SDR AU000891

Service difficulty report · Inverter · Boeing 767277

Difficulty date
March 16, 2000
Submitted
November 2, 2000
Operation
General aviation
Make and model
Boeing 767277
Engine
Ge CF680A
System (JASC)
2422 · AC Inverter
Part
Inverter
Part number
7077603
Condition
Faulty
Location
Ac System
Part time
42,538 cycles
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
A

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

What was found

(AUS) STANDBY STATIC INVERTER FAULTY. WORKSHOP INVESTIGATION FOUND THAT TRANSISTORS Q3 TO Q10 WERE SHORT CIRCUITED OR OPEN CIRCUITED WITH THE BASE BIAS RESISTORS BLOWN OPEN.