Incident Overview

Date: Friday 18 May 2018
Aircraft Type: Boeing 737-201 Advanced
Owner/operator: Cubana de Aviaci¢n, lsf Global Air
Registration Number: XA-UHZ
Location: 1 km E of Havana-Jos‚ Mart¡ International Airport (HAV/MUHA) – ÿ Cuba
Phase of Flight: Take off
Status: Destroyed, written off
Casualties: Fatalities: 112 / Occupants: 113
Component Affected: Aircraft Structure (particularly the landing gear and its interaction with the runway surface)Aircraft Structure (particularly the landing gear and its interaction with the runway surface)
Investigating Agency: CEIAACEIAA
Category: Accident
On May 21, 2018, a Boeing 737-200, registration XA-UHZ, crashed during takeoff from Havana-Jos‚ Mart¡ International Airport, Cuba. The aircraft, operated by Mexican airline Damojh Aerol¡neas, was carrying 107 passengers and six Mexican crew members. The aircraft broke up and burst into flames after takeoff, resulting in three initial passengers surviving the accident. The aircraft was operating as Global Air, on behalf of Cubana, and began operations in Cuba on May 14, 2018. The flight began with a planned takeoff weight and weight distribution, and the cabin configuration differed from the actual configuration. Calculations indicated a 17.4% CG, while the actual CG was 28.5%, close to the aircraft’s rear limit. Consequently, the horizontal stabilizer trim was set to 5 3/4 units instead of 3 1/4 units, resulting in a significant instability. The flight was cleared to start the engines, and the crew engaged in non-flight related conversations. After takeoff, the aircraft experienced a rapid and uncontrolled descent, culminating in a crash on vegetation near a railway, approximately 40 seconds after lifting off the runway. The crash was likely caused by a combination of factors, including the collapse of the aircraft during takeoff, leading to loss of control due to human error and errors in weight and balance calculations. The CEIAA has attributed the accident to a collapse of the aircraft due to its entry into abnormal positions immediately after separation of the landing gear from the runway surface, which resulted in loss of control.On May 21, 2018, a Boeing 737-200, registration XA-UHZ, crashed during takeoff from Havana-Jos‚ Mart¡ International Airport, Cuba. The aircraft, operated by Mexican airline Damojh Aerol¡neas, was carrying 107 passengers and six Mexican crew members. The aircraft broke up and burst into flames after takeoff, resulting in three initial passengers surviving the accident. The aircraft was operating as Global Air, on behalf of Cubana, and began operations in Cuba on May 14, 2018. The flight began with a planned takeoff weight and weight distribution, and the cabin configuration differed from the actual configuration. Calculations indicated a 17.4% CG, while the actual CG was 28.5%, close to the aircraft’s rear limit. Consequently, the horizontal stabilizer trim was set to 5 3/4 units instead of 3 1/4 units, resulting in a significant instability. The flight was cleared to start the engines, and the crew engaged in non-flight related conversations. After takeoff, the aircraft experienced a rapid and uncontrolled descent, culminating in a crash on vegetation near a railway, approximately 40 seconds after lifting off the runway. The crash was likely caused by a combination of factors, including the collapse of the aircraft during takeoff, leading to loss of control due to human error and errors in weight and balance calculations. The CEIAA has attributed the accident to a collapse of the aircraft due to its entry into abnormal positions immediately after separation of the landing gear from the runway surface, which resulted in loss of control.

Description

The Boeing 737-200, registration XA-UHZ crashed on takeoff from Havana-Jos‚ Mart¡ International Airport, Cuba. The aircraft came down in vegetation near a railway outside the airport, broke up and burst into flames. There were 107 passengers on board along with six Mexican crew members. Three passengers initially survived the accident. One survivor died on May 21 and a second died on May 25. The aircraft was owned and operated by Mexican airline Damojh Aerol¡neas, operating as Global Air, on behalf of Cubana. XA-UHZ began its operations in Cuba starting May 14, 2018. On May 18, the day of the accident, the aircraft flew a trip from Havana to Santiago de Cuba and back, arriving at Havana at 10:20 hours local time. The next trip to be flight 972 to Holgu¡n, Cuba, with a scheduled departure time of 11:00 hours. In the preparation for this flight calculations were made of takeoff weight and weight distribution. The cabin configuration on the load sheet differed from the actual configuration of XA-UHZ. Based on these data the Centre of Gravity (CG) was calculated to be at 17.4%. Actually it was 28.5%, close to the rear limit of the aircraft, which is 29%. Consequently the horizontal stabilizer trim was set at 5 3/4 units, instead of 3 1/4 units. At 12:00 hours the flight was cleared to start the engines. Subsequently the aircraft was cleared to taxi to runway 06 for departure. In between working the checklists, the crew were engaged in non-flight related conversations. After receiving clearance for takeoff, the aircraft began to accelerate down runway 06. As soon as it rotated from the runway, the aircraft attained a nose-high and right wing low attitude. The GPWS warning began to sound in the cockpit: “Bank angle, bang angle!” The bank angle reached 35ø before the aircraft rolled back. It banked right and left several times with the nose reaching about 30 degrees nose up. The crew issued a Mayday call. The aircraft lost speed and began an uncontrolled descent until it impacted the ground about 40 seconds after lifting off the runway. Most likely causes (translated from Spanish): The CEIAA has considered that the most probable cause of the accident was the collapse of the aircraft, as a consequence of its entry into abnormal positions immediately after the separation of the landing gear from the runway surface (Lift off) during take-off, which led to the loss of control due to a chain of errors, with a preponderance in the human factor. Contributing factors: – inconsistencies in crew training; – errors in weight and balance calculations; – low operational standards manifested in flight.

Source of Information

http://www.radiococo.icrt.cu/noticias/sociedad/cae-avion-la-habana-tras-despegar-del-aeropuerto-jose-marti/, https://www.gob.mx/sct/prensa/accidente-de-la-aeronave-xa-uhz-ocurrido-el-dia-18-de-mayo-de-2018http://www.radiococo.icrt.cu/noticias/sociedad/cae-avion-la-habana-tras-despegar-del-aeropuerto-jose-marti/, https://www.gob.mx/sct/prensa/accidente-de-la-aeronave-xa-uhz-ocurrido-el-dia-18-de-mayo-de-2018

Primary Cause

Collapse of the aircraft during takeoff, resulting in loss of control due to human error and errors in weight and balance calculations.Collapse of the aircraft during takeoff, resulting in loss of control due to human error and errors in weight and balance calculations.

Share on:

Leave a Reply

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