Flat tyre?
Thread Starter
Joined: Mar 2006
Posts: 1,974
Likes: 0
From: Choroni, sometimes
@stator vane
Same happened to us. So my concerns are
- no tyre pressure indication in cockpit
- no wheel-well fire warning/fighting
- no daily manuell pressure check.......
and you start taxiing 4 miles with a heavy-weight aircraft for takeoff
- no tyre pressure indication in cockpit
- no wheel-well fire warning/fighting
- no daily manuell pressure check.......
and you start taxiing 4 miles with a heavy-weight aircraft for takeoff
Thread Starter
Joined: Mar 2006
Posts: 1,974
Likes: 0
From: Choroni, sometimes
@Clarence Oveur
Yes, I know. Did you ever check the MEL about break temp ind sys.......?
To make it clear for everybody. Airbuses don't have a wheel-well fire warning, some even don't have a tyre-pressure-indication in the cockpit either.
The only thing left to detect a possible fire in the wheel-well is the brake-temp-indication, which may be inop if brake cooling-schedule is observed....
To make it clear for everybody. Airbuses don't have a wheel-well fire warning, some even don't have a tyre-pressure-indication in the cockpit either.
The only thing left to detect a possible fire in the wheel-well is the brake-temp-indication, which may be inop if brake cooling-schedule is observed....
Last edited by hetfield; 6th June 2007 at 19:32.
Joined: Jul 1999
Posts: 352
Likes: 0
From: Europe
Yes, I do know what the MEL says about brake temp ind. I also know a bit about the analysis required before items can be included in the MMEL.
No doubt the first chapter of your company MEL will state that the commander can refuse an aircraft with inop equipment, even if the MEL says it's a GO item.
If you feel so strongly that it is unsafe not to have tyre pressure indication in cockpit / wheel-well fire warning / brake temp ind. there is only one thing to do.
No doubt the first chapter of your company MEL will state that the commander can refuse an aircraft with inop equipment, even if the MEL says it's a GO item.
If you feel so strongly that it is unsafe not to have tyre pressure indication in cockpit / wheel-well fire warning / brake temp ind. there is only one thing to do.
Thread Starter
Joined: Mar 2006
Posts: 1,974
Likes: 0
From: Choroni, sometimes
If you feel so strongly that it is unsafe not to have tyre pressure indication in cockpit / wheel-well fire warning / brake temp ind. there is only one thing to do.
Yes, I fully agree.
Yes, I fully agree.
Joined: Dec 2005
Posts: 113
Likes: 0
From: Netherlands
Tyre pressure indicators
Paul Wilson,
You quote about four quid for low pressure indicators for car tyres. By the time it has been approved, certified and anything else that can be thought of to bump the price, I think you would have to be thinking of at least ten times the cost for a car. (Even though it is identical).
World of Tweed,
I think you are referring to the inflation valves incorporating a pressure gauge, If so these are optional to the standard valve stem installed on wheels. I have worked on several operators B757s and never had them fitted to this aircraft. I have, however, seen them on other types, and not necessarily on every wheel. They are useful, as it saves carrying a tyre pressure gauge on a walk round and, are calibrated to within 10% accuracy,when new.
You quote about four quid for low pressure indicators for car tyres. By the time it has been approved, certified and anything else that can be thought of to bump the price, I think you would have to be thinking of at least ten times the cost for a car. (Even though it is identical).
World of Tweed,
I think you are referring to the inflation valves incorporating a pressure gauge, If so these are optional to the standard valve stem installed on wheels. I have worked on several operators B757s and never had them fitted to this aircraft. I have, however, seen them on other types, and not necessarily on every wheel. They are useful, as it saves carrying a tyre pressure gauge on a walk round and, are calibrated to within 10% accuracy,when new.
Joined: Nov 2000
Posts: 587
Likes: 0
From: Planet Claire
smudge
Not so sure about low pressure doing that.........depends how low, 'low' is I guess.
No pressure on the other hand. Unless you spot the deflated one on the walk round, and believe me you could easily miss it- even if you kick it, NO pressure will cause no torque to be passed into the brake pack. The brake normally converts the torque into heat, so no torque- no heat.
If you land and one brake temp stays very low- you've got a flat.
Not so sure about low pressure doing that.........depends how low, 'low' is I guess.
No pressure on the other hand. Unless you spot the deflated one on the walk round, and believe me you could easily miss it- even if you kick it, NO pressure will cause no torque to be passed into the brake pack. The brake normally converts the torque into heat, so no torque- no heat.
If you land and one brake temp stays very low- you've got a flat.
