Air carrier medium large transport temporary loss of engine power at FL330. Power restored after des...

Attributes
ACN	158347
Time
Date	199009
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bna
State Reference	TN
Altitude	msl bound lower : 29000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 118 flight time total : 14865 flight time type : 265
ASRS Report	158347
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 230 flight time total : 9000 flight time type : 600
ASRS Report	158079
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	aircraft : equipment problem dissipated flight crew : declared emergency
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Medium large transport was in level cruise flight at FL330 approximately 45 NM southeast of bna VORTAC. Autoplt was engaged. A power loss on the right engine occurred. The engine continued to decelerate. Throttle movement had no effect on engine operation. The decision was made to divert to bna and ATC was notified of the emergency. As the engine failure/shutdown procedure was in progress, engine power was restored. All engine indications and systems returned to normal. At this time the aircraft was at FL290. Company dispatcher was advised of previous problem and present corrected condition. Joint captain/dispatcher decision was made to divert to atl, atl being more desirable due to pilot's familiarization with airport. Atl NOTAMS and WX reports were on board the aircraft. (Atl: clear 25, wind 2910.) ATC was notified that normal engine power was restored and that the emergency condition no longer existed. Clearance was requested and received to proceed to and land at atl. The right engine operated normally for the remainder of the flight, which proceeded to atl with no additional problems.

Original NASA ASRS Text

Title: ACR MLG TEMPORARY LOSS OF ENGINE POWER AT FL330. POWER RESTORED AFTER DESCENT TO FL290.

Narrative: MLG WAS IN LEVEL CRUISE FLT AT FL330 APPROX 45 NM SE OF BNA VORTAC. AUTOPLT WAS ENGAGED. A PWR LOSS ON THE RIGHT ENG OCCURRED. THE ENG CONTINUED TO DECELERATE. THROTTLE MOVEMENT HAD NO EFFECT ON ENG OPERATION. THE DECISION WAS MADE TO DIVERT TO BNA AND ATC WAS NOTIFIED OF THE EMER. AS THE ENG FAILURE/SHUTDOWN PROC WAS IN PROGRESS, ENG PWR WAS RESTORED. ALL ENG INDICATIONS AND SYSTEMS RETURNED TO NORMAL. AT THIS TIME THE ACFT WAS AT FL290. COMPANY DISPATCHER WAS ADVISED OF PREVIOUS PROB AND PRESENT CORRECTED CONDITION. JOINT CAPT/DISPATCHER DECISION WAS MADE TO DIVERT TO ATL, ATL BEING MORE DESIRABLE DUE TO PLT'S FAMILIARIZATION WITH ARPT. ATL NOTAMS AND WX RPTS WERE ON BOARD THE ACFT. (ATL: CLR 25, WIND 2910.) ATC WAS NOTIFIED THAT NORMAL ENG PWR WAS RESTORED AND THAT THE EMER CONDITION NO LONGER EXISTED. CLRNC WAS REQUESTED AND RECEIVED TO PROCEED TO AND LAND AT ATL. THE RIGHT ENG OPERATED NORMALLY FOR THE REMAINDER OF THE FLT, WHICH PROCEEDED TO ATL WITH NO ADDITIONAL PROBS.

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.

Air carrier medium large transport temporary loss of engine power at FL330. Power restored after descent to FL290.