Weather and Approach
The pilot obtained a full weather briefing before departing on an instrument flight. No thunderstorms or rain were forecast for the destination airport. Upon arrival, the pilot listened to the AWOS information, which reported no rain or thunderstorm activity. The controller informed the pilot of a weather cell located 25 miles north of his position and provided a vector for a localizer runway 32 approach. The pilot verified the weather on the airplane's weather radar.
Landing Attempt
The pilot was cleared for the approach 10 miles from the locator outer marker. At the outer marker, the pilot lowered the flaps to 15 degrees and extended the landing gear. The airplane was slowed to 115 knots. While descending through 200 feet, the pilot observed rain showers crossing the runway. The airplane touched down at the 1,000-foot marker, and the flaps were lowered to 60 degrees. The antiskid system was on, and the airplane began hydroplaning. The pilot attempted to use brakes, but the hydroplaning increased. The pilot released the brakes, and the airplane slowed to 78 knots. When brakes were reapplied, the hydroplaning continued.
Go-Around and Obstacle Strike
With 2,300 feet of runway remaining, the pilot elected to abort the landing. The airplane continued hydroplaning and became airborne 300 feet from the end of the runway. During the climb-out, the left main landing gear door and the right leading edge of the right wing collided with the localizer antenna.
Subsequent Landing
The pilot climbed to traffic pattern altitude, checked for damage, and contacted personnel on the ground. After a low pass for a visual check of damage, the pilot reentered left traffic and landed without further incident.