyclic Pitch: Forwar d 13.50° to 14.25° 
 Aft 13.50° to 14.25° 
 Left 7.5°  to 8.5° 
 Right 6.0°  to 7.0° 
 
Tail Rotor blade angles at 75% radius: 
 
Collective Pitch: Full right pedal 15.5° to 16.5° 
 Full left pedal 18.5° to 19.0° 
 
 
Production Basis Production Certificate No. 424WE dated February 11, 1993. 
GENERAL NOTES 
NOTE 1. A current weight and balance repo rt, including a list of equipment included in the certificated empty weight, 
and loading instructions when necessary, must be provided for each aircraft at the time of original 
airworthiness certification and at all times thereafter , except in the case of operators having an approved 
weight control system. 
 
NOTE 2. The following placard must be installed in clear view of the pilot: 
"THIS ROTORCRAFT APPROVED FOR DAY AND NIGHT VFR OPERATIONS"

H11NM Page 7 of 7 
 
For additional placards, see the Rotorcraft Flight Manua l. All placards required in the Rotorcraft Flight 
Manual must be installed in the appropriate locations. 
 
NOTE 3. Information essential to the proper maintenance of the helicopter, including retirement time of critical 
components, is contained in the Robinson R44 Ma intenance Manual and Inst ructions for Continued 
Airworthiness (RTR 460). Retirement times are listed in the "AIRWORTHINESS LIMITATIONS" section. 
 
NOTE 4. R44 Rotorcraft Flight Manual Supplement 5 dated July 17, 1996, or later revision is required when float 
landing gear is installed. 
 
NOTE 5. R44 Rotorcraft Flight Manual Supplement 10 date d June 10, 1999, or later revision is required when 
emergency (pop-out) floats are installed. 
 
NOTE 6. R44 Rotorcraft Flight Manual with revisions throu gh November 5, 1999, or later revision is required when 
hydraulically-boosted main rotor flight controls are installed. 
 
NOTE 7. Deleted as of April 29 2016. 
 
NOTE 8. Deleted as of April 29, 2016. 
 
NOTE 9. Deleted as of February 13, 2015. 
 
NOTE 10. Robinson Helicopter Company was granted AT16516LA- R-S-1 Equivalent Level of Safety (ELOS) finding to 
CFR §27.695(a)(1), dated July 17, 2017. The FAA concluded that the control valve design provided equivalent 
level of safety to the requirement intended by the regulation. Exemption No. 6692, dated October 17, 1997, has 
been removed. This exemption allowed RHC to obtain certification of the design change without considering 
the jamming of a control valve in the powered flight control system as a possible single failure. There is no 
impact to R44 helicopters in service. 
 
NOTE 11. To operate in U.S. airspace, the following helicopter serial numbers meet the crash resistant fuel system 
certification basis requirements per section 44737 of Title 49 U.S.C.: Model R44, S/N 2611 thru 9999, 30061, 
30066 and subsequent; Model R44 II, S/N 14364, 14385, 14387 thru 29999. 
 
END
```

## ADs (43, in force first)

- [AD 2025-11-07](https://openairdocs.org/ad/2025-11-07): Engine/Transmission Coupling · Robinson Helicopter R44 and R44 II. Effective Jul 11, 2025
- [AD 2024-23-01](https://openairdocs.org/ad/2024-23-01): Main rotor drive system, Rotorcraft flight control · Robinson Helicopter R44 and R44 II. Effective Jan 7, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024
- [AD 2024-20-03](https://openairdocs.org/ad/2024-20-03): Flight Control System · Robinson Helicopter R22 BETA, R22 MARINER, R44 and 1 more. Effective Nov 29, 2024
- [AD 2024-04-02](https://openairdocs.org/ad/2024-04-02): Tail Rotor Blades · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 4 more. Effective Apr 2, 2024
- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023
- [AD 2022-19-12](https://openairdocs.org/ad/2022-19-12): Tail Rotor Blades · Robinson Helicopter R44, R44 II and R66. Effective Oct 20, 2022
- [AD 2022-12-08](https://openairdocs.org/ad/2022-12-08): Flight Control System Wiring, Engine Control System Wiring, Engine RPM Indicating System · Robinson Helicopter R22 BETA, R44 and R44 II. Effective Jun 29, 2022
- [AD 2020-18-08](https://openairdocs.org/ad/2020-18-08): Engine Air Intake System · Robinson Helicopter R44 II. Effective Aug 27, 2020
- [AD 2020-08-10](https://openairdocs.org/ad/2020-08-10): Tail Rotor Blades · Robinson Helicopter R44 and R44 II. Effective May 22, 2020
- [AD 2020-05-11](https://openairdocs.org/ad/2020-05-11): Agricultural Spray System · Robinson Helicopter R44 and R44 II with STC SR00286BO. Effective Apr 16, 2020
- [AD 2016-26-04](https://openairdocs.org/ad/2016-26-04): Main Rotor Blades · Robinson Helicopter R44, R44 II and R66. Effective Feb 8, 2017
- [AD 2014-23-16](https://openairdocs.org/ad/2014-23-16): Main Rotor Blades · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jan 9, 2015
- [AD 2013-05-15](https://openairdocs.org/ad/2013-05-15): Emergency floats · Robinson Helicopter R44 and R44 II. Effective Apr 30, 2013
- [AD 2010-24-03](https://openairdocs.org/ad/2010-24-03): Tail rotor · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Dec 29, 2010
- [AD 2007-11-01](https://openairdocs.org/ad/2007-11-01): Seat belt buckle (buckle) assembly · Robinson Helicopter R44 and R44 II. Effective Jun 27, 2007
- [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006
- [AD 95-26-05 R1](https://openairdocs.org/ad/95-26-05-R1): R44 Rotorcraft Flight Manual (RFM) · Robinson Helicopter R44 and R44 II. Effective Jul 6, 2004
- [AD 2003-04-05](https://openairdocs.org/ad/2003-04-05): Pitch control bearings (bearings) · Robinson Helicopter R44. Effective Mar 26, 2003
- [AD 2001-20-18](https://openairdocs.org/ad/2001-20-18): Horizontal Stabilizers · Robinson Helicopter R44. Effective Nov 19, 2001
- [AD 2000-07-03](https://openairdocs.org/ad/2000-07-03): Fuel Line Assembly · Robinson Helicopter R44. Effective May 11, 2000
- [AD 2000-08-04](https://openairdocs.org/ad/2000-08-04): Sprag Clutches · Robinson Helicopter R44. Effective May 4, 2000
- [AD 99-23-01](https://openairdocs.org/ad/99-23-01): Grip Assembly P/N A756-6 Rev. A thru 7 N · Robinson Helicopter R44. Effective Dec 8, 1999
- [AD 99-17-17](https://openairdocs.org/ad/99-17-17): Yoke Assembly · Robinson Helicopter R44. Effective Oct 7, 1999
- [AD 99-13-11](https://openairdocs.org/ad/99-13-11): Auxiliary Fuel Tank Sump Drain · Robinson Helicopter R44. Effective Jul 29, 1999
- [AD 99-07-18](https://openairdocs.org/ad/99-07-18): Sprag Clutch · Robinson Helicopter R44. Effective Apr 28, 1999
- [AD 98-22-16](https://openairdocs.org/ad/98-22-16): Main Rotor Blade Skin Fatigue Crack Inspection · Robinson Helicopter R44. Effective Nov 10, 1998
- [AD 98-04-12](https://openairdocs.org/ad/98-04-12): Lateral Cyclic Trim Spring Shaft · Robinson Helicopter R44. Effective Apr 27, 1998
- [AD 98-05-10](https://openairdocs.org/ad/98-05-10): Aluminum Elbows · Robinson Helicopter R44. Effective Mar 18, 1998
- [AD 97-16-02](https://openairdocs.org/ad/97-16-02): Up-Limit Switches · Robinson Helicopter R44. Effective Aug 18, 1997
- [AD 97-02-15](https://openairdocs.org/ad/97-02-15): Main Rotor RPM Sensor Resetting · Robinson Helicopter R44. Effective Mar 4, 1997
- [AD 96-18-22](https://openairdocs.org/ad/96-18-22): Gear Carrier Securing Bolts · Robinson Helicopter R44. Effective Oct 25, 1996
- [AD 95-11-10](https://openairdocs.org/ad/95-11-10): FAA FM - Limitations - Low-G Pushovers · Robinson Helicopter R44. Effective Jul 14, 1995
- [AD 95-09-07](https://openairdocs.org/ad/95-09-07): Cyclic Control System · Robinson Helicopter R44. Effective May 24, 1995
- [AD 94-26-10](https://openairdocs.org/ad/94-26-10): Cyclic Stick Assembly · Robinson Helicopter R44. Effective Jan 11, 1995
- [AD 2003-24-51](https://openairdocs.org/ad/2003-24-51): Main rotor swashplate · Robinson Helicopter R44 and R44 II
- [AD 2024-19-11](https://openairdocs.org/ad/2024-19-11) (historical): Engine/Transmission coupling · Robinson Helicopter R44 and R44 II. Effective Oct 31, 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 2021-19-08](https://openairdocs.org/ad/2021-19-08) (historical): Tail Rotor Blades · Robinson Helicopter R44 and R44 II. Effective Sep 22, 2021
- [AD 2019-12-18](https://openairdocs.org/ad/2019-12-18) (historical): Engine Air Intake System · Robinson Helicopter R44 II. Effective Jul 5, 2019
- [AD 2011-12-10](https://openairdocs.org/ad/2011-12-10) (historical): Main rotor blade · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jul 5, 2011
- [AD 2007-26-12](https://openairdocs.org/ad/2007-26-12) (historical): Blade skin debond · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jan 18, 2008
- [AD 95-26-05](https://openairdocs.org/ad/95-26-05) (historical): Rotorcraft Flight Manual - Limitation Section · Robinson Helicopter R44. Effective Jan 26, 1996

## Registered aircraft by registry model (OpenAirDocs)

- [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 1,381 aircraft (registry codes 7640122, 7640123)
- [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 551 aircraft (registry code 7640120)
- [Robinson Helicopter R44 ASTRO](https://openairdocs.org/model/robinson-helicopter-r44-astro): 6 aircraft (registry code 7640121)

## STCs approved under this data sheet (109, first 50)

- [STC SR12177IB](https://openairdocs.org/stc/SR12177IB): Installation of Floor Protector. Delastek Inc.
- [STC SR02420AK](https://openairdocs.org/stc/SR02420AK): Installation of the ZW Aviation LLC R44M-001 Utility Camera Mount. Gyro-Stabilized Systems LLC
- [STC SR03403CH](https://openairdocs.org/stc/SR03403CH): Installation of universal internal mount for electrical equipment provisions. STERLING HELICOPTER
- [STC SR02270AK](https://openairdocs.org/stc/SR02270AK): Manufacture cargo rack.. Larry T. Larrivee
- [STC SR02049LA](https://openairdocs.org/stc/SR02049LA): Installation of Apical Industries, Inc. Emergency Float Kits.. Apical Industries, Inc. dba Dart Aerospace
- [STC SR01980WI](https://openairdocs.org/stc/SR01980WI): Installation of Garmin GI 275 Multi-Function Instrument. Garmin International Inc.
- [STC SA01435LA](https://openairdocs.org/stc/SA01435LA): Installation of engines modified with Firewall Forward Technologies LLC modified camshaft. Centri-Lube Technologies LLC
- [STC SR00086BO](https://openairdocs.org/stc/SR00086BO): Operation of rotorcraft on unleaded and leaded automotive gasoline, 91 minimum antiknock index (RON + MON)/2 per ASTM Specification D-439 or D-4814.. Petersen Aviation Inc.
- [STC SA11137SC](https://openairdocs.org/stc/SA11137SC): Installation of Plane-Power ALT-FLX alternator. Hartzell Engine Technologies, LLC
- [STC SR02431AK](https://openairdocs.org/stc/SR02431AK): Installation of the LAM-R44 Portable Device Mount. Airglas Inc.
- [STC SR03512AT](https://openairdocs.org/stc/SR03512AT): Installation of HID Landing and Taxi Lights. Whelen Aerospace Technologies
- [STC SR00578SE](https://openairdocs.org/stc/SR00578SE): Fabrication of Onboard Systems Cargo Hook Kits Model 200-227-00 (without load weigh), Model 200-228-00 (with load weigh), Model 200-313-00 (28V, without load weigh), Model 200-314-00 (28V, with load weigh).. Onboard Systems International
- [STC SR01064SE](https://openairdocs.org/stc/SR01064SE): Fabrication of Onboard Systems Model 200-265-00  12 Volt Talon LC Keeperless cargo hook kit without load weigh, Model 200-266-00 12 Volt Talon LC Keeperless Cargo hook kit with load weigh, Model 200-288-00 28 Volt Talon LC Keeperless cargo hook kit without load weigh. Onboard Systems International LLC
- [STC SR01808SE](https://openairdocs.org/stc/SR01808SE): Installation of Onboard Systems International Cargo Hook Kit. Onboard Systems International
- [STC SR04200AT](https://openairdocs.org/stc/SR04200AT): Installation of a Sky Sign Model H-47C Electronic Billboard. SKY SIGN INC.
- [STC SR02254LA](https://openairdocs.org/stc/SR02254LA): Installation of stability augmentation system and autopilot. S-TEC Corporation
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SR02736LA](https://openairdocs.org/stc/SR02736LA): Installation of Skid Step. Longhorn Aviation Services LLC
- [STC SR02991NY](https://openairdocs.org/stc/SR02991NY): The installation of Quick Release Mounting Provisions and Quick Release Cargo Basket.. Dart Aerospace Limited
- [STC SR03297CH](https://openairdocs.org/stc/SR03297CH): Installation of provisions for external equipment. Certex Aviation LLC
- [STC SR02622SE](https://openairdocs.org/stc/SR02622SE): Installation of Garmin G500H TXi Display System (Primary Flight Display (PDF), Multi-Function Display (MFD)). Garmin International Inc
- [STC SR02363AK](https://openairdocs.org/stc/SR02363AK): Installation of a fixed mounted Max-Viz® Enhanced Vision System (EVS) Models 100/600 to include a sensor Line Replaceable Unit (LRU) with conformal housing, power supply, and a glareshield-mounted, dedicated display monitor. PECO Inc
- [STC SR04411NY](https://openairdocs.org/stc/SR04411NY): Installation of Flight and Operations Data Recorder. EIT Avionics LLC
- [STC SR04453CH](https://openairdocs.org/stc/SR04453CH): Installation of Appareo Systems LLC Stratus ES & Stratus ESG ADS-B transponder. Appareo Systems LLC
- [STC SR02124SE](https://openairdocs.org/stc/SR02124SE): Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality;. Garmin International Inc
- [STC SR02295LA](https://openairdocs.org/stc/SR02295LA): Installation of Garmin Model G500H Flight Display System. Garmin International Inc
- [STC SR02432NY](https://openairdocs.org/stc/SR02432NY): Installation of Helitowcart Bear Paw Models BP350, BP44 or BP130. Dart Aerospace Ltd.
- [STC SR02521AK](https://openairdocs.org/stc/SR02521AK): Installation of bicycle racks. Robbie Rack LLC
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.. Whelen Aerospace Technologies
- [STC SR02290AK](https://openairdocs.org/stc/SR02290AK): Manufacture tundra/snow boards, Install and maintain.. Pollux Aviation Ltd
- [STC SR03080NY](https://openairdocs.org/stc/SR03080NY): Installation of the External Power Receptacle (EGPR). Aero Design Ltd
- [STC SR00805NY](https://openairdocs.org/stc/SR00805NY): Manufacture and installation of bearpaws.. Northeast Engr & Dev Ltd
- [STC SR00387BO](https://openairdocs.org/stc/SR00387BO): Installation of Avidyne 700-00182-XXX IFD5XX and 700-00179-XXX IFD4XX Series Integrated Flight Displays (IFD). Avidyne Corporation
- [STC SR00342NY](https://openairdocs.org/stc/SR00342NY): Installation of Airwolf remote mounted engine oil filter kit AFC-8011.. Airwolf Filter Corporation
- [STC SR02660LA](https://openairdocs.org/stc/SR02660LA): Installation of Nose Utility Mount. Airfilm Camera Systems
- [STC SR02506SE](https://openairdocs.org/stc/SR02506SE): Installation of the Collective Pull Down System, installed and maintained. HeliTrak Inc
- [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems.. J P Instruments
- [STC SR09568RC](https://openairdocs.org/stc/SR09568RC): Installation of Tech Tool Plastics replacement doors with full view windows.. Tech-Tool Plastics Inc
- [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC
- [STC SR03901NY](https://openairdocs.org/stc/SR03901NY): Installation of Replacement Seat Cushion/Backrest and Interior Accessories. Ramm Aerospace Inc.
- [STC SR03879NY](https://openairdocs.org/stc/SR03879NY): Installation of Replacement Floor Covering Kits. Ramm Aerospace Inc.
- [STC SR03878NY](https://openairdocs.org/stc/SR03878NY): Installation of Replacement Headliner and Bulkhead Covering Kits. Ramm Aerospace Inc.
- [STC SR03866NY](https://openairdocs.org/stc/SR03866NY): Installation of LIDAR Anchoring System. Alevia Aeronautique Inc.
- [STC SR04124CH](https://openairdocs.org/stc/SR04124CH): Installation of Lithium Ion Main Ship Battery. Mid-Continent Instruments and Avionics
- [STC SR09868AC](https://openairdocs.org/stc/SR09868AC): Installation of Night Vision Goggle (NVG) Compatible Lighting System. Aero Dynamix Inc.
- [STC SR00840DE](https://openairdocs.org/stc/SR00840DE): Installation of the Rosen Sunvisor System into the Robinson R22. R44 and R66. Rosen Sunvisor Systems LLC
- [STC SR02206SE](https://openairdocs.org/stc/SR02206SE): Installation of Garmin G500H Avionics Display System including GDU 620 PFD/MFD, GRS 77H AHRS, GMU 44 Magnetometer, GDC 74H Air Data Computer, and GTP 59 Temperature Probe. Garmin International Inc
- [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 SR02429AK](https://openairdocs.org/stc/SR02429AK): Installation of Airglas, Inc. LTB2600 Modular Terrain System. Airglas Inc.

All 109: https://openairdocs.org/tcds/H11NM/stcs.md

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