From Westys link
"Phil Rasmussen recalled, "At almost the same instant, I was hit by two 20mm explosive cannon; one, in the radio compartment behind my head, shattered the canopy above me. The other, in the tail section, severed my rudder cable and blew off my tailwheel. In addition, I was stitched with 7.7mm bullets. Having hardly any control over the aircraft and scared as hell, I popped into a cloud, struggled to stabilize the plane and headed for Wheeler."
very minor damage.
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At that moment, the third Soryu Shotai arrived. P02c Jiro Tanaka-a wingman-attacked Thacker from the side. Thacker says, "A 20mm explosive shell had fractured my tailwheel hydraulic line. That, and other minor damage to the plane by small calibers ... I smelled hydraulic fluid in the cockpit, so I quickly ducked under some clouds and left the scene." P02c Tanaka put in a victory claim on the assumption he had shot Thacker down.
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3 cannon round hits on 2 planes and hydraulic damage to both. And controls cut.