SDR HNAA2015100500289

Service difficulty report · Circuit Breaker · Dhav DHC8102

Difficulty date: October 4, 2015
Submitted: October 5, 2015
Operation: Air carrier
Aircraft: N816EX
Make and model: Dhav DHC8102
Aircraft serial: 329
Aircraft time: 56,265 hours, 62,451 cycles
System (JASC): 2450 · AC Power Distribution System
Part: Circuit Breaker
Part number: 2421CB5
Condition: Faulted
Location: Ac Gen
Stage of operation: TO
How discovered: O
Nature of condition: H, J
Precautionary procedure: C

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

What was found

NR 1 ENGINE AC GENERATOR ILLUMINATED UPON TAKEOFF. INSPECTED NR 1 AC CONTACTOR BOX FOUND CIRCUIT BREAKERS FAULTY. R & R CB'S 2421CB3, 2421CB5, 2421CB7 & 2421CB9, PN 2TC12-5. CLEANED & INSPECTED ALL AC CONTACTOR BOX CONNECTOR PLUGS. R & R CONNECTOR PLUG 2421P4, AT NR 1 NACELLE ENGINE FIREWALL R & R CONNECTOR PLUG 2421, P3 AND RECEPTICAL 2421-J3 AT NR 1 NACELLE ENGINE FIREWALL.