Service difficulty report · Static Inverter · Boeing 737990ER

Difficulty date
July 19, 2014
Submitted
July 22, 2014
Operation
Air carrier
Aircraft
N457AS
Make and model
Boeing 737990ER
Aircraft serial
36355
Aircraft time
1,725 hours, 548 cycles
Part
Static Inverter
Part number
100201022090
Part serial
CJ004290
Condition
Warning Light
Part time
21,649 hours, 10,090 cycles
Stage of operation
TX
How discovered
O
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

ELECTRICAL ILLUMINATED DURING ROLLOUT. ACFT GROUNDED. MSU STATIC INVERTER INOP ON BITE. REPLACED STATIC INVERTER, IAW 24-34-21. NO HELP. ACCOMPLISHED WIRE CHECK IAW FIM 24-34-TASK 801 & WDM 24-34-11 & 24-28-11. TRIED NEW SPCU, NO HELP. ORIGINAL PART REINSTALLED. REPLACED STATIC INVERTER RCCB IAW MM 24-34-31. NO HELP. REPLACED STATIC INVERTER IAW MM 24-34-21-000-801. OPS NORMAL.