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Type Record · As of May 3, 2026

AERO UNION CORP P3A

Fixed Wing Multi Engine · ALLISON T-56-A-10W

Registered

3

Year Range

1964–2010

NTSB Events

0

Airworthiness Directives

2

Aircraft Resources

Engine · Rolls-Royce M250 (Allison) → Search FAA TCDS →

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered AERO UNION CORP P3A aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • CA 66.7% 2
  • FL 33.3% 1

By Decade of Manufacture

  • 1960s 33.3% 1
  • 2010s 33.3% 1
  • Unknown 33.3% 1

02 /  NTSB Records

Events involving AERO UNION CORP P3A aircraft

No NTSB-recorded events match AERO UNION CORP P3A in the indexed corpus.

02b /  NASA ASRS Reports

Near-miss reports involving AERO UNION CORP P3A

NASA's voluntary, confidential reporting system surfaces what almost went wrong. 1 de-identified ASRS report references this airframe. Pilot-written narrative. ASRS reports are voluntary and not investigated — they represent the reporter's perspective and cannot infer prevalence.

03 /  Airworthiness Directives

FAA directives applicable to AERO UNION CORP P3A

2 directive(s) on file. Showing the most recent 2.

  • Jun 3, 2014

    Airworthiness Directives; Airplanes Originally Manufactured by Lockheed for the Military as Model P-3A and P3A Airplanes

    We are adopting a new airworthiness directive (AD) for certain airplanes originally manufactured by Lockheed Martin Aeronautics Company for the military as Model P-3A or P3A airplanes. This AD was prompted by a determination that the existing maintenance or inspection program must be revised to address fatigue crackin…

    Atlas AD → Federal Register ↗

  • Jan 21, 2014

    Airworthiness Directives; Airplanes Originally Manufactured by Lockheed for the Military as P-3A and P3A Airplanes

    We propose to adopt a new airworthiness directive (AD) for certain airplanes, originally manufactured by Lockheed Martin Aeronautics Company for the military as P-3A or P3A airplanes. This proposed AD was prompted by a determination that the existing maintenance program must be revised to address fatigue cracking of t…

    Atlas AD → Federal Register ↗

04 /  Type Certificate Data Sheets

FAA TCDS for AERO UNION CORP P3A

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

06 /  Supplemental Type Certificates

Modifications approved for AERO UNION CORP P3A

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

  • 04/15/2015

    STC ST00792LA

    Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation.

    United Aeronautical Corporation

    Atlas STC → DRS ↗

  • 04/15/2015

    STC ST00788LA

    Installation of a Champion or Unison engine ignition system

    United Aeronautical Corporation

    Atlas STC → DRS ↗

  • 12/02/2014

    STC ST04186AT

    Incorporation of P3A Airworthiness Limitation Section for aircraft operated in Restricted Category for the special mission of aerial dispensing of liquids

    Avenger Aerospace Solutions, Inc.

    Atlas STC → DRS ↗

  • 04/20/2011

    STC ST03718AT

    Incorporation of P3A Airworthiness Limitation Section for aircraft operated in Restricted Category for the special mission of aerial dispensing of liquids in accordance with Avenge…

    Avenger Aircraft and Services

    Atlas STC → DRS ↗

  • 06/25/2007

    STC ST00788LA

    Installation of a Champion engine ignition system.

    Aero Union Corporation

    Atlas STC → DRS ↗

  • 04/29/1999

    STC ST00792LA

    Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation.

    Aero Union Corporation

    Atlas STC → DRS ↗

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for AERO UNION CORP P3A

05 /  Aircraft of this type

All 3 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.

3 of 3
N-number St Year NTSB FAA
N900AU CA 2010 · Look up ↗
N923AU CA — · Look up ↗
N925AU FL 1964 · 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 →