<< >> NASA ASRS Report 635851, November 2004

On final for landing in rain and cumulonimbus, a B737 left engine seized. The aircraft was configured for a single engine landing.

Attributes
ACN	635851
Time
Date	200411
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 2000
Environment
Flight Conditions	IMC
Weather Elements	Rain Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 250 flight time total : 22000 flight time type : 8500
ASRS Report	635851
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 225 flight time total : 10500 flight time type : 7000
ASRS Report	635852
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : engine stopped
Resolutory Action	flight crew : landed in emergency condition
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On 8 mi final with severe thunderstorm, all quadrants and WX approximately 7 mi overcast, 1.5 mi visibility, moderate rain, the #1 engine indicated high vibration (in excess of 5 units) and the egt rapidly rose in excess of 710 degrees C. The #1 engine then seized. No fire warning occurred. Declared emergency, completed abnormal procedure (engine failure in landing confign) and configured aircraft for a single engine landing (F15, reference +15 KTS, flap inhibited). Completed uneventful approach and landing to wet runway in moderate rain. After landing, the fire commander thought he possibly observed 'sparks' in the #1 engine and shot retardant into the engine as a precaution. No other fire indications or hazardous conditions were observed. Elected not to evacuate/evacuation and taxied to gate uneventfully when cleared by the fire commander.

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Original NASA ASRS Text

Title: ON FINAL FOR LNDG IN RAIN AND CUMULONIMBUS, A B737 L ENG SEIZED. THE ACFT WAS CONFIGURED FOR A SINGLE ENG LNDG.

Narrative: ON 8 MI FINAL WITH SEVERE TSTM, ALL QUADRANTS AND WX APPROX 7 MI OVCST, 1.5 MI VISIBILITY, MODERATE RAIN, THE #1 ENG INDICATED HIGH VIBRATION (IN EXCESS OF 5 UNITS) AND THE EGT RAPIDLY ROSE IN EXCESS OF 710 DEGS C. THE #1 ENG THEN SEIZED. NO FIRE WARNING OCCURRED. DECLARED EMER, COMPLETED ABNORMAL PROC (ENG FAILURE IN LNDG CONFIGN) AND CONFIGURED ACFT FOR A SINGLE ENG LNDG (F15, REF +15 KTS, FLAP INHIBITED). COMPLETED UNEVENTFUL APCH AND LNDG TO WET RWY IN MODERATE RAIN. AFTER LNDG, THE FIRE COMMANDER THOUGHT HE POSSIBLY OBSERVED 'SPARKS' IN THE #1 ENG AND SHOT RETARDANT INTO THE ENG AS A PRECAUTION. NO OTHER FIRE INDICATIONS OR HAZARDOUS CONDITIONS WERE OBSERVED. ELECTED NOT TO EVAC AND TAXIED TO GATE UNEVENTFULLY WHEN CLRED BY THE FIRE COMMANDER.

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.