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An MD88 was dispatched in non compliance with a left pack pressure regulator valve replaced but duct clamp safety pins omitted.
| Attributes | |
| ACN | 601071 |
| Time | |
| Date | 200311 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance avionics : 20 maintenance lead technician : 3 maintenance technician : 26 |
| ASRS Report | 601071 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : person 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : installation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
The aircraft arrived with a write-up that the left pack would not shut off when selected off. It was determined that the air conditioning pack pressure regulator was not at fault. I replaced the pressure regulator valve and returned the aircraft to service. After aircraft departed I realized that I failed to install safety pins in valve clamps. I notified our maintenance control center and pins were installed at termination of flight.
Original NASA ASRS Text
Title: AN MD88 WAS DISPATCHED IN NON COMPLIANCE WITH A L PACK PRESSURE REGULATOR VALVE REPLACED BUT DUCT CLAMP SAFETY PINS OMITTED.
Narrative: THE ACFT ARRIVED WITH A WRITE-UP THAT THE L PACK WOULD NOT SHUT OFF WHEN SELECTED OFF. IT WAS DETERMINED THAT THE AIR CONDITIONING PACK PRESSURE REGULATOR WAS NOT AT FAULT. I REPLACED THE PRESSURE REGULATOR VALVE AND RETURNED THE ACFT TO SVC. AFTER ACFT DEPARTED I REALIZED THAT I FAILED TO INSTALL SAFETY PINS IN VALVE CLAMPS. I NOTIFIED OUR MAINT CTL CTR AND PINS WERE INSTALLED AT TERMINATION OF FLT.
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.