Skip to content

SIKORSKY S-70C

1 registered · 1986–1986 · 0 NTSB events · 20 ADs

About this data

Rotorcraft · GE T700 SERIES · as of Sep 21, 2026

Resources Engine · GE Aerospace ↗ Search FAA TCDS ↗

Distribution · currently registered

By state (top 10)

  • UT 100.0% 1

By decade of manufacture

  • 1980s 100.0% 1

NTSB records

No NTSB-recorded events match SIKORSKY S-70C in the indexed corpus.

Airworthiness directives

20 directive(s) on file. Showing the most recent 20.

  • Apr 23, 2026

    Airworthiness Directives; Various Helicopters

    The FAA proposes to supersede Airworthiness Directive (AD) 2020-02-17, which applies to certain Sikorsky Aircraft Corporation (Sikorsky) Model S-70, S-70A, S-70C, S-70C(M), and S-70C(M1) helicopters. AD 2020-02-17 requires recurring visual and tap inspections of the tail rotor blade (TRB) and, depending on the results…

    Atlas AD Federal Register ↗
  • Apr 8, 2024

    Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft

    The FAA is superseding airworthiness directive (AD) 2024-05- 51, which applied to certain General Electric Company (GE) Model CT7- 2E1, CT7-2F1, CT7-8A, CT7-8E, and CT7-8F5 engines, and various restricted category helicopters with GE Model T700-GE-700, -701A, - 701C, -701D/CC, -701D, -401, -401C, CT7-2D, or CT7-2D1 en…

    Atlas AD Federal Register ↗
  • Mar 15, 2024

    Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft

    The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model CT7-2E1, CT7-2F1, CT7-8A, CT7-8E, CT7-8F5 engines, and various restricted category helicopters with GE Model T700-GE-700,-701A, -701C, -701D/CC, -701D, -401, -401C, CT7-2D or CT7-2D1 engines installed. This AD was pr…

    Atlas AD Federal Register ↗
  • Oct 29, 2020

    Airworthiness Directives; Various Restricted Category Helicopters

    The FAA is adopting a new airworthiness directive (AD) for various restricted category helicopters, originally manufactured by Sikorsky Aircraft Corporation (Sikorsky), Model EH-60A, HH-60L, S-70, S-70A, S-70C, S-70C(M), S-70C(M1), and UH-60A. This AD requires initial and recurring inspections of the main rotor (M/R)…

    Atlas AD Federal Register ↗
  • Jul 9, 2020

    Airworthiness Directives; Various Restricted Category Helicopters

    The FAA proposes to adopt a new airworthiness directive (AD) for various restricted category helicopters, originally manufactured by Sikorsky Aircraft Corporation (Sikorsky), Model EH-60A, HH-60L, S-70, S-70A, S-70C, S-70C(M), S-70C(M1), and UH-60A. This proposed AD would require initial and recurring inspections of t…

    Atlas AD Federal Register ↗
  • Feb 7, 2020

    Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    The FAA is adopting a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation (Sikorsky) Model S-70, S-70A, S- 70C, S-70C(M), and S-70C(M1) helicopters. This AD was prompted by four incidents of disbonding between the tail rotor (T/R) blade pitch horn and the torque tube. This AD requires recurring…

    Atlas AD Federal Register ↗
  • Sep 6, 2019

    Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    The FAA proposes to adopt a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation (Sikorsky) Model S-70, S-70A, S-70C, S-70C(M), and S-70C(M1) helicopters. This proposed AD was prompted by four incidents of disbonding between the tail rotor (T/R) blade pitch horn and the torque tube. This proposed…

    Atlas AD Federal Register ↗
  • Jan 21, 2014

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

    We are adopting a new airworthiness directive (AD) for Sikorsky Model S-70, S-70A, and S-70C helicopters. This AD establishes a new life limit based on a prorated formula for certain identified components (parts) installed on Model S-70, S-70A, and S-70C helicopters after being previously installed on certain military…

    Atlas AD Federal Register ↗
  • Jan 6, 2014

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

    We are adopting a new airworthiness directive (AD) for Sikorsky Model S-70, S-70A, S-70C, S-70C (M), and S-70C (M1) helicopters with General Electric (GE) T700-GE-401C or T700-GE-701C engines installed. This AD requires establishing new fatigue life limits for certain GE engine gas generator turbine (GGT) rotor parts.…

    Atlas AD Federal Register ↗
  • Jul 23, 2013

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

    We propose to adopt a new airworthiness directive (AD) for Sikorsky Model S-70, S-70A, and S-70C helicopters. This proposed AD would establish a new life limit based on a prorated formula for certain identified components (parts) installed on Model S-70, S-70A, and S-70C helicopters after being previously installed on…

    Atlas AD Federal Register ↗
  • Jul 23, 2013

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

    We are revising an earlier proposed airworthiness directive (AD) for the Sikorsky Model S-70, S-70A, S-70C, S-70C (M), and S-70C (M1) helicopters with General Electric (GE) T700-GE-401C or T700-GE- 701C engines installed, which proposed establishing new fatigue life limits for certain GE engine gas generator turbine (…

    Atlas AD Federal Register ↗
  • Jul 12, 2013

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

    The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. The AD applies to all Sikorsky Model S-70, S-70A, and S-70C helicopters, which are restricted category helicopters derived from the military Model UH-60 helicopter. The part number (P/N) for the No. 2 crossfeed breakaway…

    Atlas AD Federal Register ↗
  • Jun 28, 2013

    Airworthiness Directives; Various Helicopter Models

    We are publishing a new airworthiness directive (AD) for various model helicopters with certain part-numbered and serial- numbered Goodrich externally-mounted hoists installed. This AD requires performing a cable conditioning lift and a load inspection test, deactivating or replacing any hoist that fails the load insp…

    Atlas AD Federal Register ↗
  • Nov 29, 2012

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

    We are adopting a new airworthiness directive (AD) for Sikorsky Model S-70, S-70A, and S-70C helicopters, which are restricted category helicopters derived from the military Model UH-60 helicopter. This AD would require reducing or establishing life limits for certain listed helicopter parts. This AD is prompted by a…

    Atlas AD Federal Register ↗
  • Nov 15, 2012

    Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    We are superseding an existing Emergency airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-70, S-70A, S-70C, S-70C(M), and S-70C(M1) helicopters with a certain part- numbered intermediate gearbox (IGB). The existing Emergency AD requires a one-time inspection of the internal oil passage…

    Atlas AD Federal Register ↗
  • Sep 7, 2012

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

    We propose to adopt a new airworthiness directive (AD) for the Sikorsky Model S-70, S-70A, S-70C, S-70C (M), and S-70C (M1) helicopters with General Electric (GE) T700-GE-401C or T700-GE-701C engines installed. This proposed AD is prompted by a reevaluation of the method for determining the life limit for certain GE e…

    Atlas AD Federal Register ↗
  • Nov 17, 2010

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-70A and S-70C Helicopters

    This amendment adopts a new airworthiness directive (AD) for the Sikorsky Model S-70A and S-70C helicopters. This AD requires an ultrasonic test (UT) inspection of the tail gearbox output bevel gear (gear) for a crack. If you find a crack, replacing the gear with an airworthy gear is required before further flight. Th…

    Atlas AD Federal Register ↗
  • May 13, 2010

    Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-70A and S-70C Helicopters

    This document proposes adopting a new airworthiness directive (AD) for the Sikorsky Model S-70A and S-70C helicopters. This proposal would require an ultrasonic test (UT) inspection of the tail gearbox output bevel gear (gear) for a crack. If you find a crack, replacing the gear with an airworthy gear before further f…

    Atlas AD Federal Register ↗
  • Jun 7, 2002

    Airworthiness Directives; Sikorsky Model S-70A and S-70C Helicopters

    This amendment supersedes an existing airworthiness directive (AD) for Sikorsky Model S-70A and S-70C helicopters. That AD currently requires inspecting a certain part-numbered main landing gear drag beam (beam) for a crack, removing any cracked beam before further flight, and reducing the torque of the jackpad mounti…

    Atlas AD Federal Register ↗
  • Dec 18, 2001

    Airworthiness Directives; Sikorsky Model S-70A and S-70C Helicopters

    This amendment adopts a new airworthiness directive (AD) for Sikorsky Model S-70A and S-70C helicopters. This action requires certain inspections of each main landing gear drag beam (beam) for a crack and removing any cracked beam before further flight. This action also requires reducing the torque of the jackpad moun…

    Atlas AD Federal Register ↗

Type certificate data sheets · 2 matches in the FAA catalog

  • H3NE Sikorsky Aircraft Corporation Historical Rev 8 · 10/24/1995

    Models: S-70C

    Atlas TCDS DRS ↗
  • H4NE United Technologies Corporation Historical Rev 2 · 05/24/1990

    Models: S-70C(M1), S-70C(M)

    Atlas TCDS DRS ↗

Supplemental type certificates · 49 on file

+ 19 more STCs on file

PMA replacement parts · 60+ on file

+ 20 more PMA parts on file

Advisory circulars & Federal Register

Registered N-numbers · 1

1 of 1 ● NTSB events on file · orange tails have Atlas pages · Look up queries the live FAA registry (owner, address, last airworthiness)
N-number St Year NTSB FAA
N2FH UT 1986 · Look up ↗

Source — FAA Aircraft Registry

Sources