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A line mechanic reports finding a bent inlet fan blade tip on number 2 engine during a snow inspection of an md-11 aircraft in 15 degrees fahrenheit temperatures. After blending out the blade tip damage; maintenance control deferred the fan blade eddy current inspection; aircraft later experienced number 2 engine vibrations.
| Attributes | |
| ACN | 1058888 |
| Time | |
| Date | 201212 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Component | |
| Aircraft Component | Fan Blade |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Experience | Maintenance Technician 34 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Inflight Event / Encounter Other / Unknown |
Narrative:
Company policy requires an inspection inside the number 2 engine inlet after snowfall. During my inspection of number 2 engine inlet for snow; I discovered a bent tip on one fan blade. I contacted company maintenance control; took a picture of the bent blade tip and electronically sent it to maintenance control. Then; I repaired / blended the fan tip blade per company maintenance manual. I took a picture of the fan blade after completing the repair and electronically sent it to maintenance control. I accomplished this repair at night with the use of a hand-held flashlight; and the weather was very cold; approximately 15-degrees fahrenheit. An eddy current inspection of the fan blade was deferred; through maintenance control; because the ZZZ maintenance facility does not have a qualified inspector / technician.
Original NASA ASRS Text
Title: A Line Mechanic reports finding a bent inlet fan blade tip on Number 2 Engine during a Snow Inspection of an MD-11 aircraft in 15 degrees Fahrenheit temperatures. After blending out the blade tip damage; Maintenance Control deferred the fan blade Eddy Current Inspection; aircraft later experienced Number 2 Engine vibrations.
Narrative: Company Policy requires an Inspection inside the Number 2 Engine Inlet after snowfall. During my inspection of Number 2 Engine inlet for snow; I discovered a bent tip on one fan blade. I contacted Company Maintenance Control; took a picture of the bent blade tip and electronically sent it to Maintenance Control. Then; I repaired / blended the fan tip blade per Company Maintenance Manual. I took a picture of the fan blade after completing the repair and electronically sent it to Maintenance Control. I accomplished this repair at night with the use of a hand-held flashlight; and the weather was very cold; approximately 15-degrees Fahrenheit. An Eddy Current Inspection of the fan blade was deferred; through Maintenance Control; because the ZZZ Maintenance Facility does not have a qualified Inspector / Technician.
Data retrieved from NASA's ASRS site as of July 2013 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.