Gulfstream 1159GSE57005-1 TROV Cover with 110V Fan

The 1159GSE57005-1 TROV Cover with Fan is designed to protect the thrust recovery outflow valve (TROV) opening and provide assisted cooling via its 110V fan during extended aircraft power-up. By directing airflow through the TROV area, it reduces heat buildup in the vestibule and cockpit of aircraft with PlaneView avionics systems, helping to maintain comfort and operational integrity.

This TROV cover is certified for use on select Gulfstream aircraft models, including the GV, G500, and G550. Always verify the fit and function suitability against the aircraft’s maintenance documentation to confirm compatibility before purchase or installation.

Yes. The part is identified by NSN 4920-01-670-0322, which standardizes its identification across logistics systems and supports global procurement, tracking, and inventory management for aircraft ground support equipment. Using the NSN ensures consistent specification reference within military and commercial aviation supply chains.

The built-in 110V fan circulates air through the TROV area, helping to dissipate heat during power-on or avionics bench-testing conditions. This airflow helps protect sensitive electronics and improves technician comfort in the cockpit and forward fuselage area, particularly during preflight checks or extended ground power usage.

No. This cover is intended as a temporary ground support device, used only during powering up or maintenance-mode operations. It should be removed before flight to restore the normal airflow path through the TROV system and maintain aircraft certification compliance.

Store the cover in a clean, dry space away from chemicals, UV exposure, and extreme temperatures. Ensuring proper storage helps protect the fan motor, wiring harness, and cover fabric, extending service life and maintaining readiness for use across multiple aircraft cycles.

Yes. Periodic inspection of the 110V fan, wiring, and mounting hardware is recommended. Check for debris accumulation, verify that the fan operates smoothly without unusual noise or vibration, and clean or lubricate moving parts according to the manufacturer's guidelines to maintain reliable cooling performance.

By reducing heat buildup in the aircraft’s avionics and vestibule compartments, the cover supports system reliability and helps preserve the life of electronic components. This proactive cooling measure enables ground crews to carry out testing and servicing without risking thermal stress on avionics or cabin systems.

Confirm that the part is sourced with traceable documentation and conforms to Gulfstream specifications for part number 1159GSE57005-1. Ask for a Certificate of Conformance (CofC) when required for your quality system, and verify that the part’s condition aligns with industry standards for protective covers and ground-support equipment.

During ground power or avionics testing, an excess thermal load in the fuselage can arise from sustained electrical power. Installing the TROV cover with its fan circulation helps manage the heat, enabling technicians to use ground power systems safely and effectively while avionics remain operational.