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A B737-700 incurred upper fuselage skin damage due to improper rivet installation caused by lack of communication and skill.
| Attributes | |
| ACN | 556650 |
| Time | |
| Date | 200208 |
| Day | Thu |
| 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 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| 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 | 556650 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 556651 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : person 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | performance deficiency : unqualified personnel performance deficiency : training performance deficiency : installation performance deficiency : inspection performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X was worked for ACARS modification using aircraft change order paperwork. In the process of installing the 2 antenna doublers for the antenna I was working the rivet gun on top of the aircraft fuselage skin. A technician was inside the cabin bucking the rivets. The rivet buck tails were bucked too flat. This caused the aircraft skin to couple and create damage. As the installation was completed on my shift, the shift inspector called the work ok. At about XA00 I installed the cover plates and sealed the edges. At shift change time, the other technician made turnover and left. I finished seams and clean-up and completed mechanic paperwork. Next shift inspection looked at doubler installation and called the doublers no good. A sheet metal repair was made, and was classed as aircraft damage due to doubler installation.
Original NASA ASRS Text
Title: A B737-700 INCURRED UPPER FUSELAGE SKIN DAMAGE DUE TO IMPROPER RIVET INSTALLATION CAUSED BY LACK OF COM AND SKILL.
Narrative: ACFT X WAS WORKED FOR ACARS MODIFICATION USING ACFT CHANGE ORDER PAPERWORK. IN THE PROCESS OF INSTALLING THE 2 ANTENNA DOUBLERS FOR THE ANTENNA I WAS WORKING THE RIVET GUN ON TOP OF THE ACFT FUSELAGE SKIN. A TECHNICIAN WAS INSIDE THE CABIN BUCKING THE RIVETS. THE RIVET BUCK TAILS WERE BUCKED TOO FLAT. THIS CAUSED THE ACFT SKIN TO COUPLE AND CREATE DAMAGE. AS THE INSTALLATION WAS COMPLETED ON MY SHIFT, THE SHIFT INSPECTOR CALLED THE WORK OK. AT ABOUT XA00 I INSTALLED THE COVER PLATES AND SEALED THE EDGES. AT SHIFT CHANGE TIME, THE OTHER TECHNICIAN MADE TURNOVER AND LEFT. I FINISHED SEAMS AND CLEAN-UP AND COMPLETED MECH PAPERWORK. NEXT SHIFT INSPECTION LOOKED AT DOUBLER INSTALLATION AND CALLED THE DOUBLERS NO GOOD. A SHEET METAL REPAIR WAS MADE, AND WAS CLASSED AS ACFT DAMAGE DUE TO DOUBLER INSTALLATION.
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.