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A DC9 was repaired with a manufactured spar pylon strap assembly which was not heat treated after fabrication per the engineering drawing.
| Attributes | |
| ACN | 457882 |
| Time | |
| Date | 199912 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : mco.tower |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 25 |
| ASRS Report | 457882 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Qualification | technician : airframe technician : powerplant |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : published procedure |
| Resolutory Action | none taken : unable |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : repair performance deficiency : testing performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was given the job to manufacture the pylon spar strap. Notes on the blueprint say to heat treat. However, on the furnished material, it was stamped heat treated. Company stock number indicates that this material is already heat treated.
Original NASA ASRS Text
Title: A DC9 WAS REPAIRED WITH A MANUFACTURED SPAR PYLON STRAP ASSEMBLY WHICH WAS NOT HEAT TREATED AFTER FABRICATION PER THE ENGINEERING DRAWING.
Narrative: I WAS GIVEN THE JOB TO MANUFACTURE THE PYLON SPAR STRAP. NOTES ON THE BLUEPRINT SAY TO HEAT TREAT. HOWEVER, ON THE FURNISHED MATERIAL, IT WAS STAMPED HEAT TREATED. COMPANY STOCK NUMBER INDICATES THAT THIS MATERIAL IS ALREADY HEAT TREATED.
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.