CU972
2018-MAY-18 · Near José Martí International Airport, Havana, Cuba

Cubana de Aviación — Flight CU972

Cubana de Aviación Flight 972, operated by Global Air, crashed shortly after takeoff from Havana when the flight crew failed to correctly calculate the aircraft's weight and balance. The aircraft was loaded such that its center of gravity was near the aft limit, but the crew used incorrect data to set the horizontal stabilizer trim. Upon liftoff, the aircraft entered an extreme nose-high attitude, stalled, and impacted the ground approximately 40 seconds later. Of the 113 people on board, only one passenger survived.

Aircraft
Boeing 737-201 Advanced
Registration
XA-UHZ
Phase
Cause
Souls on Board
113
Fatalities
112
Origin → Dest
José Martí International Airport, Havana, Cuba → Frank País Airport, Holguín, Cuba
Report

Investigation Summary

The aircraft, a 39-year-old Boeing 737-200, was being operated by the Mexican charter company Global Air (Damojh Aerolíneas) under a wet-lease agreement for Cubana de Aviación. Investigation revealed that the load sheet provided to the crew contained significant errors: the cabin configuration on the sheet did not match the actual layout of XA-UHZ, and the weight of luggage and fuel was incorrectly recorded. While the crew calculated a Center of Gravity (CG) of 17.4 percent, the actual CG was 28.5 percent, which is nearly at the aircraft's rear limit of 29 percent. Based on their incorrect calculations, the pilots set the stabilizer trim to 5 3/4 units instead of the required 3 1/4 units. This configuration caused the aircraft to rotate aggressively upon liftoff. The crew was also noted to be engaged in non-flight related conversations during taxi, which may have contributed to a lack of focus on the critical weight and balance discrepancies.

Final Conclusions

The Comisión de Investigación de Accidentes e Incidentes de Aviación (CEIAA) concluded that the most probable cause was the aircraft entering abnormal attitudes immediately after liftoff, leading to a loss of control. This was the result of a chain of human factor errors, specifically inconsistencies in crew training, errors in weight and balance calculations, and low operational standards during the flight. The final report was completed in mid-2019.

Photographic Evidence (1)

Boeing 737/2 of Avolar at San Jose-Juan Santamaria,Costa Rica ,06/03/11.
© Alec Wilson from Khon Kaen, Thailand · Wikimedia Commons

Video Analysis

Cubana de Aviación Flight 972 ( Boeing 737 Crashed to ... — On May 18, 2018, a 39-year-old Boeing 737-200 crashed shortly after takeoff from Havana, Cuba, resulting in 112 fatalities.

If playback is blocked, the owner has disabled embedding — use the link above.

Airframe & Maintenance

Airframe Hours
69,596
Cycles
70,651
Engines
Pratt & Whitney JT8D-17

Crew Experience

Captain Jorge Nuñez Santos

Total hours
16,655

Age 53

First Officer Miguel Arreola Ramírez

Total hours
2,314

Age 40

Systems & Failure Modes

i

Horizontal Stabilizer Trim

Used to maintain the aircraft's pitch attitude; it was set to 5 3/4 units based on incorrect weight data, causing an excessive pitch-up on rotation.

i

GPWS

The Ground Proximity Warning System alerted the crew to the excessive bank angle during the brief flight.

Interesting Facts

  • 01The aircraft was 39 years old at the time of the accident.
  • 02The actual takeoff weight was approximately 104,000 pounds, while the load sheet stated 99,900 pounds.
  • 03The center of gravity was at 28.5 percent, just 0.5 percent away from the aft limit.
  • 04Global Air had its operations suspended by Mexican authorities three days after the crash.
  • 05The aircraft had previously been banned from Guyanese airspace in 2017 due to overloading issues.

Safety Actions & Advisories

Operational Audit

Mexico's National Civil Aviation Authority (DGAC) launched an operational audit of Global Air to verify regulatory compliance.

Suspension of Operations

Mexican authorities temporarily suspended Global Air's operations on May 21, 2018, following the accident and emerging safety concerns.

Known Controversies & Unanswered Questions

Premature Cause Release by Global Air

Reference ↗

Global Air released a statement blaming pilot error before the official investigation was complete, leading to criticism from the Mexican pilots union (ASPA) that the airline was protecting its own interests.

Location

Near José Martí International Airport, Havana, Cuba · 22.9914, -82.3911

ACCIDENT SITE · Coordinates taken from the entered by an editor.

Case File History

  1. CorrectionUpdated event timeline.
  2. CorrectionUpdated event timeline.

Related Cases

Case ID · cubana-972-2018Last updated · Filed

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