Bell Helicopter 407
Maintenance Airframe; Maintenance Powerplant
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Human Factors; Manuals; Procedure
Planned scheduled maintenance for AAIP (Approved Aircraft Inspection Program); 12 month Main Rotor Hub and Blade Assembly inspection. Installed received MicroVib II vibration analyzer tool and proceeded with the inspection. Track and balance was well within limits after the first maintenance flight and no adjustments were needed and done. The vibration analyzer tool was then removed; inspection signed off in logbook and aircraft returned to service. Two days later; I was told to send the vibration analyzer tool to another base and while going through my [aviation maintenance software]; I noticed the vibration analyzer I have received was overdue for calibration. I notified my Regional Maintenance Director and informed him the situation and was then told to take the aircraft out of service until an up to date calibrated vibration analyzer tool was received and the 12 month Main Rotor Hub and Blade Assembly inspection was re-performed. The next day; a calibrated vibration analyzer tool was received and the inspection was re-performed and signed off in the logbook; and aircraft returned to service.Special tools being received at the base should be reviewed for proper tool calibration certificate; decals and overall condition. Also Tool Department and/or personnel shipping out special tools should be aware of its calibration date and overall condition before physically shipping tool out.
Aircraft Technician reported using a vibration analyzer tool with overdue calibration.