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Question for 737 pilots

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Dangerkitty said:
That wasn't due to airframe ice. The engine's iced up on the ground when the crew didn't turn on the engine anti-ice. Thus, on take off the EPR's read artificially high and the aircraft took off with about half of what takeoff power should have been.


You'd think any competent crew would have X-checked the EPR with EGT, fuel flow, and N1, not to mention the easily noticable sensation of accelrating very slowly! There was a near accident in some pacific island when a 732 had the EPR probes (both) covered by some fine powder due to some kind of mining nearby and they cleared the rocks off the dep end by some 5 to 10 feet!
 
PAPA FOX! said:
You'd think any competent crew would have X-checked the EPR with EGT, fuel flow, and N1, not to mention the easily noticable sensation of accelrating very slowly! There was a near accident in some pacific island when a 732 had the EPR probes (both) covered by some fine powder due to some kind of mining nearby and they cleared the rocks off the dep end by some 5 to 10 feet!

If you listen to the CVR tapes you can hear the FO state a few times during the takeoff roll that something doesn't look right. He then kinda talks himself into thinking everything is OK. The rest is history.
 
PAPA FOX! said:
You'd think any competent crew would have X-checked the EPR with EGT, fuel flow, and N1, not to mention the easily noticable sensation of accelrating very slowly!

They would, these guys didn't. If you ever listen to the CVR stuff from Air Florida, they make some comment about how engine ice and ice protection in general is just a myth.... There is a whole discovery channel show about the crash and rescue. Gross pilot error.

Word-
 
Here's the article about the above incident. Brace yourself because the end of the article will ANGER you very much.
 
Launchpad said:
PAPA FOX! said:
If you ever listen to the CVR stuff from Air Florida, they make some comment about how engine ice and ice protection in general is just a myth.... There is a whole discovery channel show about the crash and rescue. Gross pilot error.

Word-

I don't think that was jist of what was said on the CVR. I believe their comments were directed to the ground de-icing ops in general, which at the time, weren't organized quite the same way as they are today.

CAL had somewhat of a similar incident out of KDEN back when they had a hub there (icing wise, not crew wise, that is)

But I agree...if your AC uses EPR to set TO power, you should know a ballpark N1 number that is roughly equal to TO power as a cross check. Not just ice, but any piece of crud can fly up into the EPR probe and give you a false reading.

Nu
 

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