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-   -   A-320 rollout mode engaged during manual landing? (https://www.pprune.org/tech-log/627252-320-rollout-mode-engaged-during-manual-landing.html)

Homebrew1 16th Nov 2019 03:26
A-320 rollout mode engaged during manual landing?
 
Ok guys, this is a weird one and just seeing if anyone has had it or seen it?

A-320 CEO.

Landed today after disengaging the AP at 600’. 8kt crosswind on a 1900m runway.

After touchdown, while keeping straight noticed the rudder peddles hard, looked over at the F/O’s feet to see if he was riding the rudder with me but he wasn’t. A/C tracked well and I noticed ‘Rollout’ engaged in green on FMA’s. Through 70, as I stowed reversers, Rollout disappeared and rudders became soft (normal).

It has me stumped!

how could this be possible?

Homebrew1 17th Nov 2019 08:15
Originally Posted by Homebrew1 (Post 10619579)
Ok guys, this is a weird one and just seeing if anyone has had it or seen it?

A-320 CEO.

Landed today after disengaging the AP at 600’. 8kt crosswind on a 1900m runway.

After touchdown, while keeping straight noticed the rudder peddles hard, looked over at the F/O’s feet to see if he was riding the rudder with me but he wasn’t. A/C tracked well and I noticed ‘Rollout’ engaged in green on FMA’s. Through 70, as I stowed reversers, Rollout disappeared and rudders became soft (normal).

It has me stumped!

how could this be possible?
To clarify, it felt as though the auto-pilot was doing the work maintaining the runway centreline. Rudder was hard. Even though the AP was disconnected, rollout mode was engaged and holding the centreline. I think there has been some sort of weird malfunction though no ECAM or failure maintenance message.

iceman50 17th Nov 2019 09:28
Hopefully you wrote it up in the tech log.

Homebrew1 17th Nov 2019 23:42
Originally Posted by iceman50 (Post 10620307)
Hopefully you wrote it up in the tech log.
Absolutely, being investigated now. Just heard it has happened to another A320. Could be a software fault. Be careful out there!

Uplinker 23rd Nov 2019 08:29
Don’t know the answer to this one, but just out of interest, presumably there was an ILS tuned and did you deselect the F/Ds after disconnecting the A/P?

AviatorDave 23rd Nov 2019 16:27
Originally Posted by Homebrew1 (Post 10620763)
Absolutely, being investigated now. Just heard it has happened to another A320. Could be a software fault. Be careful out there!
What FMGS software version? MSN of the bird? (just the range is enough)

Homebrew1 25th Nov 2019 08:57
Originally Posted by Uplinker (Post 10624616)
Don’t know the answer to this one, but just out of interest, presumably there was an ILS tuned and did you deselect the F/Ds after disconnecting the A/P?
Yes ILS and approach loaded which auto tunes. Just disconnect the AP but left the FD's on which is just the way we do it. It's just so weird.

Homebrew1 25th Nov 2019 09:05
Originally Posted by AviatorDave (Post 10624881)
What FMGS software version? MSN of the bird? (just the range is enough)
Unfortunately I'm on annual leave for a few weeks but I'll look next time. I'm guessing it'll be the latest.

Gonewiththewallet 25th Nov 2019 17:02
Odd one, wondered has it happened before in that particular aircraft?

noptawat 30th Nov 2019 11:30
Originally Posted by Homebrew1 (Post 10619579)
Ok guys, this is a weird one and just seeing if anyone has had it or seen it?

A-320 CEO.

Landed today after disengaging the AP at 600’. 8kt crosswind on a 1900m runway.

After touchdown, while keeping straight noticed the rudder peddles hard, looked over at the F/O’s feet to see if he was riding the rudder with me but he wasn’t. A/C tracked well and I noticed ‘Rollout’ engaged in green on FMA’s. Through 70, as I stowed reversers, Rollout disappeared and rudders became soft (normal).

It has me stumped!

how could this be possible?

CHECK YOU FMAs !

Impossible


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