SDR AALA202004019009

Service difficulty report · Control Panel · Boeing 737823

Difficulty date: March 31, 2020
Submitted: April 1, 2020
Operation: Air carrier
Aircraft: N980AN
Make and model: Boeing 737823
Aircraft serial: 33203
Aircraft time: 33,608 hours, 13,725 cycles
System (JASC): 2210 · Autopilot System
Part: Control Panel
Condition: Malfunctioned
Location: Cockpit
Stage of operation: CL
How discovered: O
Nature of condition: G
Precautionary procedure: K

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

What was found

AIRCRAFT NOT GROUNDED - MULTIPLE AVIONICS FAILURES DURING CLIMBOUT, VNAV INOP, DISPLAY SOURCE 1 FEW SECONDS THEN NORMAL, MODE CONTROL PANEL (MCP) COULD NOT RESET VALUE IN ALT WINDOW TEMPORARILY. TROUBLESHOOTING ACCOMPLISHED. NO. 1 DISPLAY ELECTRONIC UNIT (DEU) FAULT, TESTED NORMAL PER FIM 31-63-00. VNAV INOP, CHECKS NORMAL PER FIM 34-61-00. RESET MODE CONTROL PANEL (MCP) AND ACCOMPLISHED TEST PER FIM 22-11-00, ALL TESTS NORMAL.