Industrial Hangar Fans Maintenance

PWS date 20 Aug 2026 Page 1 of 16 PERFORMANCE WORK STATEMENT INSPECTION AND SUSTAINMENT OF LOW-SPEED HIGH VOLUME (LSHV) INDUSTRIAL FANS 12 MXG/MXOP The 12th Maintenance Group (12 MXG/MXOP) requires a service maintenance contract for the annual preventative maintenance of twenty-one (21) existing ceiling mounted industrial fans and replacement of three (3) of those fans to maintain operational readiness at the Joint Base San Antonio, Randolph Air Force Base (JBSA-Randolph) aircraft hangars. Effective air circulation in flight line facilities is critical for personnel safety, aircraft performance, and overall mission success. Since installation five years ago, the fans have not been serviced, increasing the risk of mechanical failure. An inoperable fan system poses a significant threat to both personnel (heat-related injuries) and sensitive aircraft components. This contract proactively maintains the integrity and safety of these vital hangar environments and mitigates the risks associated with equipment failure. 1.0 SCOPE. This PWS defines the requirements for a non-personal services to provide maintenance, repair, and installation at JBSA-Randolph. The contractor shall provide all supervision, labor, tools, materials, parts, transportation, and equipment (including any mechanical equipment serving as a platform lift(s) to reach ceilings) to replace inoperable existing fans, perform annual preventative maintenance, diagnostics, and optional repairs for twenty-one (21) fans located across nine (9) buildings. 1.1 Non-Personal Services. The government will neither supervise contractor employees, nor control the methods the contractor performs the required tasks, nor prepare work schedules for individual contractor employees; however, the contractor shall consider the Government’s duty hours and work schedule. If the contractor feels that any actions constitute or are perceived to constitute personal services, the contractor shall notify the Contractor Officer (CO) immediately. 2.0 APPLICABLE DOCUMENTS. The contractor shall comply with the following documents and standards in the performance of this contract: • Original Equipment Manufacturer (OEM) Maintenance and Safety Manuals • National Electrical Code (NEC) Standards • Air Force Occupational Safety and Health (AFOSH) Standards • National Fire Protection Association (NFPA) Standards • Unified Facilities Criteria (UFC) and applicable ETL fire safety standards 3.0 REQUIREMENT 3.1 Preventative Maintenance. The Contractor shall perform preventative maintenance (PM) on all fans. To ensure standardized annual intervals, the Contractor shall execute the -- 1 of 16 -- PWS date 20 Aug 2026 Page 2 of 16 required maintenance no earlier than four (4) months and no later than seven (7) months into the period of performance. All twenty-one (21) fans shall be inspected, cleaned, and maintained in accordance with Original Equipment Manufacturer (OEM) specifications. The Contractor shall coordinate dates with the COR at least 14 calendar days in advance of the scheduled event. 3.1.1 The contractor shall perform the following specific tasks: • Inspect hub and airfoils for signs of damage. • Remove airfoils for further inspection if hub material is cast aluminum. • Check tightness of all mounting hardware with a torque wrench to OEM specifications. • Check breather cap and oil levels (if applicable) and inspect for any signs of leakage. • Check safety cables and guy wires for proper tension and security. • Check and verify the fan mounting method, ensuring the fan is plumb and level. • Inspect the entire fan assembly for signs of corrosion, discoloration, pitting, or flaking. • Visually inspect all welds and supplemental steel supports. • Verify electrical connections, wiring methods, and raceway isolation. • Verify fault history, check for proper fuse sizing, and ensure maximum Hz has not been changed in the VFD. 3.1.2 Additional specific tasks shall be conducted by the contractor: (a) Structural and Safety Inspections on the Fans and Mounting Structures include checking for zero structural defects, fatigue, or buckling left unaddressed after scheduled PM. This includes a visual inspection for obvious defects like cracks, structural deformities, loose components, and signs of overstress or fatigue in the fan blades, mounting brackets, and supports. The contractor shall check for proper blade alignment, secure attachment of all components, and adequate clearances. (b) Corrosion and Mitigation Inspections include visual inspections of fan components including all surfaces free of unmanaged rust or corrosion; and submit documentation with their findings. During the inspection, check for corrosion on ceiling-mounted industrial fans, examine all fan surfaces and components for corrosion; including a thorough visual inspection of the fan blades (top and bottom), the motor housing, mounting brackets, safety guards, and associated hardware for any signs of rust, pitting, discoloration, or material degradation. The inspection shall encompass areas prone to moisture accumulation or exposure to harsh environments. (c) Installation and Hardware Integrity Inspections include physical and electrical testing of fasteners, hardware, and safety wires are securely torqued and aligned. This includes verifying the fan's alignment for level and plumb installation, ensuring the -- 2 of 16 -- PWS date 20 Aug 2026 Page 3 of 16 blades rotate freely and correctly without obstruction, and confirming the unit is securely mounted according to manufacturer specifications and relevant building codes. The contractor shall also inspect all electrical connections and safety features. Furthermore, they must meticulously check for any missing or loose hardware – from bolts and screws to cotter pins and safety wires – on the fan itself, its mounting brackets, blade assemblies, and any associated guards or components. (d) Mechanical and Electrical Systems Checks include …