B757 Undifferentiated or Other Model
Maintenance Airframe; Maintenance Powerplant
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
General Maintenance Action
Aircraft; Company Policy
Aircraft X has history of NGS (Nitrogen Generation System) faults troubleshoot from behind desk; no help. Found NGS filter housing cracked. This is a recurring issue; the same part was being robbed from Aircraft Y for Aircraft X same part cracked. An [Engineering Order] needs to be issued to inspect our 757 fleet.Issue an [Engineering Order] to inspect this part on our 757 fleet; also not have someone try to repair the crack with epoxy to get the aircraft out.
Aircraft mechanic reported the Nitrogen Generation System filter housing was found cracked and is a recurring issue.