Service difficulty report · Relay · Beech B99

Difficulty date
December 24, 2014
Submitted
January 13, 2015
Operation
Air carrier
Aircraft
N1924T
Make and model
Beech B99
Aircraft serial
U115
Aircraft time
36,892 hours, 54,000 cycles
Part
Relay
Part number
5036120829
Condition
Failed
Location
Electrical
Stage of operation
CL
How discovered
O
Nature of condition
H, J
Precautionary procedure
A

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

What was found

DURING CLIMB OUT AT APPROX 8000 FT MSL, PILOT NOTICED RT GENERATOR FAILED. PERFORMED POH CHECKLIST ITEMS & TRIED TO RESET GENERATOR WITH THE SAME RESULTS. TOWER ELECTED TO DECLARE AN EMERGENCY . RETURNED & LANDED WITHOUT FURTHER INCIDENT. TROUBLESHOOTING REVEALED RT OVER VOLTAGE RELAY & LT REVERSE CURRENT RELAY DEFECTIVE. R & R BOTH RELAYS. PERFORMED ELEC SYS OPS CHECKS. ALL SYSTEMS CHECKED NORMAL.

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