Questions tagged [sop]
Questions about Standard Operating Procedures, usually developed by each company to standardize their operations.
17
questions
6
votes
0answers
156 views
Why do we have to perform a full ADIRS alignment between latitudes of 2 degrees North and South on the A320 family?
In the latest FCOM revision under the preliminary cockpit preperation normal procedures chapter ADIRS alignment has been added. However most of the conditions remain the same except for a new line ...
1
vote
2answers
104 views
Why do NY ARTCC Standard Operation Procedures have different altitude limits than the NY Class B airspace?
The NY Class B airspace is defined, officially, as seen in this document, which can be found in the VFR Class B Graphics in the FAA website. In this graphic (and in the corresponding shapefile, Class ...
3
votes
2answers
946 views
Why do we have to do an alternate brake check during preliminary cockpit preparation?
As part of the preliminary cockpit preparation in my company’s older A320s we have to perform an alternate brake system check but not in the newer ones as per FCOM Normal procedures as below. I found ...
5
votes
2answers
884 views
How does the flap configuration affect the tailstrike limit on the A320 aircraft family?
The configuration that provides the maximum FLEX temperature varies with the runway length.
On short runways, CONF 3 usually provides the highest FLEX temperature, and the tail clearance at lift off ...
4
votes
2answers
2k views
Why can the A320 VAPP be decreased down to VLS?
I read in the Airbus A320 FCTM (p349), normal procedures descent section:
The flight crew can insert a lower VAPP in the MCDU PERF APPR, down to
VLS, if landing is performed without A/THR, ...
8
votes
3answers
2k views
On the A320 why do we follow this particular sequence of taking flaps and gear?
First we take flaps 1 then 2 after that we lower the gear followed by flaps 3 and full. My thinking is that this will avoid any GPWS warning is that it or there is something else also to it.?
8
votes
1answer
344 views
Is In-Seat Rest used regularly where it is legal, and is it restricted by airline SOPs?
This answer says that a pilot who is not flying (PNF) can make use of a procedure called In-Seat Rest to take a nap during flight.
A comment on the same answer says that this is illegal in the US, ...
2
votes
1answer
1k views
How does switching off pumps and putting on MAN switch resolve low pressure?
FUEL
If the center tank is less than 200 kg (440 lb) for the flight: Apply the following procedure, if your airline is affected by FUEL CTR TK PUMPS LO PR cautions on ground or in flight when the ...
9
votes
1answer
1k views
Why does the flight controls check come before arming the autobrake on the A320?
As per SOP on the A320 we first perform the flight controls check and then arm the autobrake to max. What is the reason behind this?
13
votes
4answers
1k views
How should the crew callout 1,000 ft. prior to assigned altitude?
When climbing or descending in a multi-crew cockpit, most SOP's require a verbal callout at 1,000 ft. prior to the assigned altitude.
I typically hear different callouts by different people:
"One ...
7
votes
2answers
2k views
What are the SOPs following an overweight landing?
Modern commercial aircraft are certified to be able to land at any weight providing that the runway is long enough. The "overweight landing" QRH procedures for the 734 and A320 are correspondingly ...
6
votes
1answer
691 views
Why are the stabilised approach criteria different for an instrument approach and a visual approach?
My question mainly pertains to the simple altitude difference. Why is the stabilised call given at 1000ft for an instrument approach and 500ft for a visual approach?
4
votes
1answer
1k views
Could someone please explain what is thermal oxidation of the carbon brakes?
In my company SOP after landing we don’t switch on the brake fans immediately after the HOT annunciation comes on on the BRAKE FANS push button. Instead we are told to wait for a period of 5 mins ...
9
votes
1answer
990 views
Why would smoke enter the cabin if the batteries are switched off before the APU flap closes?
In the A320 FCOM SOPs securing if the APU flap doesn't fully close smoke may occur in the cabin in the next flight
In the NORMAL PROCEDURES SECURING THE AIRCRAFT. It states that before switching off ...
2
votes
1answer
795 views
What will happen if we start the A320 engines but we don't wait for the amber crosses on the E/WD to disappear?
My logic is that we should wait for the sensors to register the present indications so we have a proper idea of what state the engine is in particularly the EGT if we have to consider a manual start.
6
votes
1answer
945 views
What are the reasons behind switching FDs off for a VOR approach?
Why do SOPs ask to switch off flight directors and enter Vapp into the FMGC while carrying out a VOR approach on Airbus aircraft? My question pertains to when we disengage the AP. Why do we carry out ...
10
votes
2answers
3k views
Do airline SOP normally recommend an in-flight engine restart in the case of an unexplained shutdown?
You're flying along at cruise in say a 737 or similar twin-engined yet. Suddenly, one of your engines shut down for no apparent reason. (or no abnormal indications such as low oil or similar)
Do you:
...
