SQ Incident?
 

Anyone hear the strong rumour about an EGPWS incident at Lahore involving an SQ aircraft recently? The rumour mentions 300' AGL!

yep. Got a false glide path signal which automatics didn't capture so appartently he went down on v/s. Was 500' agl with 5 miles to run!

Hmmm... so much for ignoring a GP check eh? :eek:

That happens at the OM, still .9nm away...:E

The KIWIs did a similar thing at an island with a dodgy GP.

That's why ALL ILS's should have a DME - take note, Airservices Australia.:=

Right, so the aircraft should have been no lower than platform altitude for one more mile, right? Please explain. :confused:

If you're cleared for an ILS approach and discover that the G/S is inop, can you just revert to a LLZ/DME without clearance?

TB

The answer is yes, you can; you will set a new higher DA/DH and use the advisory check distances against altitude/ height.

Notify ATC of the lack of glidepath. If the fault is on the ground, the Tower will have received a warning of the failure.

My SQ 777 that I personally own:p, has never had any problems with the gs receiver---but then again it's only 15" long and with an AUW of about 0.3 Kg:}

Not a bad idea to always brief GS out minimum I always thought

The rumour that I heard made no mention of a false G/S signal. It just said that the crew descended too early because they weren't aware of the G/S intercept being closer to the field due the airport elevation. Also heard that they ignored the EGPWS warnings for a considerable time.

Capn Bloggs Re GS check – “That happens at the OM …”
The primary purpose of markers / fix (or distance) checks during an approach is to determine the ‘acceptability’ of the vertical approach path / confirm your location with respect to that path. For safety, where a check involves altitude and distance, the altitude must take priority – it’s the early contact with ground that you wish to avoid, not the determination of distance to the airfield.

Dream Land states the required safety defence, check the altitude first and do not descend below it until the appropriate ‘fix’. In the specific case of an ILS I would suggest a climb, then determine the cause of the discrepancy – don’t trouble shoot at minimum altitudes, and don’t continue with an alternative procedure by assuming that the LOC (and your position relative to the airport) is correct – climb, check, rebrief, and recommence the approach. Beware the unexpected / unexplained; if the EGPWS alerts / warns - climb.

uncle dickie, you probably meant the above, but stating the check correctly (altitude vs distance tables) might aid correct use as well as recalling the check from memory, thus avoiding any complacency / omission of routine actions and checks.

Safety examples ‘EPGWS events and analysis’.
Also see ‘Thai Air B777 Melbourne NDB approach’.

I don't think the Air New Zealand crew got anywhere near 500' AGL. They realised quite early on that the GS was wrong.

"Approximately 6 miles from the runway threshold a missed approach was carried out from an altitude of about 400 feet."

from here:

http://www.icao.int/icao/en/ro/apac/cnsmet_sg6/wp39.pdf

To all, out of interest, does your company have a SOP glideslope check that uses the DME at say 10DME (or the distance when the ILS starts) as opposed to the Outer Marker?

From the official report

I think the rumour has a alot of foundation and has given the chaps on the 4th floor quite a shock, not only in how it happened but what happened after the event!!

Yes, that's SOP in our cmpny.

Q: Aren't SQ Aeroplanes equipped with Enhanced GPWS, showing contour layers?

SQ emergency in DME
 

Heard about SQ declaring emergency landing into DME.

Anyone has info on that?

I was on the plane
9V-SYI
http://aviaforum.ru/attachment.php?a...2&d=1203758692

After landing captain told by announcement about engine malfunction. He shut both engines after landing. Taxi to gate by tow car.

The 777 is still in DME. Another plane from SIN to take passengers expected to be arrived at DME about 8 p.m. local.

@ DME
 

Crew reported problems with #2 engine on initial descent through FL260, no emergency declared, landed at UUDD without incident.

SQ 777 diverted to CGK
 

Anyone knows what happened to this 777 ?

It was a schedule flight from SIN - PER, but according to www.singaporeair.com it made a un-schedule stop in CGK for an hour.