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December 07, 2021
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DIO 1/22/17
Jan 24, 2017
January 22, 2017

Declared Irregular Operations – DIO

All Flight Attendants: 

Effective 1900 (MST) January 22, 2017, management anticipates the DIO lasting until Tuesday January 24, 2017 at 1900 (MST). The company will send updates in Comply 365 if this changes.
At 1900 MST this evening the company declared irregular operations in preparation for inclement weather and ATC holds on the east coast, LAS and LAX. It will impact at least 33% of the operation starting tonight and continue into Tuesday.

DIO can be found in Article 5 of our AFA Contract on page 47

Please reference Article 5 BB. DECLARED IRREGULAR OPS:

1. A Declared Irregular Operations (DIO) is defined as any short-term event such as weather or airport closure that significantly disrupts or that is predicted to significantly disrupt at least 25% of the total daily system flight segments. A DIO may be declared by the VP of Flight Operations or the Director of System Operations Control (or a position they report to) based on a known or predicted event.

2. This provision is intended to provide the Company greater flexibility to operate during, and reestablish normal scheduled operations after, a DIO. Notice of the beginning and the end of a DIO will be included as a Crew Trac message to all Flight Attendants. Any DIO will also be posted on

3. During a DIO, Crew Scheduling will be allowed reasonable relief from Reschedule and Reroute limitations as necessary to conduct operations and to reestablish normal scheduled operations.

4. During a DIO, information for Flight Attendants will be posted at\departments\inflight (if not on the myfrontier home page). Flight cancellations will be posted at, but crews must receive notification through Crew Scheduling.

5. During a DIO and recovery, a Flight Attendant who is sent to a Crew Hotel and remains an extended period of 8 hours and 15 minutes or more, beyond block-in will be considered to be released to rest until reassignment. 24 hours at rest in an out- station or in base will meet FAR requirements for the 24 hours in 7 days.
Example: A crew scheduled for a DFW turn is sent to the hotel in DFW at 2000 because the return segment is cancelled due to DIA closure. The crew begins normal lay-over rest (though they are not released from reassignment). They are reassigned at 1800 the second day to depart at 0600 the third day. This crew has had legal rest as well as a 24 in 7 break for purposes of legality.

In Unity,

Your AFA MEC Officers
Association of Flight Attendants-CWA Frontier Airlines
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