Right for once this isn't a thread about a Mk 2 focus started by fastlife

My brothers focus (Mk2 fl Titanium),has an issue with the indicators. Thet work fine when turning left but they don't work when turning right. However, when you put the hazards on all four work fine.
Could it be a fault with the indicator stalk? If so is this easy to replace as he's got to drive to London on Tuesday?