PPRuNe Forums - View Single Post - Korean Air A330 off runway in Phillipines
Old 25th Oct 2022, 11:54
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Ex Douglas Driver
 
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Originally Posted by fdr
That would put them in a bad position without doubt.

Both T/Rs appear to be stowed, which is odd. The main doors if they are open is definitely indicating a Green system failure which is going to be a pain, but would have been manageable, assuming that the BSCU was working, and there were no other failures. The blue and yellow are the TR powers respectively for Left and right engines... and as they are not extended, on an overrun, and a very slow deceleration, that suggests the guys had a compound problem. The fact they landed on an airport suggests that it wasn't loss of all 3 hydraulics... so am thinking Green + BSCU (G/A Sensing failure) which gives open inner gear doors, no T/R's, no ground spoilers, and alternate brakes only without anti-skid. That would put the aircraft in the weeds in most cases, outside of maybe Edwards.

Losing a HYD and another sensing system may suggest that the second landing was less than stellar, but, if no one died in this, am gonna give some latitude to the guys. The second landing may have some echoes of Iberia's -600... Going to be interesting to get the full report.... except it is CAAP land. KCASA will have more on it probably.

It's the LGCIUs that give the ground/flight sensing - which following a double failure, could lead to a manual gear extension and a landing with no reversers.
There is a procedure for double LGCIU failure however this shouldn't contribute to a degradation of wheel braking systems.
The accident report will make for enlightening reading.

Last edited by Ex Douglas Driver; 25th Oct 2022 at 12:05.
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