Mdt aircraft has engine oil pressure warning light activate. Takeoff was aborted. Full runup was accomplished with no adverse indications. Second takeoff was fine until about 1200 ft when there was a fluctuation of the #2 engine pressure gauge. Return land.

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Attributes
ACN	343656
Time
Date	199608
Day	Tue
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : eyw
State Reference	FL
Altitude	agl bound lower : 1200 agl bound upper : 1200
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : eyw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : takeoff climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 250 flight time total : 19000 flight time type : 8000
ASRS Report	343656
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On takeoff roll, just below V1/V2, there was a momentary illumination of the #2 engine oil pressure warning light. We aborted the takeoff immediately. We taxied clear of the runway. Oil pressure gauge appeared normal. On the taxiway we performed a full power engine run and closely monitored the oil pressure. All engine readings and indications were normal and no caution or warning light illuminated. On the assumption that the momentary warning light had been an erroneous indication and as there did not appear to be any problem with the oil pressure we proceeded with a second takeoff. All system were normal and no warning lights during the takeoff and initial climb. Out of about 1200 ft AGL we noticed a slight fluctuation of the #2 engine pressure gauge. After seeing this oil pressure flux, we returned for a precautionary landing without further incident.

Original NASA ASRS Text

Title: MDT ACFT HAS ENG OIL PRESSURE WARNING LIGHT ACTIVATE. TKOF WAS ABORTED. FULL RUNUP WAS ACCOMPLISHED WITH NO ADVERSE INDICATIONS. SECOND TKOF WAS FINE UNTIL ABOUT 1200 FT WHEN THERE WAS A FLUCTUATION OF THE #2 ENG PRESSURE GAUGE. RETURN LAND.

Narrative: ON TKOF ROLL, JUST BELOW V1/V2, THERE WAS A MOMENTARY ILLUMINATION OF THE #2 ENG OIL PRESSURE WARNING LIGHT. WE ABORTED THE TKOF IMMEDIATELY. WE TAXIED CLR OF THE RWY. OIL PRESSURE GAUGE APPEARED NORMAL. ON THE TXWY WE PERFORMED A FULL PWR ENG RUN AND CLOSELY MONITORED THE OIL PRESSURE. ALL ENG READINGS AND INDICATIONS WERE NORMAL AND NO CAUTION OR WARNING LIGHT ILLUMINATED. ON THE ASSUMPTION THAT THE MOMENTARY WARNING LIGHT HAD BEEN AN ERRONEOUS INDICATION AND AS THERE DID NOT APPEAR TO BE ANY PROB WITH THE OIL PRESSURE WE PROCEEDED WITH A SECOND TKOF. ALL SYS WERE NORMAL AND NO WARNING LIGHTS DURING THE TKOF AND INITIAL CLB. OUT OF ABOUT 1200 FT AGL WE NOTICED A SLIGHT FLUCTUATION OF THE #2 ENG PRESSURE GAUGE. AFTER SEEING THIS OIL PRESSURE FLUX, WE RETURNED FOR A PRECAUTIONARY LNDG WITHOUT FURTHER 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.