# N894MP: 2026 Robinson Helicopter R44 - Status: Valid registration (dealer) - Airframe: Robinson Helicopter R44 (registry code 7640120, TCDS H11NM (OpenAirDocs match)) - Engine: Lycoming IO-540-AE1A5 (registry code 41899, TCDS 1E4 (OpenAirDocs match)) - Serial number: 15007 - Year built: 2026 - Type: Rotorcraft - Airworthiness: Standard, normal - Airworthiness date: August 12, 2026 - Mode S code: AC5551 - Registered owner: Robinson Helicopter Co - Location: Torrance, CA - Owner's area on the map: 33.8079° N, 118.3480° W: Placed by OpenAirDocs at the center of ZIP code 90505, within about a mile (OpenAirDocs) - Page: https://openairdocs.org/aircraft/N894MP ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs matched by airframe (Robinson Helicopter R44) (OpenAirDocs) - [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 2020-08-10](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 2003-24-51](https://openairdocs.org/ad/2003-24-51): Main rotor swashplate · Robinson Helicopter R44 and R44 II - [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 Historical (superseded or no longer in force): AD 2024-19-11, AD 2021-23-13, AD 2021-19-08, AD 2011-12-10, AD 2007-26-12, AD 95-26-05 ## ADs matched by engine (Lycoming IO-540-AE1A5) (OpenAirDocs) - [AD 2026-17-10](https://openairdocs.org/ad/2026-17-10): Reciprocating Engine Cylinder Section · Lycoming Engines O-235, O-235-A, O-235-AP and 159 more. Effective Sep 14, 2026 - [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026 - [AD 2017-16-11](https://openairdocs.org/ad/2017-16-11): Reciprocating Engine Power Section · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-360-B1G6 and 93 more. Effective Aug 15, 2017 - [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015 - [AD 2012-19-01](https://openairdocs.org/ad/2012-19-01): Crankshafts · Lycoming Engines AEIO-360-A1A, AEIO-360-A1B, AEIO-360-A1B6 and 321 more. Effective Oct 24, 2012 - [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012 - [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 2009 - [AD 2007-04-19 R1](https://openairdocs.org/ad/2007-04-19-R1): SAP cylinder assemblies · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 314 more. Effective May 7, 2007 - [AD 2005-12-06](https://openairdocs.org/ad/2005-12-06): Riveted-impulse coupling assemblies and snap-ring coupling assemblies · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 154 more. Effective Jul 19, 2005 - [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004 - [AD 2004-05-24](https://openairdocs.org/ad/2004-05-24): Zinc-plated Crankshaft Gear Retaining Bolts · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 161 more. Effective Mar 30, 2004 - [AD 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003 - [AD 2002-19-03](https://openairdocs.org/ad/2002-19-03): Crankshaft · Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5 and 81 more. Effective Sep 20, 2002 - [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997 - [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992 Historical (superseded or no longer in force): AD 2024-21-02, AD 2011-26-04, AD 2011-15-10, AD 2008-14-07, AD 2008-08-14, AD 2008-06-51, AD 2006-20-09, AD 2005-26-10 ## Information bulletins (advisory) - [SAIB 2024-05](https://openairdocs.org/saib/2024-05): Engine/Transmission Coupling, Gearmotor Assembly - [SAIB 2022-21](https://openairdocs.org/saib/2022-21): EMERGENCY FLOTATION SECTION, Pop-Out Float Under-inflation. - [SAIB AIR-22-08](https://openairdocs.org/saib/AIR-22-08): MAIN ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SYSTEM - [SAIB AIR-22-03](https://openairdocs.org/saib/AIR-22-03): Robinson Helicopter Company Model R22, R44, and R66 Helicopters; Emergency Locator Transmitter Retention - [SAIB AIR-21-14](https://openairdocs.org/saib/AIR-21-14): Robinson R44 and R66 HeliSAS Autopilot/Garmin Primary Flight Display (PFD) Interface - [SAIB AIR-21-11](https://openairdocs.org/saib/AIR-21-11): ROTORCRAFT SERVO SYSTEM (JASC 6730) - [SAIB AIR-21-03](https://openairdocs.org/saib/AIR-21-03): Electrical Power System; Ameri-King RFI DC Filter Smoke/Fire - [SAIB SW-20-01](https://openairdocs.org/saib/SW-20-01): Electrical Power System - Battery Electrolyte Leakage - [SAIB SW-15-08R1](https://openairdocs.org/saib/SW-15-08R1): Robinson R44 and R44 Main Rotor Blades - [SAIB SW-15-08](https://openairdocs.org/saib/SW-15-08): Robinson R44 Main Rotor Blades - [SAIB SW-13-11](https://openairdocs.org/saib/SW-13-11): JASC Code 2810 Fuel Storage Robinson Helicopter Company Bladder Fuel Tank Retrofit - [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System - [SAIB SW-11-15](https://openairdocs.org/saib/SW-11-15): Carbon Monoxide Detectors - [SAIB SW-09-07](https://openairdocs.org/saib/SW-09-07): JASC Code 2410 Alternator-Generator Drive, Robinson Helicopter Company Alternator Belts - [SAIB SW-07-16](https://openairdocs.org/saib/SW-07-16): Rotor blade skin debonding - [SAIB SW-06-55](https://openairdocs.org/saib/SW-06-55): - [SAIB SW-06-19](https://openairdocs.org/saib/SW-06-19): - [SAIB ASW-95-01](https://openairdocs.org/saib/ASW-95-01): - [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders - [SAIB NE-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor Idler Gear Shaft Set Screw - [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs - [SAIB NE-13-06](https://openairdocs.org/saib/NE-13-06): Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series Engines - [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines - [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft - [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32): Propeller Governor Set Screw --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.