An MD80 crew, departing dfw, were unable to pressurize the aircraft. A return to dfw was initiated, ...

Attributes
ACN	549047
Time
Date	200205
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	msl single value : 10000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d10.tracon tower : lch.tower
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	549047
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : cabin pressure indicator other flight crewa other flight crewb other other : fa 3
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition flight crew : diverted to another airport
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Departed dfw with right air conditioning pack placarded inoperative. After takeoff, aircraft would not pressurize. Followed operations manual procedures -- no help. Flight attendant reported loud air noise from rear of aircraft. Cabin temperature became uncomfortably warm. Considering these and previous problems with aircraft, I opted to exercise emergency authority/authorized and return for overweight landing at 133600 pounds. Landing was smooth and uneventful.

Original NASA ASRS Text

Title: AN MD80 CREW, DEPARTING DFW, WERE UNABLE TO PRESSURIZE THE ACFT. A RETURN TO DFW WAS INITIATED, LNDG OVERWT.

Narrative: DEPARTED DFW WITH R AIR CONDITIONING PACK PLACARDED INOP. AFTER TKOF, ACFT WOULD NOT PRESSURIZE. FOLLOWED OPS MANUAL PROCS -- NO HELP. FLT ATTENDANT RPTED LOUD AIR NOISE FROM REAR OF ACFT. CABIN TEMP BECAME UNCOMFORTABLY WARM. CONSIDERING THESE AND PREVIOUS PROBS WITH ACFT, I OPTED TO EXERCISE EMER AUTH AND RETURN FOR OVERWT LNDG AT 133600 LBS. LNDG WAS SMOOTH AND UNEVENTFUL.

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.

An MD80 crew, departing dfw, were unable to pressurize the aircraft. A return to dfw was initiated, landing overweight.