An E-120 performs a precautionary return land and experiences an emergency declared after an in-flig...

Attributes
ACN	303074
Time
Date	199504
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : cle
State Reference	OH
Altitude	msl bound lower : 15000 msl bound upper : 15000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Brasilia EMB-120 All Series
Operating Under FAR Part	Part 135
Flight Phase	cruise other other other
Route In Use	enroute airway : zob
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 270 flight time total : 4100 flight time type : 800
ASRS Report	303074
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

While on an IFR flight plan from cle to cvg, we noticed the right engine's oil pressure gauge was fluctuating on the border of the green and yellow ranges. After contacting our operations we elected to opt for the conservative action of returning to cle. We monitored the gauge, noting if it was just a bad gauge, or not. All other engine parameters were normal. Once on cle approach control the gauge's needle was straddling the yellow/red range. Our aircraft manual instructs us to shut down the engine if the oil pressure gauge is in the red, and so we did. I notified ATC of our situation, and declared an emergency. We landed without incident, and passenger were deplaned promptly and without any problems. The aircraft was an emb-120.

Original NASA ASRS Text

Title: AN E-120 PERFORMS A PRECAUTIONARY RETURN LAND AND EXPERIENCES AN EMER DECLARED AFTER AN INFLT ENG SHUTDOWN.

Narrative: WHILE ON AN IFR FLT PLAN FROM CLE TO CVG, WE NOTICED THE R ENG'S OIL PRESSURE GAUGE WAS FLUCTUATING ON THE BORDER OF THE GREEN AND YELLOW RANGES. AFTER CONTACTING OUR OPS WE ELECTED TO OPT FOR THE CONSERVATIVE ACTION OF RETURNING TO CLE. WE MONITORED THE GAUGE, NOTING IF IT WAS JUST A BAD GAUGE, OR NOT. ALL OTHER ENG PARAMETERS WERE NORMAL. ONCE ON CLE APCH CTL THE GAUGE'S NEEDLE WAS STRADDLING THE YELLOW/RED RANGE. OUR ACFT MANUAL INSTRUCTS US TO SHUT DOWN THE ENG IF THE OIL PRESSURE GAUGE IS IN THE RED, AND SO WE DID. I NOTIFIED ATC OF OUR SIT, AND DECLARED AN EMER. WE LANDED WITHOUT INCIDENT, AND PAX WERE DEPLANED PROMPTLY AND WITHOUT ANY PROBS. THE ACFT WAS AN EMB-120.

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.

An E-120 performs a precautionary return land and experiences an emergency declared after an in-flight engine shutdown.