<< >> NASA ASRS Report 603745, December 2003

A B737-200 at leveloff at FL220 declared an emergency due to #2 engine in-flight shutdown, caused by N1 and N2 engine overspd limits exceeded.

Attributes
ACN	603745
Time
Date	200312
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 22000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz1.artcc
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : vacating altitude climbout : intermediate altitude
Route In Use	enroute airway : j4.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 13780 flight time type : 6500
ASRS Report	603745
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : #2 engine indications other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On climb out from ZZZ en route to ZZZ1, the autothrottles disengaged. I then noticed that the #2 thrust lever was at idle with all engine instruments indicating full power. N1, N2, and egt were in the caution range. After leveloff at FL220, the non-normal checklist for engine limit/surge/stall was accomplished and the #2 engine shutdown. I made the decision to continue to ZZZ1 based on runway length available, familiarity with the airport, and crash fire rescue equipment capability, rather than spiral down and land at ZZZ2. Approximately 20 mins later, after declaring an emergency with ATC and informing company maintenance and dispatch via ACARS, an uneventful single engine landing was accomplished in ZZZ1. The engine was subsequently removed and is being analyzed for cause of malfunction at this time.

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Original NASA ASRS Text

Title: A B737-200 AT LEVELOFF AT FL220 DECLARED AN EMER DUE TO #2 ENG INFLT SHUTDOWN, CAUSED BY N1 AND N2 ENG OVERSPD LIMITS EXCEEDED.

Narrative: ON CLBOUT FROM ZZZ ENRTE TO ZZZ1, THE AUTOTHROTTLES DISENGAGED. I THEN NOTICED THAT THE #2 THRUST LEVER WAS AT IDLE WITH ALL ENG INSTS INDICATING FULL PWR. N1, N2, AND EGT WERE IN THE CAUTION RANGE. AFTER LEVELOFF AT FL220, THE NON-NORMAL CHKLIST FOR ENG LIMIT/SURGE/STALL WAS ACCOMPLISHED AND THE #2 ENG SHUTDOWN. I MADE THE DECISION TO CONTINUE TO ZZZ1 BASED ON RWY LENGTH AVAILABLE, FAMILIARITY WITH THE ARPT, AND CFR CAPABILITY, RATHER THAN SPIRAL DOWN AND LAND AT ZZZ2. APPROX 20 MINS LATER, AFTER DECLARING AN EMER WITH ATC AND INFORMING COMPANY MAINT AND DISPATCH VIA ACARS, AN UNEVENTFUL SINGLE ENG LNDG WAS ACCOMPLISHED IN ZZZ1. THE ENG WAS SUBSEQUENTLY REMOVED AND IS BEING ANALYZED FOR CAUSE OF MALFUNCTION AT THIS TIME.

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.