Ar 23 Mawrth atebais gwestiwn brys yn y Siambr am y methiant pŵer ym mlwch signalau Gorsaf Ganolog Caerdydd ar 22 Mawrth, a effeithiodd ar yr holl drenau i Gaerdydd.
On 23 March I answered an urgent question in the Chamber about the power failure at Cardiff Central Station signal box on 22 March that affected all train services into Cardiff.