# N506: Sikorsky S-58H - Status: Valid registration - Airframe: [Sikorsky S-58H](https://openairdocs.org/model/sikorsky-s-58h) (registry code 8141839, 14 seats) - Data sheets: [TCDS 1H11](https://openairdocs.org/tcds/1H11) (Centerpointe Aerospace Inc.) (OpenAirDocs) - Serial number: 14-8079 - Type: Rotorcraft - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: December 22, 1983 - Certificate issued: June 10, 2015 - Expires: June 30, 2028 - Mode S code: A65039 - 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=506 - Page: https://openairdocs.org/aircraft/N506 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): 18 in force ### Matched by airframe (Sikorsky S-58H) - [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 ### 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 N506. ## FAA accident and incident reports None matched to N506. ## Service difficulty reports (5) As reported by operators and repair stations. Reports filed since July 23, 1992, when the mark's previous registration was cancelled. - [SDR WVER2016032600009](https://openairdocs.org/sdr/WVER2016032600009), Mar 26, 2016: SKIN. CHAFED. FS 977 LOWER FUSELAGE SKIN CHAFED AT STR 27. - [SDR WVER2016032500007](https://openairdocs.org/sdr/WVER2016032500007), Mar 25, 2016: FRAME. CRACKED. RT BS 235 FRAME HAS AN INDICATION .3 INCH LONG AT RADIUS OF STR 13R. - [SDR SIMA201122101](https://openairdocs.org/sdr/SIMA201122101), Aug 5, 2011: LIGHT. INOPERATIVE. LIGHT BULB OUT IN EXIT SIGN AT LEFT EMERGENCY EXIT DOOR. REMOVED AND REPLACED LAMPS FOR LEFT EMERGENCY EXIT IAW AMM 33-51-05 OPS CHECK GOOD. - [SDR UIEA200600004](https://openairdocs.org/sdr/UIEA200600004), Feb 4, 2006: SKIN. PUNCTURED. LAV SERVICE TRUCK PUT A HOLE IN THE FUSELAGE LEFT HAND LOWER SIDE BETWEEN STRINGERS L39 AND L 40 AT STA 580. NO DAMAGE TO STRINGER. REPAIR ACCOMPLISHED AS PER S - [SDR 02040701](https://openairdocs.org/sdr/02040701), Apr 14, 2002: WIRE. SHORTED. Emergency Interior light at seat 5D INOP. T/S identified wire shorted to ground. Repaired short, replaced fuse, ops check good as per m/m 33-51-11 ## Earlier aircraft with N506 The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N506 before. - [Cancelled 1992-07-23](https://openairdocs.org/deregistered/N506-1992-07-23): Beech F35, S/N D4324. Triennial form not returned. Owner: [Mordica John E Jr](https://openairdocs.org/faa-owner/MORDICA%20JOHN%20E%20JR), [Wright City, MO](https://openairdocs.org/faa-place/MO/Wright%20City) - [Cancelled 1951-05-03](https://openairdocs.org/deregistered/N506-1951-05-03): Cessna UC-78B, S/N 4439. Owner: [Carlson Harry](https://openairdocs.org/faa-owner/CARLSON%20HARRY), [Meridan, NH](https://openairdocs.org/faa-place/NH/Meridan) - [Cancelled 1938-09-01](https://openairdocs.org/deregistered/N506-1938-09-01): Verville 104, S/N 2. Owner: [Davis Emmons Smith](https://openairdocs.org/faa-owner/DAVIS%20EMMONS%20SMITH), [Detroit, MI](https://openairdocs.org/faa-place/MI/Detroit) ## Related - Other Sikorsky S-58H aircraft: https://openairdocs.org/model/sikorsky-s-58h/aircraft.md - STCs for the Sikorsky S-58H: https://openairdocs.org/model/sikorsky-s-58h/stcs.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.