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A commercial fixed wing aircraft shut down an engine due to the tower shaft gear box failure caused by a shop towel left in the gear box.
| Attributes | |
| ACN | 414125 |
| Time | |
| Date | 199809 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | FO |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 414125 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
On sep/xa/98 I received notification that a module (O-6) that I worked on in mar/98 was involved in an in-flight shutdown. After module disassembly on sep/xb/98, debris from a shop paper towel was found inside. I have no idea how the shop towel ended up on the inside of this module. The towel was located under the bevel gear housing in the tower of the rear case.
Original NASA ASRS Text
Title: A COMMERCIAL FIXED WING ACFT SHUT DOWN AN ENG DUE TO THE TWR SHAFT GEAR BOX FAILURE CAUSED BY A SHOP TOWEL LEFT IN THE GEAR BOX.
Narrative: ON SEP/XA/98 I RECEIVED NOTIFICATION THAT A MODULE (O-6) THAT I WORKED ON IN MAR/98 WAS INVOLVED IN AN INFLT SHUTDOWN. AFTER MODULE DISASSEMBLY ON SEP/XB/98, DEBRIS FROM A SHOP PAPER TOWEL WAS FOUND INSIDE. I HAVE NO IDEA HOW THE SHOP TOWEL ENDED UP ON THE INSIDE OF THIS MODULE. THE TOWEL WAS LOCATED UNDER THE BEVEL GEAR HOUSING IN THE TWR OF THE REAR CASE.
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.