An L1011 in cruise at FL310 diverted due to a failed idg.

Attributes
ACN	502502
Time
Date	200102
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : row.airport
State Reference	NM
Altitude	msl single value : 31000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab.artcc artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	L-1011 Tri-Star All Series
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	enroute airway : j65.airway
Flight Plan	IFR
Person 1
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp pilot : multi engine
Experience	flight time last 90 days : 300 flight time total : 7000 flight time type : 900
ASRS Report	502502
Person 2
Function	flight attendant : on duty flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : low press warning lt. other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Chart Or Publication Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

In cruise ZZZ-hnl at FL310, early in flight, had cycling low pressure light on #2 generator idg. After a while this became steady and the #2 generator dropped off line. Conferred with ZZZ maintenance and followed pom abnormal procedures. Maintenance and captain agreed best course to stop in lax to effect repairs. Backed up by guidance in MEL for 3 generator outbound ocean crossing. Overweight landing made with no further incident. Clearance made with ATC and ZZZ notified. Maintenance stated metal particles found in idg and lines.

Original NASA ASRS Text

Title: AN L1011 IN CRUISE AT FL310 DIVERTED DUE TO A FAILED IDG.

Narrative: IN CRUISE ZZZ-HNL AT FL310, EARLY IN FLT, HAD CYCLING LOW PRESSURE LIGHT ON #2 GENERATOR IDG. AFTER A WHILE THIS BECAME STEADY AND THE #2 GENERATOR DROPPED OFF LINE. CONFERRED WITH ZZZ MAINT AND FOLLOWED POM ABNORMAL PROCS. MAINT AND CAPT AGREED BEST COURSE TO STOP IN LAX TO EFFECT REPAIRS. BACKED UP BY GUIDANCE IN MEL FOR 3 GENERATOR OUTBOUND OCEAN XING. OVERWT LNDG MADE WITH NO FURTHER INCIDENT. CLRNC MADE WITH ATC AND ZZZ NOTIFIED. MAINT STATED METAL PARTICLES FOUND IN IDG AND LINES.

Data retrieved from NASA's ASRS site as of July 2007 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.