Service Instruction No. 1504
Cylinder Assembly Replacement on O-235 Engines Operated Under DGAC Authority
DATE: January 26, 2001
MODELS AFFECTED
O-235 aircraft engines operated under the authority of the French Direction Generale De L’Aviation Civile (DGAC.)
TIME OF COMPLIANCE
At owner’s discretion.
The French DGAC has reported a significant number of O-235 cylinder barrel failures in France. These failures have initiated from corrosion pits at the base area of the cylinder.
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