Ps-855b Maintenance Manual !link! Jun 2026

Tools like the Shockboxes BFG Test Box allow maintenance shops to perform load tests and charging functions in-house.

The (formally identified as Component Maintenance Manual TP-483 ) is the primary technical document used for the installation, operation, and servicing of the L3Harris (formerly JET or B.F. Goodrich) PS-855B Emergency Power Supply. This self-contained unit is critical for aviation safety, providing backup power to essential flight instruments like attitude gyros and standby indicators during a total aircraft electrical failure. Core Technical Specifications ps-855b maintenance manual

: Guidelines are provided for maintaining the unit when not in active use, including procedures to prevent outgassing and ensure a full charge (rechargeable to 50% capacity within one hour at 25°C). Southeast Aerospace Inc. JET PS-855B 501-1712-02 | Duncan Aviation Tools like the Shockboxes BFG Test Box allow

, search for the numbers printed on the circuit board inside the device (e.g., PCB-855B ). This self-contained unit is critical for aviation safety,