falcon20driver
Well-known member
- Joined
- Jan 31, 2003
- Posts
- 533
HawkerF/O said:That's what makes this accident so interesting. Everyone talks about what great pilots these guys were, by the book all the time, etc, but from what data is known, that was not the case here, and who knows the reason why. There are only 2 possible scenarios here. I have not seen the CVR data:
1) They had an emergency they did not tell ATC about requiring they get on the ground ASAP
2) The F#ucked up
As for the TAWS: Lets not forget that the TAWS does not always work like it should. I think there have been instances when we have all been surprised to hear the TAWS go off on nice VMC days when all is normal. Some systems are a bit more sensitive than others, and especially when doing visual approaches with the LOC tuned it, you drop a little below the G/S (1/2 dot) so you dont eat up 1000ft of pavement or you manuver off the G/S and onto the VASI, that thing can start going nuts.
The airport is at 331 MSL. The radar will work well below 1000 AGL. The aircraft was at 200+Knots across the ground at 300ft according to the flightaware program the day of the crash. Looking up other aircraft that same day going to the same airport, their speeds all appeared normal, so I don't think the radar broke when they came into land, then fixed itself after the airport reopened. If conditions are normal (A/C is operating normally) and that is your G/S at 300ft you should not attempt to land in an aircraft that has REF speeds 70-100 Knots slower than what you are flying going into a 4600ft strip! Even with no G/S readout, the rate of decent required to maintain the Glideslope and/or VASI (1000FPM as opposed to 570FPM) would have been a big clue that something is not on the up and up.
Here is a return from a C560 (N68CK) tonight that went into this same airport and it is the same type of aircraft. The data is accurate for this type of aircraft.
http://flightaware.com/live/flight/N68CK/tracklog
That is a link for the same type of aircraft that had the accident. It flew into CRQ tonight, and the link will be good for 24Hours as long as it does not take off again. At 900ft (600 AGL) the speed is 112. At 1500 feet they were down to 138.
That 300' and 227 groundspeed is not on final, it's while they're smashing into the building. Field elevation is 331' and those altitudes are radar which are MSL, if you plot the coordinates it is southwest of the field 1 mile.
Radar info from the FAA, the coordinates are next to the speed/altitude on http://flightaware.com/live/flight/N86CE/tracklog
09:33AM 33 12N 117 00W 295 10000'
09:34AM 33 10N 117 04W 314 8100'
09:34AM 33 10N 117 05W 304 7100'
09:35AM 33 08N 117 09W 307 5600'
09:35AM 33 09N 117 11W 262 4100'
09:36AM 33 08N 117 15W 277 2300'
09:36AM 33 08N 117 15W 209 1200'
09:37AM 33 07N 117 18W 227 300'
Those coordinates show a 7 mile final at 4100' MSL (3800' AGL) and 262 kts groundspeed, a two mile final at 2300' MSL (2000' AGL) doing 277 kts over the ground, and a one mile final at 1200' MSL (900' AGL) doing 209 over the ground, and the next and last fix is at field elevation doing 227 kts over the ground a mile southwest of the field still on radar while they are crashing. Mighty smart to continue that approach, a mile final at 900' agl doing 200 knots on a 4000' runway, what were they thinking.
Enter the above coordinates in the site below and it shows the picture of where they were.
http://map.aeroplanner.com/mapping/chart/smartchart.cfm