PPRuNe Forums - View Single Post - UA497 Smoke, Emergency Landing and Evacuation
Old 10th Apr 2011, 14:52
  #52 (permalink)  
Airbus_a321
 
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maybe they were a little bit too fast with the procedure and therefore rushed into the procedure and created the "homemade" mess.

According the press release:
the preliminary examination has not revealed any signs of burning, indications of smoke or other anomalous system findings.
neither crew member recalled smelling smoke or fumes during the flight.
The QRH says clearly:

AVNCS SMOKE - if perceptible smoke apply.....do this and this and that etc...

further down in the procedure:

QRH "...at any time of the procedure if smoke becomes the greatest threat
ELEC EMER CONFIG.....CONSIDER

QRH "...Refer to the end of the procedure to set ELEC EMER CONFIG..."

Now I guess they rushed into and applied this procedure, although there was no smoke.


@firesysok
it's possible they did de-power the airplane as directed but the RAT deployed for reasons unknown
... the RAT deployed IMHO not for reasons unknown, but for reasons VERY WELL KNOWN.... because

to set ELEC EMER CONFIG you must switch:

- EMER ELEC GEN 1.....OFF
- EMER ELEC PWR ..... MAN ON (...and now the RAT is already in the air.....)
now the QRH says
WHEN EMER GEN AVAIL:
- APU GEN....OFF
- GEN 2.......OFF

et voila, ...now you have to deal with the "$hit" that you are in

ELEC EMER CONFIG ....and this is not a nice situation. not at all.

I agree with Nigel #39

and I think they did not ....a great job as well....(@DingerX)

wait and see
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