Federal Aviation Administration

STATEMENT OF WORK (SOW)

For

US Coast Guard Towers Certified Professional Engineer Document Review

US Coast Guard Towers Maintenance and Repair Program

PREPARATION DATE: June 30, 2026

REVISION NUMBER: -

Table of Contents

1.0 Background

2.0 Purpose

3.0 Scope of Work

3.1 Place of Performance

3.2 Period of Performance

3.3 Performance Objectives

4.0 Government Furnished Information

5.0 Travel

1.0 Background

The US Coast Guard’s Shore Infrastructure Logistics Center Civil Engineering Units provide planning and execution of regional shore facility projects across five districts, Arctic, Atlantic, Southwest, Northwest, Oceania. These communication towers require periodic inspection and repair to remain safe and accomplish their intended mission. The United States

Coast Guard (USCG) has entered into an interagency agreement (IAA-A2407-070-069-064499) with the Federal Aviation Administration Logistics Center (FAALC) to provide a centralized USCG site inspection program to enhance the reliability of these critical assets. The FAALC possesses the necessary technical expertise, personnel, and equipment to provide this scope of service.

2.0 Purpose

The purpose of this Statement of Work (SOW) is to obtain a licensed Professional Engineer (PE) for the review and approval of documents and drawings produced as a function of preventive and corrective maintenance actions.

3.0 Scope of Work

The contractor shall review and approve tower inspection reports that are produced post site inspection by FAA technical personnel. Other documents may be created that require review and approval for repairing towers to ensure; compliance with Industry Standard TIA-222-I, the safety of maintenance crews, and protection of property in the vicinity of the tower sites. These types of documents include structural analysis and plans to repair or replace tower structural members, guy wires, or associated hardware. FAALC Engineers will create all required documents and submit them to the contractor for a licensed PE review. The PE will indicate acceptance by affixing his/ her stamp of approval on the document. Original documents will be retained by the FAALC. In the event deficiencies are discovered during the review process, the contractor shall detail these findings and offer supporting documentation as to how these deficiencies were determined. The

PE will have direct control over the documents, therefore the FAALC will revise the documents as required by the PE and re-submit them for review and approval.

Estimated number and type of reports

Tower Inspection and Maintenance reports 79 individual sites are to be inspected

Structural Analysis or Repair plans Up to 20 sites may require an updated structural analysis or engineering design to remediate deficiencies

Table 1 – Types of Reports

• All maintenance reports require PE stamp and approval. Examples of repair plans could include:

• Replace individual guy wires or guy anchors,

• Replace corroded studs attaching the tower base to the foundation.

• Remediate other structural deficiencies noted from previous inspections

3.1 Place of Performance

All Tower locations are within the Continental United States and United States territories. All PE approval work is expected to be performed at the contractor’s facility. If travel is deemed necessary by the government, the travel shall be billed in accordance with Section 5.0

3.2 Period of Performance

12 months from time of award.

3.3 Performance Objectives

All tower reports submitted to the contractor must be reviewed and accepted or rejected within 15 days after the FAA submits them to the contractor.

4.0 Government Furnished Information

The FAALC shall deliver preliminary reports for PE review within 15 days of inspection completion.

5.0 Travel

All contractor travel shall be preauthorized by the FAA Contracting Officer and must comply with the government-published per diem and lodging rates available on Per diem rates| GSA. Any deviation from these approved rates must be coordinated with and approved by the FAA

Contracting Officer prior to travel.

https://www.gsa.gov/travel/plan-book/per-diem-rates?_gl=1%2A1q48clz%2A_ga%2ANTI4MjI0NDUyLjE3NjA1NTQ5MzY.%2A_ga_HBYXWFP794%2AczE3Njg1MDE2NjckbzEzJGcxJHQxNzY4NTAxNjc0JGo1MyRsMCRoMA

Attachment 1 – Example Maintenance Report

Inspection and Maintenance Report

Tower/Site Name:

Tower RPUID (Tower Identification Number: 813382 Tower Type (guyed, self-supporting, monopole, etc.): Self-Supporting Tower Height: 63'0" (estimated; not climbed to full height due to unsafe tower)

Address: 2401 Hawkins Point Rd, Curtis Bay, MD

Latitude in decimal degrees format (DDD.DDDDD0): 39.20022 Longitude in decimal degrees format (DDD.DDDDD0): -76.57017

Contractor (Compan Contract Number:

Task Order Number:

Inspector Names:

Inspection date(s): October 1, 2021

Report Date: November 1, 2021

POS: 39.200326°N, 76.570151°W ±13ft ALT: 33ft

Registered Professional Engineer

Tower Information

1. General Comments: The had scheduled maintenance performed on October 1, 2021 by . crew members. The self supporting tower is 63'0" (estimated; not climbed to full height due to unsafe tower). It is located in Curtis Bay, MD.

Unused equipment item(s) on the tower: None Is a lightning rod/dissipation system installed: No

2. Chronological Narrative: See #9 on this report for the chronological narrative.

3. Tower Components: The overall tower condition was found to be unsafe. The tower is a

Rohn 25 model. The original tower is 39'1". At the top of it, an additional 18'11" of tower was installed to bring the overall tower height to roughly 58'. The spliced connection consists of the existing top plate (39'1") being bolted to a Rohn pivot base plate for the top 18'11" section. This is an improper connection, and the tower is not safe to climb in this condition. It is recommended that the top and bottom plates at 39' 1" be removed and the tower legs from both sections be connected together according to the manufacturer's specifications. For more information, see the ANSI/TIA-222-H Annex J Maintenance and Condition Assessment in item #10 of this report.

4. Lighting System: Not applicable; the tower is not lit. For more information, see section

C in item #10 of this report.

Is/are the tower light(s) illuminated:

Does the lighting system have monitoring:

If monitored, date/time of call made to the NOC:

5. Lighting System Inventory:

Tower Name Lighting System

Lighting Level/Qty Lamp Type/Size/Model #

Confirmation the Tower is FAA Compliant (Yes/No)

Yes Controller(s) Type(s): N/A

6. Paint System: Not applicable; the tower is not painted. The tower steel is in satisfactory condition, but the bolts are corroded. For more information, see section B in item #10 of this report.

7. Tower Aspect: Not applicable; this is not a guyed tower.

8. Tower Height Verification:

Tower Name

XXXXXXX

Height of Foundation

0'0"

Height of Base Insulator

NIA

Height of Tower

58'0" (estimated)

Height of Highest Appurtenance

5'0" (estimated)

Total Height

63'0" (estimated)

Chronological Narrative

9. Chronological Narrative: See charts below for the chronological narrative of each day on site.

a. Maintenance Accomplished:

i. Areas of rust were cold galvanized, but tower bolts should still be replaced; photos 16-17

b. Equipment Used:

i. None

c. Miscellaneous Inspection Items:

i. There is no safety climb system on the tower; issue F.1; photo 6

ii. The two tower sections are improperly connected; see #3 on the previous page of this report for more info; issue Al; photos 8-9

iii. The two tower-to-building brackets are rusted; issue B.2; photos 10-11

iv. Most of the tower bolts are rusted; issue B.2; photos 12-14

Date: October 1, 2021

Weather Conditions: Sunny Wind: 5 MPH

Time Work Performed 0730-0745 Safety meeting

0745-0900 Performed ground and partial-climbed inspection

0900 Left site

10. ANSI/TIA-222-H Annex J Maintenance and Condition Assessment (Checklist format):

A. Structure Condition

A.1 Damaged Members (Legs and Bracing) Good Possible

Improvement X Needs

Repair Not Applicable

Notes: The two tower sections are improperly connected; see #3 on page 2 of this report for more info.

A.2 Loose Members X Good Possible

Improvement Needs

Repair Not Applicable

Notes: 7

B. Finish

C. Lighting (external portions of components only)

C.1 Conduit, junction boxes, and fasteners (weather tight and secure) Good Possible

Improvement Needs

Repair X Not Applicable

Notes:

C.2 Drain and vent openings (unobstructed)

Good Possible 8 Improvement Needs

Repair X Not Applicable

A.3 Missing Members X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

A.4 Loose and/or missing bolts and/or nut locking devices X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

A.5 Visible cracks in welded connections including cracks underneath canister mounts for flag poles and other similar connections X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

A.6 Pole flange and base plate cracks visible in base metal or at ends of plate stiffeners (cracks in base metal may only be visible on the inside surface of a pole) X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

A.7 Record Temperature, wind speed and direction, and other environmental conditions 52 Temperature 3

MPH

Wind Speed w Wind

Direction SUNNY Weather

Condition Notes:

B.1 Paint and/or galvanizing condition

Improvement Needs

Repair Not Applicable

Notes:

B.2 Rust and-or corrosion condition including mounts and accessories

Good Possible Improvement

X Needs Repair

Not Applicable

Notes: The two tower-to-building brackets and most of the tower bolts are rusted.

B.3 FAA or ICAO color marking conditions

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

B.4 Water collection in members (to be remedied, e.g., unplug drain holes, etc.)

X Good Possible improvement Needs

Repair

C.3 Wiring condition

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

C.4 Light Lenses

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

C.5 Bulb Condition

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

C.6a Controllers - Flasher

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

C.6b Controllers - Photo Control

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

C.6c Controllers -Alarms

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

C.7 Obstructions to lighting system

Good Possible Improvement

Needs Repair

Notes

D. Grounding

D .1 Connections

Improvement Needs

Repair Not Applicable

Notes:

D.2 Corrosion X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

D.3 Lightning Protection (Note: lightning rods are not required for the protection of the structure in accordance with ANSI/TIA-222-H standard, but may be required at or near the top of the structure for the protection of equipment or lighting systems.

Good Possible Improvement

Needs Repair

E. Appurtenances such as Mounts, Antennas and Lines

E. la Antenna and Mount condition - Proper tie-back of microwave dishes X Good Possible 9

Improvement Needs

E.lb Antenna and Mount condition - Damage to supporting structure at connections X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.lc Antenna and Mount condition - Defects defo1mations loose, missing members, etc.

X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.ld Antenna and Mount condition - Loose or missing hardware X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.le Antenna and Mount conditions - Condition of antenna covers X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.2a Feed line condition - Flanges seals dents, jacket damage, grounding etc.

X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.2b Feed line condition - Properly secured/supported on the structure and mount X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.2c Feed line conditions - Hanger condition (snap-ins, bolt on, kellem grips, etc.)

X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

E.2d Feed line conditions - Secured to structure (waveguide ladder) X Good Possible

Improvement Needs

Repair

F. Other appurtenances (Ice shields, walkways, platforms, climbing facilities, sensors, floodlights, etc.)

F. l Condition

Improvement X Needs

Repair Not Applicable

Notes: There is no safety climb system on the tower.

F.2 Obstructions to climbing path or safety climb systems X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

F.3 Defects, deformations, loose or missing members, etc.

X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

F.4 Loose or missing hardware

G. Insulators (Base insulator, AM detuning kits, fiberglass rods, porcelain insulator, non-metallic guys, etc...)

H. Guys

H. l Strand condition (corrosion, breaks, nicks, kinks, etc.)

Good Possible

Improvement Needs

Repair X Not Applicable

Notes:

H.2a.i Guy hardware conditions - Turnbuckles or equivalent: Thread extended past body

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2a.ii Guy hardware conditions - Turnbuckles or equivalent: Seemed with safety cable or equivalent

Good Possible Improvement 11

Needs Repair

Improvement

Needs Repair

Not Applicable

Notes:

F.5 Secured to structure X Good Possible

Improvement Needs

Repair

G.l Cracking and chipping

Improvement Needs

Repair X Not Applicable

Notes:

G.2 Cleanliness of insulators

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

G.3 Spark gaps

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

G.4 Isolation transfo1mer

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

G.5 Bolts and connections

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

G.6 Delamination, UV degradation, rod slippage

Good Possible Improvement

Needs Repair

H.2a.iii Guy hardware conditions - Turnbuckles or equivalent: Cracks, defects, damage, etc.

Improvement

Needs Repair

X Not Applicable

Notes:

H.2b Guv hardware conditions - Cable thimbles

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2c Guy hardware conditions - Ice clips

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2d.i Guy hardware conditions - Cable connectors (end fittings): Cable clamps applied properly and bolts tight

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2d.ii Guy hardware conditions-Cable connectors (end fittings): Wire serving

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2d.iii Guy hardware conditions - Cable connectors (end fittings): Slippage or damaged strands

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2d.iv Guy hardware conditions - Cable connectors (end fittings): Dead-end grips - fully wrapped. end sleeve/ice clips on anchor end)

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2d.v Guy hardware conditions - Cable connectors (end fittings): Poured sockets - signs of separation, twisting, etc.

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2d.vi Guy hardware conditions - Cable connectors (end fittings): Shackles, bolts, pins, and cotter pins

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.2e Guy hardware conditions - Inspection tension rods / anchor rods welded to fan plates for fatigue cracks

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

H.3a Guy tensions - Measure

Good Possible Improvement

Needs Repair

H.3b Guy tensions - Record temperature, wind speed and wind direction (note: minor variations in guy tensions are to be expected due to temperature, wind speed conditions, anchor elevation differences, etc.)

Temperature Wind Speed Wind Direction

Weather Condition

I. Concrete Foundations

I.la Ground condition - Settlement, movement or earth cracks

Improvement Needs

Repair Not Applicable

Notes:

I.1b Ground condition - Erosion X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

I.le Ground condition - Site condition (standing water, drainage, trees, etc.)

X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

I.2a Anchorage condition- Top and bottom base plate nuts tight

Good Possible Improvement

Needs Repair

X Not Applicable

Notes I.2b Anchorage condition - Nut locking device

Good Possible Improvement

Needs Repair X Not Applicable

Notes:

I.2c Anchorage condition - Grout condition

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

I.2d Anchorage condition - Anchorage

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

I.2e Anchorage condition - Anchor rods

Good Possible Improvement

Needs Repair X Not Applicable

Notes:

I.3a Concrete condition – Cracking, spalling or splitting X Good Possible

Improvement Needs

Repair Not Applicable

Notes:

I.3b Concrete condition - Chipped or broken concrete X Good Possible

Improvement Needs

Repair Not Applicable

I.3c Concrete condition - Honeycombing

Needs

Repair Not Applicable

Notes:

I.3d Concrete condition - Low spots to collect moisture X Good Possible

Improvement Needs

Repair

J. Guyed Mast Anchors

J. l Settlement, movement, or earth cracks

Improvement Needs

Repair X Not Applicable

Notes:

J.2 Grade sloped away from anchors

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

J.3 Anchor shaft condition below 1zrade

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

J.4 Corrosion control measures (galvanizing, coating, concrete encasement, cathodic protection systems, etc.)

Good Possible Improvement

Needs Repair

X Not Applicable

Notes:

J.5 Anchor heads above grade, clear of vegetation, obstructions, etc. and turnbuckles free to articulate

Good Possible Improvement

Needs Repair

K. Site Conditions

K. l Perimeter fences and gates

Needs

K.2 Anti-climbing devices or signs

Needs

K.3 Unused equipment or hardware (mounts, old lighting systems, etc... ) X Good Possible

Improvement Needs Repair

Not Applicable

Notes:

K.4 Miscellaneous X Good Possible 14

Improvement Needs

Notes: X

Photo 1. Tower ID

Photo 2. Overall Tower View

Photo 3. Overall Tower Area

Photo 4. Tower Foundation (1)

Photo 5. Tower Foundation (2)

Photo 6. View Looking Up From Ground

Issue F.1

POS: 39.200233°N, 76.570209°W ±16ft ALT: 31ft

POS: 39.200265°N, 76.570207°W ±16ft ALT: 26ft

POS: 39.200248°N, 76.570149°W ±26ft ALT: 39ft

POS: 39.200225°N, 76.570092°W ±13ft ALT: 46ft

Photo 7. View Looking Up From Rooftop

Photo 8. Tower Base Connection at Rooftop (1)

Issue A.1

POS: 39.200253°N, 76.570171°W ±13ft ALT: 8ft Photo 9. Tower Base Connection at Rooftop (2)

Issue A.1

POS: 39.200243°N, 76.570227°W ±13ft ALT: 26ft Photo 10.

Tower-to-Building Bracket A

Issue B.2

Photo 11.

Tower-to-BuiIding Bracket B

Photo 12. Typical Rusted Tower Bolts (1)

Photo 14. Typical Rusted Tower Bolts (3)

Photo 15. Typical Spot Priming (1)

Photo 16. Typical Spot Priming (2)

POS: 39.2002 1°N,76.570305°W ±1 ALT:19ft

POS: 39.200315°N, 76.570135°W ±13ft ALT:37ft

Photo 17. Typical Spot Priming (3)

Photo 18.

Antennas (1)

Photo 19.

Antennas (2)

Photo 20. Tower Height

Recommendations and Cost Estimate

11. Recommendations:

Immediately (Within 1-2 Years):

i. Remove the top and bottom plates at 39' 1" and connect the tower legs from both sections according to the manufacturer's specifications (will need engineer design);

issue A.1; photos 8-9

ii. Clean and paint the two rusted tower-to-building brackets with zinc-rich paint; issue B.2;

photos 10-11

iii. Replace all rusted tower bolts; issue B.2; photos 12-14

Routine (Within 2-4 Years):

i. None

Modifications for OSHA Compliance:

i. Install a 3/8" safety climb cable system; issue F.1; photo 6

12. Tower Tension Plumb and Twist Measurements: Not applicable; this is not a guyed tower.