B737-300 crew had #2 generator drop off line and the CSD low oil pressure light illuminated.

Attributes
ACN	538493
Time
Date	200202
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 1400
Aircraft 1
Controlling Facilities	tracon : c90.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 6000
ASRS Report	538493
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : published procedure non adherence : far non adherence : company policies other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : csd low oil pressure light other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist flight crew : landed as precaution flight crew : diverted to another airport none taken : detected after the fact other
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : inspection
Supplementary
Problem Areas	Company Flight Crew Human Performance Aircraft
Primary Problem	Company

Narrative:

Departed ord-den runway 32L (T10). At approximately 1400 ft MSL, #2 generator tripped off line and #2 CSD low oil pressure light illuminated. Unable to return generator on-line. After clean-up, advised ATC that we may need to return to ord for mechanical and wanted to hold to work on problem. I was PNF. I ran irregular checklist and opted to contact dispatch and maintenance control as low oil pressure light was flickering on and off and CSD rise was not in yellow arc, prior to disconnecting CSD. While waiting to talk with company, I was able to power #2 generator off the APU. After discussing problem with dispatch, I elected to return to ord. #2 CSD was disconnected without a problem. Flight attendants and passenger were notified of problem and decision to return to ord. After burning fuel to legal landing weight, we landed on runway 27L without incident. Ord maintenance said CSD oil level was very low and svced/ran engine and flight continued to den without incident.

Original NASA ASRS Text

Title: B737-300 CREW HAD #2 GENERATOR DROP OFF LINE AND THE CSD LOW OIL PRESSURE LIGHT ILLUMINATED.

Narrative: DEPARTED ORD-DEN RWY 32L (T10). AT APPROX 1400 FT MSL, #2 GENERATOR TRIPPED OFF LINE AND #2 CSD LOW OIL PRESSURE LIGHT ILLUMINATED. UNABLE TO RETURN GENERATOR ON-LINE. AFTER CLEAN-UP, ADVISED ATC THAT WE MAY NEED TO RETURN TO ORD FOR MECHANICAL AND WANTED TO HOLD TO WORK ON PROB. I WAS PNF. I RAN IRREGULAR CHKLIST AND OPTED TO CONTACT DISPATCH AND MAINT CTL AS LOW OIL PRESSURE LIGHT WAS FLICKERING ON AND OFF AND CSD RISE WAS NOT IN YELLOW ARC, PRIOR TO DISCONNECTING CSD. WHILE WAITING TO TALK WITH COMPANY, I WAS ABLE TO PWR #2 GENERATOR OFF THE APU. AFTER DISCUSSING PROB WITH DISPATCH, I ELECTED TO RETURN TO ORD. #2 CSD WAS DISCONNECTED WITHOUT A PROB. FLT ATTENDANTS AND PAX WERE NOTIFIED OF PROB AND DECISION TO RETURN TO ORD. AFTER BURNING FUEL TO LEGAL LNDG WT, WE LANDED ON RWY 27L WITHOUT INCIDENT. ORD MAINT SAID CSD OIL LEVEL WAS VERY LOW AND SVCED/RAN ENG AND FLT CONTINUED TO DEN WITHOUT INCIDENT.

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.