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During routine maintenance on a B757-200 during a 'C' check; an aircraft inspector discovered the door torque tube upper and center bearings badly corroded. The center bearing was completely destroyed at door 4R.
| Attributes | |
| ACN | 847891 |
| Time | |
| Date | 200908 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Component | |
| Aircraft Component | Exterior Pax/Crew Door |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
A B757-200 aircraft was here for a 'C' check. During routine maintenance the aircraft inspector discovered the upper and center; door torque tube bearings; badly corroded with the center bearing completely destroyed. The corrosion on the bearings would suggest excessive moisture inside door.
Original NASA ASRS Text
Title: During routine maintenance on a B757-200 during a 'C' Check; an Aircraft Inspector discovered the door torque tube upper and center bearings badly corroded. The center bearing was completely destroyed at door 4R.
Narrative: A B757-200 aircraft was here for a 'C' Check. During routine maintenance the Aircraft Inspector discovered the upper and center; door torque tube bearings; badly corroded with the center bearing completely destroyed. The corrosion on the bearings would suggest excessive moisture inside door.
Data retrieved from NASA's ASRS site as of April 2012 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.