It is every airline’s worst nightmare: an undetected crack developing on an aircraft that leads to an extreme event in flight, such as the explosive decompression of Aloha Airlines flight 243 that swept a flight attendant outside the Boeing 737 to her death in 1988.

US carrier Delta Air Lines, which has an average fleet age of 17 years – more than double that of Qantas – has become the first airline to use technology developed by Australian-listed Structural Monitoring Systems (SMS) in Perth to monitor aircraft structural fatigue with an array of sensors.

SMS shares have risen 40 per cent to $1.47 since it received approval in late December from the US Federal Aviation Administration (FAA) and Boeing for its technology after a test program with some of Delta’s 737s.

Overall, SMS shares have risen 287 per cent over the past 12 months, compared with a 10.1 per cent fall in the benchmark S&P/ASX 200 index over the same period.

Source: SMH