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A DC9-80 incurred damage to the aircraft structure when the horizontal stabilizer trim was operated with the tooling fixture installed.
| Attributes | |
| ACN | 637855 |
| Time | |
| Date | 200411 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| 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 |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 19 |
| ASRS Report | 637855 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 15 |
| ASRS Report | 637854 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : company policies non adherence : far non adherence : published procedure |
| Independent Detector | other other : 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : briefing contributing factor : work cards performance deficiency : testing performance deficiency : scheduled maintenance performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
Being asked to run the horizontal stabilizer by the yoke pickle switches up to the automatic stop, wait a bit, then run it to the down automatic stop. (Tooling fixture was in place on stabilizer and resulted in damage to aircraft structure when stabilizer was moved.) contributing factors: 1) work cards: too much/conflicting information. 2) communication: between technicians.
Original NASA ASRS Text
Title: A DC9-80 INCURRED DAMAGE TO THE ACFT STRUCTURE WHEN THE HORIZ STABILIZER TRIM WAS OPERATED WITH THE TOOLING FIXTURE INSTALLED.
Narrative: BEING ASKED TO RUN THE HORIZ STABILIZER BY THE YOKE PICKLE SWITCHES UP TO THE AUTO STOP, WAIT A BIT, THEN RUN IT TO THE DOWN AUTO STOP. (TOOLING FIXTURE WAS IN PLACE ON STABILIZER AND RESULTED IN DAMAGE TO ACFT STRUCTURE WHEN STABILIZER WAS MOVED.) CONTRIBUTING FACTORS: 1) WORK CARDS: TOO MUCH/CONFLICTING INFO. 2) COM: BTWN TECHNICIANS.
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.