Service difficulty report · Knob · Boeing 737990ER

Difficulty date
August 25, 2016
Submitted
August 29, 2016
Operation
Air carrier
Aircraft
N468AS
Make and model
Boeing 737990ER
Aircraft serial
41735
Aircraft time
8,643 hours, 2,837 cycles
Part
Knob
Condition
Inoperative
Location
Course Selector
Stage of operation
NR
How discovered
O
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

F/O COURSE SELECTOR KNOB INOPERATIVE. ACFT GROUNDED. COULD NOT DUPLICATE PROBLEM. PERFORMED OPS TEST OF MCP IAW AMM 22-11-34/401 ALL TESTS PASSED. PERFORMED LAND VERIFY TEST IAW AMM 22-11-00/201 & HGS SYSTEM TEST IAW AMM 34-36-00. ALL TESTS PASSED ACFT REMAINS CATIIIA AUTOLAND & HGS QUALIFIED.