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Public Record · As of May 5, 2026

N550HZ

Helio HST-550A · 1972 View Type →

Status

Registration Valid

Type

Fixed Wing Single Engine

Engine

P&W PT6A SER

Last Cert Issue

—

Aircraft Resources

Engine · Pratt & Whitney Canada → Search FAA TCDS for HELIO HST-550A →

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 N550HZ.

Tail Number

N550HZ

Serial Number

007

Make

HELIO

Model

HST-550A

Year of Manufacture

1972

Mfr / Model Code

4301006

Type Aircraft

Fixed Wing Single Engine

Type Engine

Turbo-prop

Engines

1

Seats

10

Engine Manufacturer

P&W

Engine Model

PT6A SER

Horsepower

750 hp

Weight Class

CLASS 1

Certification

Experimental (+1 flag) · code 43

Registrant

MAYTAG DAVID D JR · Individual

Address

40040 N 69TH ST · CAVE CREEK, AZ 85331-8267

FAA Region

4 · County 013

Status

Registration Valid

Airworthiness Date

—

Cert Issue Date

—

Expiration Date

—

Last FAA Action

—

Mode S Hex (ICAO24)

A70032

Mode S (Octal)

51600062

Live position via ICAO24 A70032

ADS-B Exchange → FlightAware → FlightRadar24 →

External services. Live tracks are unaffiliated with TallyAero or the FAA.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to HELIO HST-550A

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

  • Aug 17, 2020

    Airworthiness Directives; Aspen Avionics, Inc.

    The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. As published, the docket number and product i…

    Federal Register →

  • Jul 31, 2020

    Airworthiness Directives; Aspen Avionics, Inc.

    The FAA is adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc., Evolution Flight Display (EFD) EFD1000 Emergency Backup Display, EFD1000 Multi-Function Display, and EFD1000 Primary Flight Display systems installed on various airplanes. This AD imposes operating restrictions on these display systems by revising the Limitations sectio…

    Federal Register →

  • Jan 23, 2019

    Airworthiness Directives; Aspen Avionics, Inc., Evolution Flight Display Units

    We are adopting a new airworthiness directive (AD) for certain Aspen Avionics, Inc. (Aspen), Evolution Flight Display (EFD) EFD1000 Primary Flight Display (PFD), EFD1000 Multi-Function Display (MFD), EFD1000 Emergency Backup Display (EBD), and EFD500 MFD units installed on various aircraft. This AD requires disabling the Automatic Dependent Surveillance-Bro…

    Federal Register →

  • Apr 26, 1996

    Airworthiness Directives; Hartzell Propeller Inc. HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers

    This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Hartzell Propeller Inc. (Hartzell) HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC- B4T, and HC-B5M series propellers. This proposal would require hub replacement over a 10-year time period with a concurrent blade and blade clamp inspection. This proposal is prompted by repor…

    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.