Unable to control cabin pressurization, return and land.

Attributes
ACN	95942
Time
Date	198810
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : mem
State Reference	TN
Altitude	agl bound lower : 1500 agl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : mem
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 15000 flight time type : 6000
ASRS Report	95942
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Unable to control cabin pressure. Surges of 2000' pm both up and down right after takeoff. Turned both air conditioning packs off and returned to mem after burning off fuel so as not to exceed gross landing weights.

Original NASA ASRS Text

Title: UNABLE TO CONTROL CABIN PRESSURIZATION, RETURN AND LAND.

Narrative: UNABLE TO CONTROL CABIN PRESSURE. SURGES OF 2000' PM BOTH UP AND DOWN RIGHT AFTER TKOF. TURNED BOTH AIR CONDITIONING PACKS OFF AND RETURNED TO MEM AFTER BURNING OFF FUEL SO AS NOT TO EXCEED GROSS LNDG WTS.

Data retrieved from NASA's ASRS site as of August 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.