SDR ASAA2019021428199

Service difficulty report · Autothrottle Sys · Boeing 737890

Difficulty date: February 14, 2019
Submitted: February 20, 2019
Operation: Air carrier
Aircraft: N585AS
Make and model: Boeing 737890
Aircraft serial: 35683
Aircraft time: 43,886 hours, 13,140 cycles
System (JASC): 2230 · Auto Throttle System
Part: Autothrottle Sys
Condition: Malfunctioned
Location: Cockpit
Stage of operation: DE
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 TRIPPED OFF TWICE DURING DESCENT. GROUNDED - YES. ACCOMPLISHED AUTOTHROTTLE SYSTEM- OPERATIONAL TEST REF AMM 22-31-00-710-801. ALL TESTS PASSED. ACCOMPLISHED AUTOTHROTTLE SYSTEM- SYSTEM TEST REF AMM 22-31-00-710-802. ALL TESTS PASSED. GROUND VERIFICATION SUCCESSFUL.