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Maintenance person reported that when a lift was used to open the engine cowling it surged up and damaged the lower aft cowling.
| Attributes | |
| ACN | 1527413 |
| Time | |
| Date | 201803 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Cowling |
| Person 1 | |
| Function | Other / Unknown |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Object |
Narrative:
Maintenance accomplished on number 1 engine. Positioned engine stand to open cowling. While extending lift upward; stand stalled then surged up. Extended too far striking lower aft cowling [and] cracking a hole.found afterwards that with air compressor on [and] with lift operations in motion; engine [will] stall then surges.[add an] interlock to the stand [where] you can only operate [the] air or lift controls.
Original NASA ASRS Text
Title: Maintenance person reported that when a lift was used to open the engine cowling it surged up and damaged the lower aft cowling.
Narrative: Maintenance accomplished on number 1 engine. Positioned engine stand to open cowling. While extending lift upward; stand stalled then surged up. Extended too far striking lower aft cowling [and] cracking a hole.Found afterwards that with air compressor on [and] with lift operations in motion; engine [will] stall then surges.[Add an] interlock to the stand [where] you can only operate [the] air or lift controls.
Data retrieved from NASA's ASRS site 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.