Both engine low oil pressure lights on a B737-800 illuminated on takeoff with oil quantity in the normal range. An emergency was declared with an immediate return to land.

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Attributes
ACN	792370
Time
Date	200806
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzzz.airport
State Reference	FO
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	792370
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	792590
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On departure climbing through 1500 ft off runway xx left engine oil low pressure light illuminated followed by the right engine low pressure light. Oil quantity indicator showed 4 quarts in the left engine and 7 quarts for the right engine. We leveled off at 8000 ft and slowed to flaps up speed of 205 KTS and made a right teardrop back for an overweight landing 156000 pounds on runway xx back to ZZZZ after declaring an emergency.

Original NASA ASRS Text

Title: BOTH ENG LOW OIL PRESSURE LIGHTS ON A B737-800 ILLUMINATED ON TKOF WITH OIL QUANTITY IN THE NORMAL RANGE. AN EMER WAS DECLARED WITH AN IMMEDIATE RETURN TO LAND.

Narrative: ON DEP CLBING THROUGH 1500 FT OFF RWY XX L ENG OIL LOW PRESSURE LIGHT ILLUMINATED FOLLOWED BY THE R ENG LOW PRESSURE LIGHT. OIL QUANTITY INDICATOR SHOWED 4 QUARTS IN THE L ENG AND 7 QUARTS FOR THE R ENG. WE LEVELED OFF AT 8000 FT AND SLOWED TO FLAPS UP SPD OF 205 KTS AND MADE A R TEARDROP BACK FOR AN OVERWT LNDG 156000 LBS ON RWY XX BACK TO ZZZZ AFTER DECLARING AN EMER.

Data retrieved from NASA's ASRS site as of May 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.