I've just been asking Miss Leezyjet who does recruitment for a large UK handling agent, and she said if it's for a ground based job, then 2 pages should be fine.
It's a bit of a problem when it comes to the flight training though as there are 2 trains of thought on this.
1) They will just leave as soon as a flying job comes up.
2) They have worked hard to train to fly so obviously have more than just a passing interest in the industry so could be a good employee whilst they are here.
She says put the info in the CV but mention in the letter that those jobs were to support yourself through training.
Hope that helps.
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