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Forum: Tech Log

7th Apr 2019, 16:55

Replies: 48

Ethiopian Prelim Report

Views: 18,276

Posted By safetypee

Mansfield, #42, Your points about the AoA vane...

Mansfield, #42,
Your points about the AoA vane are well made. However for the complete picture it would be necessary to compare vane failure ‘rates’ between NG and MAX. Short of that, 3 failures so...

Forum: Tech Log

5th Apr 2019, 21:54

Replies: 48

Ethiopian Prelim Report

Views: 18,276

Posted By safetypee

Goldenrivet, Gordon, Mansfield, The critical...

Goldenrivet, Gordon, Mansfield,
The critical parameter is the pitch trim position (units) on the FDR; above that are indications of electrical input. The top line being the pilots yoke switches...

Forum: Tech Log

5th Apr 2019, 17:51

Replies: 48

Ethiopian Prelim Report

Views: 18,276

Posted By safetypee

Mansfield, Further to your views on EASA #13,...

Mansfield,
Further to your views on EASA #13, see https://www.pprune.org/showpost.php?p=10439906&postcount=3374

The safety case considered normal trim, at or near trim to maintain trim. The...

Forum: Tech Log

5th Apr 2019, 14:14

Replies: 48

Ethiopian Prelim Report

Views: 18,276

Posted By safetypee

Mansfield, turning your ‘elephant’ around,...

Mansfield, turning your ‘elephant’ around, consider the actual threat to safe flight. The aircraft was not flyable because of the trimmed condition; the abnormal trimmed state.

AoA failure in...

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