Air carrier medium large transport engine failure due to ice ingestion from leaking lavatory drain.

Attributes
ACN	92013
Time
Date	198807
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : clt
State Reference	NC
Altitude	msl bound lower : 37000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute airway : zdc
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 14000 flight time type : 3000
ASRS Report	92013
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable
Consequence	faa : investigated
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

#3 engine failed. Suspect ice frozen ball from forward lavatory drainage area was ingested when it broke loose from leaking drain. Problem handled per emergency checklist. To prevent recurrence: better preflting of forward lavatory drain (external) or re-engineer drain area.

Original NASA ASRS Text

Title: ACR MLG ENGINE FAILURE DUE TO ICE INGESTION FROM LEAKING LAVATORY DRAIN.

Narrative: #3 ENG FAILED. SUSPECT ICE FROZEN BALL FROM FORWARD LAVATORY DRAINAGE AREA WAS INGESTED WHEN IT BROKE LOOSE FROM LEAKING DRAIN. PROB HANDLED PER EMER CHKLIST. TO PREVENT RECURRENCE: BETTER PREFLTING OF FORWARD LAVATORY DRAIN (EXTERNAL) OR RE-ENGINEER DRAIN AREA.

Data retrieved from NASA's ASRS site as of August 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.