They declined to talk to media. Their son and Ms Timings were flying from the Routeburn Track to Milford Sound on January 4, 2004, when radio contact with the Milford radio tower was lost.
The helicopter plunged into inaccessible terrain in the Humboldt Mountains. Despite a six-day search, their bodies and the aircraft was not located.
Glacier Southern Lakes Helicopters chief executive and pilot Pat West was one of four who visited the site on Wednesday after a company pilot, Brendan Hiatt, spotted the wreckage while on a commercial flight between Fiordland and Queenstown.
"He was on his way back from Milford Sound on a commercial job and spotted something out of place," Mr West said.
Mr Hiatt hovered above the wreckage to identify what he had initially thought was a crash and identified the tail section of the Hughes 500.
The pilot then flew his four passengers back to Queenstown and returned to the crash site with Mr West and two Queenstown police officers.
Vegetation in the area was thick and the wreckage was lying on the south side of a rock face, which would have made it near impossible for initial searchers to locate it.
"Because the helicopter is a dark green, it is hard to see through the alpine scrub," he said.
"We were at the right altitude, at the right place at the right time."
The wreckage covered a sizeable area, with parts of the aircraft scattered across the rock.
"It will hopefully give the families some closure and put the mystery to bed."
The 2004 police search covered the various routes the helicopter might have taken from Lake Howden to Milford Sound and included more than 200 flying hours and 2500 people hours.
Police said in a statement yesterday the wreckage was found at the extremities of the original search area, which comprised extraordinarily difficult and complex terrain.
In August 2004, coroner John Donaldson said the crash was likely to be the result of an error in judgement by the pilot, Mr Montgomerie, who was unfamiliar with the area and conditions.
Seven specialist police staff and two alpine cliff rescue team members were flown to the area yesterday to examine the site.
