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Atlas / NTSB / WPR21LA256

NTSB CAROL · Event

Event WPR21LA256

2021-06-28 Nampa, Idaho, United States Airport · MAN None 1 aircraft Status: Completed

Registry · N381KH

FAA Aircraft Registry record.

Make / Model

MOONEY M20M

Year of manufacture

2005 · 16 years old at event

Engine

LYCOMING TI0-540 SER (310 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

20050826

ADS-B equipped

Yes — Mode-S A45FEA

Registrant of record

PHOENIX FIRE PROTECTION LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to use the landing checklist and to extend the landing gear, which resulted in a gear-up landing.

Factual narrative

The pilot of a retractable landing gear-equipped airplane reported that, while maneuvering to avoid traffic for landing, he failed to complete the landing checklist and did not extend the landing gear. The airplane subsequently landed with the landing gear retracted. The airplane sustained substantial damage to the fuselage undercarriage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. 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-Aircraft systems-Landing gear system-Gear extension and retract sys-Not used/operated
  • Personnel issues-Action/decision-Action-Forgotten action/omission-Pilot
  • Personnel issues-Task performance-Use of equip/info-Use of checklist-Pilot

Verbatim from NTSB's published report. Source file NTSB_2021_WPR21LA256.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. 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 ↗