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A mechanic working an A320 a-check in a hangar; reports about a fourth and fifth hydraulic system accumulator from a contract repair station vendor that will not hold nitrogen at all on the air side of the accumulator diaphragm; air just blows through to the hydraulic side of both accumulators.
| Attributes | |
| ACN | 936143 |
| Time | |
| Date | 201103 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Hydraulic Main System - Regulator |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural FAR Deviation - Procedural Published Material / Policy Deviation - Procedural Maintenance |
Narrative:
This is the fourth and fifth [hydraulic] accumulator in ZZZ from [contract repair] vendor in the last two weeks. Both [accumulators] will not hold nitrogen at all on air side; just blows through [diaphragm] to hydraulic side of accumulator. Both accumulators came from the [same vendor repair] shop again; and were put on the refused list. Something needs to get done soon because this is making our job very difficult to do when parts need to be tested before being installed on aircraft.
Original NASA ASRS Text
Title: A Mechanic working an A320 A-Check in a hangar; reports about a fourth and fifth Hydraulic System Accumulator from a Contract Repair Station Vendor that will not hold nitrogen at all on the air side of the accumulator diaphragm; air just blows through to the hydraulic side of both accumulators.
Narrative: This is the fourth and fifth [Hydraulic] Accumulator in ZZZ from [Contract Repair] Vendor in the last two weeks. Both [accumulators] will not hold nitrogen at all on air side; just blows through [diaphragm] to hydraulic side of accumulator. Both accumulators came from the [same Vendor Repair] Shop again; and were put on the refused list. Something needs to get done soon because this is making our job very difficult to do when parts need to be tested before being installed on aircraft.
Data retrieved from NASA's ASRS site as of April 2012 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.