Hi captains! 

 

Again I have an issue with the 77L brakes: Course of events: 

 

0. I cannot find a braking bug in

1. I flew ACA33 CYYZ-CYVR-YSSY and had *no* problem to brake before the take-offs and after the landings. 

2. Sitting at YSSY the random fault 'REPAIR ALL BRAKES' kicked in, 

          and now it is unclear what we shall do, either or both of the following? 

2.1 Is it sufficient to clear this fault in PMDG SETUP/AIRCRAFT/FAILURES/WHEEL AND BRAKES? I cleared it here. Done. 

2.2 Shall we also use the option in FS ACTIONS/GROUND MAINTENANCE/REPLACE BRAKES? I did so additionally. The line greyed out. Done. 

3. After pushback for ACA34 YSSY-CYVR and taxiing to RWY34L I sensed: No braking action at all! Oh no, not again this one! 

4. I set the chocks on the taxiway (is it a prerequisite to work on the plane?), no problem to move the aircraft forward with only little thrust! 

5. Checking the faults again: No fault indicated! 

6. Repeating the ground maintenance: No effect! 

 

To me this is a bug, 

since there is no indication of a malfunction, neither on the screens, nor in the PMDG menus of the FMS. 

The entire braking function does not work, even the chocks. 

 

Also it has *nothing* to do with the also discussed wrong sequence of cooling/fixing brakes/wheels: 

I did *not* perform an RTO, *nor* there was a brake overheating. 

(See http://forum.avsim.net/topic/422870-repairing-wheels-and-brakes-issue/ )

 

Please advise, and thanx in advance. 

(A solution would be nice before I land in CYVR...   8^)

 

Hello Andreas

 

I am not an expert in resolving issues, but this is interesting. Have u checked the button or key assignment for brakes in fs or if u r using fsuipc for assignment? And srry in advance if this is a silly question or if i misunderstood

Thank you Mohamed. However, I don't use fsuipc for key assignments, and: The brakes did work in the beginning of my journey. Something's screwed up my configuration. Nevertheless we need always to check whether it is a *simulated* fault, but here there is no fault indicated at all. 

Sunday morning, let's try some testing. 

 

I load PMDG's panel state 777 LONG --- I start the engines, the chocks are still in, we start rolling! The brakes don't work. 

I load PMDG's panel state 777 SHORT --- I start the engines, the chocks are still in, we start rolling! The brakes don't work. 

I load PMDG's panel state 777 CLDDRK--- I start the engines, the chocks are still in, we start rolling! The brakes don't work. 

 

My brake problem has *nothing* to do with the panel states. 

Not too amazing, as they are called 'PANEL states'. 

 

Nevertheless, how else shall I reset the aircraft? 

How else shall I get the brakes work again? 

I couldn't help myself but loading the C172 and checking that the brakes work, 

then replacing it on the ground by the 77L, and..................

..............................................................................the brakes work again. 

 

Huh, actually PMDG claim that this procedure is not necessary for their products. 

True normally, but in my case I haven't found another way, have you? 

Try calibrating your throttle axis and increase null zone. Yeah, throttle axis.

I couldn't help myself but loading the C172 and checking that the brakes work, 

then replacing it on the ground by the 77L, and..................

..............................................................................the brakes work again. 

 

Huh, actually PMDG claim that this procedure is not necessary for their products. 

True normally, but in my case I haven't found another way, have you?

 

You should submit a ticket to PMDG so it can be fixed.

 

Sounds ike a bug to me.

Andreas have you tried resetting the brakes and tyres in the maintenance part in the FMC.

 

Hopefully this might solve the issue but otherwise think you might need to submit a ticket

 

 

Try calibrating your throttle axis and increase null zone. Yeah, throttle axis.

 

Hi Cai, the throttle is linked to the brakes? How?

 

 

You should submit a ticket to PMDG so it can be fixed.

 

Hi Rob, yes, I thought so, too, since the starting point was the randon fault REPAIR ALL BRAKES. 

 

 

 

Andreas have you tried resetting the brakes and tyres in the maintenance part in the FMC.

 

Hi Stewart, yes, this was the first thing I did, but to no avail. 

Little update after opening my ticket: 

PMDG look into it and ask for a report of the same behaviour. 

 

Has anyone of you lost the brakes (even the chock without effect) after the random fault 'REPAIR ALL BRAKES' kicked in and you cleared away the fault by setting it to 'inactive'? 

 

Thank you.