| Action Date | Action Description | 
|---|---|
| HPHC Historical Preservation No Effect | |
| Nov 18, 2015 | Maintenance Certification Request | 
| Nov 18, 2015 | Administrative Review for Completeness | 
| Nov 20, 2015 | Team Review for Completeness | 
| Nov 20, 2015 | Application Accepted | 
| Sep 28, 2017 | Engineering Report | 
| Sep 28, 2017 | Maintenance Certification OTC |