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Type Record · As of May 3, 2026

LOCKHEED P-3A

Fixed Wing Multi Engine · ALLISON T56-10 SER

Registered

3

Year Range

1963–2010

NTSB Events

0

Airworthiness Directives

3

Aircraft Resources

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

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered LOCKHEED P-3A aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • FL 66.7% 2
  • CA 33.3% 1

By Decade of Manufacture

  • 1960s 66.7% 2
  • 2010s 33.3% 1

02 /  NTSB Records

Events involving LOCKHEED P-3A aircraft

No NTSB-recorded events match LOCKHEED P-3A in the indexed corpus.

03 /  Airworthiness Directives

FAA directives applicable to LOCKHEED P-3A

3 directive(s) on file. Showing the most recent 3.

  • May 23, 2018

    Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company

    We are adopting a new airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 188A and 188C airplanes; and Model P3A, P-3A, and P3B airplanes type certificated under various other type certificate holders. Certain variants of Model 188A and 188C airplanes are known as…

    Atlas AD → Federal Register ↗

  • 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 LOCKHEED P-3A

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 LOCKHEED P-3A

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

  • 04/27/2007

    STC SA6012NM

    Installation of a Champion engine ignition system.

    Aero Union Corporation

    Atlas STC → DRS ↗

  • 11/07/2003

    STC SA4005NM (Page 1)

    Precise Flight Inc. Pulselite Control System

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 06/04/2001

    STC SA4005NM (Page 1)

    Precise Flight Inc. Pulselite Control System

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 05/03/1999

    STC ST00788LA

    Installation of a Champion engine ignition system.

    Aero Union Corporation

    Atlas STC → DRS ↗

  • 10/26/1993

    STC SA6012NM

    Installation of a Champion engine ignition system.

    Aero Union Corporation

    Atlas STC → DRS ↗

  • 05/11/1992

    STC SA4861NM

    Installation of retardant tanks for the special purpose of forest and wildlife conservation.

    Aero Union Corporation

    Atlas STC → DRS ↗

  • 11/20/1978

    STC SA308EA (1 OF 2)

    Installation of carburetor ice detection system 105AP in single and twin engine aircraft and single engine helicopters powered by Continental, Franklin, and Lycoming type engines e…

    Alfred R Puccinelli

    Atlas STC → DRS ↗

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for LOCKHEED P-3A

Advisory Circulars

ACs whose subject explicitly mentions LOCKHEED or P-3A.

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
N920AU CA 1963 · Look up ↗
N922AU FL 1964 · Look up ↗
N927AU FL 2010 · 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 →