Virgin Atlantic B789 enroute on Apr 16th 2019, unexpected climb of cabin altitude

Last Update: April 23, 2019 / 20:18:58 GMT/Zulu time

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Incident Facts

Date of incident
Apr 16, 2019

Classification
Incident

Flight number
VS-20

Aircraft Registration
G-VBEL

ICAO Type Designator
B789

A Virgin Atlantic Boeing 787-9, registration G-VBEL performing flight VS-20 from San Francisco,CA (USA) to London Heathrow,EN (UK), had step climbed to FL410 and was enroute about 210nm southeast of the soutern tip of Greenland when the crew declared PAN PAN reporting problems with the cabin pressure and requested to descend back to FL390. The aircraft continued to London for a safe landing about 3 hours later.

The Canadian TSB reported the aircraft had been dispatched under minimum equipment list requirements with the cabin air compressor on the left hand air conditioning system inoperative. The TSB wrote: "Section 2 of the B787 MEL notes that the cabin altitude, which is normally 6000 feet, may rise to 8000 feet with an inoperative pack or CAC in degraded operations. After review of this section of the MEL, the flight crew continued to destination without further incident."
Incident Facts

Date of incident
Apr 16, 2019

Classification
Incident

Flight number
VS-20

Aircraft Registration
G-VBEL

ICAO Type Designator
B789

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