Narrative:

The cockpit lights flashed and the instruments went blank for approximately 1 second. EICAS and electrical panel indications alerted us that a right generator drive failure had occurred. Appropriate abnormal procedure was accomplished to include disconnect of right generator drive and starting APU. Flight was continued as planned. 5 mins later; the right engine oil quantity was observed as zero quarts. Pressure remained normal for approximately 2 mins then started to fluctuate and steadily decrease. It was determined that engine shutdown was inevitable and imminent. A normal descent to drift-down altitude was initiated. Flight control was contacted to advise of engine shutdown and intent to divert. Flight control and crew agreed that ZZZ was preferred. Engine was shut down using abnormal procedure guidance. Flight attendants and passenger were notified of the circumstances. Emergency was declared with center and divert to ZZZ was commenced. Descent and landing were normal and uneventful. Aircraft was taxied clear of runway 25R and inspected by arrf to determine suitability for continued taxi. Taxied to gate and deplaned passenger. Engine oil failed apparently due to catastrophic failure of right engine CSD seizing and throwing chunks through the CSD case. The problem was discovered through EICAS alerting; unusual cockpit indications and normal instrument monitoring. Corrective actions were in accordance with abnormal procedures checklists and normal operating checklists. Human factors considerations were textbook by training. Crew divided response: captain flew; navigated and communicated with ATC; first officer (PNF) handled checklist and communications with flight attendants and company until situation was stabilized. All appropriate actions were completed and reviewed.

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Original NASA ASRS Text

Title: B757-232 EXPERIENCES DISINTEGRATION OF R CSD WHICH RESULTS IN LOSS OF ENG OIL; ENG SHUT DOWN AND DIVERSION TO NEAREST SUITABLE ARPT.

Narrative: THE COCKPIT LIGHTS FLASHED AND THE INSTS WENT BLANK FOR APPROX 1 SECOND. EICAS AND ELECTRICAL PANEL INDICATIONS ALERTED US THAT A R GENERATOR DRIVE FAILURE HAD OCCURRED. APPROPRIATE ABNORMAL PROC WAS ACCOMPLISHED TO INCLUDE DISCONNECT OF R GENERATOR DRIVE AND STARTING APU. FLT WAS CONTINUED AS PLANNED. 5 MINS LATER; THE R ENG OIL QUANTITY WAS OBSERVED AS ZERO QUARTS. PRESSURE REMAINED NORMAL FOR APPROX 2 MINS THEN STARTED TO FLUCTUATE AND STEADILY DECREASE. IT WAS DETERMINED THAT ENG SHUTDOWN WAS INEVITABLE AND IMMINENT. A NORMAL DSCNT TO DRIFT-DOWN ALT WAS INITIATED. FLT CTL WAS CONTACTED TO ADVISE OF ENG SHUTDOWN AND INTENT TO DIVERT. FLT CTL AND CREW AGREED THAT ZZZ WAS PREFERRED. ENG WAS SHUT DOWN USING ABNORMAL PROC GUIDANCE. FLT ATTENDANTS AND PAX WERE NOTIFIED OF THE CIRCUMSTANCES. EMER WAS DECLARED WITH CTR AND DIVERT TO ZZZ WAS COMMENCED. DSCNT AND LNDG WERE NORMAL AND UNEVENTFUL. ACFT WAS TAXIED CLR OF RWY 25R AND INSPECTED BY ARRF TO DETERMINE SUITABILITY FOR CONTINUED TAXI. TAXIED TO GATE AND DEPLANED PAX. ENG OIL FAILED APPARENTLY DUE TO CATASTROPHIC FAILURE OF R ENG CSD SEIZING AND THROWING CHUNKS THROUGH THE CSD CASE. THE PROB WAS DISCOVERED THROUGH EICAS ALERTING; UNUSUAL COCKPIT INDICATIONS AND NORMAL INST MONITORING. CORRECTIVE ACTIONS WERE IN ACCORDANCE WITH ABNORMAL PROCS CHKLISTS AND NORMAL OPERATING CHKLISTS. HUMAN FACTORS CONSIDERATIONS WERE TEXTBOOK BY TRAINING. CREW DIVIDED RESPONSE: CAPT FLEW; NAVIGATED AND COMMUNICATED WITH ATC; FO (PNF) HANDLED CHKLIST AND COMS WITH FLT ATTENDANTS AND COMPANY UNTIL SITUATION WAS STABILIZED. ALL APPROPRIATE ACTIONS WERE COMPLETED AND REVIEWED.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.