3 fatalities

Non-Instrument Rated Pilot Loses Control in IMC After Reporting Landing Gear Issue (N634SA)

El Paso, United States of AmericaTakeoff (climb)

On February 19, 1988, a Rockwell Grand Commander 680 (registration N634SA) operated by Donald McCoy was involved in an aviation accident near El Paso, United States of America during takeoff. 3 people were killed. Investigators recorded the probable cause as: Occurrence #1: airframe/component/system failure/malfunction - landing gear undetermined; Occurrence #2: loss of control in flight due to poor planning/decision by pilot in command, airspeed not maintained, inadvertent stall; factors: low ceiling, fog, lack… This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

A non-instrument rated pilot with an expired medical certificate lost control of the aircraft during an IFR flight in instrument meteorological conditions. The aircraft crashed and burned after the pilot reported a landing gear problem.

Accident Overview

A non-instrument rated, non multi-engine rated pilot, whose medical certificate had expired, was conducting an IFR flight. The aircraft encountered instrument meteorological conditions (IMC). During the flight, the pilot reported a landing gear problem and attempted to return for landing. The specific nature of the landing gear malfunction could not be determined.

Loss of Control

The pilot lost control of the aircraft while maneuvering in IMC. The aircraft subsequently crashed and burned. The accident sequence involved several factors, as determined by the official investigation.

Official Findings

The investigation identified multiple occurrences and contributing conditions:

Occurrence #1: Airframe/Component/System Failure/Malfunction

  • Phase of operation: Cruise - normal
  • Finding: Landing gear - undetermined

Occurrence #2: Loss of Control - In Flight

  • Phase of operation: Maneuvering
  • Findings:

1. Weather condition - low ceiling (factor) 2. Weather condition - fog (factor) 3. Planning/decision - poor - pilot in command (cause) 4. Airspeed - not maintained - pilot in command (cause) 5. Stall - inadvertent - pilot in command (cause) 6. Lack of total instrument time - pilot in command (factor)

Occurrence #3: In Flight Collision with Terrain/Water

  • Phase of operation: Descent - uncontrolled
  • Finding: Terrain condition - roadway/highway

Probable Cause

The probable cause, as documented in the official findings, encompasses multiple causes and factors: Occurrence #1 involved an undetermined landing gear malfunction. Occurrence #2 was attributed to the pilot's poor planning/decision, failure to maintain airspeed, and inadvertent stall, with contributing factors of low ceiling, fog, and lack of total instrument time. Occurrence #3 resulted from the uncontrolled descent into terrain (roadway/highway).