When the 787 engine cannot determine the engine source of vibration (N1, N2, N3), it shows BB (Broadband). Any idea why the BB is displayed during engine start?
Jump to postThe answer is within the SFRA document c. Any person operating an aircraft under VFR within the DC SFRA/FRZ who becomes aware of an inability to comply with the requirement to maintain radio contact with ATC shall immediately change the transponder code to 7600 and exit the DC SFRA/FRZ by the most ...
Jump to postI understand that DC Dulles airport is an area of special flight rules area (DC SFRA). This area apparently require: (1) The aircraft is equipped with an operable two-way radio capable of communicating with Air Traffic Control on appropriate radio frequencies. (2) Before operating an aircraft in the...
Jump to postAnyone know if In Trail Procedure (ITP) is implemented in NAT airspace? I can't find a reference for it.
Jump to postMy guess is that under normal circumstances the deadbolt is for use only when power is not available. With the power on, use the electronic lock... unless that malfunctions, in which case revert to using the deadbolt. Although the placard is somehow confusing especially when saying “ONLY”, but your...
Jump to postIt is not a company procedure. It is in the A/C FCOM. However it is not explained well. Deadbolt Lock The flight deck door also incorporates a keyed mechanical deadbolt system used to secure the flight deck when power is not available to the electronic locking system. There is a placard on the door ...
Jump to postAs far as I understand, in case of flight deck lock system is not working, we can use the dead bolt during flight. But any ideas why the deadbolt have a label “for ground use only”?
Jump to post[quote="unimproved"]The deflector doors also block airflow which you need in extreme temperatures.
Why CAC loves extreme weather (hot and cold)?
I have a couple of different questions regarding B787 systems. “Air conditioning”: The CAC deflector door Prevent debris from entering the CAC inlet during ground operations. Buy why the deflector doors may retract on the ground during high (>35C) and low (<2C) temperatures? “Passenger oxygen system...
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