A little story from my last flight.
Had a interesting flight yesterday between LSZH (Zurich) and ESSA (Arlanda) during a VATSIM event, when a failure was triggered.
Its fun to (try) troubleshooting and find out what has happend without looking at the logfile or the failures menu.
(All picture is taken on ground just to illustrate)
I had about 400-500nm left on my flight to ESSA when I got this master caution.
I obvious have some issues with flight controls and the hydraulics. So my next step is to look at the overhead panel.
The first I notice is that both hydraulic pumps for SYSTEM B is indicating LOW PRESSURE. And I noticed the indicators for the flight controls, but my main concern was the hydraulics.
So I checked the pressure and quantity for SYSTEM B and confirming that I have a total loss of that hydraulic system.
So I was thinking, what to do, what to do. I had no problems flying the aircraft with the autopilot. And everything else worked fine.
My next step was to check if the QRH was covering this issue. And it did. Luckly for me.
First two steps is to set SYSTEM B FLIGHT CONTROL SWITCH to STBY RUD and set both hydraulic pumps for SYSTEM B to off.
So far so good. Still flying. And I made a decision to continue my flight to my destination as planed, it was after all a nice VATSIM event with alot of traffic.
I started planing my next steps.
What system have I lost ? How do I handle that ?
The QRH says this.
Systems that are handled by SYSTEM B is.
Outboard flight spoilers.
Autopilot B. - No issue for me, flying on Autopilot A.
Yaw damper.
Alternate nose wheel steering. No issue SYSTEM A is covering Nose wheel steering.
Normal brakes. SYSTEM A have to handle the brakes, and that means that Autobrake is INOP. Manual braking only.
SYSTEM B is also covering flaps, so alternate flaps have to be used.
The QRH says I should plan for a FLAP 15 landing. Not sure why, but could be performance issues with a go around or if I lose of a engine, since I cant retract the flaps with the alternate system.
Active runway for landing at ESSA this night was 01R (2500 meters). I did ask ATC for 01L (3300 meters) for landing, but it was denied (shame on you ATC)
So 01R it is. Winds calm.
VREF with FLAPS 15 was 144knots + 15. So my approach speed would be 159kts.
The QRH says that alternate flaps extension from flaps 0 to flaps 15 takes 2 minutes. So had to plan this and make sure I was able to set flaps 15 in time.
On the approach.
At < 230kts I enabled the alternate flaps.
Set the flap lever to desired flap position and extend flaps on maneuvering speed schedule using the alternate flaps position switch.
Landing checklist:
I was able to set the flaps in time and the landing went fine.
You can learn so much from the failures IXEG have made availble for us. And a 2 hour "boring" flight from A to B can be pretty busy when you need to start troubleshooting and flying the aircraft at the same time.
Pretty sure I was doing a lot of mistakes, but it was great fun
From the logfile.
The flight on vatsim: https://vataware.com/flight/5926fe4253523315c9000008