A B727-200 has to return land at dfw when the aircraft's pressurization system develops a problem.

Attributes
ACN	423466
Time
Date	199812
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dfw
State Reference	TX
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Flight Phase	cruise other other other
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight attendant : on duty
Qualification	other other : other
ASRS Report	423466
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other

Narrative:

Shortly after takeoff, captain called me to cockpit. There was a problem as aircraft would not pressurize. We were at 6000 ft. An emergency was declared, airspace back to dfw was cleared. We had to dump fuel first before landing. We landed safely at dfw airport. No slides were used. Aircraft was taken OTS and we got another airplane and proceeded into bwi.

Original NASA ASRS Text

Title: A B727-200 HAS TO RETURN LAND AT DFW WHEN THE ACFT'S PRESSURIZATION SYS DEVELOPS A PROB.

Narrative: SHORTLY AFTER TKOF, CAPT CALLED ME TO COCKPIT. THERE WAS A PROB AS ACFT WOULD NOT PRESSURIZE. WE WERE AT 6000 FT. AN EMER WAS DECLARED, AIRSPACE BACK TO DFW WAS CLRED. WE HAD TO DUMP FUEL FIRST BEFORE LNDG. WE LANDED SAFELY AT DFW ARPT. NO SLIDES WERE USED. ACFT WAS TAKEN OTS AND WE GOT ANOTHER AIRPLANE AND PROCEEDED INTO BWI.

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.