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A B737-300 at trip termination of first flight out of maintenance a pylon panel was found missing. Caused by improperly secured panel.
| Attributes | |
| ACN | 559072 |
| Time | |
| Date | 200208 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 559072 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 559071 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : testing performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On the night of sep/tue/02, mr Y and I were assigned to work on aircraft, a pm check and troubleshooting an MEL item. I replaced the 490 degree switch, located under panel 5728L. I reinstalled the panel while mr Y closed the engine cowls. We took aircraft out for engine run and paperwork was filled out after we verified no further problems. When aircraft arrived ZZZ1, panel 5728L was missing.
Original NASA ASRS Text
Title: A B737-300 AT TRIP TERMINATION OF FIRST FLT OUT OF MAINT A PYLON PANEL WAS FOUND MISSING. CAUSED BY IMPROPERLY SECURED PANEL.
Narrative: ON THE NIGHT OF SEP/TUE/02, MR Y AND I WERE ASSIGNED TO WORK ON ACFT, A PM CHK AND TROUBLESHOOTING AN MEL ITEM. I REPLACED THE 490 DEG SWITCH, LOCATED UNDER PANEL 5728L. I REINSTALLED THE PANEL WHILE MR Y CLOSED THE ENG COWLS. WE TOOK ACFT OUT FOR ENG RUN AND PAPERWORK WAS FILLED OUT AFTER WE VERIFIED NO FURTHER PROBS. WHEN ACFT ARRIVED ZZZ1, PANEL 5728L WAS MISSING.
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.