Service difficulty report · Inverter · Beech B99

Difficulty date
November 23, 2015
Submitted
November 27, 2015
Operation
Air carrier
Aircraft
N4299A
Make and model
Beech B99
Aircraft serial
U146
Aircraft time
36,533 hours, 56,293 cycles
System (JASC)
2422 · AC Inverter
Part
Inverter
Part number
PC250
Part serial
2932
Condition
Faulty
Location
Nr 1
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

EN-ROUTE THE PILOT REPORTED A DUEL INVERTER FAILURE, DUE TO THE IFR WEATHER CONDITIONS. THE PILOT DECLARED AN EMER & DIVERTED WHERE THE WEATHER CONDITIONS WERE VFR. THE PILOT LANDED WITHOUT INCIDENT. TROUBLESHOOTING REVEALED A FAULTY NR 1 INVERTER. REPLACED NR 1 INVERTER & PERFORMED OPERATIONAL CHECKS ON BOTH NR 1 & 2 INVERTERS. ALL CHECKS WERE NORMAL.

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