DC9 crew had compressor stall and odor in cabin.

Attributes
ACN	449793
Time
Date	199909
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mem.airport
State Reference	TN
Altitude	msl single value : 1300
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : mem.tower
Operator	common carrier : air carrier
Make Model Name	DC-9 50
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 12000 flight time type : 7000
ASRS Report	449793
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	inflight encounter other other anomaly
Resolutory Action	flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Ambiguous

Narrative:

Normal takeoff from mem runway 36L until about 1300 ft MSL a loud bang, like a single compressor stall was heard by all crew members. Engine instruments were normal but a odor was instantly detected in the air conditioning system. Cockpit thought it was a bird -- possibly in the right engine. The right air conditioning pack was turned off -- odor ended. A normal, uneventful return and landing was made at memphis. Maintenance found fragments of a balloon on the inlet guide vanes of the right engine, all else was normal.

Original NASA ASRS Text

Title: DC9 CREW HAD COMPRESSOR STALL AND ODOR IN CABIN.

Narrative: NORMAL TKOF FROM MEM RWY 36L UNTIL ABOUT 1300 FT MSL A LOUD BANG, LIKE A SINGLE COMPRESSOR STALL WAS HEARD BY ALL CREW MEMBERS. ENG INSTS WERE NORMAL BUT A ODOR WAS INSTANTLY DETECTED IN THE AIR CONDITIONING SYS. COCKPIT THOUGHT IT WAS A BIRD -- POSSIBLY IN THE R ENG. THE R AIR CONDITIONING PACK WAS TURNED OFF -- ODOR ENDED. A NORMAL, UNEVENTFUL RETURN AND LNDG WAS MADE AT MEMPHIS. MAINT FOUND FRAGMENTS OF A BALLOON ON THE INLET GUIDE VANES OF THE R ENG, ALL ELSE WAS NORMAL.

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.