Alaska B739 near Juneau on Dec 23rd 2012, engine shut down in flight

Last Update: January 2, 2013 / 20:44:23 GMT/Zulu time

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Incident Facts

Date of incident
Dec 23, 2012

Classification
Incident

Flight number
AS-731

Aircraft Registration
N319AS

Aircraft Type
Boeing 737-900

ICAO Type Designator
B739

An Alaska Airlines Boeing 737-900, registration N319AS performing flight AS-731 from Seattle,WA to Anchorage,AK (USA) with 160 passengers and 6 crew, was enroute at FL340 about 380nm south of Juneau,AK (USA) when the crew needed to shut the right hand engine (CFM56) down. The aircraft drifted down to FL200 and diverted to Juneau for a safe landing about 75 minutes after leaving FL340.

The remainder of the flight was cancelled, the passengers were rebooked onto the next flights the following morning.

On Jan 2nd 2013 The Canadian TSB reported the aircraft was about 100nm east of Sandspit,BC (Canada) when the crew declared emergency reporting the total loss of power from the right hand engine (CFM56-7B27). The aircraft diverted to Juneau for a safe landing. Maintenance determined that during flight a clamp holding two ends of an anti-ice duct between the engine tap-off and the anti-ice control valve had fallen off. The hot bleed air duct thus blew directly against the electronic engine control, which overheated and failed causing the engine to cease operation. The electronic engine control and clamp were replaced.
Aircraft Registration Data
Registration mark
N319AS
Country of Registration
United States
Date of Registration
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Manufacturer
BOEING
Aircraft Model / Type
737-990
Number of Seats
ICAO Aircraft Type
B739
Year of Manufacture
Serial Number
Aircraft Address / Mode S Code (HEX)
Engine Count
Engine Manufacturer
Engine Model
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Engine Type
Main Owner
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Incident Facts

Date of incident
Dec 23, 2012

Classification
Incident

Flight number
AS-731

Aircraft Registration
N319AS

Aircraft Type
Boeing 737-900

ICAO Type Designator
B739

This article is published under license from Avherald.com. © of text by Avherald.com.
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