Air carrier medium large transport engine failure during climb.

Attributes
ACN	194569
Time
Date	199111
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	msl bound lower : 10700 msl bound upper : 10700
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : pit
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 20000
ASRS Report	194569
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable other
Consequence	other
Supplementary
Primary Problem	Aircraft

Narrative:

On climb out, felt 'bump' and heard 'pop.' observed #1 engine unspooling. The ignition switch was turned to 'override' and #1 throttle retarded. Engine spooled up to flight idle. Declared an emergency to pit departure control, was cleared for a visual traffic pattern to runway 10L at pit. Left #1 in flight idle for #1 generator power as all engine parameters appeared normal. Started APU. Completed all normal and emergency procedures. Captain assumed flying duties and accomplished a normal 28 degree flap landing. Shut down #1 engine upon leaving 10L and taxied to gate.

Original NASA ASRS Text

Title: ACR MLG ENG FAILURE DURING CLB.

Narrative: ON CLB OUT, FELT 'BUMP' AND HEARD 'POP.' OBSERVED #1 ENG UNSPOOLING. THE IGNITION SWITCH WAS TURNED TO 'OVERRIDE' AND #1 THROTTLE RETARDED. ENG SPOOLED UP TO FLT IDLE. DECLARED AN EMER TO PIT DEP CTL, WAS CLRED FOR A VISUAL TFC PATTERN TO RWY 10L AT PIT. LEFT #1 IN FLT IDLE FOR #1 GENERATOR PWR AS ALL ENG PARAMETERS APPEARED NORMAL. STARTED APU. COMPLETED ALL NORMAL AND EMER PROCS. CAPT ASSUMED FLYING DUTIES AND ACCOMPLISHED A NORMAL 28 DEG FLAP LNDG. SHUT DOWN #1 ENG UPON LEAVING 10L AND TAXIED TO GATE.

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.