Attachment 1 - FPS-117 Tower Structural Analysis PWS.pdf

Performance Work Statement (PWS)

AN/FPS-117 Radar Tower Engineering Structural Analysis

Contract Number FA8217-26-TBD

Prepared By:

AFLCMC/ESGH

Atmospheric Early Warning System (AEWS)

AN/FPS-117 Program Office

Date:

04 August 2026

Version: 1.0

Table of Contents

Post Award Changes

Overview

Scope

Applicable Documents

Travel

Engineering Services/Requirements

Contractor Personnel

Onsite

Deliverables

TIM

Security

Service Summary

Attachments/References

Post Award Changes

Initiator Rev # Date Change Summary

1. Overview

1.1. Scope

This PWS outlines the primary requirements when performing structural analysis engineering services on the FPS-117 radar towers in Alaska along with the expected data deliverables.

1.2. Applicable Documents

1.2.1. Government Furnished Information (GFI)

The Contractor shall reference all relevant Technical Order’s (TO) and industry standards for structural analysis. Upon request, the Government will provide any available, applicable documentation which may include site-specific historical condition data, current site photographs, “as-is” drawings (original baseline/intended tower structure drawings – which may be unavailable/incomplete), previous inspection reports, and Reference document FPS-

117TECHDATA.pdf; “FPS/117 Transceive Group/Tower Interface Criteria”.

1.2.2. Technical Order’s

• 31P6-2FPS117(I)-21-1 (AN/FPS RADAR SYSTEM AN/FPS-117(V)1 7326377G1

AND AN/FPS-117(V)4 7326378G4)

• 31P3-2FPS6-232-7 AB-259 (TOWER AB-259/FPS-6)

• 31P6-2FPS3-375-2_AB199 (TOWER AB-199 USAF PART NUMBER AB-199)

• 31P1-2GPS-15 (Rigid Radome; CW-396A/GPS, CW-396B/GPS)

2. Travel

The Contractor is responsible for all travel arrangements for their personnel to and from the tower locations, travel costs, and adherence to the Joint Travel Regulations (JTRs) and RFO 31.205-46. All travel must receive prior written approval from the Contracting Officer or Contracting Officer’s

Representative (COR) prior to booking transportation or incurring costs and must be coordinated with the

Alaskan site POC. To obtain approval, the Contractor shall submit a written travel request (via email) to the COR no later than fourteen (14) days prior to the planned departure. This request must include the traveler names, dates, purpose of the trip, and an itemized estimate of all expected costs (including airfare, charter flights, lodging, and per diem).

Travel shall be reimbursed on a Time-and-Materials (T&M) basis for actual incurred costs, strictly limited to the regulations and per diem allowances outlined in the Joint Travel Regulations (JTR) and RFO

31.205-46 (Travel Costs). Total reimbursement shall not exceed the Not-To-Exceed (NTE) ceiling established in the Travel CLIN. No profit or fee shall be applied to travel costs. Due to the remote site locations, this contract specifically requires and authorizes the use of chartered aircraft, bush planes, and off-road transport when standard commercial routing is unavailable or impractical to meet mission requirements.

To be allowable for reimbursement, the Contractor must provide supporting documentation with their invoices, including the date and place of the expenses, the purpose of the trip, the name and title of the traveler, and itemized receipts for each individual expenditure of $75.00 or more, in accordance with RFO

31.205-46.

Site visitors shall be processed through a Site Arrival Request (SAR). SARs must be submitted to PRSC

14-30 days prior to site arrival and approved prior to booking transportation to the site and incurring travel costs (see reference section for link to SAR submittal).

If site access is required sooner than 14 days, then the Government Program Office program manager will work with the Contractor to provide justification to the PACAF Regional Support Center Office (PRSC).

3. Engineering Services/Requirements

3.1. Contractor Personnel

The engineering services/analysis shall be performed by an actively certified licensed Professional

Structural Engineer (PE) in the state of Alaska and be capable of meeting any/all physical demands of on-site inspections to include climbing stairs and ladders and accessing confined spaces without assistance.

3.2. On-Site

The contractor shall perform visual inspection, structural, and above-ground/grade foundational analysis of the following towers:

• Fort Yukon

• Indian Mountain

• Tatalina

• Sparrevohn

The structural analysis shall determine the towers' load-bearing capacity (based on above-ground structures), evaluate all exposed foundation concrete (identifying issues such as missing or damaged rebar), and identify any areas of concern requiring further investigation.

3.2.1. Inspection Areas

• Crawl Space (Ground level)

• First floor/Main level

• Second floor

• Catwalk (external to Radome)

• Third floor (inside the Radome, located around the radar unit)

3.2.2. Structural Analysis

The contractor shall perform a compete structural analysis of tower, foundation, and related components to identify and quantify spalling, buckling, cracking, corrosion, deterioration, structural shifting, and current condition of any previous repairs, and conduct a full load path analysis and Failure Modes and Effects Analysis (FMEA).

3.3. Deliverables

The Contractor shall deliver a comprehensive technical report, Contract Data Requirement List (CDRL)

A001; Technical Report-Study/Services, per tower, to the Government NLT thirty (30) days after work on site is performed, and IAW DI-MISC-80508B.

An initial, high-level summary of findings, per tower, shall be delivered to the Government NLT seven (7) calendar days after work on site is performed.

The initial draft report shall contain:

• Summary of findings

• Details of the structural analysis on tower and foundation including methods used and photographic evidence/examples focused on bucking, shifting, and cracking o All requests and justification for official or business-related imagery must be detailed in the SAR and shall be coordinated through the ARS PM (see PACAF memo in reference section)

• General observation of the tower

• Contractor’s recommendations for any further investigations that concern areas may warrant

• Contractor’s recommendations for any repairs that may be necessary before tower undergoes new radome installation

The full, comprehensive technical report should expand upon the initial findings and must be certified/stamped by the Alaska-licensed PE.

3.4. Tower Structure Technical Interchange Meeting (TIM)

The Contractor shall hold a TIM with the program office after each tower’s final delivery of CDRL A001 for purposes of discussing methods used/results of each structural analysis. The date and time of TIM(s) shall be coordinated with the Government, held NLT 14 calendar days after A001 final comprehensive technical report delivery, and include a Microsoft Teams dial-in option for geographically separated participants.

4. Security

(From PACAF memo; see reference section)

All visiting personnel are required to be favorably vetted by the PRSC Security Team prior to arrival at the site, without exception.

All coordination with the security team will be done through the PRSC Program Management Office.

SARs will not be approved without documented vetting by the security team.

Access to restricted areas must be requested and detailed in the SAR and shall be vetted through the

PRSC Security Team. A DISS (Defense Information System for Security) request MUST be submitted for access to Restricted Areas for all cleared personnel.

5. Service Summary:

Performance

Objective

PWS

Reference

Acceptable Quality Level (AQL) Method of

Surveillance

1. Perform On-Site

Structural

Inspection &

Analysis

Section 3.1

& 3.2

100% of defined inspection areas evaluated. Site inspection must be physically led by a certified Alaska-licensed Professional Engineer (PE). No safety violations during site visit.

100% Inspection /

Direct Observation by

Government Site

POC.

2. Deliver Initial

Draft Technical

Report

Section 3.3 Delivered No Later Than (NLT) 7 calendar days after work on site is performed. Report must include all 5 required elements (summary, methods/photos, observations, investigation recs, repair recs). Zero missing sections.

100% Review by

Government Program

Manager / Lead

Engineer.

3. Deliver Final

Comprehensive

Technical Report

Section 3.3

& CDRL

A001

Delivered NLT 30 days after work on site is performed. Document must be officially certified/stamped by an active Alaska-licensed PE. Must successfully incorporate or address 100% of Government

100% Review by

Government Lead

Engineer / Technical

Evaluator.

comments generated from the Draft

Report review.

4. Conduct

Technical

Interchange

Meeting (TIM)

Section 3.4 Scheduled and held NLT 14 calendar days after Final Report delivery. Meeting logistics successfully coordinated with the

Gov, including a functional Microsoft

Teams dial-in for remote participants.

Direct Observation by

Government

PM/Participants.

6. Attachments/Reference Documents

• FPS/117 Transceive Group/Tower Interface Criteria

FPS-117TECHDATA.p df

• 31P6-2FPS117(I)-21-1 (AN/FPS RADAR SYSTEM AN/FPS-117(V)1 7326377G1 AND

AN/FPS-117(V)4 7326378G4)

31P6-2FPS117(I)-21-

2.pdf

• 31P3-2FPS6-232-7 AB-259 (TOWER AB-259/FPS-6)

31P3-2FPS6-232-7_

AB259.pdf

• 31P6-2FPS3-375-2_AB199 (TOWER AB-199 USAF PART NUMBER AB-199)

31P6-2FPS3-375-2_

AB199.pdf

• 31P1-2GPS-15 (Rigid Radome; CW-396A/GPS, CW-396B/GPS)

31P1-2GPS-15_396A

Installation Proceedures.pdf

• FY26 Base Support Letter ARS (October 2025)

FY26 Base Support

Letter ARS.pdf

• Site Arrival Request (SAR) Link:

https://forms.osi.apps.mil/pages/responsepage.aspx?id=jbExg4ct70ijX6yIGOv5tM5OUa5-oGFPgULRQ_r_m4RURVpUVUJCVkkyOVZHRlpRQ0YwNjk4MjlGOC4u&route=shorturl https://forms.osi.apps.mil/pages/responsepage.aspx?id=jbExg4ct70ijX6yIGOv5tM5OUa5-oGFPgULRQ_r_m4RURVpUVUJCVkkyOVZHRlpRQ0YwNjk4MjlGOC4u&route=shorturl https://forms.osi.apps.mil/pages/responsepage.aspx?id=jbExg4ct70ijX6yIGOv5tM5OUa5-oGFPgULRQ_r_m4RURVpUVUJCVkkyOVZHRlpRQ0YwNjk4MjlGOC4u&route=shorturl