# N703SC: 1963 Sikorsky S58E

- Status: Valid registration
- Airframe: [Sikorsky S58E](https://openairdocs.org/model/sikorsky-s58e) (registry code 8141811, 14 seats)
- Engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020)
- Data sheets: [TCDS 1H11](https://openairdocs.org/tcds/1H11) (Centerpointe Aerospace Inc.) (OpenAirDocs)
- Serial number: 581607
- Year built: 1963
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, transport
- Airworthiness date: January 21, 2020
- Certificate issued: June 12, 2018
- Expires: June 30, 2028
- Mode S code: A96146
- Registered owner: [Vi 1 LLC](https://openairdocs.org/faa-owner/VI%201%20LLC)
- Location: [Brewster, WA](https://openairdocs.org/faa-place/WA/Brewster)
- Owner type: LLC
- Owner's area on the map: 48.1315° N, 119.8060° W: Placed by OpenAirDocs at the center of ZIP code 98812, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=703SC
- Page: https://openairdocs.org/aircraft/N703SC

From the FAA registry file of October 22, 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. The registry lists only the engine series, so ADs for every Wright R-1820 model are included.

## ADs that may apply (OpenAirDocs): 18 in force

### Matched by airframe (Sikorsky S58E)

- [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 95-26-08](https://openairdocs.org/ad/95-26-08): Main Rotor Shaft · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Jan 4, 1996
- [AD 95-10-09](https://openairdocs.org/ad/95-10-09): Transmission Main Gear Box Ring Gear · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Jun 16, 1995
- [AD 89-25-01](https://openairdocs.org/ad/89-25-01): Engine Fire Extinguishing System · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Dec 26, 1989
- [AD 60-17-03 R1](https://openairdocs.org/ad/60-17-03-R1): Main Rotor Blade Assemblies · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Feb 2, 1989
- [AD 64-02-06 R1](https://openairdocs.org/ad/64-02-06-R1): Pylon and Tail Cone Fittings · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Dec 27, 1988
- [AD 86-25-05](https://openairdocs.org/ad/86-25-05): Gearbox Pinions Or Gears · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Jan 5, 1987
- [AD 85-17-08](https://openairdocs.org/ad/85-17-08): Main Rotor Head Bolts · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Jan 13, 1986
- [AD 82-01-07](https://openairdocs.org/ad/82-01-07): Horizontal Hinge Pins · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Feb 1, 1982
- [AD 74-15-06](https://openairdocs.org/ad/74-15-06): Tail Rotor Gear Box · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Dec 30, 1977
- [AD 75-13-01](https://openairdocs.org/ad/75-13-01): Main Rotor Assembly · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective May 20, 1977
- [AD 75-07-08](https://openairdocs.org/ad/75-07-08): Tail Assembly · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Apr 8, 1975
- [AD 75-07-07](https://openairdocs.org/ad/75-07-07): Emergency Hatch Handles · Sikorsky S-58B, S-58BT, S-58D and 9 more. Effective Apr 8, 1975
- [AD 59-16-04](https://openairdocs.org/ad/59-16-04): Damper Trunnion Bolt · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Apr 8, 1975
- [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 61-01-03](https://openairdocs.org/ad/61-01-03): Input Bevel Gear · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Dec 30, 1960
- [AD 60-24-04](https://openairdocs.org/ad/60-24-04): Electrical Cable · Sikorsky S-58A, S-58B, S-58BT and 12 more. Effective Nov 28, 1960
- [AD 57-19-02](https://openairdocs.org/ad/57-19-02): Engine Cooling Fan Assembly · Sikorsky S-58A, S-58B, S-58BT and 12 more

### Matched by engine (Wright R-1820 series)

None in force.

### 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

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N703SC.

## FAA accident and incident reports

None matched to N703SC.

## Reports on N703SC not matched to an aircraft (1)

They name N703SC, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19801015074189I](https://openairdocs.org/incident/19801015074189I), Oct 15, 1980: Amd FALCOND (N703SC), Newark, NJ. Za zk flight returned after tower reported fluid leakage. Suspect overboard vent system, no problem found.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (17)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Sikorsky S58E)

- [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 SA5783NM](https://openairdocs.org/stc/SA5783NM): Fabrication of Onboard Systems Model 7 CROPHAWK spray flow measuring system. Onboard Systems International
- [STC SH5780NM](https://openairdocs.org/stc/SH5780NM): Fabrication of Onboard Systems model E-46 cargo hook load weigh system. Onboard Systems International
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SR04483CH](https://openairdocs.org/stc/SR04483CH): Installation of NASI NREM18M Air Conditioning Module. National Aircraft Service Inc. (NASI)
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [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 SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SH8030SW](https://openairdocs.org/stc/SH8030SW): Installation of an engine fire detection system. California Helicopter Intn'l, Inc
- [STC SH770NW](https://openairdocs.org/stc/SH770NW): Installation of a weighing system. Onboard Systems
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International
- [STC SH142WE](https://openairdocs.org/stc/SH142WE): Installation of electronic weighing system c-40. Onboard Systems
- [STC SH453NW](https://openairdocs.org/stc/SH453NW): Installation of an electronic weighing system (for monitoring cargo weight). Measurement Systems Intl
- [STC SH268WE](https://openairdocs.org/stc/SH268WE): Installation of stainless steel fire shields around aluminum engine mount fittings (P/N S1620-61435) of HSS, HUS, H-34 military series helicopters. (S-58 SERIES Military versions HSS, HUS, H-34). TBM, Inc. Lists S-58 Series
- [STC SH109GL](https://openairdocs.org/stc/SH109GL): Installation of CH-34A titanium firewall with intumescent coating. Lake Line Helicopters Inc

## Related

- Other Sikorsky S58E aircraft: https://openairdocs.org/model/sikorsky-s58e/aircraft.md
- The Wright R-1820 series engine: https://openairdocs.org/engine/wright-r-1820-series.md

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