February 14, 2012, Hollister, Calif., Beech G18 Twin Beech

At about 1340 Pacific time, the airplane departed the runway during takeoff and sustained structural damage to the left wing. The pilot and a passenger were not injured. Visual conditions prevailed. The pilot was to ferry the airplane to Australia the following day, with a planned intermediate stop in Hawaii. He had performed two test flights the day before the accident, noting slightly higher right-engine oil temperature and a shudder in flight that lasted for no more than a second or two. The pilot decided to undertake one more test flight, with a mechanic.

Key Takeaways:

• An airplane sustained structural damage and departed the runway during a test flight takeoff, though the pilot and passenger were not injured.
• The incident occurred at 30 feet agl when the right wing fell, prompting the pilot to believe the right engine had lost power.
• The pilot's attempt to counter the wing drop at an airspeed below blue line resulted in a hard landing, a blown tire, and the airplane striking a grassy bank.
• The test flight was undertaken after the pilot had noted minor right-engine issues (higher oil temperature, shudder) during prior test flights in preparation for a ferry trip to Australia.

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