Service difficulty report · Button · Boeing 737990ER

Difficulty date
June 16, 2014
Submitted
June 18, 2014
Operation
Air carrier
Aircraft
N435AS
Make and model
Boeing 737990ER
Aircraft serial
43292
Aircraft time
2,453 hours, 798 cycles
Part
Button
Condition
Failed
Location
Display
Part time
2,455 hours, 798 cycles
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'S MCDU LINE SELECT BUTTON 5L REQUIRES ABNORMALLY FIRM PRESS TO SELECT THE LINE INTO THE SCRATCHPAD. ACFT GROUNDED. REPLACED MCDU. SYS TESTS GOOD REF TASK 34-61-01-400-802.