An air carrier large transport returned and landed overweight with a pressurization problem.

Attributes
ACN	248901
Time
Date	199308
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 240 flight time total : 25000 flight time type : 5000
ASRS Report	248901
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Right pack was not working. Could not control pressure in automatic, stand-by, or manual. Return sfo. Made overweight landing. Did not declare emergency. Made normal approach and landing.

Original NASA ASRS Text

Title: AN ACR LGT RETURNED AND LANDED OVERWT WITH A PRESSURIZATION PROB.

Narrative: R PACK WAS NOT WORKING. COULD NOT CTL PRESSURE IN AUTO, STAND-BY, OR MANUAL. RETURN SFO. MADE OVERWT LNDG. DID NOT DECLARE EMER. MADE NORMAL APCH AND LNDG.

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.