<< >> NASA ASRS Report 408331, July 1998

A DC9-30 in cruise at flight level diverted due to a left engine oil strainer clog light illuminated caused by a failed oil strainer clog switch.

Attributes
ACN	408331
Time
Date	199807
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : atl
State Reference	GA
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl tower : pit
Operator	common carrier : air carrier
Make Model Name	DC-9 30
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude cruise other other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 300 flight time total : 20000 flight time type : 14000
ASRS Report	408331
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Made a precautionary landing due to an annunciator light oil strainer clogged light came on. Landing without incident (normal) atl. Going to mke from mco. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a DC9-30 with P&west JT8D-9 engines and on landing the mechanics pulled the oil screen out and found some carbon particles but no metal. The reporter said the mechanics found the oil strainer clog switch had failed closed causing a false warning. The reporter stated the engine was not shut down during the diversion to atl.

Related reports:

• A B767-300 diverted after a landing gear green light illumin...
• A dash 8 flight crew noticed a master warning smoke light il...
• A SF340's flight idle stop open light illuminated after take...
• A saab 340 in cruise shut down the right engine and diverted...
• A challenger 601 in cruse at FL400 diverted and shutdown #2 ...
• A CE560 flight crew performed and emergency descent and dive...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A DC9-30 IN CRUISE AT FLT LEVEL DIVERTED DUE TO A L ENG OIL STRAINER CLOG LIGHT ILLUMINATED CAUSED BY A FAILED OIL STRAINER CLOG SWITCH.

Narrative: MADE A PRECAUTIONARY LNDG DUE TO AN ANNUNCIATOR LIGHT OIL STRAINER CLOGGED LIGHT CAME ON. LNDG WITHOUT INCIDENT (NORMAL) ATL. GOING TO MKE FROM MCO. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A DC9-30 WITH P&W JT8D-9 ENGS AND ON LNDG THE MECHS PULLED THE OIL SCREEN OUT AND FOUND SOME CARBON PARTICLES BUT NO METAL. THE RPTR SAID THE MECHS FOUND THE OIL STRAINER CLOG SWITCH HAD FAILED CLOSED CAUSING A FALSE WARNING. THE RPTR STATED THE ENG WAS NOT SHUT DOWN DURING THE DIVERSION TO ATL.

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.