Overview
- A planned timing chassis change on July 8 at about 2:50am caused a GPS card to reset its internal date to 2006 and send incorrect time into parts of Telstra's mobile network, triggering the outage.
- The independent Technology Audit Partners review found Telstra did not treat network timing as a critical capability, citing unclear ownership, weak change control, poor incident management, and monitoring that relied on business-hours checks.
- Investigators also identified insufficient NTP expertise and staffing and reported that the two primary timing engineers were on mandatory rest when the impact became apparent.
- The fault produced roughly 12 hours of nationwide disruption to calls, data, digital payments and some transport services, left hundreds of Triple Zero calls unable to connect, and added eight missed emergency calls that later received welfare checks.
- Telstra accepted the findings, has reallocated resources, engaged external specialists, issued just under AUD 1 million in customer credits, docked senior pay, and faces continued ACMA and Senate inquiry oversight with potential regulatory fines.