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The Australian Defence Force (ADF) has grounded its entire fleet of 47 Airbus MRH 90 Taipan helicopters following a recent precautionary landing caused by a tail rotor vibration.
News of the grounding was first reported by The Canberra Times on Wednesday.
The report said an Australian Army MRH 90 was flying from the LHD HMAS Adelaide off the Queensland coast to Brisbane recently when it experienced the vibration, causing it to make a precautionary return to the ship.
“The aircraft captain aborted the mission and returned to HMAS Adelaide for a precautionary landing,” the report said, quoting a Defence spokesman. “No personnel were injured during the incident.”
“While the investigation is underway, the ADF has ceased all MRH-90 flying pending further technical investigation and advice.”
The Navy operates six MRH 90s from the ADF’s larger pool, and regularly rotates aircraft back through the pool for periodical maintenance, most of which is conducted by Airbus at Brisbane Airport or a combined Airbus and Army team at Townsville.
The aircraft are operated by Navy’s 808SQN at Nowra, and Australian Army’s A and B SQNs of 5 Aviation Regiment (5Avn) at Townsville.
The grounding follows an ABC report in June which revealed Project AIR 9000 Phases 2, 4 and 6 which resulted in the acquisition of the MRH 90 in three batches to initially complement and ultimately replace Army’s S-70A-9 Black Hawk and Navy’s Sea King helicopters, remained on the federal government’s Projects of Concern list.
The MRH 90 was originally scheduled to have been declared fully operational (FOC) in 2014, a milestone which, despite improvements in aircraft availability and sustainment in recent years, is still yet to be formally achieved.
As a result, Army has been forced to retain about a dozen Black Hawks for the special operations support role some five years beyond their originally planned retirement.
The grounding will likely have a significant effect on the ADF’s ability to provide airborne assault and logistics support to the multi-national Exercise Talisman Sabre currently underway off central Queensland.