Particle.news

Download on the App Store

Air Force Report Blames Frozen, Contaminated Hydraulic Fluid for Alaska F-35A Crash

The report highlights systemic maintenance lapses that left the jet vulnerable in extreme cold.

Image
Aircraft assigned to the 25th Fighter Squadron taxi during exercises at Eielson Air Force Base in Alaska.
A U.S. Air Force F-35 Lightning II, assigned to the 355th Fighter Squadron, takes off during Red Flag-Alaska 24-3 at Eielson Air Force Base, Alaska, Aug. 22, 2024. (U.S. Air Force photo by Senior Airman Julia Lebens)
Image

Overview

  • The Accident Investigation Board released its findings this week, valuing the total loss at about $196.5 million and confirming the pilot suffered only minor injuries.
  • Ice in landing-gear struts led weight-on-wheels sensors to register a false on-ground state, triggering ground-mode flight controls and causing loss of control while airborne.
  • The pilot spent roughly 50 minutes on an airborne conference call with five Lockheed Martin engineers and attempted two touch-and-go maneuvers, with crew decision-making cited as a contributing factor.
  • Investigators found up to 30 percent water in the landing-gear hydraulic fluid, unsecured and poorly tracked fluid barrels, contaminated servicing equipment, and short staffing with weak HAZMAT oversight.
  • Nine days later, another Eielson F-35 experienced a similar nose-gear issue and landed safely, and the board noted prior Lockheed guidance from April 2024 on cold-weather sensor risks was not consulted.