SDR DALA2019060703455

Service difficulty report · Connector · Boeing 737832

Difficulty date: June 7, 2019
Submitted: June 7, 2019
Operation: Air carrier
Aircraft: N384DA
Make and model: Boeing 737832
Aircraft serial: 30347
Aircraft time: 63,828 hours, 25,124 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Connector
Condition: Shorted
Location: Hyd Pump
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

DURING SECOND PUSHBACK WHEN THE ELEC HYD PUMP WAS TURNED ON. THE OVERHEAT LIGHT CAME ON IMMEDIATELY AND NOTICED AN ELECTRICAL SMELL. THE LIGHT BURNED OUT AFTER ABOUT 30 SECONDS. THE SWITCH WAS TURNED OFF AND THE SMELL WENT AWAY. T/S PER B737 WDM 29-34-11 FOUND PIN 7 OF "B" ELEC 1 HYD PUMP CONNECTOR SHORTED INTERNALLY TO OTHER PINS IN PUMP. REPLACED SYS "B" ELEC 1 HYD. PUMP PER B737 AMM 29-11 OPS CK NML. REPLACED HYD OVERHEAD PANEL P5-8 PER B737 AMM 29-11 OPS CK NML. PUMP LK AND OPS CK GOOD.