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REPAIR NAVAID TRESTLE STRUCTURE & INSTALL LIGHTNING PROTECTION

Active
Federal

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This project involves critical repairs and modifications to a wooden trestle structure supporting a dual antenna Instrument Landing System at Rota's airfield. The scope of work includes repairing deteriorated railings using wood to avoid signal interference, treating all structural lumber to withstand local weather conditions, and reconnecting equipment grounding per MIL-HDBK-419 standards. Additionally, the contractor will install two lightning protection structures positioned within the antenna's cone of protection according to military specifications. Managed by Navfac Europe Africa Central for the Department of the Navy, this effort is essential for maintaining pilot landing safety and preventing potential aircraft catastrophes. The repairs are also necessary to mitigate significant safety risks to maintenance personnel working at high elevations. The project is categorized under NAICS code 237990 and is currently listed as a forecast.

General Info

Navfac Europe Africa Central repairs wooden trestle and lightning protection at Rota airfield.

NAICS

237990 - Other Heavy and Civil Engineering Construction

Place of Performance

USA

Set-Aside

NONE

Documents

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Organization & Contact Information

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AgencyDepartment Of The Navy → Navfac Europe Africa Central
ContactsNo contacts available
OfficeN/A
Office AddressN/A
ContactsNo contact information available

Full Description

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The ILS (Instrument Landing System) is a dual antenna Navigational Aid (NAVAID) system located on Rota's airfield. One of the two antenna systems is situated on a tall, wooden trestle structure a little past the approach end of the runway. This antenna is associated to, but separate from, BLDG 3100. We would like to accomplish the following repairs/modifications to the trestle in order to ensure the safety of the equipment and the personnel who maintain it: 1. Repair deteriorated railings. The railings no longer have the capability to withstand a person's weight and need to be repaired. We would like to maintain the wood material as opposed to incorporating steel so that it does not interfere with the antenna's signal. 2. Treat lumber for the environment. The cross bracing, decking, rails, girders, railings, and beams need to be treated for the environment so that the wood material can withstand the local weather conditions. 3. Reconnect equipment grounding. The equipment ground was discovered to be disconnected and needs to be reconnected in accordance with MIL-HDBK-419 para 2.2.2.2. 4. Install two lightning protection structures on either side of the trestle structure in accordance with MIL-HDBK-419 para 2.2.3. Specific distance and placement restrictions are still being researched. However, we would like the lightning protection to be within the antenna's cone of protection in accordance with MIL-HDBK-419 para 3.5.2. Justification / Impact if not executed This NAVAID system is critical to pilot landing safety. If these repairs are not executed, the equipment could be severely damaged leading to a potential aircraft catastrophe. Additionally, it could lead to the injury or death of the equipment maintainers due to its high elevation.

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