(RPM on both engines was down to 20 percent by this time.) Again he attempted to airstart
the starboard engine by checking the left throttle in the OFF position, positioning the right throttle to idle and depressing the right ignition button.
was attempted, and the pilot felt a sensation that the engine was starting, but it did not accelerate.
They had to shut down the engine and perform an immediate airstart
. The engine started quickly, but its performance was severely degraded.
In May, the aircraft will go to California's Edwards Air Force Base for airstart
Limited processing horsepower and unimpressive 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
Once the prescribed five minutes had elapsed, the pilots began airstart
procedures on the starboard engine.
The pilot set up for an immediate ditch and the copilot transitioned from shutdown procedures to airstart
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
." To accomplish this procedure, I had to reach down and hit the auto/restart switch and wait.
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.