A hero helicopter pilot who saved 31 lives in Afghanistan could die unless he receives a stem cell transplant.

Chris Gordon, a 43-year-old former RAF Chinook pilot, received the Distinguished Flying Cross from the late Queen Elizabeth II in 2013 for his life-saving work during the war in Afghanistan.

The medal for gallantry was handed to Mr Gordon after he used his helicopter to shield British and Afghan troops from enemy fire before airlifting them to safety.

Mr Gordon carried out his brave rescue mission despite losing an engine during the attack.

But now, the veteran has launched an appeal for a stem cell donor after he was diagnosed with severe aplastic anaemia.

In a plea to donors, Mr Gordon said: 'In Afghanistan I saw courage and leadership at their best, people stepping forward when others needed help.

'Now I find myself needing help from other people.'

Aplastic anaemia is an extremely rare, life-threatening blood disorder which means Mr Gordon's bone marrow cannot produce new blood cells.

Doctors have told him that he needs a transplant for a second chance at life. The former pilot is now working with the blood cancer charity DKMS to get more people to register as potential stem cell donors.

Mr Gordon, who is from Manchester but now lives in Los Angeles, is now working as a director at a helicopter company, has been told that he needs a transplant in the next few months.

His brother Jonathan was found to be only a half match so medics are scouring global stem cell registers in the hope that someone will be a full match for Mr Gordon.

While he waits for a match he is having blood transfusions twice a week.

DKMS said that finding a matching donor is also linked to ethnic heritage, and only a small proportion of the stem cell register is from an ethnic minority background.

This means that people such as Mr Gordon, who is half Jamaican, have less chance of finding their lifesaving match, the charity said.

'A potential donor could be anyone, anywhere in the world. But I need them to join the donor register so they can be identified as a match,' the veteran said.

He continued: 'I really think that if you're OK giving blood, you can donate your stem cells.

'People don't know that they can do this, and they don't know the impact that it could have. The actual sign-up process is so easy, and most people will never even be called up. But if you are a match, you could save the life of someone like me, and it is probably much easier than you think.'

Mr Gordon, who spent 14 years with the RAF, lives with his wife and two-year-old daughter. The couple are expecting a baby boy within weeks. 

DKMS said that signing up to its register is a 'simple process', involving just a few health questions and some cheek swabs, which can be ordered for free from the charity's website.

DKMS spokesperson Bronagh Hughes said: 'For Chris, and patients like him around the world, the right person joining the stem cell donor register could give them their lives back.

'We are so grateful that he has chosen to share his story to encourage more people to sign up as potential donors.

'Signing up only takes a few minutes, but one day you could be called to give someone a second chance. Take a look at the DKMS website to find out more and order your free kit today; you could save a life.'