Safety Alert
Block Hanging Line Load Path
Block Hanging Line Load Path
- IADC
- Safety Alert
- IADC Alert 00-37
- Crane and RiggingLifting OperationsLine of Fire
- Structural and asset integrity
- Inspection and maintenance
- Non-destructive testing
Read at IADCOpens the publisher’s page on iadc.org
Summary
An annual MPI inspection revealed overloading of the top clevis on a rig’s 500-ton travelling block. The rating plate specified a maximum hanging weight of 13 tons, whereas the combined block and top drive weighed 17.5 tons, exceeding that limit by 4.5 tons.
Classifications: Structural and asset integrity; asset integrity; structural integrity.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Non-destructive testing; NDT; non-destructive examination; NDE.
IADC Alert 00-37. Themes: crane and rigging, lifting operations, line of fire.