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SDR DL733002248

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Service difficulty report · Generator · Boeing 737347

FAA SDR system

Difficulty date
November 17, 2000
Submitted
November 21, 2000
Operation
Air carrier
Aircraft
N306WA
Make and model
Boeing 737347
Aircraft serial
23347
Aircraft time
43,183 hours, 29,706 cycles
Engine time
22,241 hours, 16,356 cycles
System (JASC)
2420 · AC Generation System
Part
Generator
Condition
Failed
Location
Nr 2 Engine
Stage of operation
DE
How discovered
O
Nature of condition
H, J
Precautionary procedure
O

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

What was found

FLT1799/16 SLC-COS. DURING DESCENT FROM FL370 RT GEN DROPPED OFFLINE, 10 SEC LATER LT GEN DROPPED OFFLINE. UNABLE TO RESET GENERATORS PER POM. DID NOT START APU. CONCLUDED DESCENT AND APPROACH. REPLACED NR 1 GCU PER MM. MCO''D NR 2 GENERATOR PER MEL 24-00-01A. AT KSLC FOUND NR 2 GENERATOR FAILED AND NR 2 CSD OVERSERVICED. REPLACED BOTH CSD AND GEN. ALSO PER ATL MCC ANALYIST REPLACED BOTH EXT PWR CONTACTORS AND BOTH ENG GEN BREAKERS. REPLACED A/C BATT, R41 AND R348 RELAYS, AND P5-4 ELEC CONTROL PANEL. ALSO, BOTH GCU''S WERE REPLACED AGAIN. BOTH GENERATOR SYSTEMS CHECKED NORMALLY.