Difference between revisions of "Incidents 2021"

From my_wiki
Jump to: navigation, search
(Created page with "{| class="wikitable" border=1 cellpadding="5" cellspacing="0" |- style="background:#efefef;" ! style="width: 100px;" | Date !! style="width: 210px;" | What happened? !! style...")
 
 
(One intermediate revision by one other user not shown)
Line 4: Line 4:
  
 
|- valign="top"
 
|- valign="top"
−
| 2020-10-19 ||  Camera front scaffolding loosened in the morning on 19 October as seen on internal webcams. [http://www.lst1.iac.es/elog/LST+commissioning/1167 ELOG Entry] || Park and secure scaffolding || Shunsuke S., Enrique G., and Stefan C. decided to go to the site together for safety. Took additional ropes and straps. Before going up the camera access tower, they performed an inspection of the scaffolding from the ground. It looked that a rope is still connecting the fence and the scaffolding. On the tower, they performed quick inspection before starting the fix. The west scaffolding moved to the camera direction, but it did not hit the camera. It was stopped by the newly installed foot barriers around the camera hole in the platform. The brake of the west scaffolding was not locked. And the ropes of west and east scaffoldings had been fixed to the horizontal rail, which allows horizontal movement of the scaffolding. So they put back the west scaffolding in where it should be and locked the brake. After that they fixed the west / east scaffolding by two ropes. It does not allow horizontal movement any more. The final design of the scaffolding foresees an additional brake using the locking and sensor mechanism on the side of the scaffolding on 20.10.20.  || [[File:Scaffolding.jpg|120px|thumb|left|Scaffolding moved towards camera, stopped by foot barrier.]] [[File:Brake west.jpg|120px|thumb|rigth|Opened brake on scaffolding.]] [[File:Ropes before and after.jpg|120px|thumb|right|Good and Bad example of tying rope, Attachment before the storm was only with one strap on horizontal bar. (the right side like in this picture).After incident, attachment with two straps, one from handrail and from vertical frame of the scaffolding both on a vertical struct of the fence of the camera tower.]] [[File:Fixed scaffolding.jpg|120px|thumb|center|Additional strap on the right side.]] || YES
+
| 2021-01-19 ||  Consequences of snow storm in the ORM (January 2021): 1. Cover of motors of ALSs are damaged; 2. Handrail of camera access tower is damaged; 3. A network cabinet is damaged; 4. A cable of ALS-West was removed; 5. Cover of cable trays were removed || Inspection and repair || An inspection has been done by LST team on 18.01.2021. Several tests were done. A final inspection is pending because there are a lot of ice in the site. 1. Pending / 2. Pending / 3. Pending / 4. Repaired / 5. Pending || [[File:IMG_20210118_111533.jpg|120px|thumb|left]] [[File:IMG_20210115_113018.jpg|120px|thumb|right]] [[File:IMG_20210118_112318.jpg|120px|thumb|left]] || NO

Latest revision as of 10:13, 22 January 2021

Date What happened? Corrective measures Comments Documents Incident Closed?
2021-01-19 Consequences of snow storm in the ORM (January 2021): 1. Cover of motors of ALSs are damaged; 2. Handrail of camera access tower is damaged; 3. A network cabinet is damaged; 4. A cable of ALS-West was removed; 5. Cover of cable trays were removed Inspection and repair An inspection has been done by LST team on 18.01.2021. Several tests were done. A final inspection is pending because there are a lot of ice in the site. 1. Pending / 2. Pending / 3. Pending / 4. Repaired / 5. Pending
IMG 20210118 111533.jpg
IMG 20210115 113018.jpg
IMG 20210118 112318.jpg
NO
Retrieved from "https://www.lst1.iac.es/wiki/index.php?title=Incidents_2021&oldid=3054"