RNZAF base Auckland (Whenuapai) is home to a number of civilian light aircraft and one of these was up flying at the time of visit. Socota TB10 ZK-JIE was imported to NZ from Australia in 2003 and has been with the RNZAF base Auckland Aviation Sports Club since 2006.
Another civvie earning its keep was the Fly My Sky Britten Norman Islander ZK-PIY. Converted from its normal role carrying passengers between Auckland and Great Barrier Island, the trusty "box of noise" was employed by the NZ Defense Force to conduct parachute dropping - I guess considerably less costly than firing up a Hercules to conduct this task.