MAIN PASS 252A CRANE INCIDENT

1
MAIN PASS 252A CRANE INCIDENT

• September 9th, 2007

2
Leading up to the Incident

• Construction crew was on site preparing for
  planned shut in of facility.
• Operations asked to borrow constructions Shell
  approved crane operator.
• Job was permitted and JSEA was attached.
• Operations personnel and the crane operator
  reviewed the JSEA prior to beginning work.

3
The Tasks

• Pull the tubing bundle from the
• WHRU Heat Exchanger
• Inspect
• Reinstall

4
WHRU HEAT EXCHANGERLocated on Deck 1 Blind
lift for Crane Operator35 below crane cab
elevation
WHRU Heat Exchanger End of
exchanger where bundle was pulled.
5
Crane Position
Crane was boomed down at this Radius in order to
reach WHRU Tubing Bundle.
6
Close Up View of Cooler
Line depicts boom position as in Previous slide.
7
Overview of Facts

• Crane was positioned by radio directions from
  personnel at WHRU exchanger. (unable to see boom)
• Crane operator had very limited view of boom at
  coolers.
• Bundle was guided out and load was taken by
  crane.
• Bundle was inspected and reinstalled.
• Upon laying boom back in the rest crane operator
  immediately noticed bent section and reported it
  to the facility PIC.

8
Incident Investigation

• Permit and JSEA written and approved for job,
  JSEA should have been more detailed for crane
  operations.
• Hazard of cooler proximity to boom has existed
  since the C-900 Compressor Package was installed
  and never properly addressed.
• Additional personnel should have been assigned to
  the task during crane operations.

9
Damage to Boom
10
Safety Measures Enacted as a result of this
Incident

• Spotter to be positioned below coolers with radio
  communication when accessing South West side of
  Deck 1 or heliport.
• JSEAs will include detailed steps when crane
  lifts are made in close proximity to Living
  Quarters and Compressor Coolers.

• Shell Crane Group and Civil to investigate the
  option of relocating the crane for safer
  operations.
• Looking at additional physical barriers that can
  be installed at coolers and or boom for further
  protection.