An MD82 captain describes the circumstances surrounding a weather diversion to MMMX and the problems...

Narrative:

Aircraft was scheduled to depart for MMMY with an alternate of ZZZ. Dispatch was contacted before departure to revise alternate to mmqt because of deteriorating weather in ZZZ. A takeoff alternate was also added. Paperwork for mmqt was received enroute. Approaching lrd we were contacted by houston center and advised that MMMY had gone below minimums. After discussion with both dispatch and houston center on viable alternatives; we decided to proceed to of our alternate of mmqt. Enroute to mmqt we were contacted by dispatch and told that mmqt was an unsuitable alternate. Dispatch recommended MMMX as our new alternate. We re-calculated our fuel; found we had enough fuel to safely make MMMX; and refiled to MMMX with monterrey center. Landed uneventfully at MMMX.myself and the first officer were made aware that our using MMMX as alternate did not sit well with the mexican aviation authorities. The next morning it seemed that the MMMX station manager had smoothed over most of the issues with the mexican authorities. I was asked to write a short explanation as to why we were there. Both the first officer and I handed over copies of our badges; FAA licenses; and medicals.

Original NASA ASRS Text

Title: An MD82 Captain describes the circumstances surrounding a weather diversion to MMMX and the problems this causes with the Mexican aviation authorities.

Narrative: Aircraft was scheduled to depart for MMMY with an alternate of ZZZ. Dispatch was contacted before departure to revise alternate to MMQT because of deteriorating weather in ZZZ. A takeoff alternate was also added. Paperwork for MMQT was received enroute. Approaching LRD we were contacted by Houston Center and advised that MMMY had gone below minimums. After discussion with both Dispatch and Houston Center on viable alternatives; we decided to proceed to of our alternate of MMQT. Enroute to MMQT we were contacted by Dispatch and told that MMQT was an unsuitable alternate. Dispatch recommended MMMX as our new alternate. We re-calculated our fuel; found we had enough fuel to safely make MMMX; and refiled to MMMX with Monterrey Center. Landed uneventfully at MMMX.Myself and the FO were made aware that our using MMMX as alternate did not sit well with the Mexican aviation authorities. The next morning it seemed that the MMMX station manager had smoothed over most of the issues with the Mexican authorities. I was asked to write a short explanation as to why we were there. Both the FO and I handed over copies of our badges; FAA licenses; and medicals.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1244914
Time
Date	201503
Local Time Of Day	1801-2400
Place
Locale Reference	ZHU.ARTCC
State Reference	TX
Aircraft 1
Make Model Name	MD-82
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

An MD82 captain describes the circumstances surrounding a weather diversion to MMMX and the problems this causes with the mexican aviation authorities.