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Type Record · As of May 3, 2026

LOCKHEED 12A

Fixed Wing Multi Engine · P&W R-985 SERIES

Registered

15

Year Range

1936–1941

NTSB Events

8

Airworthiness Directives

9

Aircraft Resources

Engine · Pratt & Whitney Canada → Search FAA TCDS →

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered LOCKHEED 12A aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • VA 14.3% 2
  • FL 14.3% 2
  • CA 14.3% 2
  • AZ 7.1% 1
  • UT 7.1% 1
  • MO 7.1% 1
  • GA 7.1% 1
  • NV 7.1% 1
  • VT 7.1% 1
  • DE 7.1% 1

+1 more states

By Decade of Manufacture

  • 1930s 60.0% 9
  • 1940s 20.0% 3
  • Unknown 20.0% 3

02 /  NTSB Records

Events involving LOCKHEED 12A aircraft

8 event(s) on file. Showing the most recent 8.

03 /  Airworthiness Directives

FAA directives applicable to LOCKHEED 12A

9 directive(s) on file. Showing the most recent 9.

  • Sep 9, 2005

    Airworthiness Directives; Hartzell Propeller Inc. Propellers

    The FAA is adopting a new airworthiness directive (AD) for certain Hartzell Propeller Inc. propellers. This AD requires inspecting the propeller blades and other critical propeller parts for corrosion and mechanical damage. This AD results from two events where a "Z- shank" blade failed and separated and the results o…

    Atlas AD → Federal Register ↗

  • Jan 19, 2005

    Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

    The FAA is adopting a new airworthiness directive (AD) to supersede Airworthiness Directive 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD a…

    Atlas AD → Federal Register ↗

  • Dec 29, 2004

    Airworthiness Directives; Hartzell Propeller Inc. Propellers

    The FAA proposes to adopt a new airworthiness directive (AD) for certain Hartzell Propeller Inc. propellers. This proposed AD would require inspecting the propeller blades and other critical propeller parts for corrosion and mechanical damage. This proposed AD results from two events where a "Z-shank" blade failed and…

    Atlas AD → Federal Register ↗

  • Oct 7, 2004

    Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

    The FAA proposes to supersede Airworthiness Directive (AD) 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This proposed AD applies to certain GTX 33…

    Atlas AD → Federal Register ↗

  • May 21, 2004

    Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

    The FAA adopts a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are installed on aircraft. This AD requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD is the result of observations that the GTX 330 and GTX 330D may…

    Atlas AD → Federal Register ↗

  • Dec 30, 2003

    Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

    The FAA proposes to adopt a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders. This proposed AD would require you to install GTX 330/ 330D Software Upgrade Version 3.03. This proposed AD is the result of observations that the GTX 330 and GTX 330D may detect, fr…

    Atlas AD → Federal Register ↗

  • Jun 6, 2000

    Airworthiness Directives; Rolls-Royce plc RB211 Series Turbofan Engines

    This amendment supersedes an existing airworthiness directive (AD) applicable to certain Rolls-Royce plc (R-R) RB211 series turbofan engines. That AD currently requires the removal from service of intermediate pressure (IP) compressor stage 6-7 rotor shafts that exceed reduced cyclic life limits. This amendment requir…

    Atlas AD → Federal Register ↗

  • Oct 12, 1999

    Airworthiness Directives; Raytheon Aircraft Company 90, 99, 100, 200, 300, 1900, and 2000 Series Airplanes

    This document proposes to adopt a new airworthiness directive (AD) that would apply to all Raytheon Aircraft Company (Raytheon) 90, 99, 100, 200, 300, 1900, and 2000 series airplanes. The proposed AD would require revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumati…

    Atlas AD → Federal Register ↗

  • Jun 8, 1998

    Airworthiness Directives; Raytheon Aircraft Company 200 Series Airplanes

    This document proposes to adopt a new airworthiness directive (AD) that would apply to Raytheon Aircraft Company (Raytheon) 200 series airplanes. The proposed AD would require revising the FAA- approved Airplane Flight Manual (AFM) to specify procedures that would prohibit flight in severe icing conditions (as determi…

    Atlas AD → Federal Register ↗

07 /  PMA replacement parts

FAA-approved replacement parts for LOCKHEED 12A

1 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

  • #https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID462877665320210702175230.0001##

    Aspen Avionics

    PMA holder →

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for LOCKHEED 12A

05 /  Aircraft of this type

All 15 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.

15 of 15
N-number St Year NTSB FAA
N100JT AZ — · Look up ↗
N14999 VA 1938 · Look up ↗
N16085 FL 1937 ● Look up ↗
N17399 CA 1939 · Look up ↗
N18097 FL 1938 · Look up ↗
N18125 UT 1937 · Look up ↗
N18130 — 1937 ● Look up ↗
N18137 MO 1937 ● Look up ↗
N18906 CA — ● Look up ↗
N2072 GA 1936 ● Look up ↗
N25628 NV 1940 · Look up ↗
N2633 VT 1940 · Look up ↗
N33650 DE 1941 · Look up ↗
N33RA OR 1937 · Look up ↗
N4001 VA — ● 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 →