0027/nd guidelines for Marine Lifting and Lowering Operations

GUIDELINES
 
FOR
 
MARINE
 
LIFTING
 
&
 
LOWERING
 
OPERATIONS 
0027/ND Rev 11 
 
Page 54 of 84 
15.2.16 
For heavy duty slings and grommets (typically with MBL greater than 500t) a data/log book should be 
maintained and should contain, as a minimum, the following 

all relevant certificates, 

survey reports, 

handling and storage/conservation procedure, 

storage history. 
For cable laid slings and grommets, the following additional information should also be included in the 
data/log book for each cable laid sling and grommet: 

records of previous lifts, 

lift weights and expected loading in each sling / grommet,

minimum bend radius. 
15.3 
CERTIFICATION AND INSPECTION OF SHACKLES 
15.3.1 
All shackles shall be in good condition and thoroughly inspected before each lift or series of lifts.
Special attention should be given to ensure there are no deformations, cracks or other defects and that 
there are no indications of abnormal loading. 
15.3.2 
When shackles are used on a regular basis, a visual inspection shall be carried out by a Competent 
Person before any lift when the utilisation of the shackle will be more than 80% of the WLL. 
15.3.3 
For shackles used for offshore and inshore lifting, a valid certificate issued by a Competent Person is 
to be provided showing that the shackle has been inspected within the past 6 months. The exception 
to this are shackles used for general deck activities on the crane vessel for which the onshore 
requirements are applicable provided there are no over the side lifts in which case the offshore 
requirements still apply.
15.3.4 
For shackles used for onshore lifting, a valid certificate issued by a Competent Person is to be 
provided showing that the shackle has been inspected within the past 12 months. The exceptions to 
this are shackles used for the load-out operations to/from a vessel of structures and any essential 
equipment required for its subsequent installation, for which the offshore requirements are applicable.
15.3.5 
All shackles shall be inspected every 2 years with MPI and UT to confirm there are no defects. 
15.3.6 
A manufacturer’s certificate and proof load certificate signed by a recognised Certifying Body should 
be provided for each shackle.
15.3.7 
For shackles used for offshore and inshore lifting, the inspection and NDT report signed by a 
recognised Certifying Body should be valid for 2 years. The exception to this are shackles used for 
general deck activities on the crane vessel for which the onshore requirements are applicable provided 
there are no over the side lifts in which case the offshore requirements still apply.
15.3.8 
For shackles used for onshore lifting, the inspection and NDT report signed by a recognised Certifying 
Body should be valid for 4 years. The exceptions to this are shackles used for the load-out operations 
to/from a vessel of structures and any essential equipment required for its subsequent installation, for 
which the offshore requirements are applicable.
15.3.9 
For shackles required to be wet stored for an extended period prior to use (e.g. for the recovery of a 
subsea asset), if the storage period is anticipated beyond the inspection interval, the means for 
satisfying any formal or regular inspection requirements should be agreed. The fabrication 
requirements for wet stored shackles are referenced in Section 14.4.4. 
15.3.10 
Each shackle should be clearly identified with reference to the corresponding certificate. The safe 
working load as specified in the certificate should be clearly marked on the shackle. 
15.3.11 
A shackle certificate should normally contain the following minimum information: 

Certificate identification code 

Shackle identification code 

MBL 

Proof load 

Safe working load
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