A B727 flight crew returns and lands when the #1 engine is suspected of a malfunction at slc, ut.

Attributes
ACN	456018
Time
Date	199911
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : slc.airport
State Reference	UT
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Flight Phase	climbout : takeoff
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 210 flight time total : 5500 flight time type : 1500
ASRS Report	456018
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : landed in emergency condition flight crew : declared emergency other
Consequence	other other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

During takeoff roll at approximately 120 KTS, the #1 engine EPR dropped. It was accompanied by popping sounds heard by aft flight attendants and low bleed air duct pressure from the engine. At cruise power settings, engine indications appeared normal. After discussions with company maintenance, it was determined a return to slc was the best course of action. We dumped fuel to get down to normal landing weight. After uneventful landing we turned the aircraft over to maintenance. Supplemental information from acn 455752: fuel was dumped to maximum landing weight, emergency was declared, and an uneventful landing made.

Original NASA ASRS Text

Title: A B727 FLC RETURNS AND LANDS WHEN THE #1 ENG IS SUSPECTED OF A MALFUNCTION AT SLC, UT.

Narrative: DURING TKOF ROLL AT APPROX 120 KTS, THE #1 ENG EPR DROPPED. IT WAS ACCOMPANIED BY POPPING SOUNDS HEARD BY AFT FLT ATTENDANTS AND LOW BLEED AIR DUCT PRESSURE FROM THE ENG. AT CRUISE PWR SETTINGS, ENG INDICATIONS APPEARED NORMAL. AFTER DISCUSSIONS WITH COMPANY MAINT, IT WAS DETERMINED A RETURN TO SLC WAS THE BEST COURSE OF ACTION. WE DUMPED FUEL TO GET DOWN TO NORMAL LNDG WT. AFTER UNEVENTFUL LNDG WE TURNED THE ACFT OVER TO MAINT. SUPPLEMENTAL INFO FROM ACN 455752: FUEL WAS DUMPED TO MAX LNDG WT, EMER WAS DECLARED, AND AN UNEVENTFUL LNDG MADE.

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.