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Two aircraft maintenance technicians (amts) report about extensive damage that occurred to the right engine of a crj-700 aircraft during full power engine runs; after a fan blade pin change had been accomplished on their ge CF34-8C engine. One of the technician's later realizes a ratchet used to perform the pin change was missing.
| Attributes | |
| ACN | 1118766 |
| Time | |
| Date | 201309 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Other During Maintenance |
| Component | |
| Aircraft Component | Fan Blade |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Person 2 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
After a [ge CF34-8c engine] fan pin change; the crj-700 [aircraft] was pulled from hangar for engine runs. After the required idle time [run]; the throttle was advanced and that's when the vibration indicator went to 1.2; the damage was done. It occurred about xa:30AM; september 2013. I was left (lt) seat; mechanic Y was right (rt) seat. Procedure was not followed. [Recommend] making it a quality control (qc) inspection 'buy back' for tool removal on work card. Graveyard.
Original NASA ASRS Text
Title: Two Aircraft Maintenance Technicians (AMTs) report about extensive damage that occurred to the Right Engine of a CRJ-700 aircraft during full power engine runs; after a Fan Blade Pin change had been accomplished on their GE CF34-8C engine. One of the Technician's later realizes a ratchet used to perform the pin change was missing.
Narrative: After a [GE CF34-8c engine] Fan Pin change; the CRJ-700 [aircraft] was pulled from hangar for engine runs. After the required idle time [run]; the throttle was advanced and that's when the vibration indicator went to 1.2; the damage was done. It occurred about XA:30AM; September 2013. I was Left (LT) seat; Mechanic Y was Right (RT) seat. Procedure was not followed. [Recommend] making it a Quality Control (QC) Inspection 'Buy Back' for tool removal on Work Card. Graveyard.
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.