# N220SW: 2016 Robinson Helicopter R44 II

- Status: Valid registration
- Airframe: [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii) (registry code 7640122, 4 seats)
- Engine: [Lycoming IO-540-AE1A5](https://openairdocs.org/engine/lycoming-io-540-ae1a5) (registry code 41899)
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM) (Robinson Helicopter Company), [TCDS 1E4](https://openairdocs.org/tcds/1E4) (Lycoming Engines) (OpenAirDocs)
- Serial number: 14013
- Year built: 2016
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: September 12, 2016
- Mode S code: A1E2A6
- Registered owner: [Bas Part Sales LLC](https://openairdocs.org/faa-owner/BAS%20PART%20SALES%20LLC)
- Location: [Greeley, CO](https://openairdocs.org/faa-place/CO/Greeley)
- Owner type: LLC
- Owner's area on the map: 40.4447° N, 104.6794° W: Placed by OpenAirDocs at the center of ZIP code 80631, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=220SW
- Page: https://openairdocs.org/aircraft/N220SW

From the FAA registry file of October 21, 2026. 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 that may apply (OpenAirDocs): 33 in force

### Matched by airframe (Robinson Helicopter R44 II)

- [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 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

### Matched by engine (Lycoming IO-540-AE1A5)

- [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 2024-19-11](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 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024
- [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012
- [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011
- [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008
- [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008
- [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more
- [AD 2006-20-09](https://openairdocs.org/ad/2006-20-09) (historical): Certain crankshafts replacing · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 82 more. Effective Nov 3, 2006
- [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006

## Information bulletins (advisory) (22 in force)

- [SAIB 2024-05](https://openairdocs.org/saib/2024-05): Engine/Transmission Coupling, Gearmotor Assembly. Issued Oct 29, 2024
- [SAIB 2022-21](https://openairdocs.org/saib/2022-21): EMERGENCY FLOTATION SECTION, Pop-Out Float Under-inflation.. Issued Nov 21, 2022
- [SAIB AIR-22-08](https://openairdocs.org/saib/AIR-22-08): MAIN ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SYSTEM. Issued Apr 11, 2022
- [SAIB AIR-22-03](https://openairdocs.org/saib/AIR-22-03): Robinson Helicopter Company Model R22, R44, and R66 Helicopters; Emergency Locator Transmitter Retention. Issued Mar 3, 2022
- [SAIB AIR-21-14](https://openairdocs.org/saib/AIR-21-14): Robinson R44 and R66 HeliSAS Autopilot/Garmin Primary Flight Display (PFD) Interface. Issued Aug 24, 2021
- [SAIB AIR-21-11](https://openairdocs.org/saib/AIR-21-11): ROTORCRAFT SERVO SYSTEM (JASC 6730). Issued Jul 22, 2021
- [SAIB AIR-21-03](https://openairdocs.org/saib/AIR-21-03): Electrical Power System; Ameri-King RFI DC Filter Smoke/Fire. Issued Jan 28, 2021
- [SAIB SW-15-08R1](https://openairdocs.org/saib/SW-15-08R1): Robinson R44 and R44 Main Rotor Blades. Issued Mar 31, 2015
- [SAIB SW-13-11](https://openairdocs.org/saib/SW-13-11): JASC Code 2810 Fuel Storage Robinson Helicopter Company Bladder Fuel Tank Retrofit. Issued Dec 26, 2012
- [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012
- [SAIB SW-11-15](https://openairdocs.org/saib/SW-11-15): Carbon Monoxide Detectors. Issued Jan 6, 2011
- [SAIB SW-09-36](https://openairdocs.org/saib/SW-09-36): Robinson Helicopter Company Hot Weather Operation. Issued Jun 30, 2009
- [SAIB SW-09-07](https://openairdocs.org/saib/SW-09-07): JASC Code 2410 Alternator-Generator Drive, Robinson Helicopter Company Alternator Belts. Issued Jan 30, 2009
- [SAIB SW-08-16](https://openairdocs.org/saib/SW-08-16): Air Conditioning Wiring Chafing. Issued Apr 2, 2008
- [SAIB SW-07-16](https://openairdocs.org/saib/SW-07-16): Rotor blade skin debonding. Issued Feb 9, 2007
- [SAIB SW-06-19](https://openairdocs.org/saib/SW-06-19): . Issued Dec 28, 2005
- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor  Idler Gear Shaft Set Screw. Issued May 13, 2016
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014
- [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. Issued Nov 21, 2012
- [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines. Issued Jan 10, 2009
- [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008
- [SAIB SW-15-08](https://openairdocs.org/saib/SW-15-08) (historical): Robinson R44 Main Rotor Blades. Issued Feb 23, 2015
- [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA24LA236](https://openairdocs.org/ntsb/ERA24LA236), Jun 2, 2024: Robinson R44 (N220SW), Gilbertsville, KY, substantial damage. Probable cause: The pilot's failure to maintain control of the helicopter while attempting to take off from sloping terrain.

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20240602009529A](https://openairdocs.org/incident/20240602009529A), Jun 2, 2024: Robinson Helicopter Company R44 II (N220SW), Gilbertsville, KY, Substantial damage. According to the pilot's statement, he departed from his home in carmi, IL and flew to his lake house on Kentucky lake initially landed aircraft without…
- [Incident 20220109000419I](https://openairdocs.org/incident/20220109000419I), Jan 9, 2022: Robinson Helicopter Company R44 II (N220SW), Carmi, IL, No damage. Narrative (only state facts or sequence of events that are relevant to the accident or incident) The pilot hover taxied from a parking lot to a vacant roadway…

## Service difficulty reports (48)

As reported by operators and repair stations.

- [SDR SWIA200921014](https://openairdocs.org/sdr/SWIA200921014), Feb 10, 2009: SIGN. BROKEN. FLT 5568 - EMERGENCY EXIT SIGN AT ROW 9 BROKEN. REPLACED EMERGENCY EXIT SIGN.
- [SDR SWIA200819457](https://openairdocs.org/sdr/SWIA200819457), Apr 4, 2008: FRAME. CORRODED. FOUND CORROSION AT FRAME 21 AT LOWER RIGHT SIDE. REPAIRED IAW IC2008-12/02091. 
- [SDR SWIA200819406](https://openairdocs.org/sdr/SWIA200819406), Mar 24, 2008: SMOKE DETECTOR. MALFUNCTIONED. FLT 5560 - INTERMITTENT SMOKE LIGHT WHEN TESTING CARGO SMOKE SYSTEM. REPLACED NR 2 CARGO SMOKE DETECTOR, PN 473597-13, SN/OFF 1144. 
- [SDR SWIA200718260](https://openairdocs.org/sdr/SWIA200718260), May 15, 2007: BATTERY. UNKNOWN. EMERGENCY LIGHTS CIRCUIT BREAKER POPS WITH THE SWITCH IN THE OFF POSITION. REPLACED THE FORWARD EMERGENCY LIGHT BATTERY. SYSTEM TESTS GOOD.
- [SDR SWIA200718029](https://openairdocs.org/sdr/SWIA200718029), Mar 15, 2007: COOLING FAN. SMOKE. APU BLEED AIR CAUSES PACKS TO SMOKE. REPLACED LEFT GROUND COOLING FAN. OPERATIONAL CHECKS GOOD.
- [SDR SWIA200617351](https://openairdocs.org/sdr/SWIA200617351), Sep 21, 2006: SUPPORT. CRACKED. RT UPPER INSTRUMENT PANEL SUPPORT ON AIRFRAME SIDE IS CRACKED, DISCOVERED DURING C-CHECK INSPECTION. REPLACED RT UPPER INSTRUMENT PANEL SUPPORT BRACKET ON AIRFR
- [SDR SWIA200617350](https://openairdocs.org/sdr/SWIA200617350), Sep 21, 2006: MOUNT. CORRODED. SEAT TRACK FOR FWD GALLEY MOUNT CORRODED, DISCOVERED DURING C-CHECK INSPECTION. REPLACED SEAT TRACK SECTION WITH NEW.
- [SDR SWIA200617349](https://openairdocs.org/sdr/SWIA200617349), Sep 21, 2006: PITOT TUBE. CORRODED. BOTH RT PITOT TUBE HAVE EXCESSIVE CORROSION, DISCOVERED DURING C-CHECK INSPECTION. REPLACED BOTH RT PITOT TUBES. OPERATIONAL CHECKS GOOD.
- [SDR SWIA200617196](https://openairdocs.org/sdr/SWIA200617196), Sep 20, 2006: WIRE. BROKEN. EMERGENCY EXIT SIGN OVER SEAT 9B INOP. REPAIRED BROKEN WIRE IN OVERHEAD LIGHT. OPERATIONAL CHECKS GOOD.
- [SDR SWIA200515920](https://openairdocs.org/sdr/SWIA200515920), Nov 10, 2005: BATTERY PACK. DISCHARGED. EMERGENCY LIGHTS WILL NOT TEST. REPLACED 3 ELBP'S. OPERATIONAL CHECK GOOD, FWD SN 059 OFF; MID SN 1161 OFF; AFT SN 1035 OFF.
- [SDR SWIA200515644](https://openairdocs.org/sdr/SWIA200515644), Oct 1, 2005: SELECTOR. MALFUNCTIONED. DURING CRUISE FLIGHT AT FL220 FLAP CONTROL FAULT O/B FLAP SECOND LIGHT SEGMENT FLASHING. REPLACED FCU AND FLAP CONTROL HANDLE ASSY, OPERATIONAL CHECK GOOD. P/N:
- [SDR SWIA200515442](https://openairdocs.org/sdr/SWIA200515442), Aug 14, 2005: LAMP. BURNED OUT. EMERGENCY LIGHTS BY MCD OUT. INSTALLED SERVICEABLE LAMP. OPERATIONAL CHECK GOOD.
- [SDR SWIA200515362](https://openairdocs.org/sdr/SWIA200515362), Aug 1, 2005: WIRE. BROKEN. EMERGENCY EXIT SIGN OVER ROW 9 INOP. REPAIRED BROKEN WIRE AT ROW 9 EMERGENCY LIGHT. OPERATIONAL CHECK GOOD.
- [SDR SWIA200514544](https://openairdocs.org/sdr/SWIA200514544), Feb 11, 2005: HANDLE. MALFUNCTIONED. ON DEPARTURE, FLAPS DID NOT FULLY RETRACT. REPLACED FLAP HANDLE. OPERATIONAL CHECK GOOD.
- [SDR SWIA200514543](https://openairdocs.org/sdr/SWIA200514543), Feb 9, 2005: CONNECTOR. LOOSE. FOUR FLOOR LEVEL EMERGENCY LIGHTS OUT. RECONNECTED LIGHT CONNECTOR UNDER FLOOR AT SEAT 3A, OPERATIONAL CHECKS NORMAL.
- [SDR SWIA200414290](https://openairdocs.org/sdr/SWIA200414290), Dec 19, 2004: CONTROL MODULE. MALFUNCTIONED. LEFT FIRE PIPE ZONE LIGHT FLICKERED AFTER GEAR EXTENSION. REPLACED LEFT WHEEL WELL ENGINE DETECTION CONTROL MODULE. OPERATIONAL CHECKS GOOD.
- [SDR SWIA200413086](https://openairdocs.org/sdr/SWIA200413086), Mar 24, 2004: AHRS. MALFUNCTIONED. CAPTAIN'S AUTOPILOT FAILED FFOD CHECK AND COMPUTER FLAG STAYS IN VIEW. INSPECTED APC NR 1, NR 1 AHRS AND ADI NR 1 WIRING AND CONNECTORS. NO DEFECTS NOTED. CONTI
- [SDR SWIA200312608](https://openairdocs.org/sdr/SWIA200312608), Nov 11, 2003: POWER SUPPLY. FAILED. F/A REPORTS THAT 3 TIMES DURING THE FLIGHT SOME OF THE EMERGENCY LIGHTS ILLUMINATED FOR 30-60 SEC BEFORE GOING OUT. NO ABNORMAL INDICATIONS IN THE COCKPIT. REPL
- [SDR SWIA200312370](https://openairdocs.org/sdr/SWIA200312370), Sep 2, 2003: TIRE. BLOWN. ALL 4 MAIN TIRES BLEW ON LANDING. REMOVED AND REPLACED ALL 4 MLG WHEEL ASSY'S PER MM 32-44-02 AND C/W ST12-311. P/N: 3-1446-1, NR 1 S/N ON: 0966, S/N OFF: 1789,
- [SDR SWIA200312067](https://openairdocs.org/sdr/SWIA200312067), Apr 24, 2003: SKIN. CRACKED. ANGLE BEHIND CAPTAIN'S DV WINDOW CUTOUT CRACKED. DISCOVERED DURING C-CHECK. REPLACED BRACKET IAW SRM 120 51-10-02.
- [SDR SWIA200312066](https://openairdocs.org/sdr/SWIA200312066), Apr 24, 2003: FRAME. CRACKED. AT FRAME 13, BELOW FLOOR COCKPIT ENTRY DOOR, BOTH FRAME DOUBLERS CRACKED. DISCOVERED DURING C-CHECK. DOUBLERS APPLIED TO AREAS MENTIONED IAW SRM 120 51-10-02.
- [SDR SWIA200312065](https://openairdocs.org/sdr/SWIA200312065), Apr 24, 2003: BRACKET. CRACKED. RIGHT INBOARD LOWER FLAPWELL, INBOARD ROLLER BRACKET CRACKED. DISCOVERED DURING C-CHECK. REPLACED AFFECTED BRACKET IAW EMB120 SRM 51-10-02.
- [SDR SWIA200311893](https://openairdocs.org/sdr/SWIA200311893), Apr 2, 2003: SERVO. BINDING. RUDDER PEDALS MAKE A LOUD GRINDING NOISE WHEN THEY ARE MOVED. REMOVED RUDDER TO INSPECT. FOUND SERVO TO MAKE GRINDING NOISE AND ALSO FOUND IT TO BE BINDING. REP
- [SDR SWIA200211482](https://openairdocs.org/sdr/SWIA200211482), Nov 16, 2002: BATTERY PACK. DISCHARGED. AFT SECTION OF CABIN EMERGENCY LIGHTS ARE INOP. INSTALLED SERVICEABLE BATTERY PACK. OPS CHECK GOOD.
- [SDR SWIA200210802](https://openairdocs.org/sdr/SWIA200210802), Apr 20, 2002: WIRE. BROKEN. FLAP CONTROL FAULT ON FLAP INDICATOR PANEL AND FLAP/ADVANCED STALL WARNING ON MAP. ABORTED TAKEOFF. REPAIRED BROKEN WIRE AT NR 8 PIN ON LEFT OUTBOARD ACTUATOR. 
- [SDR SWIA200210760](https://openairdocs.org/sdr/SWIA200210760), Mar 27, 2002: BATTERY PACK. DISCHARGED. EMERGENCY LIGHTS AT ROW 6 AND FLOOR LIGHTING AT ROWS 3, 4 & 5 ARE INOPERATIVE. REPLACED CENTER BATTERY PACK PER 33-50-00. OPS CHECK GOOD.
- [SDR SWIA200110381](https://openairdocs.org/sdr/SWIA200110381), Nov 19, 2001: WIRE. BROKEN. ON TAXI OUT FLAP CONTROL FAULT INDICATION OCCURRED UPON FLAP DEPLOYMENT TO 15 DEGREES. LEFT LVDT FLR ON ANNUNCIATOR OUTBOARD PAIR. FOUND BROKEN WIRE AND REPAIRE
- [SDR SWIA200110078](https://openairdocs.org/sdr/SWIA200110078), Aug 3, 2001: FUSE. FAILED. FOUR FLOOR EMERGENCY LIGHTS OUT BY ROW 8.INSTALLED SERVICEABLE FUSE. OPS CHECK GOOD.
- [SDR SWIA972494](https://openairdocs.org/sdr/SWIA972494), Apr 8, 2001: ACTUATOR. FAILED. AT 21,000 AILERON TRIM WAS FOUND TO BE JAMMED. OAT WAS -10C DEGREES. AFTER LANDING THE TRIM SEEMED TO BE OPERATIONAL AGAIN. REPLACED AILERON TRIM TAB ACTUATOR I
- [SDR SWIA971754](https://openairdocs.org/sdr/SWIA971754), Apr 5, 2000: VALVE. FAILED. BLUE SYSTEM LOW PRESS LIGHT ILLUMINATED AFTER TAKEOFF. RETURNED TO PDX. REPLACED MOISTURE PURGE VALVE IAW MM 29-14-00, OPS CHECK GOOD.
- [SDR SWIA971707](https://openairdocs.org/sdr/SWIA971707), Feb 24, 2000: PEDEL. STUCK. AFTER TAKEOFF, ATTEMPTED TO USE RIGHT RUDDER AND RUDDER PEDAL, COULD NOT BE MOVED FOR RIGHT RUDDER DEFLECTION MORE THAN ABOUT 12. RETURNED TO YUM. DURING RETURN
- [SDR SWIA971680](https://openairdocs.org/sdr/SWIA971680), Feb 1, 2000: SENSOR. OUT OF POSITION. DURING CLIMB AT 2000 MSL, A TRIPLE CHIME SOUNDED FOLLOWED BY A DUCT LEAK AURAL WARNING. APU DUCT LEAK LIGHT WAS ILLUMINATED AS WAS THE DUCT LEAK LIGHT ON THE MA
- [SDR SWIA971636](https://openairdocs.org/sdr/SWIA971636), Dec 26, 1999: SEQUENCE VALVE. FAILED. RIGH MAIN LANDING GEAR DID NOT RETRACT AFTER TAKEOFF. RETURNED TO FAT. REPLACED AND ADJUSTED RIGHT MAIN LANDING GEAR SEQUENCE VALVES. OPS CHECKS GOOD ON GROUND.
- [SDR SWIA971635](https://openairdocs.org/sdr/SWIA971635), Dec 25, 1999: ACTUATOR. FAILED. RIGHT MLG WILL NOT RETRACT AFTER TAKEOFF. RETURNED TO FAT. REMOVED AND REPLACED RIGHT MAIN GEAR ACTUATOR, PERFORMED GEAR SWING.
- [SDR SWIA971391](https://openairdocs.org/sdr/SWIA971391), Feb 9, 1999: SELECTOR. FAILED. FLAPS WOULD NOT RETRACT AFTER TAKEOFF (DISAGREEMENT). RETURNED TO LAX. REPLACED FLAP SELECTOR WITH SERVICEABLE UNIT. OPERATED NUMEROUS TIMES, OPS CHECK GOOD.
- [SDR SWIA971425](https://openairdocs.org/sdr/SWIA971425), Feb 5, 1999: VALVE. FAILED. RIGHT AND LEFT MIDDLE WING DEICE BOOTS FAILED DURING CLIMBOUT (FIRST FLIGHT CHECKS ON GROUND PRIOR TO FLIGHT OPERATION NORMALLY). RETURNED TO SFO. REPLACED RIGH
- [SDR SWIA971305](https://openairdocs.org/sdr/SWIA971305), Oct 16, 1998: BOOT. FAILED. RIGHT ENGINE AIR INLET DEICE FAILED IN FLIGHT. RETURNED TO FIELD BECAUSE OF ICING IN AREA. REPLACED RIGHT ENGINE AIR INLET DEICE BOOT PRESSURE SWITCH. OPS CHECK
- [SDR SWIA971201](https://openairdocs.org/sdr/SWIA971201), May 9, 1998: SEAT TRACK. CORRODED. CORROSION ON SEAT TRACK NEAR GALLEY AREA. REMOVED CORRODED PORTION OF SEAT TRACK AND FABRICATED NEW LEFT SEAT TRACK NEAR GALLEY AREA.
- [SDR SWIA971200](https://openairdocs.org/sdr/SWIA971200), May 9, 1998: SEAT TRACK. CORRODED. CORROSION ON SEAT TRACK NEAR LAV AREA. REPLACED SEAT TRACK AS REQUIRED.
- [SDR SWIA971199](https://openairdocs.org/sdr/SWIA971199), May 9, 1998: SILL. CORRODED. RIGHT SIDE FORWARD HAS CORROSION. INSTALLED RIGHT SIDE FORWARD WITH NEW SILL IAW SRM 51-40-00.
- [SDR SWIA971103](https://openairdocs.org/sdr/SWIA971103), Mar 9, 1998: ROLLERS. LACK OF LUBE. DEPARTED LAX, UPON FLAP RETRACTION FLAP DISAGREEMENT OCCURRED, SLIGHT ROLL WAS FELT DURING RETRACTION. FOLLOWED QRH INSTRUCTIONS, DID NOT SOLVE. RETURNED TO LAX
- [SDR SWIA971089](https://openairdocs.org/sdr/SWIA971089), Feb 23, 1998: ACTUATOR. DIRTY. TRIM WHEEL FROZEN IN FLIGHT, WHICH KICKED AUTO PILOT OFF DUE TO TRIM FAILURE. DESCENDED TO LOWER ALTITUDE WHERE TRIM RETURNED TO NORMAL OPERATION. CLEANED AUTO 
- [SDR SWIA97998](https://openairdocs.org/sdr/SWIA97998), Sep 8, 1997: INDICATION. MALFUNCTIONED. AFTER TAKEOFF UPON FLAP RETRACTION, THERE WAS A FLAP DISAGREEMENT INBOARD PAIR. THE CHECK LIST WAS ACCOMPLISHED AND THE FLAPS AGAIN DISAGREED SO WE RETURNED TO 
- [SDR SWIA97925](https://openairdocs.org/sdr/SWIA97925), Sep 2, 1997: REGULATOR. FAILED. AFTER TAKEOFF, LEFT DUCT LEAK LIGHT CAME ON AND CABIN PRESSURE WAS LOST. RETURNED TO PSP. LIGHT STAYED ON WITH ENGINE SHUT DOWN. REPLACED LEFT 18 PSI REGULATOR,
- [SDR SWIA97891](https://openairdocs.org/sdr/SWIA97891), Apr 30, 1997: INVERTER. FAILED. AFTER TAKEOFF BOTH AHRS SHOWED GYRO AND COMPUTER FLAGS. NR 1 ADI CIRCUIT BREAKER OPENED. RETURNED FOR LANDING. AFTER LANDING, GYRO FLAGS DISAPPEARED BUT COMPUTE
- [SDR SWIA97821](https://openairdocs.org/sdr/SWIA97821), Jan 8, 1997: ACTUATOR. FAILED. IN CRUISE, ADVANCE STALL WARNING AND FLAP CONTROL FAULT LIGHTS ILLUMINATE. COULD NOT RESET. NACELLE FLAPS SHOW A PAIR OF LIGHT BARS FLASHING. RETURNED TO SLC. R
- [SDR SWIA97819](https://openairdocs.org/sdr/SWIA97819), Jan 7, 1997: FLAP CONTL COMP. FAILED. FLAP CONTROL FAULT LIGHT AND ADVANCED STALL WARNING LIGHT ILLUMINATED IN CRUISE FLIGHT, WOULD NOT RESET. REMOVED AND REPLACED FLAP CONTROL COMPUTER IAW MM 27-50
- [SDR SWIA95674](https://openairdocs.org/sdr/SWIA95674), Nov 6, 1995: REGULATOR VLV. MALFUNCTIONED. DUCT LEAKAGE LIGHT ILLUMINATED IN FLIGHT, PROCEEDED WITH ENGINE SHUTDOWN. FOUND GASKET NR 2 ENGINE BLOWN ON RT SIDE OF 18 PSI REGULATOR FOR DE-ICE SYSTEM. REPLA

## Related

- Other Robinson Helicopter R44 II aircraft: https://openairdocs.org/model/robinson-helicopter-r44-ii/aircraft.md
- STCs for the Robinson Helicopter R44 II: https://openairdocs.org/model/robinson-helicopter-r44-ii/stcs.md
- The Lycoming IO-540-AE1A5 engine: https://openairdocs.org/engine/lycoming-io-540-ae1a5.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.