COMMISSION 
AGENDA MEMORANDUM                        Item No.          6e 
ACTION ITEM                            Date of Meeting        July 9, 2019 
DATE:     July 1, 2019 
TO:        Steven P. Metruck, Executive Director 
FROM:    Ralph Graves, Senior Director Capital Development 
Janice Zahn, Assistant Engineering Director, Construction Services 
SUBJECT:  Baggage Optimization Project  Phase 1 (CIP #C800612): Change Order #62 (Short
Form) 
Amount of this request:       $0 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to execute Change Order No. 62
to  Contract  MC-0318277,  Baggage  Optimization  Project   Phase  1  at  Seattle-Tacoma
International Airport, to provide baggage handling system (BHS) controls software redundancy
(failsafe). This change order will add $361,770.22 to the contract from the project's
construction contingency; no project funding increase is required. 
SUMMARY 
This change order request requires no budget (zero dollars) because it can be accommodated
within previously authorized budget, and it requires no time (zero days) because it can be
accommodated within existing contract schedule parameters. Commission action is required
under the General Delegation of Authority because the value is over $300,000. 
Description of Change 
Change Order No. 62 will enable the Contractor to provide all research, development, and
engineering in order to provide and implement virtual machine redundancy (failsafe) for the
upper level BHS controls. This will protect the baggage system upper level controls from
vulnerabilities during unplanned outages and prevent the airport from losing all baggage
system functionality. It will also enable the baggage system controls to remain active for
routine system patches and virus protection. 
Providing virtual machine redundancy for the BHS controls will provide an increased level of
security and stability for the system and operations. This software includes automatic failover
fault tolerance, defined as immediate failover of applications or components to their redundant
counterpart when a failure occurs, manual failover functionality, and 24/7 availability while
enabling access for system updates and maintenance. This work has been coordinated and
emphasized as a requirement with the Port AV Electrical and Electronic Systems department. 
There are no attachments to this memo. 
Template revised September 22, 2016.