<< >> NASA ASRS Report 387930, November 1997

Flight crew of a beech 1900 airliner (BE02) shut down the right engine due to low oil pressure. Emergency was declared and ATC gave priority handling to their destination where the flight terminated. The cause of the engine problem was determined to be a failed o-ring.

Attributes
ACN	387930
Time
Date	199711
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bos
State Reference	MA
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Beech 1900
Operating Under FAR Part	Part 135
Navigation In Use	Other Other
Flight Phase	cruise other descent other
Route In Use	enroute airway : bos
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 4000 flight time type : 1500
ASRS Report	387930
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 80 flight time total : 4500 flight time type : 1400
ASRS Report	386921
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	faa : investigated Other
Supplementary
Primary Problem	Aircraft

Narrative:

We started our initial descent into bos. Low oil pressure light illuminated. The oil pressure was in yellow arc. We then reduced power. Oil pressure continued to go down. We consulted checklist and performed engine failure in-flight checks and other required checks. Landing was uneventful. Mechanics later determined an o-ring failed on the #2 engine.

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Original NASA ASRS Text

Title: FLC OF A BEECH 1900 AIRLINER (BE02) SHUT DOWN THE R ENG DUE TO LOW OIL PRESSURE. EMER WAS DECLARED AND ATC GAVE PRIORITY HANDLING TO THEIR DEST WHERE THE FLT TERMINATED. THE CAUSE OF THE ENG PROB WAS DETERMINED TO BE A FAILED O-RING.

Narrative: WE STARTED OUR INITIAL DSCNT INTO BOS. LOW OIL PRESSURE LIGHT ILLUMINATED. THE OIL PRESSURE WAS IN YELLOW ARC. WE THEN REDUCED PWR. OIL PRESSURE CONTINUED TO GO DOWN. WE CONSULTED CHKLIST AND PERFORMED ENG FAILURE INFLT CHKS AND OTHER REQUIRED CHKS. LNDG WAS UNEVENTFUL. MECHS LATER DETERMINED AN O-RING FAILED ON THE #2 ENG.

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.