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Old 6th Feb 2015, 11:01
  #272 (permalink)  
jimjim1
 
Join Date: Oct 2007
Location: Here
Posts: 963
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False master caution - Flameout?

Since no one else has done it here is a timeline of what appear to me to be the key events.

From posted FDR trace.
@olasec - post presently #243
http://www.pprune.org/rumours-news/5...ml#post8856151

#1 Solid line, Green
#2 Dotted line, Blue
False "Flameout master caution" and consequent autofeather?

52:00 (-38s)
Gear up

52:38 (0s)
Altitude 1350ft
#2 Master Caution - Flameout - but engine was still running, oil pressure NH, NL all not zero.
#2 Feathered
#2 Fuel flow to 250
#2 NL 50%
#2 NH 70%
#2 Oil pressure unchanged
LH Eng Bleed valve closed
#1 Fuel flow rises slightly

52:43 (+5s)
#1 Fuel flow slowly drops to take-off value

52:46 (+8s)
#1 fuel flow slightly below take-off value and stabilises

53:06 (+28s)
#1 Fuel flow rapidly reduces to 500

53:10 - 53:22 (+32s -> +44s)
Altitude 1500ft - Maximum.
#1 Fuel flow smoothly reduces to near ZERO then cuts off.

54:19 (+1m 41s) - A minute later.
#1 Fuel flow +ve but low
#1 ITT rises to near take off value

54:31 (+1m 53s) In the last few seconds - about 4s
#2 Master Caution Flameout OFF
#2 unfeathering
#2 fuel flow rising
LH Bleed valve still closed
#1 oil pressure just below normal
#1 NL rising through 20%
#1 NH rising through 60%

Close but no cigar? Tragic.

Last edited by jimjim1; 6th Feb 2015 at 11:04. Reason: Quoted #2
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