ILS 23 in BUF
02-18-2009 | 09:57 PM
#11
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From: I AM NOT A KAPTAIN, i keep the right seat, nice and toasty
02-19-2009 | 04:11 AM
#12
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From: blueJet
If BUF ILS 23 has a lethal defect I'd expect more than an internal memo circulating around one airline. And maybe lots of lawsuits.
02-19-2009 | 04:26 AM
#13
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From: rear GV
Just had this sent to me.....
Safety Alert 2009-1
BUF ILS Hazard
BUF ILS Hazard
SWAPA Pilots,
There is a potentially significant hazard concerning the ILS to runway 23 in BUF.
Information has been received indicating it is possible to obtain a significant nose pitch up, in some cases as much as 30 degrees, if the glide slope is allowed to capture before established on centerline. Pilots who are preparing to configure and land have the potential to experience abrupt pitch up, slow airspeed, and approach to stall if conditions present themselves in a certain manner.
This effect is the result of an earthen obstruction close enough to the ILS to affect the integrity of the glide slope signal. This has resulted in the issuance of an advisory given on ATIS which states that "the ILS Glide Slope for runway 23 is unusable beyond 5 degrees right of course."
When attempting to intercept the runway 23 ILS from right traffic, the ILS glide slope indication may read full deflection down. Just prior to intercept it may then move up in such as manner as to enable approach mode to capture in such a way as to result in a nose up pitch and loss of airspeed.
Southwest Airlines has issued a notice reading: "Until further notice, when executing the KBUF ILS/LOC Runway 23, DO NOT select Approach Mode until established on the localizer inbound."
This issue is being addressed on several levels in an attempt to address procedures, facilities, and communication regarding this matter. If you experience any issues related to this, please file an ASAP form and or call SWAPA Safety at SWAPA toll free.
Thanks for posting this. This does make sense and maybe that is why they have the note in the atis about the glideslope. After all i will be flying into buf tonight probably on this approach in the snow.
02-19-2009 | 06:32 AM
#15
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From: none ya...
I have to believe that the NTSB is evaluating every possible scenario, and if this really is on ATIS, im sure they are looking into it also. this is just the thought that hit me when I read this, I realize this is all probably coincidence, but wow the timing makes you go HMMMM
Last edited by TPROP4ever; 02-19-2009 at 06:43 AM.
02-19-2009 | 06:33 AM
#16
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The dash 8 will not even capture the glideslope unless the loc is already captured anyway.
Even then it would not pitch up 30 degrees to capture either. If I recall correctly it doesnt even capture until it is within a 1 1/2 dot scale or so.
Even then it would not pitch up 30 degrees to capture either. If I recall correctly it doesnt even capture until it is within a 1 1/2 dot scale or so.
02-19-2009 | 06:41 AM
#17
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From: none ya...
Cool thanks for clearing that up, I kinda wondered but that makes sense
02-19-2009 | 06:57 AM
#19
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From: A-320
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