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Attachment 1: List of Crane Incidents

Crane Incidents from 1995 to August 1998

Brief Description

Date

Injuries and Fatalities

Damage

Report Prepared

Listed Cause

Fast line parted while unloading drillpipe 7/20/98 None Minor damage to supply boat

No

EF

Individual fell to deck after tagline wrapped around leg as load lifted 6/20/98 Minor injury to rigger None

No

S/T/F

Crane power-pack overturned during rigging down activity 6/2/98 1 fatality and 3 serious injuries **

Yes

**

Boom damaged when operator pulled wrong lever 5/28/98 None Minor damage to boom

Yes

HE

Platform crane failed while offloading a rental crane 5/10/98 2 fatalities of riggers **

Yes

EF

**

Oil storage tank on supply boat toppled during the lifting of load 4/26/98 None 400 gallons of motor oil spilled

Yes

EF/

HE

Boom damage when it was raised into boom stops 4/3/98 None Major damage to boom

Yes

EF/

HE

Wire rope on BOP hoist broke 2/6/98 1 fatality of rigger Broken wire rope

Yes

EF

Boom broke into 3 pieces when hoist components failed 1/15/98 None Major damage to boom

Yes

EF

Employee pinned by personnel basket 10/26/97 1 minor injury None

No

HE

Crane pedestal broke during lift 9/25/97 Crane operator suffered broken bones and cuts crane and workboat damaged

Yes

EF

Load fell to deck when sling failed 9/17/97 1 fatality of rigger Unknown

Yes

EF

Crane boom failed while offloading workover rig 7/30/97 None Crane and platform damaged

Yes

EF

Boom pawl brake failed after boom went into free fall while making lift 4/23/97 None Severe damage to boom

Yes

EF

Crane pedestal failed while trying to lift immovable object 4/3/97 Minor injury to operator Major damage to crane

Yes

EF

Employee injured while offloading fluid tank from vessel 1/30/97 Minor injury to rigger None

No

HE

Box of cuttings overturned while being offloaded onto vessel 1/24/97 None Cuttings spilled

No

***

Sling snagged accumulator valve and blew worker across drill floor 1/18/97 1 fatality of rigger Minor

Yes

HE/

S/T/F

Wire sling broke while offloading filter unit 1/5/97 None Minor filter and vessel damage

Yes

HE/

EF

Slings slipped while making deck lift 12/6/96 5 riggers injured Unknown

No

S/T/F

Worker fell out of personnel basket when it caught on air conditioning unit 10/24/96 1 injury None

No

S/T/F/BW

Worker injured while exiting personnel basket 10/5/96 Broken leg None

No

S/T/F/BW

Wire cable broke causing the counter-balance assembly to strike worker 9/17/96 Serious injury to rigger Minor damage to crane equipment

Yes

EF

New crane operator dropped mud logging lab 8/6/96 None Minor damage to lab

No

HE

Fast line ball struck wind wall while moving valve 7/29/96 Rigger suffered broken leg Minor

Yes

HE

Turntable bearing case broke, allowing the boom to fall 7/19/96 None Major damage to the crane

Yes

EF

Helicopter tail rotor struck crane that was not parked in the proper location 7/7/96 None Minor damage to tail rotor

Yes

HE

Tank being offloaded discharged diesel when discharge valve caught on handrail 6/17/96 None Small diesel spill

No

HE

Worker departing personnel basket injured when crane line slipped 1/2/96 Broken leg None

No

EF

Worked killed while being lowered to detach mooring lines 6/16/95 1 fatality of rigger None

Yes

EF

Ruptured diesel tank while offloading snubbing unit 4/21/95 None 12 bbl diesel spill and damage to tank

Yes

BW

Worker caught finger between sling shackle and pad eye 3/28/95 Rigger lost part of finger None

No

HE

Worker’s finger pinched while aligning motor and skid 2/25/95 Minor injury to rigger None

No

Other

Load shifted and sling detached from crane hook 1/28/95 None Minor damage to load

No

EF

34 Total Crane Incidents From January 1995 To August 1998

Key for Listed Causes of Incidents
EF - Equipment failure
S/T/F - Slip/trip/fall
** - Incident still under investigation
HE - Human Error
*** - Overboard drilling fluids
BW - Bad weather

Table of Contents

Last Updated: 10/27/2010, 12:36 PM Central Time