Complex sentence: A C-47A (registration LN-NAD) operated by Fred Olsen Flyveselskap crashed 15 mi southwest of Skien, Norway due to "faulty navigation", killing 11 of 29 on board.
Split into simpler sentences: A C-47A (registration LN-NAD) operated by Fred. Olsen Airtransport crashed 15 mi southwest of Skien, Norway due to "faulty navigation", killing 11 of 29 on board.