Nov 13 (Reuters) - Adelaide Brighton Ltd (ABC) :
- Updates on doubtful debts provision
- There may have been hidden underpayments by customers, which may have negative impact on FY17 EBIT
- Excluding issue's one-off impact, confirms FY 2017 underlying profit after tax (excluding property) guidance of $188-$198 million
- FY17 ebit is currently estimated to be up to $14 million
