Air New Zealand boss Greg Foran unable to give specifics around involvement with other international militaries

Air New Zealand is refusing to say whether it's done work for other militaries accused of international war crimes.

The company appeared before MPs today to explain its work for the Saudi Navy but there was one notable absence, the National MP who was once in charge.

Air New Zealand's bosses were in apology mode as they were grounded and grilled by the select committee.

CEO Greg Foran and Chair Dame Therese Walsh were forced to explain just how the airline got involved in the civil war in Yemen.

Its subsidiary company Air New Zealand Gas Turbines, fixed Saudi Arabian navy ships. 

Thursday was a day of apologies that was short on answers.

When asked what other armies could be involved Foran asked for "more time." 

Air New Zealand has contracts with 5 or 6 militaries but won't say which ones.

"Obviously the US, Australia, doing work with New Zealand - they're the ones that I'm clear with at this point," Foran says.

"You put a number on it - you must know what the others are - I haven't had a chance to get into that level of detail."

Grant Robertson saying New Zealanders deserved to know.

"Well, no, he does need to tell New Zealanders where those contracts are."

The airline's former CEO Luxon was the elephant not in the room.

Michael Woodhouse took his place on the select committee where the current CEO confirmed Luxon was in charge when Air New Zealand's Saudi contract was signed.

When asked if he should have known about the Saudi contract Luxon responded saying: "Look, no it's a big company."

Adding he was "certainly not aware," of any similar contracts occurring under his watch.

"As chief executive, when a contract's been let to the military of the Saudi Government, you'd expect they would have known," says Robertson.

And even outside the select committee, there's no escape for Air New Zealand with the Green Party calling for an independent inquiry. 

The company has its own inquiry but the Greens want Parliament to investigate too. 

The Greens will push for that Parliamentary inquiry at the next Foreign Affairs select committee - where Labour holds the majority vote. They'd need their backing to and for now, Grant Roberston says wait and see.