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SA Airways says it has put contingency plans in place ahead of a scheduled National Transport Movement strike.
SAA's Tlali Tlali said Friday's strike would not affect flights and not all the union's members would participate.
The NTM alleges that SAA refuses to recognise it, even though it had 1300 members.
Tlali denied the claim and said the NTM was not recognised as it did not meet certain requirements.
SAA has around 11 000 employees.
