Service difficulty report · Control Panel · Boeing 737990ER

Difficulty date
September 8, 2017
Submitted
September 11, 2017
Operation
Air carrier
Aircraft
N468AS
Make and model
Boeing 737990ER
Aircraft serial
41735
Aircraft time
12,744 hours, 4,271 cycles
Part
Control Panel
Condition
Malfunctioned
Location
Course Selector
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FIRST OFFICER`S COURSE SELECTOR ON MCP IS FROZEN, CAN'T CHANGE COURSE. ACFT GROUNDED. VERIFIED DEFECT, CYCLED MCP DC 1 & 2 CIRCUIT BREAKERS, FIRST OFFICER`S COURSE WINDOW OPS NORMAL IAW AMM 22-11-34. ACCOMPLISHED FLIGHT DIRECTOR MCP COURSE/HEADING SELECT TEST IAW AMM 22-11-00, TEST PASSED. NO HISTORY PAST 30 DAYS.