Atlas B763 over Greenland on Dec 31st 2025, spoiler extended uncommandedly

Last Update: February 3, 2026 / 19:30:08 GMT/Zulu time

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Incident Facts

Date of incident
Dec 31, 2025

Classification
Incident

Airline
Atlas Air

Flight number
5Y-8713

Aircraft Registration
N640GT

Aircraft Type
Boeing 767-300

ICAO Type Designator
B763

An Atlas Air Boeing 767-300, registration N640GT performing flight 5Y-8713 from Frankfurt Hahn (Germany) to Seattle,WA (USA), was enroute at FL350 over southern Greenland when a left outboard spoiler extended fully and uncommandedly resulting in roll. The captain disconnected the autopilot, corrected the bank angle manually, declared Mayday and diverted to Keflavik (Iceland) where the aircraft landed safely about 2 hours later.

The Canadian TSB reported the aircraft reached a maximum bank angle of 18.63 degrees before recovery. The spoiler remained extended until the aircraft descended through FL190, then retracted. The TSB stated: "Maintenance replaced the #2 spoiler power control actuator and the 1L spoiler control module, with operational and leak checks satisfactory."

The aircraft remained on the ground in Keflavik until Jan 9th 2026.
Aircraft Registration Data
Registration mark
N640GT
Country of Registration
United States
Date of Registration
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Manufacturer
BOEING
Aircraft Model / Type
767-3S1
Number of Seats
ICAO Aircraft Type
B763
Year of Manufacture
Serial Number
Aircraft Address / Mode S Code (HEX)
Engine Count
Engine Manufacturer
Engine Model
Engine Type
Pounds of Thrust
Main Owner
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Incident Facts

Date of incident
Dec 31, 2025

Classification
Incident

Airline
Atlas Air

Flight number
5Y-8713

Aircraft Registration
N640GT

Aircraft Type
Boeing 767-300

ICAO Type Designator
B763

This article is published under license from Avherald.com. © of text by Avherald.com.
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