SDR DL72S960721

Service difficulty report · Circuit Breaker · Boeing 727232

Difficulty date: March 31, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N467DA
Make and model: Boeing 727232
Aircraft serial: 20744
System (JASC): 2450 · AC Power Distribution System
Part: Circuit Breaker
Condition: Cracked
Location: E/E Compt
Stage of operation: LD
Nature of condition: H
Precautionary procedure: K

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

What was found

ON FINAL, ALL 3 BUS TIE BREAKERS TRIPPED, PHASE UNBALANCE, OVER EXCITED NR 2 AND NR 3, NR 1 TR UNIT C/B POPPED. FOUND APU GEN BREAKER CRACKED WITH LOOSE CONNECTIONS. REPLACED SAME. ALSO, REPLACED NR 1 ENG GEN BREAKER. RAN ENGS PARALLELED, ALL CHECKS NORMAL.