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A shop technician reports B737-800 compressed reservoir air cylinders tested at incorrect pressure. New type reservoirs with different pressures.
| Attributes | |
| ACN | 724852 |
| Time | |
| Date | 200612 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 724852 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead 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 : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : testing performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
I mistakenly hydrostatic tested 7 reservoirs at the wrong pressure. Had crew meetings to make everyone more aware. Informed engineering to start recall reservoirs in question. This is new type reservoir with service pressure different from the normal.
Original NASA ASRS Text
Title: A SHOP TECHNICIAN RPTS B737-800 COMPRESSED RESERVOIR AIR CYLINDERS TESTED AT INCORRECT PRESSURE. NEW TYPE RESERVOIRS WITH DIFFERENT PRESSURES.
Narrative: I MISTAKENLY HYDROSTATIC TESTED 7 RESERVOIRS AT THE WRONG PRESSURE. HAD CREW MEETINGS TO MAKE EVERYONE MORE AWARE. INFORMED ENGINEERING TO START RECALL RESERVOIRS IN QUESTION. THIS IS NEW TYPE RESERVOIR WITH SVC PRESSURE DIFFERENT FROM THE NORMAL.
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.