Regional Jet 900 (CRJ900)
Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Company Policy; Chart Or Publication; Equipment / Tooling; Procedure; Manuals; Human Factors; Incorrect / Not Installed / Unavailable Part
Aircraft arrived with AFT CARGO SOV [Shut Off Valve] msg on Eicas.I climbed into avionics bay and JB10 [Junction Box 10] latches were not engaged and were hanging down. Junction box 10 was sitting loosely in its rack. Upon removing PCB2 [Electronic removable Card] the relay K41 had two rubber spacers installed and was not making contact. I also found a walkie-talkie in-between the air conditioning ducts next to JB10. Relay K41 in JB10 was not installed properly; found JB10 not latched.Reseated JB10 and reinstalled new relay in PCB2 K41. Reassembled and latched JB10 properly. Complied ops check of the Aft cargo shut off valve.complied with operation and functional for JB10 checks In accordance with Manual; no further defects noted.
Reporter stated that shoddy workmanship was previously performed on the aircraft when it arrived.
CRJ-900 Mechanic reported avionics equipment was not properly reinstalled following previous maintenance action.