SDR ASAA2016032416205

Service difficulty report · Switching Unit · Boeing 737990ER

Difficulty date: March 24, 2016
Submitted: April 4, 2016
Operation: Air carrier
Aircraft: N474AS
Make and model: Boeing 737990ER
Aircraft serial: 40715
Aircraft time: 2,889 hours, 964 cycles
Engine: Cfmint CFM567B27E
System (JASC): 2230 · Auto Throttle System
Part: Switching Unit
Part number: 254A115014
Condition: Failed
Location: Autothrottle
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

AFTER LANDING REV AMBER LIGHT ON NR 2 ENGINE DID NOT EXTINGUISH AND NR 2 REVERSER LIGHT ON AFT OVERHEAD PANEL ILLUMINATED. ACFT GROUNDED. REPLACED LT AUTOTHROTTLE SWITCHPACK, ALL OPS NORMAL. REF AMM 76-11-07, 30-11-00, 31-51-00, 32-42-00, 32-09-10, 78-31-00. NO FAULTS ON EAU.