Ps-855b Maintenance Manual -
The PS-855B Maintenance Manual (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
Maintenance for the PS-855B is governed by L3 Service Letter SL-170, which outlines the mandatory periodic checks and testing intervals. ps-855b maintenance manual
4.0 INSTALLATION
4.1 Location
Select a location free from excessive vibration, moisture, and ambient temperatures exceeding the rating. Ensure the switch is accessible for maintenance. Core Technical Specifications Maintenance for the PS-855B is
As of April 2023, production and publication services for these units have transitioned from Extant Aerospace Primary Manual CMM TP-483 (ATA 24-30-08) Service Literature Service Letter SL-170 provides detailed battery care and charging instructions. from the CMM or a list of authorized service centers for this unit? L3Harris PS-855B | SEAEROSPACE.COM As of April 2023, production and publication services
Remote Capability: For increased accessibility, this test can often be performed remotely from the cockpit or directly at the unit. Other Notable Manual Features