Service difficulty report · Static Inverter · Boeing 737275

Difficulty date
December 5, 2002
Submitted
February 10, 2003
Operation
General aviation
Make and model
Boeing 737275
Aircraft time
52,601 hours
Engine
Pwa JT8D17A
System (JASC)
2422 · AC Inverter
Part
Static Inverter
Part number
60B400232
Location
Static Inverter
Component
Inverter
Stage of operation
IN
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

(CAN) DATE OF REMOVAL NOV 25/02 DATE OF ARRIVAL IN SHOP SNAG DESCRIPTIONWHEN CONDUCTING W/C 12010 ITEM 8 B737 DAILY CHECK,STNDBY PWR CHECK AC VOLT METER FULL DEFLECTING RIGHT 130 VOLTS. #1 AND 2 AUTO XFMR C/B POPPED AND CADC AC & 26VAC C/BS POPPED, UNABLE TO RESET CADC C/BS.COMPONENT INFORMATION U.N.I. 24-22-0107 (P/N60B40023-2)DESCRIPTION INVERTER, STBY 500VA FTN R0G0A0 (S/N 067C-2191) TSV LAST REPAIR2001-06-27 FINDINGSSNAG TEST FINDINGSFAULT CONFIRMED REPAIRED BY IMPROVING MISCELLANEOUS SOLDERING ON THE CIRCUITS RELATED TO OUTPUT VOLTAGE LEVELS. FAULT CONFIRMED:AT INPUT VOLTAGE OF 24VDC AND INPU T CURRENT 1.5A, NO LOAD APPLIED THE FOLLOWING OBSERVATION WAS MADE: OUTPUT VOLTAGE 155 VACWAITED TWO MINUTESVOLTAG