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A ge CF6-80c2 engine compressor disc was over processed in alkaline chemical and may have destroyed the disc. Technician did not fill out required tank log.
| Attributes | |
| ACN | 587990 |
| Time | |
| Date | 200305 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 587990 |
| 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 |
| Independent Detector | other other : person 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : repair performance deficiency : training performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication Environmental Factor |
| Primary Problem | Maintenance Human Performance |
Narrative:
The DISCX281 was rejected back to company central cleaning by a non destructive testing inspector. When part returned to non destructive testing, part was damaged. Supervisor in his investigation was advised by employee X, that he processed part in tank #15 for 15-20 mins. Engineering and non destructive testing inspector and supervisor believe part was over processed in alkaline chemical. Company waiting ge report on part.
Original NASA ASRS Text
Title: A GE CF6-80C2 ENG COMPRESSOR DISC WAS OVER PROCESSED IN ALKALINE CHEMICAL AND MAY HAVE DESTROYED THE DISC. TECHNICIAN DID NOT FILL OUT REQUIRED TANK LOG.
Narrative: THE DISCX281 WAS REJECTED BACK TO COMPANY CENTRAL CLEANING BY A NON DESTRUCTIVE TESTING INSPECTOR. WHEN PART RETURNED TO NON DESTRUCTIVE TESTING, PART WAS DAMAGED. SUPVR IN HIS INVESTIGATION WAS ADVISED BY EMPLOYEE X, THAT HE PROCESSED PART IN TANK #15 FOR 15-20 MINS. ENGINEERING AND NON DESTRUCTIVE TESTING INSPECTOR AND SUPVR BELIEVE PART WAS OVER PROCESSED IN ALKALINE CHEMICAL. COMPANY WAITING GE RPT ON PART.
Data retrieved from NASA's ASRS site as of July 2007 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.