OpenAirDocs.org

N4AD

Open the Markdown

1973 Cessna 421B · Continental GTSIO-520-C

Open in FAA registry

© OpenStreetMap
Registered owner
Valiair Lc Trustee
Location
Casper, WY
Owner type
LLC
Serial number
421B0467
Year built
1973
Type
Fixed wing multi engine
Engine
Reciprocating
Airworthiness
Standard, normal
Airworthiness date
August 21, 1973
Certificate issued
May 11, 2024
Expires
May 31, 2031
Mode S code
A4A7F3
Cessna 421BAirframe model · 8 seats · 2 engines · 225 registeredTCDS A7CEAirframe · Cessna 421BTCDS E7CEEngine · Continental GTSIO-520-C

From the FAA registry file of October 24, 2026.

On this page

Airworthiness directives that may apply · 55

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

1972In forceSuperseded2026
See all 63 ADs

Information bulletins that may apply · 15

Advisory, not mandatory.

See all 16 bulletins

NTSB investigations

No NTSB investigations matched to N4ADMatched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Cessna 421B aircraft

FAA incident reports · 1

FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.

Incident 19830510023669ITo Aborted (Fixed Wing) · Logan, UTHad a engine malfunction. Aborted takeoff. Hydroplaning occurred. Main gear collapsed turning into run up area.May 10, 1983 · No damage

Service difficulty reports · 1

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

SDR 2017FA0000635Magneto · faultyHAD ONE ROUGH MAG CHECK AND 2 GOOD MAG CHECKS PRIOR TO FLIGHT. REDUCED POWER IN CLIMB AND MAG CHECK REVEALED NO SPARK ON LT MAGNETO. RETURNED TO AIRPORT. REMOVED IGNITION HARNESS FROM MAG AND NOTICED LOTS OF METAL FLAKES UNDER THE COVER OF THE MAG. THIS ENGNov 15, 2017 · N4AD · Cessna 421B · Magneto/Distributor

STCs that may be installed · 279

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.

See all 279 STCs