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Sep 1

OEI GA F30

Imagine engine failure on final approach (configured to flaps 30). Decision is made to stay on flaps 30, what should be the correct procedure in case of go around in this config? I heard about 2 ways of doing it, which one is correct?


1) Go around, Flaps 15, shallow climb - gear up, accelerating to white bug (Vref+20), then maintaining white bug speed and climbing to missed approach altitude, 1000 AAL acceleration and flap retraction in sequence 5-1-UP

2) Go around, Flaps 15, shallow climb - gear up, accelerating to white bug (Vref+20), when on speed select F1, and continue climb on F1 to missed approach altitude, 1000 AAL acceleration and flap retraction to UP.


thanks

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Good evening, Matt!

what do you think about to use in this situation FCTM Engine Failure During Go-Around and Missed Approach strategy?

1
Sep 2Edited: Sep 2

Hi Matt,

Prior to dispatch, you need to meet the dispatch criteria for minimum approach climb gradient (2.1%) in the following configuration:

  • One engine inoperative

  • Flaps 15

  • Gear up

PANS-OPS missed approach climb gradient is normally 2.5% that means that your approach climb gradient shall be 2.5%. Now let's say that your actual performance is just that and you go-around single engine at minimums.

  1. TO/GA

  2. Flaps 15

  3. Gear Up

  4. According to FCTM "Maintain flaps 15, VREF 30 or 40 plus wind additive (5 knots minimum) speed and limit bank angle to 15° until initial manoeuvring is complete and a safe altitude is reached."

  5. Since this speed provides you with less than full manoeuvring margin, I would accelerate to F15 manoeuvring speed once you have transitioned into GA

  6. You need to keep this configuration until MSA or MAA (Missed Approach Altitude) if you start to accelerate at 1000 AAL you will level off and thus possibly bust the 2.5% missed approach climb gradient

  7. Once above MSA or MAA perform normal flap retraction sequence F15, F5, F1, FUP


-Petr