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An engine shop technician was sent to a line station for an ice impact repair. When completed the technician installed the fan blades and completed the job. No required inspection was performed on the fan blade installation.
| Attributes | |
| ACN | 697555 |
| Time | |
| Date | 200605 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 697555 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other other : 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : non compliance with legal requirements performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was dispatched from engine shop to maintenance hangar to perform an intake forward case ice impact repairs. When I arrived; a partial removal of fan blades had been initiated. I completed the fan blade removal; I performed my repairs and proceeded to reinstall all fan blades back in their original position. This procedure was performed and witnessed by my working partner. However; I signed for the repairs feeling that I was the amt in charge of the event. Informed my supervisor; however; other than rechking or quality assurance witnessing the torque; no other action should be required. When I informed my supervisor of this occurrence he told me that ZZZ1 mechanics were supposed to remove the fan blades and reinstall them. I am qualified to remove and install them here in the shop and no quality assurance is required. I feel that the shop practice of installing fan blades without rii requirement might have contributed to my mistake.
Original NASA ASRS Text
Title: AN ENG SHOP TECHNICIAN WAS SENT TO A LINE STATION FOR AN ICE IMPACT REPAIR. WHEN COMPLETED THE TECHNICIAN INSTALLED THE FAN BLADES AND COMPLETED THE JOB. NO REQUIRED INSPECTION WAS PERFORMED ON THE FAN BLADE INSTALLATION.
Narrative: I WAS DISPATCHED FROM ENG SHOP TO MAINT HANGAR TO PERFORM AN INTAKE FORWARD CASE ICE IMPACT REPAIRS. WHEN I ARRIVED; A PARTIAL REMOVAL OF FAN BLADES HAD BEEN INITIATED. I COMPLETED THE FAN BLADE REMOVAL; I PERFORMED MY REPAIRS AND PROCEEDED TO REINSTALL ALL FAN BLADES BACK IN THEIR ORIGINAL POS. THIS PROC WAS PERFORMED AND WITNESSED BY MY WORKING PARTNER. HOWEVER; I SIGNED FOR THE REPAIRS FEELING THAT I WAS THE AMT IN CHARGE OF THE EVENT. INFORMED MY SUPVR; HOWEVER; OTHER THAN RECHKING OR QUALITY ASSURANCE WITNESSING THE TORQUE; NO OTHER ACTION SHOULD BE REQUIRED. WHEN I INFORMED MY SUPVR OF THIS OCCURRENCE HE TOLD ME THAT ZZZ1 MECHS WERE SUPPOSED TO REMOVE THE FAN BLADES AND REINSTALL THEM. I AM QUALIFIED TO REMOVE AND INSTALL THEM HERE IN THE SHOP AND NO QUALITY ASSURANCE IS REQUIRED. I FEEL THAT THE SHOP PRACTICE OF INSTALLING FAN BLADES WITHOUT RII REQUIREMENT MIGHT HAVE CONTRIBUTED TO MY MISTAKE.
Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.