SDR 99ZZZX2498

Service difficulty report · Inverter · Bell 412

Difficulty date
May 27, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N421EH
Make and model
Bell 412
Aircraft serial
33067
System (JASC)
2422 · AC Inverter
Part
Inverter
Part number
412075101101
Condition
Failed
Location
Ac System
Stage of operation
CR
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

APPROXIMATELY 15 MINUTES AFTER DEPARTURE, A SMELL OF BURNED WIRE FUMES WAS NOTICED IN THE AIRCRAFT. AIRCRAFT ROUTED TO INTERCOSTAL CITY. UPON LANDING, MECHANICS FROM LAKE CHARLES COMPLETED A TROUBLESHOOTING PROCEDURE. INVERTER WAS FOUND TO HAVE 2 BURNED DIODES. REMOVED AND REPLACED INVERTER WITH SERVICEABLE. MECHANICS INSPECTED ELECTRICAL SYSTEM AND NO DEFECTS NOTED. TEST RUN AND OPS CHECKED SYSTEM WITH NO DEFECTS NOTED.

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