Air carrier medium large transport operating with 1 engine gen inoperative and using APU for back up lost the APU at FL330 and when unable to restart diverted to an alternate.

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Attributes
ACN	192632
Time
Date	199110
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : hln
State Reference	MT
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute airway : zlc
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 6000 flight time type : 1500
ASRS Report	192632
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Departed pdx with #1 generator placarded inoperative. While cruising at FL330 APU flamed out losing APU generator and electrical fuses crossed tied to #2 generator. APU would not restart and we did not desire to descend on present course due to WX. Checked WX at several possible diversion airports hln was selected 100 NM north of present position. Hln was VFR. Company dispatch was notified and they concurred. Flight completed and landing at hln without further complications.

Original NASA ASRS Text

Title: ACR MLG OPERATING WITH 1 ENG GEN INOP AND USING APU FOR BACK UP LOST THE APU AT FL330 AND WHEN UNABLE TO RESTART DIVERTED TO AN ALTERNATE.

Narrative: DEPARTED PDX WITH #1 GENERATOR PLACARDED INOP. WHILE CRUISING AT FL330 APU FLAMED OUT LOSING APU GENERATOR AND ELECTRICAL FUSES CROSSED TIED TO #2 GENERATOR. APU WOULD NOT RESTART AND WE DID NOT DESIRE TO DSND ON PRESENT COURSE DUE TO WX. CHKED WX AT SEVERAL POSSIBLE DIVERSION ARPTS HLN WAS SELECTED 100 NM N OF PRESENT POS. HLN WAS VFR. COMPANY DISPATCH WAS NOTIFIED AND THEY CONCURRED. FLT COMPLETED AND LNDG AT HLN WITHOUT FURTHER COMPLICATIONS.

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.