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An MD80 APU pneumatic load control valve was replaced by the reporter. Reporter not certain load control gasket was replaced.
| Attributes | |
| ACN | 663992 |
| Time | |
| Date | 200507 |
| 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-80 Series (DC-9-80) 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 | 663992 |
| 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 : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : installation performance deficiency : logbook entry performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Environmental Factor Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Installed new APU load control valve due to placarded load control valve. Upon installation of load control valve; ran APU; checked for air leaks (no leaks noted). After installation of load control valve; continued with helping with brake changes; after which time we all cleaned up and no one remembers discarding load control valve gasket. However; I do not remember installing load control valve gasket as I was thinking about the installation the following morning after flight had departed. WX was hot; aircraft required ps inspection; 2 brake changes and load control valve replacement. I was tired and am unsure if I installed gasket at top of load control valve mating surfaces.
Original NASA ASRS Text
Title: AN MD80 APU PNEUMATIC LOAD CTL VALVE WAS REPLACED BY THE RPTR. RPTR NOT CERTAIN LOAD CTL GASKET WAS REPLACED.
Narrative: INSTALLED NEW APU LOAD CTL VALVE DUE TO PLACARDED LOAD CTL VALVE. UPON INSTALLATION OF LOAD CTL VALVE; RAN APU; CHKED FOR AIR LEAKS (NO LEAKS NOTED). AFTER INSTALLATION OF LOAD CTL VALVE; CONTINUED WITH HELPING WITH BRAKE CHANGES; AFTER WHICH TIME WE ALL CLEANED UP AND NO ONE REMEMBERS DISCARDING LOAD CTL VALVE GASKET. HOWEVER; I DO NOT REMEMBER INSTALLING LOAD CTL VALVE GASKET AS I WAS THINKING ABOUT THE INSTALLATION THE FOLLOWING MORNING AFTER FLT HAD DEPARTED. WX WAS HOT; ACFT REQUIRED PS INSPECTION; 2 BRAKE CHANGES AND LOAD CTL VALVE REPLACEMENT. I WAS TIRED AND AM UNSURE IF I INSTALLED GASKET AT TOP OF LOAD CTL VALVE MATING SURFACES.
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.