Services

Quaternary Annulus Inspection & Cleaning

Before

Before

After

After

IAW TIL 1724, Advanced Turbine Support will inspect the forward combustion casings quaternary annulus and associated fuel pegs for the presence oxidized scale. If significant scale is observed, a thorough dry cleaning, UT wall thickness readings and post cleaning inspection will be performed. The inspection and cleaning can be performed with the combustion cans removed or installed on the unit. Typical inspection and cleaning times can be completed within one shift.

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