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Type Record · As of May 3, 2026

SIKORSKY S-58

Rotorcraft

Registered

2

Year Range

1958–1958

NTSB Events

0

Airworthiness Directives

1

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered SIKORSKY S-58 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • PA 50.0% 1
  • WA 50.0% 1

By Decade of Manufacture

  • 1950s 50.0% 1
  • Unknown 50.0% 1

02 /  NTSB Records

Events involving SIKORSKY S-58 aircraft

No NTSB-recorded events match SIKORSKY S-58 in the indexed corpus.

03 /  Airworthiness Directives

FAA directives applicable to SIKORSKY S-58

1 directive(s) on file. Showing the most recent 1.

  • Jun 22, 1994

    Airworthiness Directives: Sikorsky Aircraft Model S-58 and S-58T Series Helicopters

    This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Sikorsky Aircraft Model S-58 and S-58T series helicopters. This proposal would require the removal and replacement of the transmission main gear box ring gear (ring gear) within certain time intervals and would establish a…

    Atlas AD → Federal Register ↗

06 /  Supplemental Type Certificates

Modifications approved for SIKORSKY S-58

4 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

  • 01/24/2005

    STC SA2693NM

    Installation of Electronics International digital volt/amp gauges and accessories.

    Electronics International Inc.

    Atlas STC → DRS ↗

  • 01/26/1988

    STC SA2693NM

    Installation of Electronics International digital volt/amp gauges and accessories.

    Electronics International

    Atlas STC → DRS ↗

  • 03/26/1980

    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 H…

    TBM, Inc

    Atlas STC → DRS ↗

  • 06/07/1977

    STC SH453NW

    Incorporation of a weighing system for external load operations.

    Measurement Systems Intl

    Atlas STC → DRS ↗

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for SIKORSKY S-58

05 /  Aircraft of this type

All 2 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

2 of 2
N-number St Year NTSB FAA
N46922 PA — · Look up ↗
N7936C WA 1958 · Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →