SriLankan A333 near Learmonth on Mar 21st 2021, autopilot disconnected, altitude deviation

Last Update: April 29, 2021 / 13:15:24 GMT/Zulu time

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Incident Facts

Date of incident
Mar 21, 2021

Classification
Incident

Flight number
UL-606

Aircraft Registration
4R-ALR

Aircraft Type
Airbus A330-300

ICAO Type Designator
A333

A SriLankan Airlines Airbus A330-300, registration 4R-ALR performing flight UL-606 from Colombo (Sri Lanka) to Sydney,NS (Australia), was enroute at FL390 about 500nm east of Learmonth,WA (Australia) when autopilot #1 disconnected. The aircraft climbed about 725 feet before the crew manually returned the aircraft onto FL390. The aircraft continued to Sydney for a safe landing without further incident about 3.5 hours later.

The aircraft departed for the return flight about 2 hours after landing.

Sri Lanka's AIB rated the occurrence an incident and opened an investigation.
Incident Facts

Date of incident
Mar 21, 2021

Classification
Incident

Flight number
UL-606

Aircraft Registration
4R-ALR

Aircraft Type
Airbus A330-300

ICAO Type Designator
A333

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