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PIPER L-4B

7 registered · 1942–1954 · 2 NTSB events · 9 ADs

About this data

Fixed Wing Single Engine · as of Sep 21, 2026

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Distribution · currently registered

By state (top 10)

  • IL 14.3% 1
  • KS 14.3% 1
  • KY 14.3% 1
  • MD 14.3% 1
  • CA 14.3% 1
  • WA 14.3% 1
  • TX 14.3% 1

By decade of manufacture

  • 1940s 42.9% 3
  • 1950s 14.3% 1
  • Unknown 42.9% 3

NTSB records

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

Airworthiness directives

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

  • Apr 29, 2015

    Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    We are superseding Airworthiness Directive (AD) 99-01-05 R1, which applied to certain aircraft equipped with wing lift struts. AD 99-01-05 R1 required repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift strut; replac…

    Atlas AD Federal Register ↗
  • Dec 31, 2014

    Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    We propose to supersede Airworthiness Directive (AD) 99-01-05 R1, which applies to certain aircraft equipped with wing lift struts. AD 99-01-05 R1 currently requires repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lif…

    Atlas AD Federal Register ↗
  • Dec 31, 2013

    Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to certain aircraft equipped with wing lift struts. The list of affected airplanes in the Applicability section is incorrect. Several Piper Aircraft, Inc. Model PA-18 airplanes were inadvertently omitted from…

    Atlas AD Federal Register ↗
  • Dec 10, 2013

    Airworthiness Directives; Various Aircraft Equipped with Wing Lift Struts

    We are revising Airworthiness Directive (AD) 99-01-05 for certain aircraft equipped with wing lift struts. AD 99-01-05 required repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift strut; replacing any cracked wing li…

    Atlas AD Federal Register ↗
  • Jan 16, 2013

    Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    We propose to revise an existing airworthiness directive (AD) that applies to certain aircraft equipped with wing lift struts. The existing AD currently requires repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift st…

    Atlas AD Federal Register ↗
  • Dec 3, 2001

    Airworthiness Directives; GARMIN International GNS 430 Units

    This amendment adopts a new airworthiness directive (AD) that applies to certain GARMIN International (GARMIN) GNS 430 units that are installed on aircraft. This AD requires you to modify the unit to incorporate circuitry changes to the GNS 430 unit's deviation and flag outputs. This AD is the result of reports of ina…

    Atlas AD Federal Register ↗
  • Aug 6, 2001

    Airworthiness Directives; GARMIN International GNS 430 Units

    This document proposes to adopt a new airworthiness directive (AD) that would apply to certain GARMIN International (GARMIN) GNS 430 units that are installed on aircraft. The proposed AD would require you to modify the unit to incorporate circuitry changes to the GNS 430 unit's deviation and flag outputs. The proposed…

    Atlas AD Federal Register ↗
  • Dec 31, 1998

    Airworthiness Directives; All Airplane Models of The New Piper Aircraft, Inc. (formerly Piper Aircraft Corporation) That Are Equipped with Wing Lift Struts

    This amendment supersedes Airworthiness Directive (AD) 93-10- 06, which currently requires repetitively inspecting the wing lift struts and wing lift strut forks for cracks or corrosion on all airplane models of The New Piper Aircraft, Inc. (Piper) that are equipped with wing lift struts, and replacing any strut or fo…

    Atlas AD Federal Register ↗
  • Apr 23, 1998

    Airworthiness Directives; All Models of The New Piper Aircraft, Inc. (Formerly Piper Aircraft Corporation) Airplanes Equipped With Wing Lift Struts

    This document proposes to supersede Airworthiness Directive (AD) 93-10-06, which currently applies to all models of The New Piper Aircraft, Inc. (Piper) airplanes equipped with wing lift struts. AD 93- 10-06 requires repetitively inspecting the wing lift struts and wing lift strut forks for cracks or corrosion, and re…

    Atlas AD Federal Register ↗

Advisory circulars & Federal Register

Registered N-numbers · 7

7 of 7 ● NTSB events on file · orange tails have Atlas pages · Look up queries the live FAA registry (owner, address, last airworthiness)
N-number St Year NTSB FAA
N194L IL — · Look up ↗
N3974A KS 1942 · Look up ↗
N49844 KY — · Look up ↗
N58473 MD 1943 · Look up ↗
N5869V CA 1954 · Look up ↗
N9095C WA — ● Look up ↗
N9649H TX 1943 ● Look up ↗

Source — FAA Aircraft Registry

Sources