In-flight emergency declared. Diversion to alternate.

Attributes
ACN	319695
Time
Date	199510
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mci
State Reference	MO
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other other other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 150 flight time total : 24000 flight time type : 1200
ASRS Report	319695
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 other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

At 35000 ft in cruise, aircraft was noticed to be out of trim with autoplt indications. Engine indications for right engine were normal EPR, but all other engine gauges for right engine confirmed engine was slowly losing thrust. Consulted with company for troubleshooting ideas, but nothing helped. With thrust continuing to deteriorate we diverted to stl, as current mci WX was reported as 1 overcast 1/4 mi. Flight was canceled. Maintenance subsequently found a leak in the 'P-1' line from the engine probe. In the interest of safety an emergency was declared, and the equipment was standing by.

Original NASA ASRS Text

Title: INFLT EMER DECLARED. DIVERSION TO ALTERNATE.

Narrative: AT 35000 FT IN CRUISE, ACFT WAS NOTICED TO BE OUT OF TRIM WITH AUTOPLT INDICATIONS. ENG INDICATIONS FOR R ENG WERE NORMAL EPR, BUT ALL OTHER ENG GAUGES FOR R ENG CONFIRMED ENG WAS SLOWLY LOSING THRUST. CONSULTED WITH COMPANY FOR TROUBLESHOOTING IDEAS, BUT NOTHING HELPED. WITH THRUST CONTINUING TO DETERIORATE WE DIVERTED TO STL, AS CURRENT MCI WX WAS RPTED AS 1 OVCST 1/4 MI. FLT WAS CANCELED. MAINT SUBSEQUENTLY FOUND A LEAK IN THE 'P-1' LINE FROM THE ENG PROBE. IN THE INTEREST OF SAFETY AN EMER WAS DECLARED, AND THE EQUIP WAS STANDING BY.

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.