is currently open for public comment collection until March 2, at which point the
comments will be vetted and addressed as necessary.
UAS detection and countermeasures are becoming increasingly high visibility items.
Many of these discussions are sensitive in nature and will limit the amount of available
information for updates.
Upcoming activities:
• On-Airport test Memphis County Airport Authority.
• Unmanned Aircraft Safety Team Q1 meeting.
• SRM panel for On-Airport UAS operations.
• Bi-weekly UAS Leadership Team Meetings (ongoing).
• Weekly check-in with Program Manager (ongoing).
• Weekly ULT Workgroup Meeting (ongoing).
• NATCA Safety and Technology department telcon.
January 27-February 2, 2020 Update
AUTOMATED TERMINAL PROXIMITY ALERT (ATPA)
Mike Sanders (SCT) is the Article 114 Rep for ATPA.
The future enhancements to ATPA processing distance on ghost for Merging Display
Aid (MDA) and RNAV Z approaches are still in the works. ATPA processing formation
flights is coming but release to the field is still TBD. ATPA is voluntary on the part of
the individual controller at their display. Facilities are not permitted to make any portion
of ATPA mandatory.
If you have any question on training or adaptation, please contact me below.
Mike Sanders
SoCal TRACON
National ATPA Lead
laxapproach@icloud.com or atpa@natca.net
913-904-6937
COMMERCIAL SPACE
Paul Behan is the Article 114 Commercial Space Rep.
Acceptable Level of Risk (ALR) - The ALR implementation team meets every two
weeks. The Jan. 7 meeting discussion revolved around the Transitional Hazard Area
(THA) "crossing courses" rule with respect to wind corrections. The discrepancy is the
difference between a course and a heading, and that the 45-degree angular crossing
courses restriction already accounts for wind and that controllers do not need to account
for wind when issuing a radar vector (magnetic heading) in compliance with this rule.
However, winds aloft can often exceed 100kts which may result in controllers issuing a
