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A commercial fixed wing aircraft reported leading edge devices jerky. Ratcheting and hanging up due to lack of lubrication.
| Attributes | |
| ACN | 471264 |
| Time | |
| Date | 200004 |
| Day | Sun |
| 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 | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 471264 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
| Situations | |
| Publication | Maint Manual |
Narrative:
I have lubricated #4, #5, and #6 slats per maintenance manual for a 'C' check. 4 months later they found a #6 slat hanging up and #4, and #5 slats were jerky and ratcheting when extended. The fix for the problem was to lubricate the slats per the maintenance manual.
Original NASA ASRS Text
Title: A COMMERCIAL FIXED WING ACFT RPTED LEADING EDGE DEVICES JERKY. RATCHETING AND HANGING UP DUE TO LACK OF LUBRICATION.
Narrative: I HAVE LUBRICATED #4, #5, AND #6 SLATS PER MAINT MANUAL FOR A 'C' CHK. 4 MONTHS LATER THEY FOUND A #6 SLAT HANGING UP AND #4, AND #5 SLATS WERE JERKY AND RATCHETING WHEN EXTENDED. THE FIX FOR THE PROB WAS TO LUBRICATE THE SLATS PER THE MAINT MANUAL.
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.