If you are an airline employee some of the deductions you may be able to claim are identified below. 
Sunglasses, sunhats and sunscreen lotions – if the nature of your work requires you to work in the sun for all or part of the day and you use these items to protect yourself from the sun at work for example, if you work on the tarmac at an airfield servicing refuelling or loading aircraft. 
Flight attendants  
Moisturiser and re-hydrating hair conditioner used when working in abnormally dry aircraft cabin conditions –  but not make-up or hairdressing expenditure (unless special circumstances apply). Shoes and hosiery when part of a uniform. The cost of luggage trolleys and decline in value of luggage. 
Pilots 
Luggage trolleys. Medical examination costs associated with the renewal of your work related business licences. Anti-glare glasses – but not prescription glasses or contact lenses. 
Flight engineers 
Luggage trolleys. Anti-glare glasses – but not prescription glasses or contact lenses. 
Ground engineers 
The cost of wet weather gear to protect clothing from tarmac soiling but not deductions for luggage .