The navy has instituted an "operational pause" for the entire fleet of one of it's most important training jets due to problems with its environmental control systems feeding air to pilots.
The Navy announced the grounding April 5, saying it was "in response to concerns raised by T-45C pilots over the potential for physiological episodes."
Multiple sources tell We Are The Mighty that the grounding was prompted by protests by Navy instructor pilots who were concerned over the effects of the malfunctioning oxygen system in the Goshawk. One source tells WATM that more than 100 instructors "I am safed" themselves — essentially telling the Navy they felt unsafe to fly — en masse at three air bases to force the service into coming up with a solution.
According to the Navy statement, on March 31, 94 flights were cancelled between Naval Air Stations Kingsville, Meridian and Pensacola due to operational risk management concerns raised by T-45C instructor pilots. Their concerns are over recent physiological episodes experienced in the cockpit that were caused by contamination of the aircraft's Onboard Oxygen Generation System. Chief of Naval Air Training immediately requested the engineering experts at NAVAIR conduct in-person briefs with the pilots.
The briefs were conducted in Kingsville Monday, then Meridian and Pensacola April 4, the Navy said.
The T-45C Goshawk is a two-seat, single-engine, carrier-capable jet trainer aircraft used by the Navy and Marine Corps for intermediate and advanced jet training. The T-45 is a derivative of the British Aerospace Hawk and has been in service since 1991. The Navy currently has 197 T-45s in its inventory.
"This issue is my number one safety priority and our team of NAVAIR program managers, engineers and maintenance experts in conjunction with Type Commanders, medical and physiological experts continue to be immersed in this effort working with a sense of urgency to determine all the root causes of [physiological episodes] along multiple lines of effort," said Vice Adm. Mike Shoemaker, Commander, Naval Air Forces.
The Navy says it expects to resume flight operations for the Goshawks April 10.