# Sikorsky S-61L

- Type: Aircraft model (FAA registry)
- Registry code: 8142102
- Manufacturer (registry): SIKORSKY
- Model: S-61L
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 2 · Turbo-shaft
- Seats: 28
- Weight class: 12,500 to 19,999 lb
- Cruise speed: 109 mph
- Certification: Type certificated
- Data sheet: [TCDS 1H15](https://openairdocs.org/tcds/1H15) (OpenAirDocs)
- Holder: Sikorsky Aircraft
- Registered aircraft: 1
- Page: https://openairdocs.org/model/sikorsky-s-61l

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2026-15-17](https://openairdocs.org/ad/2026-15-17): Main Rotor Gearbox · Glacier Helicopter CH-3E, S-61A, S-61D and 12 more. Effective Sep 10, 2026
- [AD 2026-11-05](https://openairdocs.org/ad/2026-11-05): Rotorcraft flight control; Rotorcraft servo system · Carson Helicopters S-61L, SH-3H, CH-3E and 11 more. Effective Jul 9, 2026
- [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 2021-10-16](https://openairdocs.org/ad/2021-10-16): Engine/Transmission Coupling · Carson Helicopters S-61L, SH-3H, SH-3H and 6 more. Effective Jul 1, 2021
- [AD 2021-05-19](https://openairdocs.org/ad/2021-05-19): Tail Rotor Control System · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective May 7, 2021
- [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 2013-05-17](https://openairdocs.org/ad/2013-05-17): Aircraft Fuel Filter/Strainer · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Apr 26, 2013
- [AD 2007-01-05](https://openairdocs.org/ad/2007-01-05): Main gearbox input left and right freewheel unit (IFWU) assembly · Sikorsky S-61L, S-61N, S-61NM and 1 more. Effective Feb 14, 2007
- [AD 2004-15-22](https://openairdocs.org/ad/2004-15-22): Bearing chip detector · Sikorsky S-61L, S-61N, S-61NM and 1 more. Effective Sep 7, 2004
- [AD 2002-20-05](https://openairdocs.org/ad/2002-20-05): Rescue hoists · Agusta A109, A109A, A109A II and 31 more. Effective Nov 7, 2002
- [AD 2000-13-06](https://openairdocs.org/ad/2000-13-06): Web Fittings · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Jul 18, 2000
- [AD 98-26-02](https://openairdocs.org/ad/98-26-02): Shaft · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Jan 20, 1999
- [AD 97-19-06](https://openairdocs.org/ad/97-19-06): Blade Trailing Edge Pocket Assemblies · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Oct 6, 1997
- [AD 91-12-01](https://openairdocs.org/ad/91-12-01): Sleeve & Spindle Assemblies · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Jul 8, 1991
- [AD 90-01-04](https://openairdocs.org/ad/90-01-04): Main Rotor Hub Upper Plate · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Feb 5, 1990
- [AD 89-07-09](https://openairdocs.org/ad/89-07-09): Main Rotor Gearbox · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Apr 20, 1989
- [AD 85-18-05 R2](https://openairdocs.org/ad/85-18-05-R2): Main Rotor Blades · Sikorsky S-61A, S-61L, S-61N and 3 more. Effective Feb 8, 1989
- [AD 87-15-11](https://openairdocs.org/ad/87-15-11): Gearbox Brackets · Sikorsky S-61A, S-61L, S-61N and 3 more. Effective Aug 10, 1987
- [AD 86-23-08](https://openairdocs.org/ad/86-23-08): Main Rotor Hub Lower Plate · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Apr 21, 1987
- [AD 84-25-01](https://openairdocs.org/ad/84-25-01): Main Gearbox Inspection · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Jan 19, 1985
- [AD 84-11-03](https://openairdocs.org/ad/84-11-03): Possible Flange Failure · Sikorsky S-61A, S-61L and S-61N. Effective Jun 6, 1984
- [AD 84-01-51](https://openairdocs.org/ad/84-01-51): Rotary Wing Head Shaft Nut · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Mar 27, 1984
- [AD 74-20-07 R5](https://openairdocs.org/ad/74-20-07-R5): Main Rotor Blades · Sikorsky S-61A, S-61L, S-61N and 3 more. Effective Dec 30, 1983
- [AD 78-20-05 R4](https://openairdocs.org/ad/78-20-05-R4): Main Rotor Spindles · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective May 25, 1983
- [AD 76-08-01 R1](https://openairdocs.org/ad/76-08-01-R1): Tail Rotor Pylon · Sikorsky S-61A, S-61D, S-61E and 2 more. Effective Dec 29, 1980
- [AD 80-17-07](https://openairdocs.org/ad/80-17-07): Horizontal Hinge Pins · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Aug 15, 1980
- [AD 74-20-09](https://openairdocs.org/ad/74-20-09): Main Rotor Blades · Sikorsky S-61A, S-61L, S-61N and 2 more. Effective Feb 25, 1977
- [AD 76-06-01](https://openairdocs.org/ad/76-06-01): Hydraulic Pumps · Erickson Air-Crane S-64A, S-64E, S-64F and 12 more. Effective Mar 24, 1976
- [AD 76-03-02](https://openairdocs.org/ad/76-03-02): Fractures in Barrel Nuts · Sikorsky S-61L, S-61N, S-61NM and 1 more. Effective Feb 17, 1976
- [AD 75-26-10](https://openairdocs.org/ad/75-26-10): Component Replacement · Sikorsky S-61L, S-61N and S-61NM. Effective Jan 2, 1976
- [AD 68-19-07](https://openairdocs.org/ad/68-19-07): Rotor Blade Spindles · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Dec 23, 1975
- [AD 75-17-33](https://openairdocs.org/ad/75-17-33): Baggage Doors · Sikorsky S-61L, S-61N and S-61NM. Effective Oct 3, 1975
- [AD 75-12-01](https://openairdocs.org/ad/75-12-01): Main Rotor Blades · Sikorsky S-61L, S-61N, S-61NM and 1 more. Effective Jun 12, 1975
- [AD 74-25-05](https://openairdocs.org/ad/74-25-05): Main Rotor Blades · Sikorsky S-61L, S-61N, S-61NM and 1 more. Effective Nov 6, 1974
- [AD 74-25-06](https://openairdocs.org/ad/74-25-06): Takeoff Gross Weight Limitation · Sikorsky S-61L, S-61N and S-61NM. Effective Oct 16, 1974
- [AD 73-15-01](https://openairdocs.org/ad/73-15-01): Rear Fuselage and Pylon Fittings · Sikorsky S-61A, S-61D, S-61E and 2 more. Effective Jul 27, 1973
- [AD 72-25-04](https://openairdocs.org/ad/72-25-04): Loss of Main Rotor Control · Sikorsky S-61A, S-61D, S-61L and 3 more. Effective Dec 15, 1972
- [AD 72-16-06](https://openairdocs.org/ad/72-16-06): Electrical Feeder Wire Gage · Sikorsky S-61A, S-61L, S-61N and 1 more. Effective Aug 10, 1972
- [AD 72-03-01](https://openairdocs.org/ad/72-03-01): Alum. Forgings Flight Control System · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Feb 1, 1972
- [AD 71-21-03](https://openairdocs.org/ad/71-21-03): Link in Servo Valve Input Linkage · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Oct 7, 1971
- [AD 71-05-01](https://openairdocs.org/ad/71-05-01): Main Landing Gear Axle · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Feb 23, 1971
- [AD 68-20-08](https://openairdocs.org/ad/68-20-08): Functional Test of AFCS · Sikorsky S-61A, S-61L and S-61N. Effective Jan 14, 1971
- [AD 70-15-01](https://openairdocs.org/ad/70-15-01): Cabin Heater Blower · Sikorsky S-61A, S-61L, S-61N and 1 more. Effective Jul 22, 1970
- [AD 70-09-03](https://openairdocs.org/ad/70-09-03): Tail Gear Box Pitch Beams · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective May 8, 1970
- [AD 70-08-03](https://openairdocs.org/ad/70-08-03): Heater Inlet Check Valve · Sikorsky S-61A, S-61L, S-61N and 1 more. Effective Mar 17, 1970
- [AD 68-21-06](https://openairdocs.org/ad/68-21-06): Deactivate AFCS · Sikorsky S-61A, S-61L and S-61N. Effective Oct 24, 1968
- [AD 67-29-05](https://openairdocs.org/ad/67-29-05): Rotary Wing Hub Hinge Pins · Sikorsky S-61A, S-61D, S-61E and 5 more. Effective Oct 30, 1967
- [AD 66-19-04](https://openairdocs.org/ad/66-19-04): Tail Rotor Blades · Sikorsky S-58A, S-58B, S-58BT and 20 more. Effective Aug 14, 1966
- [AD 65-08-02](https://openairdocs.org/ad/65-08-02): Main Rotor Blades · Orlando Helicopter Airways HRS-1/CH-19, HRS-3/H-19B, S-55 and 11 more. Effective Apr 9, 1965

Historical (superseded or no longer in force):

- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021
- [AD 2015-20-12](https://openairdocs.org/ad/2015-20-12) (historical): Main Rotor Gearbox · Carson Helicopters SH-3H, SH-3H, CH-3E and 13 more. Effective Nov 24, 2015
- [AD 97-10-04](https://openairdocs.org/ad/97-10-04) (historical): Blade Trailing Edge Pocket Assemblies · Sikorsky S-61A, S-61D, S-61E and 5 more

All 56: https://openairdocs.org/model/sikorsky-s-61l/ads.md

## Registered aircraft (1)

- [N620CK](https://openairdocs.org/aircraft/N620CK): [Croman Corp](https://openairdocs.org/faa-owner/CROMAN%20CORP), [White City, OR](https://openairdocs.org/faa-place/OR/White%20City), S/N 61362

## NTSB investigations (9)

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

- [NTSB WAS02WA049](https://openairdocs.org/ntsb/WAS02WA049), Aug 8, 2002: Sikorsky S-61L (N346AA), Prince George, Canada, substantial damage
- [NTSB SEA84FA048](https://openairdocs.org/ntsb/SEA84FA048), Feb 5, 1984: Sikorsky S-61L (N6981R), Medford, OR, destroyed, 1 fatal
- [NTSB DCA79FA014](https://openairdocs.org/ntsb/DCA79FA014), Apr 18, 1979: Sikorsky S61-L (N618PA), Newark, NJ, substantial damage, 3 fatal
- [NTSB DCA77AA006](https://openairdocs.org/ntsb/DCA77AA006-80103), May 16, 1977: Sikorsky S-61L (N619PA), New York, NY, substantial damage, 4 fatal
- [NTSB NYC70AN095](https://openairdocs.org/ntsb/NYC70AN095), Mar 4, 1970: Sikorsky S-61L (N618PA), Flushing, NY, substantial damage
- [NTSB DCA69A0003](https://openairdocs.org/ntsb/DCA69A0003), Aug 14, 1968: Sikorsky S-61L (N300Y), Compton, CA, destroyed, 21 fatal
- [NTSB DCA68A0006](https://openairdocs.org/ntsb/DCA68A0006), May 22, 1968: Sikorsky S-61L (N303Y), Paramount, CA, destroyed, 23 fatal
- [NTSB LAX66A0080](https://openairdocs.org/ntsb/LAX66A0080), Apr 29, 1966: Sikorsky S-61L (N300Y), Los Angeles, CA, substantial damage
- [NTSB LAX64A0002](https://openairdocs.org/ntsb/LAX64A0002), Jul 15, 1963: Sikorski S-61L (N300Y), Los Angeles, CA, substantial damage

## FAA accident and incident reports (1)

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

- [Accident 19840205002989A](https://openairdocs.org/incident/19840205002989A), Feb 5, 1984: Skrsky S61L (N6981R), Medford, OR, Destroyed. Helicopter blades hit hangar during taxi for takeoff. Main rotor blade separated and struck cabin.

## Service difficulty reports (4)

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

- [SDR CA110721010](https://openairdocs.org/sdr/CA110721010), Jul 21, 2011: HOSE. MISMANUFACTURED. NEW FUEL HOSES WITH INTERNAL METAL CONTAMINATION. LOT NUMBERS WERE 500517 AND 35178. THESE ARE THE LARGE DIAMETER MAIN FUEL FEED LINES FROM THE FUEL TANKS DIREC
- [SDR CA060818006](https://openairdocs.org/sdr/CA060818006), Aug 17, 2006: BOLT. BROKEN. (CAN) THE HYDRAULIC PUMP WAS BEING REMOVED FOR MAINTENANCE PLANNING, WHEN 2 BOLT HEADS WERE FOUND TO BE SHEARED OFF, AND HELD IN PLACE BY THE LOCK WIRE. PUMP WI
- [SDR CA060608011](https://openairdocs.org/sdr/CA060608011), May 18, 2006: COVER. CRACKED. MAIN GEAR BOX WAS BEING REMOVED FOR INPUT FREEWHEEL REPLACEMENT. A CRACK WAS DETECTED ON THE RT FOOT OF REAR COVER, AS WELL AS A CRACK ON THE RT REAR AIRFRAME F
- [SDR CA060322003](https://openairdocs.org/sdr/CA060322003), Mar 14, 2006: COMBUSTION CASE. CRACKED. (CAN) THE PILOT NOTICED A GRADUALLY INCREASING ENGINE OIL PRESSURE, AND T5, ALONG WITH DECREASING OIL PRESSURE. AFTER SHUTDOWN, THE ENGINE WAS INSPECTED, AND A 

## STCs that may be installed (OpenAirDocs) (69, first 50)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SR04465NY](https://openairdocs.org/stc/SR04465NY): Installation of the iPad Mount. Avio Design Group Inc
- [STC SR00218IB](https://openairdocs.org/stc/SR00218IB): Installation of the Cockpit Door. Croman Corporation
- [STC SR00220IB](https://openairdocs.org/stc/SR00220IB): Installation of Replacement Avionics Shelves. Croman Corporation
- [STC SR00283SE](https://openairdocs.org/stc/SR00283SE): Removal of a 50 inch section from the forward fuselage between stations 110 and 160 and reinstallation of forward cabin with associated fabricated parts. Croman Corporation
- [STC SR00814SE](https://openairdocs.org/stc/SR00814SE): Fabrication of reinforcement kit - aft fuselage station 493. For model S61A, applies to S/N 61094. For model S61NM, applies to S/N 66454. Croman Corporation
- [STC SR01264SE](https://openairdocs.org/stc/SR01264SE): Fabrication of Helipro replacement windshields. Croman Corporation
- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SR02279AK](https://openairdocs.org/stc/SR02279AK): Installation of dual Rockwell Collins FDS 2000 flight displays, dual AHS 3000 attitude and heading reference systems, dual Garmin GNS 530 navigation systems and supporting avionics equipment. Croman Corporation
- [STC SR09236RC](https://openairdocs.org/stc/SR09236RC): Installation of a Modular Harness. Croman Corporation
- [STC SR04501CH](https://openairdocs.org/stc/SR04501CH): The certification of various configurations of cockpit side windows. CHI Aviation
- [STC SR01127SE](https://openairdocs.org/stc/SR01127SE): Modification of main rotor blade part number 61170-20201 in accordance with Master Drawing List RR 9633-08, Revision A, dated September 17, 2002, or later FAA approved revision. Retirement life for the modified main rotor blade, part number RR-61170-20201 is 21,200 total time in service. Park Technologies, LLC
- [STC SR09490RC](https://openairdocs.org/stc/SR09490RC): Installation of nine passenger seat configuration. McHenry Priestley Aviation LLC
- [STC SR04607NY](https://openairdocs.org/stc/SR04607NY): Installation of Garmin GTX Transponder System. Maxcraft Avionics Ltd
- [STC SR04609NY](https://openairdocs.org/stc/SR04609NY): Installation of Garmin HTAWS (Helicopter Terrain Awareness Warning System). Maxcraft Avionics Ltd
- [STC SR04483CH](https://openairdocs.org/stc/SR04483CH): Installation of NASI NREM18M Air Conditioning Module. National Aircraft Service Inc. (NASI)
- [STC SR00925DE](https://openairdocs.org/stc/SR00925DE): Installation of Garmin GTX 335/335R and GTX345/345R transponders to provide ADS-B Out and In functionality. Peregrine
- [STC SR02487NY](https://openairdocs.org/stc/SR02487NY): Increased Category A Performance for the Sikorsky S-61L, S-61N and S-61NM Helicopters. Carson Helicopters, Inc
- [STC SR03324NY](https://openairdocs.org/stc/SR03324NY): One Helicopter-only conversion of Sikorsky Model S-61L S/N 61428 to an S-61N configuration. Carson Helicopters, Inc
- [STC SR02507NY](https://openairdocs.org/stc/SR02507NY): Installation of a 600 pound capacity Goodrich AC rescue hoist system P/N 44311-10-2. Carson Helicopters, Inc
- [STC SR02267SE](https://openairdocs.org/stc/SR02267SE): Fabrication of replacement transmission fittings. Croman Corporation
- [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 SR03310CH](https://openairdocs.org/stc/SR03310CH): Installation of NASI Air Conditioning Module. National Aircraft Service Inc
- [STC SR02501LA](https://openairdocs.org/stc/SR02501LA): Removal of the Bendix 30E20-11-C 300 Amp Starter Generator and installation of the AMETEK Aerospace MG105A-1, 300 Amp Starter Generator. Carson Helicopters, Inc
- [STC SR01426SE](https://openairdocs.org/stc/SR01426SE): Fabrication and installation of components for a left seat pilot-in-command operation. Croman Corporation
- [STC SR00319SE](https://openairdocs.org/stc/SR00319SE): Modification of Part Number S6137-23009-6 main transmission rear cover per. Croman Corporation
- [STC SR01534SE](https://openairdocs.org/stc/SR01534SE): Installation of the transmission input modification to the main gear box. Croman Corporation
- [STC SR01853NY](https://openairdocs.org/stc/SR01853NY): Installation of a SkyTrac ISAT-100 / ISAT-200 Airborne Position/Data Communicator. SkyTrac Systems Ltd
- [STC SR09232RC](https://openairdocs.org/stc/SR09232RC): Installation of a ground inverter. Vector Aerospace Helicopter Services USA Inc
- [STC SR09233RC](https://openairdocs.org/stc/SR09233RC): Installation of a Solid State Voltage Regulator. Vector Aerospace Helicopter Services USA Inc
- [STC SR02335AK](https://openairdocs.org/stc/SR02335AK): Installation of two or three tank fuel quantity indicating systems when installed. Carson Helicopters, Inc
- [STC SR02336AK](https://openairdocs.org/stc/SR02336AK): Installation of an Integrated Cockpit Display System (ICDS) with an Attitude and Heading Reference System (AHRS) for Dual Pilot Instrument Flight Rules Category A and B operation in accordance with Vector Aerospace Helicopter Services Inc. Master Drawing List , HP 61-34-33-105, Revision A, dated February 28, 2011, or later FAA approved revision. Carson Helicopters, Inc
- [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc
- [STC SR01585NY](https://openairdocs.org/stc/SR01585NY): Installation of Carson Helicopters, Inc. composite main rotor blades, P/N 163-101-1. Carson Helicopters Inc
- [STC SR02672NY](https://openairdocs.org/stc/SR02672NY): Installation of the dual Garmin GNS-430 COM/NAV/GPS, dual GAD-42 Adapter, GTX 330 Transponder, Skywatch 497 Traffic Advisory, Artex 406HM ELT, and Garmin GMX-200 MFD. VIH Aerospace Inc
- [STC SR02382NY](https://openairdocs.org/stc/SR02382NY): Increase of Out of Ground Effect (OGE) and In Ground Effect (IGE) Hover Performance for the Sikorsky S-61L, S-61N and S-61NM Helicopters. Carson Helicopters Inc
- [STC SR02522NY](https://openairdocs.org/stc/SR02522NY): Installation of a Collective Friction Lock. Cougar Helicopters Inc
- [STC SR02471NY](https://openairdocs.org/stc/SR02471NY): Installation of Diamond-J 61000-(103, 104) Power Turbine Inlet Temperature T5 Indicators (TIT). VIH Aerospace Inc
- [STC SR02460NY](https://openairdocs.org/stc/SR02460NY): Installation of Honeywell AR-Series CVR. Maxcraft Avionics Ltd
- [STC SR02447NY](https://openairdocs.org/stc/SR02447NY): The installation of DF Antenna System. VIH Aerospace Inc
- [STC SR02429NY](https://openairdocs.org/stc/SR02429NY): Installation of Bubble Window. VIH Aerospace Inc
- [STC SR01288SE](https://openairdocs.org/stc/SR01288SE): Fabrication of Ag-Air Systems Model 36000 Auxiliary Hydraulic System. Kawak Aviation Technologies Inc
- [STC SA02279AK](https://openairdocs.org/stc/SA02279AK): Installation of dual Rockwell Collins FDS 2000 flight displays, dual AHS 3000 attitude and heading reference systems, dual Garmin GNS 530 navigation systems and supporting avionics equipment . Acrohelipro Global Services USA Inc
- [STC SR02329NY](https://openairdocs.org/stc/SR02329NY): Installation of a radio shelf. VIH Aerospace Inc
- [STC SR09448RC](https://openairdocs.org/stc/SR09448RC): Installation of Concorde Battery Corporation Model RG-3BOE/44 Valve Regulated Sealed Lead Acid Battery. Carson Helicopters Inc
- [STC SR09231RC](https://openairdocs.org/stc/SR09231RC): Installation of Smiths Industries Cockpit Voice Recorder in accordance with Master Drawing List ACRO 61-23-00-103, Rev NC, dated April 6, 1999, or later FAA approved revision. Acrohelipro Global Services Inc
- [STC SR09234RC](https://openairdocs.org/stc/SR09234RC): Installation of Navigation Switching and GPS System in accordance with Master Drawing List ACRO 61-34-00-103, Rev A dated February 21, 2000, or later FAA approved revision. Acrohelipro Global Services Inc
- [STC SR09235RC](https://openairdocs.org/stc/SR09235RC): Installation of Litton T5PTIT Indicators in accordance with Master Drawing List ACRO 61-77-20-101, Rev. NC dated April 06, 1999, or later FAA approved revision. Acrohelipro Global Services Inc
- [STC SR09237RC](https://openairdocs.org/stc/SR09237RC): Installation of SFENA 904 Standby Attitude Indicator in accordance with Master Drawing List ACRO 61-34-00-101, Rev. NC dated January 28, 1999, or later FAA approved revision. Acrohelipro Global Services Inc
- [STC SR09238RC](https://openairdocs.org/stc/SR09238RC): Installation of NAV/COM avionics package in accordance with Master Drawing List ACRO 61-23-00-101, Rev. B, dated February 21, 2000, or later FAA approved revision. Acrohelipro Global Services Inc
- [STC SR02057NY](https://openairdocs.org/stc/SR02057NY): Upgrade of the S6135-20600 series main gearbox by replacing input free-wheeling units in accordance with Carson drawing. IFWU INSTL Carson S-61 No. CHI-R-001, no revision, dated 12-15-04 and Carson Installation Instructions Report CHI-R-INSTALL, no revision, dated 12-14-04. Carson Helicopters, Inc

All 69: https://openairdocs.org/model/sikorsky-s-61l/stcs.md

## PMA parts (OpenAirDocs) (over 1,000, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first.

- [RS40C1A390000](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172857139820260305155758.0001): HOSE ASSY. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SS40C1A390000 · Feb 19, 2026
- [R1615-30113-005](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150742166620251117194918.0001): SHIM. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S1615-30113-005 · Oct 22, 2025
- [RS40CT27D146185](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136614728920250908142033.0001): HOSE ASSY. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SS40CT27D146185 · Aug 29, 2025
- [MDL TD 031851](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126524348320250508133547.0001): VA-1A( )AndAccessories. Electronics International Inc · PMA PQ0088NM · Modification part · Apr 10, 2025
- [R6135-20125-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147330334320250303213556.0001): PLATE. Rotair Aerospace Corporation624 · PMA PQ0781NE · Replaces S6135-20125-1 · Feb 27, 2025
- [R6120-60916-9](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139878254820250303213601.0001): FITTING ASSY. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6120-60916-9 · Feb 20, 2025
- [R6135-66661-0](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157007349120241024163556.0001): LINER. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6135-66661-0 · Oct 21, 2024
- [SB5063-101ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173472979620230503123336.0001): Bearing, Spherical Plain, Self-Aligning. Aircraft Component Design LLC · PMA PQ2138NE · Replaces SB5063-101 · Apr 26, 2023
- [R6165-61517-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115212629020230331175557.0001): Housing. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6165-61517-101 · Mar 24, 2023
- [200-243-00200-243-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100956162220220811112052.0001): E84 Load Weigh System, Sikorsky S-61. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022
- [SB2501-1ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187843990020220713192317.0001): Bearing, Inner Race Needle. Aircraft Component Design LLC · PMA PQ2138NE · Replaces SB2501-1 · Jul 8, 2022
- [R6135-20061](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125048476520220616191118.0001): Liner. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6135-20061 · Jun 6, 2022
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127063789720220809130923.0001): Aviation Devices & Electronic Components LLC (Av-DEC) · PMA PQ3846SW · May 10, 2022
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159924074320220809102553.0001): Aviation Devices & Electronic Components LLC (Av-DEC) · PMA PQ3846SW · Apr 18, 2022
- [AG844000-15](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137281346620220408135811.0001): Gasket – UHF/VHF Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Feb 8, 2022
- [AG728000-52](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104771530620220408135729.0001): Gasket – Satcom Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Jan 26, 2022
- [AG627000-23](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186622917920220408135709.0001): Gasket – Marker Beacon. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Dec 15, 2021
- [AG627000-12](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134043999220220408140248.0001): Gasket – Marker Beacon Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Nov 17, 2021
- [AG358000-08](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104102772720220408135823.0001): Gasket – ELT Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Nov 17, 2021
- [61350-20459-102ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID573416591620210712201311.0001): Bushing. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 61350-20459-102 · Jun 16, 2021
- [61350-20459-101ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID383063656520210712201310.0001): Bushing. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 61350-20459-101 · Jun 16, 2021
- [61350-20457-101ACD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID287616081202107122013090.0001): Retainer Roller. Aircraft Component Design LLC · PMA PQ2138NE · Replaces 61350-20457-101 · Jun 16, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID983012040420210623160143.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID973226777620210623160111.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID907221752920210623160100.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID769582231720210623160141.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID695904072720210623160116.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID671570229620210623160126.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID646919564620210623160049.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID496704777820210623160107.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID433171413120210623160145.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID410940788920210623160057.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID393991942820210623160121.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID378140021320210623160156.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID266197878020210623160104.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101025775320210623160233.0001): Rotair Aerospace Corporation · PMA PQ0781NE · Mar 12, 2021
- [R6140-20009-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID390979880520210623160102.0001): LINK ASSY, LEFT LATERAL AND FORE AND AFT, PRIMARY SERVO. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6140-20009-2 · Mar 11, 2021
- [AG358000-07](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID319330416420210727195147.0001): Gasket – ELT Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Dec 11, 2020
- [R6132-61033-1](https://drs.faa.gov/browse/excelExternalWindow/83CDCA1AA07B786D8625863A005E0DF6.0001): SCREW. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6132-61033-1 · Dec 5, 2020
- [SB2506-3ACD](https://drs.faa.gov/browse/excelExternalWindow/4A8E47F4070D43B2862586260044ADD3.0001): Inner Race, Needle Bearing. Aircraft Component Design LLC · PMA PQ2138NE · Replaces SB2506-3 · Nov 16, 2020
- [SB2506-1ACD](https://drs.faa.gov/browse/excelExternalWindow/292DA472085BF408862586260044AD96.0001): Inner Race, Needle Bearing. Aircraft Component Design LLC · PMA PQ2138NE · Replaces SB2506-1 · Nov 16, 2020
- [R6135-20645](https://drs.faa.gov/browse/excelExternalWindow/4E9F83A1752B4DD786258601004FB14B.0001): SPACER. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6135-20645 · Oct 7, 2020
- [RS40T7D280000](https://drs.faa.gov/browse/excelExternalWindow/5F9F22520AA81588862585E6004B12F9.0001): HOSE ASSY.. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SS40T7D280000 · Sep 15, 2020
- [RS40-1D300000](https://drs.faa.gov/browse/excelExternalWindow/3D21AFC772CCB7E3862585E6004B128D.0001): HOSE ASSY.. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SS40-1D300000 · Sep 15, 2020
- [RS40DT7E322000](https://drs.faa.gov/browse/excelExternalWindow/E4807A98297D9632862585DE0051BB82.0001): HOSE ASSY.. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SS40DT7E322000 · Aug 24, 2020
- [RS40DT1G294000](https://drs.faa.gov/browse/excelExternalWindow/CC87EF329D1E6EAE862585DE0051BBF0.0001): HOSE ASSY.. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SS40DT1G294000 · Aug 24, 2020
- [R65207-02028-101](https://drs.faa.gov/browse/excelExternalWindow/FAA0D67D3C3DDB93862585DE0058426B.0001): SEAL. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces 65207-02028-101 · Aug 19, 2020
- [R6165-61584-0](https://drs.faa.gov/browse/excelExternalWindow/64BCCCF0B2BBA4C6862585DE00584152.0001): SPRING. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6165-61584-0 · Aug 19, 2020
- [R6110-21085-2](https://drs.faa.gov/browse/excelExternalWindow/5282BB91B127A7E9862585DE00583EF2.0001): BOLT. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces S6110-21085-2 · Aug 19, 2020
- [RB2101-1](https://drs.faa.gov/browse/excelExternalWindow/512C7562F9A2AEEB862585DE00584215.0001): BEARING. Rotair Aerospace Corporation · PMA PQ0781NE · Replaces SB2101-1 · Aug 19, 2020

All of them: https://openairdocs.org/model/sikorsky-s-61l/pma.md

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