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-   -   A320 attitude display on ground (https://www.pprune.org/tech-log/624480-a320-attitude-display-ground.html)

Check Airman 10th Aug 2019 20:59
A320 attitude display on ground
 
Hi all,

I noticed today that on the CA side, the attitude indicator showed pitch down indications on the ground, instead of the normal blank, brown hemisphere.

Any idea what caused that, or how to reset it?

PA38-Pilot 11th Aug 2019 02:29
Turn the PFD off and then back on

AB335 11th Aug 2019 11:06
Complete realignment of all IRS might help?

Uplinker 11th Aug 2019 13:34
To help troubleshoot this (on the ground while not in flight), you can switch the ATT HDG ECAM switch to Capt on 3.

If the odd display remains the fault is downstream of the DMCs. If the fault clears, the problem is at, or upstream of, DMC 1.

Check Airman 11th Aug 2019 13:46
Originally Posted by AB335 (Post 10542406)
Complete realignment of all IRS might help?
Tried to do a full realign of the affected unit. No joy.

Check Airman 11th Aug 2019 13:48
Originally Posted by Uplinker (Post 10542470)
To troubleshoot this (on the ground while not in flight), you can switch the ATT HDG ECAM switch to Capt on 3.

If the odd display remains the fault is downstream of the DMCs. If the fault clears, the problem is at, or upstream of, DMC 1.
On the day in question ADIRU 3 was deferred.

sonicbum 11th Aug 2019 13:57
Originally Posted by Check Airman (Post 10542071)
Hi all,

I noticed today that on the CA side, the attitude indicator showed pitch down indications on the ground, instead of the normal blank, brown hemisphere.

Any idea what caused that, or how to reset it?
Call maintenance and have a coffee in the meantime. Works very well to keep you away from troubles.

PA38-Pilot 11th Aug 2019 19:39
Originally Posted by PA38-Pilot (Post 10542206)
Turn the PFD off and then back on
BTW, I wasn't kidding with this. It actually works. I've seen that a few times.

Check Airman 11th Aug 2019 20:05
Originally Posted by PA38-Pilot (Post 10542691)
BTW, I wasn't kidding with this. It actually works. I've seen that a few times.
Ah. Will have to try next time, as even the mtx folks were perplexed.

FlightDetent 11th Aug 2019 22:05
Howdy C/A, how long are you in - around the 5 year mark?

Check Airman 11th Aug 2019 23:09
Originally Posted by FlightDetent (Post 10542783)
Howdy C/A, how long are you in - around the 5 year mark?
Pardon me?

FlightDetent 12th Aug 2019 10:13
I mean on the bus. It was more or less 5-7 years for us when we started seeing things the manuals could not readily explain. As if the aircraft started behaving non-deterministically. ��

Until that point we thought to belong inside the "it's doing it again" group already, but for some metaphysical reason become "ain't seen nothing yet" people for a while.

Just wonder if your vibes perhaps are similar, it's half of a joke.

Airbus38 12th Aug 2019 18:53
Press PFD/ND XFER twice, will clear every time.

Only ever seems to crop up on EIS 2 fitted aircraft and only after daily maintenance checks. No idea why though, should only crop up after becoming airborne?

Check Airman 13th Aug 2019 00:46
Originally Posted by FlightDetent (Post 10543078)
I mean on the bus. It was more or less 5-7 years for us when we started seeing things the manuals could not readily explain. As if the aircraft started behaving non-deterministically. 🤦

Until that point we thought to belong inside the "it's doing it again" group already, but for some metaphysical reason turned become "ain't seen nothing yet" people for a while.

Just wonder if your vibes perhaps are similar, it's half of a joke.
Ah. Lol. Got it now. I suppose this will be my fourth year. I'm definitely not in the "doing it again" league yet. (Well except for the STARs into LAX where it always says TOO STEEP PATH.

Check Airman 13th Aug 2019 00:50
Originally Posted by Airbus38 (Post 10543368)
Press PFD/ND XFER twice, will clear every time.

Only ever seems to crop up on EIS 2 fitted aircraft and only after daily maintenance checks. No idea why though, should only crop up after becoming airborne?
First time I saw it was on EIS1. Most recently, EIS2. MSN 6xxx, so a pretty new plane.

Will keep that in tip in the back pocket though. Thanks


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