The Sea Kings had two accidents in 1990 and 1991, respectively, after which the helicopters needed to be renovated. A new Mk 43B was delivered in August 1992, followed by the renovated aircraft from the 1990 crash. The main difference was new avionics. The squadron then, one by one, upgraded the avionics on the entire fleet, a job completed in 1996. The role of the SAR service was evaluated in 1992 and it ended up with Parliament approving the purchase of two more helicopters, bringing the total to twelve. The two new helicopters were delivered in 1995.