Service difficulty report · Control Panel · Boeing 737990ER

Difficulty date
October 4, 2023
Submitted
October 6, 2023
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
30,986 hours, 9,717 cycles
Part
Control Panel
Part number
8221567102
Part serial
45LX8V
Condition
Malfunctioned
Location
Flight Deck
Part time
31,006 hours, 9,726 cycles
Stage of operation
NR
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

MCP SPEED WINDOW HAD A FEW WHITE DOTS DISPLAYED. GROUNDED - YES. (RESOLVED ON W/O: 1971086 TASKCARD: N/R-00002 ) REMOVED & REPLACED DFCS MCP REF AMM 22-11-34-400-801, OPS CK NML REF AMM 22-11-34/501 (GP 32), LAND VERIFY TEST (GP 49) REF AMM 22-11-00/201 & HGS SYSTEM TEST REF SMM 34-36-00. AIRCRAFT RELEASED FROM MEL 22-16G, C/N 04035474. SEAMC NOTIFIED "DARWIN." REVERSAL OF CONFIGURATION CHANGES NOT REQUIRED. REF L/P 60641475 FOR A/C APPROACH SURVEY.