While the upper cowling is off for other task, I decided to inspect the oil cooler area for sign of cracks. I did find cracks, but not at the common locations reported in the forum. You can see the cracks in the picture below. For now, I just stop drilled the crack, hope it will stop right there. Has anyone seen cracks in this odd location? I don't quite understand why crack there, since the fwd flange is not connected to anything rigid, just the baffle seal material. My RV-7 got about 70 hrs on it.
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