Low EPR indications on takeoff and in initial climb motivated flight crew to return land.

Attributes
ACN	192088
Time
Date	199110
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	msl bound lower : 5000 msl bound upper : 5000
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 : initial climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 75 flight time total : 8700 flight time type : 55
ASRS Report	192088
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Flight pit-tys. On takeoff, aircraft left engine egt in yellow, however, rated takeoff thrust was achieved. When throttles were advanced to climb power, egt slowly went into yellow arc and maximum available climb EPR was approximately 1.82. Normal should have been 1.94 EPR (approximately). Left throttle was ahead of right by approximately 2 inches at high power settings. Returned to pit without event.

Original NASA ASRS Text

Title: LOW EPR INDICATIONS ON TKOF AND IN INITIAL CLB MOTIVATED FLC TO RETURN LAND.

Narrative: FLT PIT-TYS. ON TKOF, ACFT L ENG EGT IN YELLOW, HOWEVER, RATED TKOF THRUST WAS ACHIEVED. WHEN THROTTLES WERE ADVANCED TO CLB PWR, EGT SLOWLY WENT INTO YELLOW ARC AND MAX AVAILABLE CLB EPR WAS APPROX 1.82. NORMAL SHOULD HAVE BEEN 1.94 EPR (APPROX). L THROTTLE WAS AHEAD OF R BY APPROX 2 INCHES AT HIGH PWR SETTINGS. RETURNED TO PIT WITHOUT EVENT.

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.