Summary

  • Finding a fault, dispatching a vessel and completing a repair are different milestones. One headline number cannot explain all three.
  • ASEAN's enhanced guidance puts permit handling and government coordination alongside the work at sea. Its adoption is not evidence that delays have disappeared.

A navigation chart belongs in a cable repair plan. So does a description of the ship, its working method and what the crew will do in an emergency. Those are not hypothetical demands: they appear in Singapore's 2019 incident guidance. A cable may be broken beneath the water, but part of the job is necessarily done ashore.

That paperwork has a purpose. A vessel recovering cable cannot be treated as if it were simply passing through a busy shipping lane. The guidance requires approval for the works and the operating procedures before repairs start, followed by daily progress reports. Reporting damage is not the same as obtaining permission to repair it.

The difficulty is making necessary coordination work before it becomes another source of delay. In his 14 October analysis, Geoff Huston describes the transition from locating a break optically to a marine operation: recovering cable, splicing and testing it aboard a specialist vessel, then returning it to the seabed. Knowing where the fault lies does not make those resources available—or secure their permission to operate.

Three weeks before departure

UNIDIR's 2025 report gives a useful measure of the interval before the visible work begins. For the 2023 data it discusses, the average time from notification to departure was 21 days; average transit took another 7.5 days. Neither number describes the entire repair. Nor can all 21 days be assigned to a government desk: the report also identifies weather, ships, crews, spare parts and security requirements as constraints.

Its longest reported delay, 947 days, is arresting but poor material for a promise about the next fault. It is an extreme case, not a typical Asian waiting time or a measurement of permitting alone. For a network operator, the more useful question is which part of the sequence can be prepared before a cable fails.

There is already a regional policy answer. In January 2026, IMDA announced enhanced ASEAN guidelines recommending simpler permit processes, a single government contact and better coordination with operators. These are recommendations, not a regional repair-time guarantee. Their value will depend on whether a crew encounters a working procedure rather than having to discover one during an outage.

Buying another cable route and preparing to repair the existing ones solve different problems. The former can offer somewhere else to send traffic; the latter determines how long the damaged route remains unavailable. A resilience plan needs both a map of alternatives and a workable path from fault report to repair authority.

Correction and update, 25 October 2026: This version adds the 2026 ASEAN guidance and withdraws an independently unverified three-to-five-working-day Singapore approval claim. The cited 2019 document establishes a procedure, not that timing or an expiry date. Original publication date and URL are unchanged.