Maintenance Airframe; Maintenance Inspection Authority; Maintenance Repairman; Maintenance Powerplant
Maintenance Inspector 19; Maintenance Lead Technician 19; Maintenance Repairman 10; Maintenance Technician 21
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Procedure
Fire bottle improperly reinstalled; not caught during quality inspection.This morning it was brought to my attention that a work order was begun on a Hawker 400XP to perform an inspection and hydrostatic test of the LH and RH engine fire bottles. The assigned mechanic removed the fire bottles and sent them to [Company] for inspection and testing. [Company] performed the inspections and tests; then shipped the fire bottles back to our repair station; where the assigned mechanic reinstalled the bottles in the aircraft. I performed the quality inspection. The work order was resolved with; 'reinstalled bottles in accordance with Beechjet 400 MM Ch. 26-XX-XX. Functional check complied with in accordance with Beechjet MM Ch. 26-XX-XX. Operations check good; no defects noted.' This resolution was signed by assigned Mechanic and myself as inspector.The aircraft visited another repair station for unrelated Maintenance; where it was discovered that both electrical connectors for the LH engine fire bottle had been connected to a single squib in that bottle; rather than to two independent squibs. This incorrect installation resulted in the pre-flight test of the fire bottles resulting in normal indications; but could have resulted in an inoperative fire bottle in the event of an engine fire. The pilot of the aircraft emailed me;about this error. I opened that email after returning to work.
[Second narrative contains no additional information]
Technician reported that both electrical connectors were installed on a single squib during fire bottle installation.