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ASN Wikibase Occurrence # 199972
Last updated: 7 April 2021
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Time:23:45 LT
Type:Silhouette image of generic B748 model; specific model in this crash may look slightly different
Boeing 747-87UF
Owner/operator:Atlas Air, opf Cathay Pacific
Registration: N856GT
C/n / msn: 37561/1442
Fatalities:Fatalities: 0 / Occupants: 4
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:nr Hong Kong-Chek Lap Kok International Airport (HKG/VHHH) -   Hong Kong
Phase: Initial climb
Departure airport:Hong Kong-Chek Lap Kok International Airport (HKG/VHHH)
Destination airport:Anchorage-Ted Stevens International Airport, AK (ANC/PANC)
Investigating agency: CAD Hong Kong
Cathay Pacific flight CX86, operated by Atlas Air, overflew mountainous terrain below the Minimum Sector Altitude shortly after takeoff from Hong Kong-Chek Lap Kok International Airport.

The Pilot-in-Command acted as the Pilot Flying (PF) while one of the First Officers acted as the Pilot Monitoring (PM). Another operating First Officer was in the cockpit observer seat during the departure. The flight was cleared by the Air Traffic Control (ATC) to depart from runway 07R via the RASSE 1E RNAV Standard Instrument Departure (SID). This calls for a heading of 073 after takeoff, heading towards the PORPA waypoint. After PORPA the aircraft would have to turn right, after passing the mountainous area on Lantau Island.
At 23:44 hours, shortly after the aircraft took off from runway 07R, the aircraft deviated to the right of the published SID track and headed towards the high ground at Lo Fu Tau of the Lantau Island. At 23:45 hours, the ATC informed the flight crew that the aircraft was off track and instructed the crew to turn left to resume the RASSE 1E SID. Shortly afterwards, ATC informed the flight crew of terrain to the right of the aircraft and instructed the crew to expedite the climb to 5,000 feet.
At approximately 2,000 feet, the Enhanced Ground Proximity Warning System (EGPWS) on board the aircraft was triggered with Mode 2A visual and aural warning "Terrain, Terrain; Pull Up" annunciated. In response, the PF reacted and the aircraft turned left away from the high ground. The aircraft evaded the high ground by approximately 670 feet. Subsequently, the aircraft re-established the SID track at approximately time 15:46 hours and continued without further incident. There was neither injury to personnel nor damage to the aircraft involved and no other air traffic was affected.
The meteorological aerodrome weather report for VHHH at time 15:47 hours indicated that the wind was from 110 degree at 12 knots. The visibility was 10 km, with few clouds at 1,500 feet and scattered clouds at 2,800 feet. The temperature was 30 degrees Celsius with dew point at 25 degrees Celsius. Neither low level windshear nor turbulence warning was reported around the time
of the incident.

Incident 4 June 2017: A320 premature departure turn towards terrain, below MSA at Hong Kong


Photo of N856GT courtesy

Los Angeles - International (KLAX / LAX)
27 March 2019; (c) Gerard Helmer

Revision history:

26-Sep-2017 18:17 harro Added
26-Sep-2017 18:40 harro Updated [Source]
17-Dec-2017 10:14 harro Updated [Time, Total occupants, Source, Narrative]

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