777 FLCH getting stall protection
Along with some other modes.....
Older planes in fleet......
Note: The autothrottle will not automatically activate to support stall protection when the pitch mode is FLCH SPD or TO/GA.
Note: The autothrottle will not support stall protection when the A/T mode is HOLD.
Note: During a descent in VNAV SPD with the autothrottle armed and not active, the autothrottle can automatically activate in HOLD mode and will not advance thrust levers to support stall protection.
Newer planes in fleet.....
If the pitch mode is FLCH SPD, VNAV SPD, or VNAV PTH and A/T is in HOLD or THR mode, and speed decreases into the amber band, the A/T will change from HOLD to THR mode. Thrust will increase proportional to amount speed has decreased into the amber band.
If the pitch mode is TOGA during takeoff, and the A/T is in HOLD mode, and thrust has been manually set below the TO thrust reference, and a low speed condition is encountered, then the A/T mode will change from HOLD to THR REF and will advance thrust towards the selected TO thrust reference while airspeed is within 10 kts of stick shaker speed.
Note: During a descent in VNAV SPD or FLCH SPD with the autothrottle armed and not active, the autothrottle automatically activates in THR mode and advances thrust to a throttle position corresponding to the relative distance speed has decreased into the amber band so that if speed continues to decrease, thrust will reach the CLB thrust limit as stick shaker is activated.