Safety Alert
Near Miss – Dropped Casing When Elevators Not Latched Correctly
Near Miss – Dropped Casing When Elevators Not Latched Correctly
- IADC
- Safety Alert
- IADC Alert 09-15
- Dropped ObjectsLifting Operations
- Dropped objectsHuman factors
- DrillingLifting operations
- Lifting accessories
- Positive retention and reliable securing
- Upstream oil and gas
Summary
A casing-running near miss involved partially latched single-joint casing elevators with a retaining pin inserted behind the latch. The elevators opened as the load was taken up, releasing the casing down the v-door and off the catwalk. Slight damage occurred to a wire line unit; the investigation found no elevator failure.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Human factors; human performance; ergonomics.
Classifications: Drilling; well drilling.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Positive retention and reliable securing.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Summary
The alert concerns a near miss in which casing was dropped after elevators were not correctly latched.
IADC Alert 09-15. Themes: dropped objects, lifting operations.