SDR DALA2026012000426

Service difficulty report · Receptacle · Boeing 757351

Difficulty date: January 16, 2026
Submitted: January 20, 2026
Operation: Air carrier
Aircraft: N583NW
Make and model: Boeing 757351
Aircraft serial: 32983
Aircraft time: 78,451 hours, 25,856 cycles
System (JASC): 2440 · External Power System
Part: Receptacle
Condition: Faulted
Location: Zone 100
Stage of operation: IN
How discovered: V
Nature of condition: B
Precautionary procedure: K

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

What was found

AUDIBLE POP AND SPARKS WHEN GROUND POWER CONNECTED. BURNING ODOR SMELLED IN FLIGHT DECK. GROUND POWER PROMPTLY REMOVED. PERFORMED ELECTRICAL CHECK OF K114. PHASES A AND B BOTH SHORTED FROM INPUT TO OUTPUT. R & R CONTACTOR K114 IAW AMM 24-41. R & R EXTERNAL POWER RECEPTACLE IAW AMM 24-41. R & R PHASE A & B INTERLOCK FUSES. RAN ON APU GENERATOR AND VERIFIED NO POWER TO RECEPTACLE. CONNECTED GROUND POWER & PERFORMED SEVERAL POWER SWAPS. ALL CHECKED GOOD.