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N421ML

Open the Markdown

1981 Cessna 421C · Continental GTSIO-520 series

Open in FAA registry

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Registered owners
Lps Utilities Inc DBALps Contracting
Location
Woodstock, IL
Owner type
Corporation
Serial number
421C0880
Year built
1981
Type
Fixed wing multi engine
Engine
Reciprocating
Airworthiness
Special flight permit
Airworthiness date
January 14, 2003
Certificate issued
October 8, 2024
Expires
October 31, 2031
Mode S code
A50074
Cessna 421CAirframe model · 8 seats · 2 engines · 496 registeredTCDS A7CEAirframe · Cessna 421CTCDS E7CEEngine · Continental GTSIO-520 series

From the FAA registry file of October 22, 2026. The registry lists only the engine series, so ADs for every Continental GTSIO-520 model are included below.

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Airworthiness directives that may apply · 59

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 67 ADs

Information bulletins that may apply · 17

Advisory, not mandatory.

See all 19 bulletins

NTSB investigations

No NTSB investigations matched to N421MLMatched 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 421C 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 20031021029789INormal Cruise · Springfield, IL(-23) On 10-21-2003, while on a personal business flight the appropriately certificated and qualified pilot and sole occupant was flying from anderson, in to Colorado springs, CO. Approximately 25 miles northeast of spi at an altitude of 4500 MSL the PIC…Oct 21, 2003

Service difficulty reports · 1

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

SDR 2003FA0001147Exhaust Valve · brokenDURING FLIGHT .33 OF THE EXHAUST VALVE IN THE NR 4 CYLINDER BROKE CAUSING EXTENSIVE DAMAGE TO THE PISTON AND THE CYLINDER HEAD. DURING THE HIDDEN DAMAGE INSPECTION THE BROKEN VALVE WAS FOUND IN THE INTAKE PORT OF THE CYLINDER ON THE SAME CYLINDER. NO DAMAGE Oct 24, 2003 · N421ML · Cessna 421C · Reciprocating Engine Cylinder Section

STCs that may be installed · 290

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

See all 290 STCs