Service difficulty report · Control Panel · Boeing 737890

Difficulty date
July 6, 2014
Submitted
July 10, 2014
Operation
Air carrier
Aircraft
N519AS
Make and model
Boeing 737890
Aircraft serial
36482
Aircraft time
20,711 hours, 6,193 cycles
Part
Control Panel
Part number
4082260939ASA
Part serial
00021997
Condition
Failed
Location
Flight Deck
Part time
49,941 hours, 21,079 cycles
Stage of operation
CL
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

THE AUTOPILOT SELECTED, DISCONNECTED TWICE DURING THE FLIGHT, ONCE DURING CLIMBOUT AND ONCE IN LEVEL FLIGHT AT 38,000 FT. THE AIR WAS SMOOTH IN BOTH CASES. WHEN THE AUTOPILOT DISCONNECTED IN CRUISE, AUTOTHROTTLES WORKED FINE. ACFT GROUNDED. FCC A & B LOGGED NUMEROUS MCP FAILURES. REPLACED MCP REF MM 22-11-34, OPS CHECKS NORMAL.