A B757-200 flight crew of a major air carrier has the right engine surge followed by compressor stalls during climb out. They declare an emergency, divert and land and the engine is changed.

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Attributes
ACN	363851
Time
Date	199703
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dca airport : iad
State Reference	DC
Altitude	agl bound lower : 1000 agl bound upper : 5000
Environment
Flight Conditions	IMC
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : iad tracon : dca tower : iad tower : ngo
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude landing other other
Route In Use	departure other departure sid : sid enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 20000 flight time type : 900
ASRS Report	363851
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Engine surge/backfire at 1000 ft AGL. At 5000 ft more surges, retarded throttle to idle, declared emergency and diverted to iad. At iad determined engine change necessary. Callback conversation with reporter revealed the following information: this B757-200 captain said that the initial surging and compressor stalls started at 1500 ft or 'just about the time we were going to climb power.' he said that the right engine settled down, but at 5000 ft the engine began to compressor stall again so he retarded the engine to idle power and diverted to iad. The engine operated normally at idle so he left it running to supply electrical, hydraulics and other system. After landing, maintenance personnel determined that an engine change was necessary. The technicians were not sure, at that time, of the causes of the compressor stalls. The captain said that he has since then talked to the maintenance suprvs, but still has not been told what caused the problem.

Original NASA ASRS Text

Title: A B757-200 FLC OF A MAJOR ACR HAS THE R ENG SURGE FOLLOWED BY COMPRESSOR STALLS DURING CLBOUT. THEY DECLARE AN EMER, DIVERT AND LAND AND THE ENG IS CHANGED.

Narrative: ENG SURGE/BACKFIRE AT 1000 FT AGL. AT 5000 FT MORE SURGES, RETARDED THROTTLE TO IDLE, DECLARED EMER AND DIVERTED TO IAD. AT IAD DETERMINED ENG CHANGE NECESSARY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS B757-200 CAPT SAID THAT THE INITIAL SURGING AND COMPRESSOR STALLS STARTED AT 1500 FT OR 'JUST ABOUT THE TIME WE WERE GOING TO CLB PWR.' HE SAID THAT THE R ENG SETTLED DOWN, BUT AT 5000 FT THE ENG BEGAN TO COMPRESSOR STALL AGAIN SO HE RETARDED THE ENG TO IDLE PWR AND DIVERTED TO IAD. THE ENG OPERATED NORMALLY AT IDLE SO HE LEFT IT RUNNING TO SUPPLY ELECTRICAL, HYDS AND OTHER SYS. AFTER LNDG, MAINT PERSONNEL DETERMINED THAT AN ENG CHANGE WAS NECESSARY. THE TECHNICIANS WERE NOT SURE, AT THAT TIME, OF THE CAUSES OF THE COMPRESSOR STALLS. THE CAPT SAID THAT HE HAS SINCE THEN TALKED TO THE MAINT SUPRVS, BUT STILL HAS NOT BEEN TOLD WHAT CAUSED THE PROB.

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.