A B757-200 flight crew rejected their takeoff when the right engine oil pressure dropped.

Attributes
ACN	806978
Time
Date	200810
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Aircraft 1
Controlling Facilities	tracon : pct.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
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
Experience	flight time last 90 days : 215 flight time total : 16600 flight time type : 4100
ASRS Report	806978
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 200 flight time total : 11000 flight time type : 3500
ASRS Report	806975
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : rejected takeoff
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Engine running for 26 mins. All indications normal. Upon advancing thrust; right engine oil pressure was amber 74 psi then matched left normal engine. Then dropped upon thrust increase. Aborted takeoff at 70 KTS; turned autothrottle off; called tower; kept people in their seats. After taxiing clear; shut down right engine. Supplemental information from acn 806975: oil pressure rapidly dropped when takeoff power applied. Received status message; aborted takeoff at 70 KIAS. No rejected takeoff recorded. Engine event; shut down engine; returned to gate.

Original NASA ASRS Text

Title: A B757-200 FLT CREW REJECTED THEIR TAKEOFF WHEN THE R ENG OIL PRESSURE DROPPED.

Narrative: ENG RUNNING FOR 26 MINS. ALL INDICATIONS NORMAL. UPON ADVANCING THRUST; R ENG OIL PRESSURE WAS AMBER 74 PSI THEN MATCHED L NORMAL ENG. THEN DROPPED UPON THRUST INCREASE. ABORTED TKOF AT 70 KTS; TURNED AUTOTHROTTLE OFF; CALLED TWR; KEPT PEOPLE IN THEIR SEATS. AFTER TAXIING CLR; SHUT DOWN R ENG. SUPPLEMENTAL INFO FROM ACN 806975: OIL PRESSURE RAPIDLY DROPPED WHEN TKOF PWR APPLIED. RECEIVED STATUS MESSAGE; ABORTED TKOF AT 70 KIAS. NO REJECTED TKOF RECORDED. ENG EVENT; SHUT DOWN ENG; RETURNED TO GATE.

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.