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Technical Discussions

Place to share and discuss your technical questions

1 2			Recent Activity

Welcome to Technical Discussions! Community Rules Petr Smejkal Dash Discussion	0	2	Jul 22, 2020

New NNC/L ENG FIRE Cecilia Marx Discussion	2	0	Apr 6

Landing Gear Transfer Unit sveneric22 Discussion	2	1	Mar 9

What will happen if I put BAT SWITCH off in flight ? ASHRAFUL HOQUE Question	2	0	Mar 9

When using EAI or WAI, operationally speaking, why adding 10kt only for flaps 15 landings and not for flaps 30/40 landings? Cecilia Marx Question	0	0	Feb 25

Loss of both engine driven gen on takeoff roll ...what should I do ? Reject or continue? ASHRAFUL HOQUE Question	2	0	Jan 12

Hydraulics: Why isn’t there any « Overheat » alarm for EDP (only for EMDP)? Cecilia Marx Question	3	0	Jan 28

Cabin temp hot NNC or PACK NNC why R recirculation fan AUTO and L recirculation fan OFF adrien12 Discussion	3	0	Jan 18

Why DO NOT ARM THE AUTOBRAKE in Ditching Checklist? Begad Khallaf Question	2	0	Jan 16

FLT ALT 00000 Dumbojet Discussion	0	0	Jan 6

For the B738: In case of BATTERY DISCHARGE light illuminates, then loss of battery power, will the HOT BAT BUS be powered? (Fire extingui) Soren Christensen Question	14	3	Dec 11, 2020

Cabine temp hot NNC - why 290 kts at level off? Jakub Question	2	0	Nov 25, 2020

PTU automatic operation domenicosimone94 Question	5	0	Oct 13, 2020

Why do we need to close Pack switch (affected side), Isolation Valve and APU Bleed Air switch in case of Engine Fire? Artem Rassokha Question	2	0	Oct 13, 2020

DEU failure, why above fl220 no effect on ap and fd, but below fl 220 pitch command is removed and vnav vs lvl chg n/a on failed side? domenicosimone94 Question	0	0	Sep 29, 2020

Spar fuel valve Kok Kok Discussion	2	0	Sep 2, 2020

1. What is the difference between the reverse thrust detents and are there any visual indications (say N1) to differentiate between them? stevejohnhughes Question	2	0	Sep 1, 2020

ERR7 no Fuel QTY Pablo Farias Dezontini Discussion	0	0	Aug 8, 2020

Hello pilot colleagues (B737CL/NG) In case of double engine failure (with the APU u/s), how can I operate flaps, landing gear and spoilers? Soren Christensen Question	6	2	Aug 7, 2020

FMC fail, A/T question. Matthieu Lambinet Discussion	0	0	Aug 7, 2020

1 2

Technical Discussions

Welcome to Technical Discussions! Community Rules

New NNC/L ENG FIRE

Landing Gear Transfer Unit

What will happen if I put BAT SWITCH off in flight ?

When using EAI or WAI, operationally speaking, why adding 10kt only for flaps 15 landings and not for flaps 30/40 landings?

Loss of both engine driven gen on takeoff roll ...what should I do ? Reject or continue?

Hydraulics: Why isn’t there any « Overheat » alarm for EDP (only for EMDP)?

Cabin temp hot NNC or PACK NNC why R recirculation fan AUTO and L recirculation fan OFF

Why DO NOT ARM THE AUTOBRAKE in Ditching Checklist?

FLT ALT 00000

For the B738: In case of BATTERY DISCHARGE light illuminates, then loss of battery power, will the HOT BAT BUS be powered? (Fire extingui)

Cabine temp hot NNC - why 290 kts at level off?

PTU automatic operation

Why do we need to close Pack switch (affected side), Isolation Valve and APU Bleed Air switch in case of Engine Fire?

DEU failure, why above fl220 no effect on ap and fd, but below fl 220 pitch command is removed and vnav vs lvl chg n/a on failed side?

Spar fuel valve

1. What is the difference between the reverse thrust detents and are there any visual indications (say N1) to differentiate between them?

ERR7 no Fuel QTY

Hello pilot colleagues (B737CL/NG) In case of double engine failure (with the APU u/s), how can I operate flaps, landing gear and spoilers?

FMC fail, A/T question.