Pistons/PIPER/L-4B/N3974A

N3974A — 1942 PIPER L-4B

Registry aircraft record

✦FAA Registry Record

N-NumberN3974A

Serial number9430

ManufacturerPIPER

ModelL-4B

Year built1942

RegistrantKLINGENBERG TIMOTHY C

Registry statusRegistered (V)

RegistrationRegistration current · expires 31 May 2028

AirworthinessAirworthiness certificate on file

Last action2023-05-12

Source: FAA (United States) · updated Oct 22, 2026

One of 7 active PIPER L-4Bs across the 4 registries BuyJet tracks. Registry record last updated Oct 22, 2026.

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About N3974A

N3974A is a 1942 PIPER L-4B registered with the FAA (United States).

Yes — the FAA (United States) lists N3974A as registered (registry data updated 2026-10-22).

The PIPER L-4B has 2 seats and 1 engine.