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An air carrier engine shop mechanic questions an in-house blend repair on a pw-2000 engine 7th stage compressor blade that was found damaged; bent on the knife edge of the blade. Per their air carrier engine inspection paperwork; the blade could only be repaired by an outside vendor (osv).
| Attributes | |
| ACN | 1016461 |
| Time | |
| Date | 201206 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | No Aircraft |
| Component | |
| Aircraft Component | Compressor Blade |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
A non-routine [write-up] was made for a 7th stage blade that was damaged; bent on the knife edge. The engineer was shown the defect and told us they would make a determination on the status of the blade the next day. Per the engine inspection paperwork [reference pw manual] 72-53-42; the blade could only be repaired by the outside vendor (osv) per 72-53-42. When swingshift came in; they discussed the situation and an inspector did a blend repair per the general notes (gn) 1-0-1-85. Nothing in the engine inspection paperwork gives us authority to repair the 7th stage blade. The blade was blended and if you look at the blade; it still is bent slightly. I thought we are supposed to follow procedure on the engine inspection paperwork.
Original NASA ASRS Text
Title: An Air Carrier Engine Shop Mechanic questions an in-house blend repair on a PW-2000 Engine 7th Stage Compressor blade that was found damaged; bent on the knife edge of the blade. Per their Air Carrier Engine Inspection paperwork; the blade could only be repaired by an Outside Vendor (OSV).
Narrative: A Non-Routine [write-up] was made for a 7th Stage blade that was damaged; bent on the knife edge. The Engineer was shown the defect and told us they would make a determination on the status of the blade the next day. Per the Engine Inspection paperwork [reference PW Manual] 72-53-42; the blade could only be repaired by the Outside Vendor (OSV) PER 72-53-42. When Swingshift came in; they discussed the situation and an Inspector did a blend repair per the General Notes (GN) 1-0-1-85. Nothing in the Engine Inspection paperwork gives us authority to repair the 7th Stage blade. The blade was blended and if you look at the blade; it still is bent slightly. I thought we are supposed to follow procedure on the Engine Inspection paperwork.
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.