A B737-300 crew observed an engine with zero oil pressure during takeoff. Takeoff rejected.

Attributes
ACN	639096
Time
Date	200412
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den.airport
State Reference	CO
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	639096
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : rejected takeoff
Consequence	other Other
Supplementary
Problem Areas	Flight Crew Human Performance Maintenance Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

On the takeoff roll, all engine parameters were normal as the aircraft accelerated down the runway and seemed normal as the 80 KT call was announced. I scanned the engine instruments and saw the #2 oil pressure at or near zero and announced this to the first officer and aborted the takeoff at approximately 90-100 KIAS. The rejected takeoff function of the autobrakes activated and I deactivated them a few seconds later to avoid heating up the brakes too much. We exited the runway, shut the engine down and taxied back to the gate with all the calls to station operations, dispatch, maintenance, etc. At the gate, the first officer found the circuit breaker for the #2 engine oil pressure was popped and it probably did so on the takeoff roll since we had proper indications on start-up and taxi out. We swapped airplanes and continued.

Original NASA ASRS Text

Title: A B737-300 CREW OBSERVED AN ENG WITH ZERO OIL PRESSURE DURING TKOF. TKOF REJECTED.

Narrative: ON THE TKOF ROLL, ALL ENG PARAMETERS WERE NORMAL AS THE ACFT ACCELERATED DOWN THE RWY AND SEEMED NORMAL AS THE 80 KT CALL WAS ANNOUNCED. I SCANNED THE ENG INSTS AND SAW THE #2 OIL PRESSURE AT OR NEAR ZERO AND ANNOUNCED THIS TO THE FO AND ABORTED THE TKOF AT APPROX 90-100 KIAS. THE REJECTED TKOF FUNCTION OF THE AUTOBRAKES ACTIVATED AND I DEACTIVATED THEM A FEW SECONDS LATER TO AVOID HEATING UP THE BRAKES TOO MUCH. WE EXITED THE RWY, SHUT THE ENG DOWN AND TAXIED BACK TO THE GATE WITH ALL THE CALLS TO STATION OPS, DISPATCH, MAINT, ETC. AT THE GATE, THE FO FOUND THE CIRCUIT BREAKER FOR THE #2 ENG OIL PRESSURE WAS POPPED AND IT PROBABLY DID SO ON THE TKOF ROLL SINCE WE HAD PROPER INDICATIONS ON START-UP AND TAXI OUT. WE SWAPPED AIRPLANES AND CONTINUED.

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.