• Published: 25 Jan 2013
  • Incident ID: 3455

Emergency Lighting - Backup Battery Fall

Cause & Consequence

  • Moving, flying or falling object
Incident Consequence

Incident Location

Drilling unit

Incident Activity

Drilling, workover

Incident Info Source


Specific Incident Equipment

The battery housing was cracked at the mounts. Although the exact failure mode has yet to be determined, it is recognised that the failure could have been a result of over tightening of the battery retaining bolts or vibration causing the housing to crack at the mounts. Following further inspection of additional lighting of the same type, other batteries have been discovered

Incident Recommendations

Actions are taken as follows:

  1. Inspect all lights of this and similar design type and ensure battery is securely fitted with no damage to the mounting fittings.
  2. Where there is a battery housing fault found or any uncertainty then to PREVENT the potential of this item becoming a dropped object either:
    • The fitting is to be replaced or
    • As a temporary control additional secondary retention, for example, some form of strapping of the battery to the light fitting
  3. Have a plan in place to repair/replace all damaged light fittings, of this and similar design type, identified during this process.
  4. Review Dropped Objects Inspection Book from subcontractor survey for methods of secondary retention in use and:
    • Determine if more effective controls for this type of equipment should be used
    • Where more effective controls are required plan to fit these.

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