Service difficulty report · Module · Boeing 737890

Difficulty date
March 4, 2020
Submitted
March 17, 2020
Operation
Air carrier
Aircraft
N590AS
Make and model
Boeing 737890
Aircraft serial
35687
Aircraft time
46,394 hours, 13,909 cycles
Part
Module
Part number
305RAA1
Part serial
AS10212
Condition
Inoperative
Location
Cockpit
Part time
20,201 hours, 6,353 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

AUTOTHROTTLE DISENGAGED DURING DEPARTURE RESET 3 TIMES, CONTINUE TO DISENGAGE A/T W RED A/T RESET LIGHT. POSSIBLE ENG #1 SLOWER TO RESPOND TO A/T INPUTS BEFORE DISENGAGING. GROUNDED - YES. REMOVED & REPLACED ASM 1 REF B737-800 AMM 22-31-91 1 C/B OPEN & CLOSED, INSTALLATION TEST & PRESSURIZATION TEST PASSED FOR NOSE CELLING PANEL ACCESS ON LEFT SIDE. MEL 22-4B CLEARS ALSO CLEARS MEL 22-99B SEAMC NOTIFIED.