SDR ASAA2017111622608

Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date: November 16, 2017
Submitted: November 17, 2017
Operation: Air carrier
Aircraft: N530AS
Make and model: Boeing 737890
Aircraft serial: 36578
Aircraft time: 29,688 hours, 8,844 cycles
System (JASC): 2450 · AC Power Distribution System
Part: Circuit Breaker
Condition: Tripped
Stage of operation: TX
How discovered: 9
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

NR 2 ENGINE HPSOV CONTROLLER AND HPSOV INDICATOR CIRCUIT BREAKERS FOUND TRIPPED DURING PRE-FLIGHT. ACFT GROUNDED. INSPECTED THE NR 2 ENGINE HPSOV CONTROLLER AND HPSOV INDICATOR CIRCUIT BREAKERS ON P6-3 E3, E4. NO DEFECTS NOTED, RESET THE CIRCUIT BREAKERS IAW AMM 20-60-01, AND WDM 76-21- 21. ACCOMPLISHED ENGINE RUN, EEC BITE CHECK TEST 13 IAW AMM 71-00-00. ALL GROUND TESTS PASSED. ACCOMPLISHED ACTUATORS TEST 12 IAW AMM 71-00-00. ALL GROUND TESTS PASSED.