Airbus A330 windshear alerts
Thread Starter
Join Date: Jan 2008
Location: DAAG
Age: 35
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Airbus A330 windshear alerts
Hi guys,
I’m actually kinda new on the Airbus (on the forum as well ) and I have some questions regarding the predictive and reactive windshear alerts :
On the FCOM it says that all alerts are inhibited from 100 kts til passing 50´, it says the same on the weather radar manual (Rockwell Collins WXR 2100). But in the memory items it is written : « If either the flight crew or the WX system detects WINDSHEAR, apply the following recovery technique: If before V1 Only reject the takeoff, if significant airspeed variations occur below indicated V1, and if the flight crew determines that the runway is sufficiently long to stop the aircraft. »
As you can see there is no mention of alert inhibition for the reactive windshear alert, the only speed reference is V1. Any ideas ?
I’m actually kinda new on the Airbus (on the forum as well ) and I have some questions regarding the predictive and reactive windshear alerts :
On the FCOM it says that all alerts are inhibited from 100 kts til passing 50´, it says the same on the weather radar manual (Rockwell Collins WXR 2100). But in the memory items it is written : « If either the flight crew or the WX system detects WINDSHEAR, apply the following recovery technique: If before V1 Only reject the takeoff, if significant airspeed variations occur below indicated V1, and if the flight crew determines that the runway is sufficiently long to stop the aircraft. »
As you can see there is no mention of alert inhibition for the reactive windshear alert, the only speed reference is V1. Any ideas ?
Join Date: Jun 2007
Location: Wanderlust
Posts: 3,407
Likes: 0
Received 0 Likes
on
0 Posts
What is your question exactly? There's no alert but there are other indications like trend arrow reversing, speed fluctuating. Before V1 can rejecct if sufficient margine remains.
Thread Starter
Join Date: Jan 2008
Location: DAAG
Age: 35
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Join Date: Aug 2013
Location: PA
Age: 59
Posts: 30
Likes: 0
Received 0 Likes
on
0 Posts
Reactive windshear alerts pilots when windshear is detected by the FACs. Reactive windshear system is active at takeoff, rotation and any time below 1300 feet RA when flaps are set to a minimum of CONF 1.
- Provides “WINDSHEAR, WINDSHEAR, WINDSHEAR” voice alert, the GPWS lights illuminate, and a red WINDSHEAR message displays on both PFDs.
- When the windshear warning is active, all other ground proximity warnings and alerts are inhibited until the windshear condition ceases.
Thread Starter
Join Date: Jan 2008
Location: DAAG
Age: 35
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Reactive windshear alerts pilots when windshear is detected by the FACs. Reactive windshear system is active at takeoff, rotation and any time below 1300 feet RA when flaps are set to a minimum of CONF 1.
- Provides “WINDSHEAR, WINDSHEAR, WINDSHEAR” voice alert, the GPWS lights illuminate, and a red WINDSHEAR message displays on both PFDs.
- When the windshear warning is active, all other ground proximity warnings and alerts are inhibited until the windshear condition ceases.
Edit : I have just found this on the FCOM :
The windshear detection function is provided in takeoff and approach phase under the following conditions:
At takeoff, 3 s after liftoff, up to 1 300 ft RA
- At landing from 1 300 ft RA to 50 ft RA
- With at least CONF 1 selected.
Last edited by avianouar; 22nd Jan 2019 at 17:43.
Join Date: Jun 2014
Location: Mordor
Posts: 337
Likes: 0
Received 0 Likes
on
0 Posts
Join Date: Aug 2013
Location: PA
Age: 59
Posts: 30
Likes: 0
Received 0 Likes
on
0 Posts
The document I have shows it is common to the A318, 319, 320, 321, 330 and 340....let me verify the official reference.
EDIT: This was one of those AB Safety First docs that no longer exists.
Try this: http://www.airbusdriver.net/Airbus330SG2014.pdf
EDIT: This was one of those AB Safety First docs that no longer exists.
Try this: http://www.airbusdriver.net/Airbus330SG2014.pdf
Last edited by underfire; 22nd Jan 2019 at 23:29.