SDR ASAA2015043011589

Service difficulty report · Switch · Boeing 737990ER

Difficulty date: April 30, 2015
Submitted: May 4, 2015
Operation: Air carrier
Aircraft: N464AS
Make and model: Boeing 737990ER
Aircraft serial: 40714
Aircraft time: 3,641 hours, 1,196 cycles
System (JASC): 2230 · Auto Throttle System
Part: Switch
Part number: 254A115013
Condition: Failed
Location: Throttle Stand
Stage of operation: TX
How discovered: 9
Nature of condition: N
Precautionary procedure: O

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

What was found

PSEA LIGHT IS ILLUMINATED WITH BOTH ENGINES SHUTDOWN. ACFT GROUNDED. TRA RT, LT 53 FAULT 31-52003 ON PSEU. DOES NOT CHANGE STATUS ON PIN 42 OF D 10984 WITH THROTTLES FULLY ADVANCE OR AT IDLE. DID FIM 32-09, TASK 815, FOUND BAD SWITCH PACK M1767. REPLACED M1767, RT AUTOTHROTTLE SWITCHPACK, REF MM76-11-07-400-802-F00. OPS NORMAL.