Service difficulty report · Control Panel · Boeing 737990ER

Difficulty date
October 20, 2016
Submitted
October 24, 2016
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737990ER
Aircraft serial
44105
Aircraft time
5,285 hours, 1,731 cycles
Part
Control Panel
Part number
8221567102
Part serial
45LXCG
Condition
Malfunctioned
Location
Flight Deck
Part time
5,327 hours, 1,744 cycles
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

AUTOPILOT LIGHTED DIGITS FOR CRS SPD HDG ALT DO NOT DIM ALL OTHER A/P LIGHTS OPERATE NORMALLY. ACFT GROUNDED. REPLACED DFCS MODE CONTROL PANEL, IAW AMM 22-11-34. INSTALLATION TESTED NORMAL.