They had to shut down the engine and perform an immediate airstart
The pilot set up for an immediate ditch and the copilot transitioned from shutdown procedures to airstart
In May, the aircraft will go to California's Edwards Air Force Base for airstart
The squadron found out that the airstart
check valve had failed open, which allowed 1,100-degree-Fahrenheit engine bleed-air to charge the huffer hose in reverse.
These logic changes either accommodate the malfunction and avoid the shutdown or, in some cases, have provisions to tolerate the malfunction if Primary (PRI) mode is reselected as part of the airstart
These tests also confirmed an acceptable airstart
envelope for a demonstrator aircraft.
Once the prescribed five minutes had elapsed, the pilots began airstart
procedures on the starboard engine.
He continued the compressor-stall checklist, secured the engine, and tried an immediate airstart
, which also failed.
Option two was to apply the boldface EP entitled "Immediate airstart
The first shutdown and restart was a starter-assisted airstart
, where we simulated engine shutdown as a precaution, then restarted via a non-memory checklist.
After several unsuccessful airstart
attempts, my face felt flushed, and my lips were: numb.
I selected throttle off to prepare for an immediate airstart