Skip to content

Atlas / NTSB / ERA23LA180

NTSB CAROL · Event

Event ERA23LA180

2023-04-05 Leesburg, Virginia, United States Airport · JYO None 1 aircraft Status: Completed

Registry · N880JS

FAA Aircraft Registry record.

Make / Model

CESSNA 421C

Year of manufacture

1979 · 44 years old at event

Engine

CONT MOTOR GTSIO-520 SER (300 hp)

Seats / Engines

8 seats · 2 engines

Last airworthiness date

19990224

ADS-B equipped

Yes — Mode-S AC1EAE

Registrant of record

DODSON INTERNATIONAL PARTS INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

Separation of the left man landing gear scissor hardware, which resulted in a loss of directional control and subsequent runway excursion during landing.

Factual narrative

The pilot was landing the airplane and reported that as the main landing gear touched down on the runway the airplane immediately veered to the left. The pilot applied right rudder control input but was unable to control the airplane’s direction. The left main landing gear then collapsed as the airplane departed the runway surface and the airplane came to a stop off the left side of the runway. The airplane’s left wing was substantially damaged during the accident. A Federal Aviation Administration inspector examined the airplane after the accident. He observed that the left main landing gear trunnion was cracked and that the strut had separated from the trunnion. The inspector also found that the hardware connecting the scissor link was missing and that the scissor link did not display damage consistent with a shearing action or other abnormal stress. Given this information it is likely that the hardware securing the scissor was not present at the time of the landing, which allowed the left main landing gear wheel to freely castor about the strut, resulting in the loss of directional control at touchdown. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • Aircraft-Fluids/misc hardware-Misc hardware-Fasteners-Not installed/available
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Attain/maintain not possible

Verbatim from NTSB's published report. Source file NTSB_2023_ERA23LA180.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (runway excursion). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗