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An embraer emb maintenance technician reported that a speed brake panel was damaged when they turned on hydraulic power.
| Attributes | |
| ACN | 1517365 |
| Time | |
| Date | 201802 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 145 ER/LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | None |
| Component | |
| Aircraft Component | Speedbrake/Spoiler |
| Person 1 | |
| Function | Technician |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy |
Narrative:
We are three technicians working on a plane. One mechanic is working on the right hand (right/H) trust reverser of the aircraft. I and other mechanic were working on wings changing of the proximity connector from aluminum to stainless steel of both wings spoilers. The other mechanic that was working on the trust reverser right/H side came to me that he needs help to [do] the operational check of the trust reverser. I was working on the left hand (left/H) side and the other mechanic was working on the right/H side. I asked him is everything clear to [do] the operational check for the trust reverser on right/H side and told me yes. My left/H was cleared because I was working on the left/H side of the wing.I went to the cockpit to operate the trust reverser for the operational check. I turned on the hydraulic system; shouted stop; and turned off the hydraulic system. Then we discovered that the other mechanic working on the right/H side put the tire chock between the speed brake and flap. When the hydraulic system was turned on; the speed brake closed with tire chock and it has a composite damage on speed brake. Suggestions: log and tag safety procedure.
Original NASA ASRS Text
Title: An Embraer EMB Maintenance Technician reported that a speed brake panel was damaged when they turned on hydraulic power.
Narrative: We are three technicians working on a plane. One mechanic is working on the right hand (R/H) Trust Reverser of the aircraft. I and other mechanic were working on wings changing of the proximity connector from Aluminum to Stainless steel of both wings spoilers. The other mechanic that was working on the Trust Reverser R/H side came to me that he needs help to [do] the operational check of the Trust Reverser. I was working on the left hand (L/H) side and the other mechanic was working on the R/H side. I asked him is everything clear to [do] the operational check for the Trust Reverser on R/H side and told me yes. My L/H was cleared because I was working on the L/H side of the wing.I went to the cockpit to operate the Trust Reverser for the operational check. I turned on the hydraulic system; shouted stop; and turned off the hydraulic system. Then we discovered that the other mechanic working on the R/H side put the tire chock between the speed brake and flap. When the hydraulic system was turned on; the speed brake closed with tire chock and it has a composite damage on speed brake. Suggestions: log and tag safety procedure.
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.