From the National Audit office report
From HC 190 2012-2013
Equipment used to drop bombs from the older model of the Nimrod maritime patrol aircraft.7 Central depots have issued an average of 43 of these in the previous two years, but still hold 54 years of stock. Following our analysis, the Department confirmed these items should have been disposed of in 2010 when this model was retired from service
54 years of stock?