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Public Record · As of May 5, 2026

N173AC

Sikorsky S-64E · 1967 View Type →

Status

Registration Valid

Type

Rotorcraft

Engine

P & W JFTD12A-4A

Last Cert Issue

—

01 /  Registration

Filed with the Federal Aviation Administration

Every cell below is a literal field from the FAA Aircraft Registry. Click any value to open the FAA registry record for N173AC.

Tail Number

N173AC

Serial Number

64015

Make

SIKORSKY

Model

S-64E

Year of Manufacture

1967

Mfr / Model Code

8142604

Type Aircraft

Rotorcraft

Type Engine

Turbo-shaft

Engines

2

Seats

3

Engine Manufacturer

P & W

Engine Model

JFTD12A-4A

Horsepower

4500 hp

Weight Class

CLASS 3

Certification

Standard (+1 flag) · code 1T

Registrant

HELICOPTER EXPRESS LLC · LLC

Address

2025 FLIGHTWAY DR · CHAMBLEE, GA 30341-3349

FAA Region

7 · County 089

Status

Registration Valid

Airworthiness Date

—

Cert Issue Date

—

Expiration Date

—

Last FAA Action

—

Mode S Hex (ICAO24)

A12455

Mode S (Octal)

50222125

Live position via ICAO24 A12455

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02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to SIKORSKY S-64E

Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.

  • Nov 22, 2013

    Airworthiness Directives; Erickson Air-Crane Incorporated Helicopters (Type Certificate Previously Held by Sikorsky Aircraft Corporation)

    We are superseding airworthiness directive (AD) 90-26-12 for Sikorsky Aircraft Corporation (Sikorsky) Model S-64E helicopters. AD 90-26-12 required checks of the main rotor blades for a crack. This new AD retains the actions required by AD 90-26-12, reflects that the type certificate (TC) for this model helicopter has been transferred to Erickson Air-Crane…

    Federal Register →

  • Oct 31, 2013

    Airworthiness Directives; Sikorsky Aircraft Corporation-Manufactured (Sikorsky) Model Helicopters (Type Certificate Currently Held by Erickson Air-Crane Incorporated)

    We are superseding Airworthiness Directive (AD) 97-19-10 for Sikorsky Aircraft Corporation-manufactured Model S-64E helicopters (type certificate currently held by Erickson Air-Crane Incorporated (Erickson)). AD 97-19-10 required inspecting and reworking the main gearbox (MGB) assembly second stage lower planetary plate (plate). This action establishes or r…

    Federal Register →

  • Jul 3, 2013

    Airworthiness Directives; Erickson Air-Crane Incorporated Helicopters (Type Certificate previously Held by Sikorsky Aircraft Corporation)

    We propose to supersede an existing airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-64E helicopters. The existing AD requires checks of the main rotor blades for a crack. This proposed AD would retain the actions of the existing AD, would reflect that the type certificate (TC) for this model helicopter has been transferred…

    Federal Register →

  • May 28, 2013

    Airworthiness Directives; Sikorsky Aircraft Corporation-Manufactured (Sikorsky) Model Helicopters (type certificate currently held by Erickson Air-Crane Incorporated)

    We propose to supersede an existing airworthiness directive (AD) for Sikorsky Aircraft Corporation-manufactured Model S-64E helicopters (type certificate currently held by Erickson Air-Crane Incorporated (Erickson)). That AD currently requires inspecting and reworking the main gearbox (MGB) assembly second stage lower planetary plate (plate). This action wo…

    Federal Register →

  • Apr 1, 1999

    Airworthiness Directives; Sikorsky Aircraft-manufactured Model CH-54A Helicopters

    This amendment adopts a new airworthiness directive (AD), applicable to Sikorsky Aircraft-manufactured Model CH-54A helicopters, that requires an initial and recurring inspections and rework or replacement, if necessary, of the second stage lower planetary plate (plate). This amendment is prompted by cracked plates that have been found during overhaul and i…

    Federal Register →

  • Sep 12, 1997

    Airworthiness Directives; Sikorsky Aircraft-Manufactured Model S- 64E Helicopters

    This amendment supersedes an existing airworthiness directive (AD), applicable to Sikorsky Aircraft-manufactured Model S-64E and S- 64F helicopters, that currently requires initial and repetitive inspections of the main gearbox assembly second stage lower planetary plate (plate) for cracks, and removal and replacement of the plate if cracks are found; and d…

    Federal Register →

04 /  Service Difficulty Reports

FAA SDR filings

The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →

05 /  Sources & Methodology

Every fact on this page links to its primary US-government source

We render only what the agency publishes. Found a factual error? Report it → We acknowledge within 5 business days and resolve within 14.