Re the process for deferrees contractual recall rights.
The "flows" will continue as prescribed by their contractual rights.


To voluntarily return, send an email to {AA...} stating you would like to return. You will be placed in the next available class your seniority can hold with a minimum of 30 days prior notice of the class date. Advantage – pick your class date (dependent on seniority) up to Letter T expiration date.

Involuntary Return as a result of Letter T expiring.

AA will begin contacting Letter T pilots by telephone in reverse seniority order beginning around early April 2016. ...will also send a FedEx letter to the address the company has on file for you. Please immediately update your address with both the Company and APA if needed. The letter and phone call are notification that you are being involuntarily returned and you will need to return to AA in the assigned class. You will be given a minimum of 30 days notice of the class date. NOTE: If you fail to show up for your assigned class, your deferral period is over. You will be removed from and no longer have rights to the legacy AA pilot seniority list.

Decline return as a Letter T pilot

If you opt to not accept an assigned class date or fail to show for your assigned class, your deferral period is over. You will be removed from and no longer have rights to the legacy AA pilot seniority list.

Summary:

The first class following the expiration of Letter T is May 17, 2016. Currently, AA is expecting about 40 available positions to be filled by pilots currently on deferred status in reverse seniority order. There are two classes/month scheduled for the remainder of the year. Because no one knowns how many of the 894 pilots currently on deferral will return, we cannot estimate how long the process will last or when any particular pilot may receive notification from the Company. To assist all of the 894 pilots in this process, we ask that when you are contacted by American Airlines you provide them with your decision as soon as possible. We will update the Letter T list following each class, which will give you an idea of where you stand on being contacted.

Again, the above process affects your right to remain on the Legacy AA Pilot Seniority List. If you choose not to return after you are notified or if you fail to show for your assigned class, you will no longer be on deferral and will be removed from the legacy AA pilot system seniority list with no further right to return.