In guessing they were assigned the RNAV RASSE 1E since they were filed out over OCEAN after 15Z. The box in the 747-8 would have radius-to-fix capability I would think.
Did some finger trouble drop out PORPA and perhaps LNAV was taking them direct PORSH?
Originally Posted by
catpac
Yep, approx 2800ft 175kts above DB Marina, direct from 07R DER.
Highest surrounding peak on Lantau 3064ft....it nearly was a Polar Near One
The FlightRadar24 .kml data shows them crossing Lantau Highway at 2050 feet (uncorrected):
2017-09-24 15:45:06 UTC
Altitude: 2,050 ft
Speed: 164 kt
Heading: 109°
And Discovery Bay Road at 2675 feet:
2017-09-24 15:45:43 UTC
Altitude: 2,675 ft
Speed: 165 kt
Heading: 100°
Here's the 15Z weather:
VHHH 241500Z 12012KT 090V170 9999 FEW020 SCT030 29/25 Q1009 NOSIG
They must have got an EGPWS warning with a nav display terrain popup on both sides lit up like a Christmas tree, right?
It appears that the hill they passed closest to has an elevation of about 1500 feet from the topo maps.
CX 905 to MNL departing behind Polar was given a tower clearance to maintain 3000 feet and follow the SID which they questioned as being below their terrain minimums. Unfortunately, Polar's departure control conversation on 123.8 does not seem to be available on LiveATC.net.
Was the CVR breaker pulled after an ACARS from Polar flight ops? Or, as with other recent incidents will the recording be overwritten as the crew heads out over the NOPAC to ANC on A590 right now?