PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA             Item No.      6b 
Date of Meeting   February 28, 2012 

DATE:    February 17, 2012 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    John Christianson, General Manager, Aviation Maintenance 
Wayne Grotheer, Director, Aviation Project Management Group 
SUBJECT:  Port Owned Aircraft Loading Bridge Renewal and Replacement (C800267) 
Amount of This Request: $2,405,000    Source of Funds: Airport Development Fund 
Est. State and Local Taxes: $128,000    Est. Construction Jobs Generated: 8 
Total Project Cost: $2,405,000 

ACTION REQUESTED:
Request Port Commission authorization for the Chief Executive Officer to: (1) proceed with
design and installation of replacement and/or refurbishment of Airport-owned passenger loading
bridges (PLBs) that are at or beyond their useful life; (2) authorize execution of contacts to
purchase new PLBs and replacement PLB components for refurbishment; and (3) approve the
use of Port crews to perform work related to (a) modification/refurbishment of an existing PLB
and (b) installation of new PLBs at Seattle-Tacoma International Airport (Airport). The amount
of this request is $2,405,000. It is anticipated that one PLB will be replaced and up to three
PLBs will be refurbished under this scope of work.
SYNOPSIS:
The Airport finds it increasingly necessary to expand gate availability in order to meet growing
operational needs and when responding to contingency situations. 
PLBs are considered to have a service life of 25 years before major refurbishment or replacement
is required. The bridges included within this scope of work will all be at the end of or beyond
their service life by the time replacement or refurbishment takes place. 
The Project Management Group has worked in conjunction with Operations, Planning and
Maintenance to generate a prioritized list of Airport-owned PLBs that have been deemed good
candidates for replacement or refurbishment. This project was included in the 2012-2016 capital
plan and plan of finance as a business plan prospective project.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 17, 2012 
Page 2 of 6 
The PLB installation will provide the potential for participation by small business contractors
and suppliers via Port Construction Services under existing small works contracting and
purchasing opportunities. 
PROJECT JUSTIFICATION: 
This project will allow the Airport to replace or refurbish its PLBs that have reached the end of
their service life or that are at high risk for failure. Key justifications include: 
The Airport owns several non-standard Mitsubishi PLBs that are no longer supported by the
manufacturer and that should be replaced due to the scarcity of replacement parts and the
increasing risk of failure.
Operational failure of a PLB causes a serious ripple effect, negatively affecting operations
and airline service while significantly inconveniencing the traveling public.
Given the current economic climate, the refurbishment of Airport-owned PLBs becomes a
more attractive option than outright replacement since approximately two PLBs can be
refurbished for the price of one PLB replacement while significantly extending useful life.
This allows the Airport to more cost effectively provide upgraded equipment at more gates.
New or refurbished PLBs typically experience longer lifespans resulting in deferred future
capital expenditures. Refurbished PLBs have an estimated service life extension of
approximately 20 years. 
Refurbishing PLBs as opposed to replacing them keeps approximately 20 tons of demolition
debris per refurbished PLB out of the waste stream.
PROJECT STATEMENT AND OBJECTIVES: 
Project Statement: 
The PLBs currently being considered for action under this CIP are N3, S3, S4, S12; however, 
this list is necessarily subject to change in order to reflect ongoing contingency and unpredictable
operational requirements. 
Gate  Mfg. Year (Age)      Manufacturer           Recommendation 
S12   1983 (29 years old)    JBT AeroTech/Jetway     Refurbish 
S3    1974 (38 years old)    JBT AeroTech/Jetway     Refurbish 
S4    1988 (24 years old)    JBT AeroTech/Jetway     Refurbish 
N3   1985 (27 years old)    Mitsubishi           Replace 
The PLBs at the South Satellite have been assigned a higher priority for action due to increased
international traffic volume and limited gate space with access to the Federal Inspection Service 
International Arrivals facility level.
The PLB at Gate N3 is scheduled for replacement because of its age and the fact that it is a nonstandard
Mitsubishi model that is no longer supported by the manufacturer.
The other three PLBs (S3, S4, and S12) are JBT AeroTech/Jetway models that are considered to
be good candidates for refurbishment rather than replacement.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 17, 2012 
Page 3 of 6 
Project Objectives: 
The refurbishment and/or replacement of Port-owned PLBs that have reached the end of their
service life will result in decreased maintenance costs and PLB downtime and will greatly reduce
the likelihood of total PLB failure. If a PLB fails, the affected gate positions could not be used
to their fullest potential until it is repaired or replaced, both at considerable cost to the Port and
significant impact to airline operations. This would result in lost revenue, reduced ability to
accommodate flights, and negative impact to major tenants by forcing airlines to ground-load
passengers.
PROJECT SCOPE OF WORK AND SCHEDULE: 
Scope of Work: 
The PLBs currently identified for this CIP are N3, S3, S4, and S12. The work will t ake place at
both the North and South Satellites. The anticipated scope of work includes: 
Demolition and replacement of PLBs at affected gates that have been determined to be ready
for replacement by Maintenance and Operations. 
Refurbishment work by Port Crews will renew/replace primary PLB systems, equipment,
components and finishes in order to extend the useful life of existing PLBs not judged ready
for replacement by the Port. 
Purchase and installation of a new PLB and associated equipment and components, to
include modification or replacement of existing PLB foundations at affected gates along with
necessary architectural, electrical, data and mechanical infrastructure upgrades to meet new
PLB standards and current code requirements. The Port executed a sole source waiver on
July 9, 2010, authorizing purchase of passenger loading bridges and support parts and
equipment. 
PCS will perform work associated with preparing the foundations for the PLB replacement
and construction management services.
A small works contractor will be responsible for installing and commissioning a new PLB
provided as owner-furnished equipment.
A PLB design services IDIQ professional services contract was competitively procured and 
is in place (P-00317063) and the intent is to use this contract to handle the design
requirements for the PLBs that will be replaced or refurbished in this scope of work.
Schedule: 
Start               Finish 
PLB Design                         April 2012          March 2013 
PLB Refurbishment/Replacement            July 2012          December 2014 
FINANCIAL IMPLICATIONS: 
Budget/Authorization Summary 
Original Budget                                               $6,000,000 
Budget Reduction                                           $3,595,000 
Revised Budget                                             $2,405,000

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 17, 2012 
Page 4 of 6 
Previous Authorizations                                                $0 
Current request for authorization                                       $2,405,000 
Total Authorizations, including this request                               $2,405,000 
Remaining budget to be authorized                                       $0 
Total Estimated Project Cost                                       $2,405,000 
Project Cost Breakdown 
Construction Costs                                               $938,000 
Port Furnished Equipment (1 new PLB)                                $405,000 
Sales Tax                                                     $128,000 
Outside Professional Services                                         $175,000 
Aviation PMG and Other Soft Costs                                  $708,000 
Environmental/HAZMAT/RMM                              $51,000 
Total                                                         $2,405,000 
Budget Status and Source of Funds 
This project was included in the 2012-16 capital budget and plan of finance as a business plan
prospective project within CIP #C800267 with a budget of $6.0 million. Due to the PLB
replacements planned in connection with the airline realignment in the terminal, the scope of this
CIP was reduced. The funding source will be the Airport Development Fund. 
Financial Analysis Summary:
CIP Category           Renewal/Enhancement 
Project Type            Renewal & Replacement 
Risk adjusted Discount rate   N/A 
Key risk factors           N/A 
Project cost for analysis      $2,405,000 
Business Unit (BU)        Terminal  Airline Equipment 
Effect on business         NOI after depreciation will increase 
performance 
IRR/NPV            N/A 
CPE Impact           CPE will increase by $.01 in 2014, but no change to business
plan forecast as this project was included. 
ECONOMIC IMPACTS AND BUSINESS PLAN OBJECTIVES: 
Replacement or refurbishment of aging PLBs considered to be at high risk for failure will
provide reliable, high quality facilities for passengers and airlines. This translates into reduced
maintenance costs, increased operational reliability and deferred future capital expenditures. 
Providing improved PLBs supports the Port's strategy to ensure Airport vitality by ensuring that
airlines are provided with reliable and efficient PLB services.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 17, 2012 
Page 5 of 6 
STRATEGIC OBJECTIVES: 
By replacing or refurbishing PLBs that are at the end of their useful operational life, this CIP
advances the Airport's objectives of: 
operating a world-class Airport by managing our assets to minimize the long-term cost of
ownership and 
leading the U.S. airport industry in environmental innovation and minimizing the Airport's
environmental impacts.
ENVIRONMENTAL SUSTAINABILITY AND COMMUNITY BENEFITS: 
This project will install new and refurbish existing PLBs to replace aging, less energy efficient
equipment at existing gate locations.
Refurbishing PLBs instead of replacing them prevents up to 20 tons of demolition debris per
bridge from entering the waste stream.
New and refurbished PLBs employ the use of advanced electronics, materials and finishes that
provide enhanced energy efficiency and improved air quality through: 
Installation of EnergyStar compliant equipment/components where applicable. 
Use of up to 30% pre-consumer recycled content in PLB flooring. 
Use of repurposed rubber from spent aircraft tires for PLB control cab bogies (under-cab
assemblies) 
Use of No/Low VOC (volatile organic compound) paints, adhesives and finishes wherever
possible.
Use of LED light fixture lamps in place of fluorescent lamps. 
Provision for increased passive ventilation in newly manufactured PLBs over older models.
TRIPLE BOTTOM LINE: 
This project demonstrates environmental sustainability by replacing outdated, inefficient and
unreliable PLBs and refurbishing viable existing PLBs. This will allow the Port to provide our
tenants and the general public with the updated, dependable and more efficient equipment that
they need to support and grow their business. The resulting improvement to the Port's PLB
inventory will promote net operating income through ongoing gate leases to airlines with a
corresponding decrease in maintenance and capital expenditures. 
ALTERNATIVES CONSIDERED AND THEIR IMPLICATIONS: 
Alternative #1: Replace or Refurbish PLBs at High Risk of Failure 
Replacement of aging PLBs not deemed suitable for refurbishment will provide high quality
facilities for Airport passengers, reduced maintenance costs and increased operational reliability.
Rehabilitation of aging PLBs deemed suitable for refurbishment is a cost effective alternative to
outright replacement and will provide approximately 20 years of additional service life. This is
the preferred alternative.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
February 17, 2012 
Page 6 of 6 
Alternative #2: Continue to Operate Aging, Port-Owned PLBs As-Is 
Delaying the replacement and/or refurbishment of Port-owned PLBs that have reached the end of
their service life will result in ever increasing maintenance costs, PLB downtime and the risk of
total PLB failure. When a PLB fails, the affected gate positions cannot be used to their fullest
potential until repaired or replaced, both at considerable cost to the Port and significant impact to
airline operations. This would result in lost revenue, reduced ability to accommodate flights, and
negative impact to major tenants by forcing airlines to ground-load passengers.
OTHER DOCUMENTS ASSOCIATED WITH THIS REQUEST: 
Graphic  Passenger Loading Bridge Improvements  IDIQ, 1 pp. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS: 
None.