It was discovered that large and sudden temperature changes (e.g., from being parked in the sun prior to becoming airborne) were falsely causing the engine stator blades to close and choke the compressor.
Det blev opdaget at store og abrupte temperaturændringer (fra at flyet stod parkeret i solskin til at det startede) fejlagtigt fik statorbladene til at lukke og kvæle kompressoren.