PPRuNe Forums - View Single Post - THR vs THR REF on a go around (744/8)
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Old 2nd May 2021 | 20:02
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RandomPerson8008
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Joined: Mar 2011
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Perfect, the question came up in regard to the windshear recovery maneuver. There has been some debate about whether or not it is prudent to press a TOGA switch a second time if windshear is encountered after already having pressed it once to initiate a go-around. It seems to me that getting THR REF on the second press would be beneficial. On the other hand, in a windshear warning (decreasing performance) event, it is unlikely that 2000 fpm will be attainable so the autothrottle will already be commanding thrust up to the TOGA limit with THR annunciated as the autothrottle FMA. The FCOM procedure does say that "push either TOGA switch" is part of the windshear recovery maneuver, it does not grant leeway to skip that step if TOGA had already been pressed to initiate a go-around.
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