This article provides the Procedure for Replacing/reseating the FPC's Cards in the SRX 5k series (SRX5400, SRX-5600 SRX-5800).

• FPC cards in SRX 5k series (SRX5400, SRX-5600, SRX-5800) exhibiting hardware issues or errors.
• Adding New FPC cards in SRX 5k series (SRX5400, SRX-5600, SRX-5800) 

Replacing/Reseat the FPC cards on the 5K series. 

For the replacement/reseating of the FPC cards on the SRX5800 Please follow the below.
https://www.juniper.net/documentation/us/en/hardware/srx5800/topics/topic-map/srx5800-maintaining-line-cards-modules.html#id-maintaining-interface-cards-and-spcs-on-the-srx5800-services-gateway

For the replacement/reseating of the FPC cards on the SRX5600 Please follow the below.
https://www.juniper.net/documentation/us/en/hardware/srx5600/topics/topic-map/srx5600-maintaining-line-cards-modules.html

For the replacement/reseating of the FPC cards on the SRX5400 Please follow the below.
https://www.juniper.net/documentation/us/en/hardware/srx5400/topics/topic-map/srx5400-maintaining-line-cards-modules.html

https://www.juniper.net/documentation/en_US/release-independent/junos/information-products/topic-collections/hardware/srx-series/srx5800/index.html?topic-34422.html