Commercial Fixed Wing
Maintenance Apprentice; Maintenance Powerplant
Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Environment - Non Weather Related; Human Factors; Procedure
I was informed [of] a P/N XX-XXX-XX PBE being installed on Aircraft X and inflight [crew] not being trained how to use it.Mr. X requested that I look into the PBE's. I activated PBE P/N XX-XXX-XX which was already setup in the system so that purchasing could procure the parts as replacements for the discontinued PBE XX-XXX-YY's that expire late July. PBE XX-XXX-XX had previously been an alternate part in the IPC.  During a routine check; maintenance replaced P/N XX-XXX-YY on WO XXXXXXXXX due to it expiring in less than 45 days. This replacement included ordering the XX-XXX-XX from the IPC with bracket XXXXXXXX and mounting hardware. A system-generated; scheduled WO YYYYYYYYY due for replacement by the end of July had a new P/N XX-XXX-YY PBE request attached. In response to Mr. X request and in accordance with the IPC; I activated PBE P/N XX-XXX-XX. The part must be active to purchase and to save any changes to remarks and links in the system. In this instance; there are processes that could have been improved. Had the X form been used; I would have been triggered to get with inflight [crew]. The P/N XX-XXX-XX was already set up in the system as a rotable with the life limit.When we parked the aircraft and moved them to storage; I suggested that the PBE's be removed and returned to stores to get the most yield out of the current XX-XXX-YY PBE's.
Technician reported installing a new PBE on an aircraft without informing; nor training the flight crew on how to use it.