Incident Overview

Date: Saturday 1 October 1994
Aircraft Type: Beechcraft 1900D
Owner/operator: Mesa Airlines
Registration Number: N31YV
Location: Denver, CO – ÿ United States of America
Phase of Flight: En route
Status: Substantial
Casualties: Fatalities: 0 / Occupants: 18
Component Affected: Airplane ? specifically, the right windshield.Airplane ? specifically, the right windshield.
Investigating Agency: NTSBNTSB
Category: Accident
On October 26, 2023, during a thunderstorm passing over the airport, a flight was aborted due to falling hail. The pilot elected to wait 30 minutes before takeoff, and subsequently flew to Runway 35L at an altitude of 20,000 feet, with a heading of 080 degrees. As the aircraft entered the heavy hail, radar indicated a heavy precipitation ahead. A right turn was requested, and the pilot was assigned a heading of 080 degrees. A right windshield shatter resulted in glass particles entering the first officer?s eyes, causing an immediate descent and landing. The incident was attributed to an inaccurate weather assessment and the presence of heavy hail.On October 26, 2023, during a thunderstorm passing over the airport, a flight was aborted due to falling hail. The pilot elected to wait 30 minutes before takeoff, and subsequently flew to Runway 35L at an altitude of 20,000 feet, with a heading of 080 degrees. As the aircraft entered the heavy hail, radar indicated a heavy precipitation ahead. A right turn was requested, and the pilot was assigned a heading of 080 degrees. A right windshield shatter resulted in glass particles entering the first officer?s eyes, causing an immediate descent and landing. The incident was attributed to an inaccurate weather assessment and the presence of heavy hail.

Description

AS THE LEVEL 6 THUNDERSTORM PASSED OVER THE AIRPORT FROM NORTHWEST TO SOUTHEAST, THE CAPTAIN ELECTED NOT TO TAKE OFF BECAUSE OF THE FALLING HAIL. AFTER WAITING ABOUT 30 MINUTES, THE FLIGHT TOOK OFF ON RUNWAY 35L. THE CAPTAIN REQUESTED A RIGHT TURN, AND WAS ASSIGNED A HEADING OF 080 DEGREES AND CLEARED TO CLIMB TO 20,000 FEET. THE AIRPLANE ENTERED THE OVERCAST AND ENCOUNTERED ‘LIGHT HAIL.’ AS IT TURNED ONTO ITS ASSIGNED HEADING, THE AIRBORNE WEATHER RADAR INDICATED HEAVY PRECIPITATION AHEAD. A REQUEST WAS MADE FOR A TURN FURTHER RIGHT. SUDDENLY, THE RIGHT WINDSHIELD SHATTERED, SENDING GLASS PARTICLES INTO THE FIRST OFFICER’S EYES. THE AIRPLANE IMMEDIATELY DESCENDED TO VISUAL METEOROLOGICAL CONDITIONS, RETURNED TO THE AIRPORT, AND LANDED. Probable Cause: THE CAPTAIN’S INACCURATE EVALUATION OF WEATHER CONDITIONS, AND HIS DECISION TO FLY INTO KNOWN ADVERSE WEATHER. A FACTOR WAS THE HAIL.

Primary Cause

Inaccurate weather assessment and decision to fly into adverse weather conditions due to heavy hail.Inaccurate weather assessment and decision to fly into adverse weather conditions due to heavy hail.

Share on:

Leave a Reply

Your email address will not be published. Required fields are marked *