Norling awarded the All Blacks a penalty. Captain Andy Dalton took the ball in hand.
Hewson and Doug Rollerson had been sharing the goal-kicking duties that day, one taking the left side of the field, the other the right.
"My first thought was, 'it's my kick'," says Hewson. "I grabbed the ball off Mr Dalton and I just thought it had to go over - there was nothing else on my mind. No one said anything."
Hewson lined up the ball about 35m out from the posts, halfway between the touchline and centre of the field.
He went through his pre-kick routine as quickly as possible, not wanting to get bogged down in thought. The 49,000 people in the crowd went quiet as he stood in position at the top of his mark.
Hewson ran in and swung his left boot but as the ball went flying into the air, a bad feeling gripped him. He put his hands to his head and listed to one side, willing the ball through the uprights.
"It looked as though it was going to veer to the right and miss," he says. "I was willing it back, all right - I think everyone in the crowd was, too."
A mysterious alchemy of aerodynamics, wind pressure and fate somehow curved the ball enough in its flight for it to sneak between the posts. Hewson lifted his hands from his head, shot up his arms and punched the air in triumph.
It's one of the most iconic visual moments in New Zealand sport.
"Pure relief, that's all that was," Hewson says.
It wasn't until the kick went over and the game had been won that Hewson and his team-mates realised how much was riding on that moment. The tour had left a deep scar across the country but the series win was a moment to savour for the pro-tour contingent.
"In hindsight, it probably should never have happened. It was pretty tough on everyone. We weren't the most popular team in the world at that stage - we were confined to barracks a lot of the time. We had to win to make it worthwhile."
Hewson admits that, despite playing 19 tests in an All Black career that spanned from 1979 to 1984, most people remember him for that moment alone. It's something he's happy to live with.
"It's nice to be remembered for something positive. It wasn't such a positive situation for New Zealand but if we'd lost, the tour would have been all for nothing."
Hewson is now chairman of the board of Petone Sportsville, an initiative designed to bring the community's sports clubs together and boost participation.