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Mechanic reports he was informed after a maintenance audit he had removed and replaced a standby altimeter on an emb-135LR (erj-135LR); using a pitot static test set with an out-of-date calibration.
| Attributes | |
| ACN | 799325 |
| Time | |
| Date | 200808 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 135 ER&LR |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 799325 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : scheduled maintenance performance deficiency : testing performance deficiency : repair performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was notified by my supervisor that during an audit it was discovered that a pitot static test set was found to be out of calibration. I removed and replaced a standby altimeter per emb-135 maintenance manual. It was discovered that the test set that I used was out of calibration. I was focused on my task of repairing the problem; and didn't set aside to look at the calibration date. My supervisor spoke with me once my shift started and I immediately filed a report. I was focused at the task at hand and overlooked the calibration date. I will pay strict attention to details while performing any maintenance task with calibrated tools. I noticed on the tool log that the calibration date was not written down. It would help if stores and I paid more attention to details to prevent un-calibrated tool from leaving stores.
Original NASA ASRS Text
Title: MECHANIC REPORTS HE WAS INFORMED AFTER A MAINT AUDIT HE HAD REMOVED AND REPLACED A STANDBY ALTIMETER ON AN EMB-135LR (ERJ-135LR); USING A PITOT STATIC TEST SET WITH AN OUT-OF-DATE CALIBRATION.
Narrative: I WAS NOTIFIED BY MY SUPVR THAT DURING AN AUDIT IT WAS DISCOVERED THAT A PITOT STATIC TEST SET WAS FOUND TO BE OUT OF CALIBRATION. I REMOVED AND REPLACED A STANDBY ALTIMETER PER EMB-135 MAINT MANUAL. IT WAS DISCOVERED THAT THE TEST SET THAT I USED WAS OUT OF CALIBRATION. I WAS FOCUSED ON MY TASK OF REPAIRING THE PROB; AND DIDN'T SET ASIDE TO LOOK AT THE CALIBRATION DATE. MY SUPVR SPOKE WITH ME ONCE MY SHIFT STARTED AND I IMMEDIATELY FILED A RPT. I WAS FOCUSED AT THE TASK AT HAND AND OVERLOOKED THE CALIBRATION DATE. I WILL PAY STRICT ATTN TO DETAILS WHILE PERFORMING ANY MAINT TASK WITH CALIBRATED TOOLS. I NOTICED ON THE TOOL LOG THAT THE CALIBRATION DATE WAS NOT WRITTEN DOWN. IT WOULD HELP IF STORES AND I PAID MORE ATTN TO DETAILS TO PREVENT UN-CALIBRATED TOOL FROM LEAVING STORES.
Data retrieved from NASA's ASRS site as of May 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.