SDR DL76L971316

Service difficulty report · Bpcu · Boeing 767332

Difficulty date: July 7, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N179DN
Make and model: Boeing 767332
Aircraft serial: 25144
System (JASC): 2450 · AC Power Distribution System
Part: Bpcu
Condition: Failed
Location: E/E Compt
Component: 734285C
Stage of operation: CR
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

LEVEL AT FL310 ON CENTER AUTOPILOT, A/C EXPERIENCED A SHARP PITCH BUMP OR SPIKE. AUTOTHOTTLES, ALL GALLEY POWER DROPPED OFF MOMENTARLIY, GALLEY POWER RECOVERED AUTOMATICALLY. RECONNECTED AUTOTHOTTLES, NO PROBLEMS REMAINEDER OF FLIGHT. BITE MCDP AND BPCU. BPCU FAILS ITSELF, CODE 44. BITE MCDP ALL FAULTS RELATED TO POWER LOSS. REPLACED BPCU AND RAN TEST 30 AND 40 MCDP ALL OK.