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An Advanced Approach to Fitness-For-Service (FFS) and Corrosion ...

An Advanced Approach to Fitness-For-Service (FFS) and Corrosion ...

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Further Investigations<br />

• 1 feature at 37226.75 ft reported as repaired but not present in<br />

2006 inspection<br />

– Confirm that feature has been repaired<br />

• 1 feature showing evidence of new growth at 45578.69 ft, above<br />

statistical limit<br />

Distance<br />

(ft)<br />

– Confirm origin <strong>and</strong> take steps <strong>to</strong> remove threat as appropriate<br />

37226.75 MELO-<br />

CORR<br />

45578.69 MELO-<br />

CORR<br />

Type O’clock<br />

Position<br />

Length<br />

(in)<br />

Width<br />

(in)<br />

Depth<br />

(% wt)<br />

<strong>Corrosion</strong><br />

Growth Rate<br />

(mils/yr)<br />

04:31 1.535 1.654 64 40<br />

09:25 0.591 0.63 32 20

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