Flap position indication split of 15 degrees 737NG
Got the following quote out of a tech book:
"If the TE flaps are in a skew condition, the FSEU sends electrical power to the TE flaps bypass valve. This stops the hydraulic operation of the TE flaps. THE FSEU sends an input to the Flap Position Indication control to set the pointer 15 degrees apart.
If the skew sensor position is more than the position transmitter position, the FSEU makes the pointer for the skewed flap move 15 degrees in the extend direction. If the skew sensor position is less than the position transmitter position, the FSEU makes the pointer for the skewed flap move 15 degrees in the retract direction."
I don't understand the second part of the statement. Can anybody explain me when are the pointers move 15 degrees in the retract or extend position?
Thanks
WK