Air carrier large transport experiences pressurization problems.

Attributes
ACN	153015
Time
Date	199008
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : iah
State Reference	TX
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : iah
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	other other : other pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 100 flight time total : 11000 flight time type : 3000
ASRS Report	153015
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	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Just after departure at iah, cabin altitude started rising at approximately 1500 FPM. Second officer could not get control of cabin. We climbed out at 1000 FPM to 9000'. Aircraft was unpressurized at approximately 2000' MSL. All door warning lights were checked and were out. Flight was conducted to aus in a safe manner. Descent was made at 300-500 FPM. Approximately 1/2 way through the flight the equipment access door warning light illuminated. When checked on the ground in aus, access door was closed but appeared not seated. Suspect pressurization controller or outflow valve.

Original NASA ASRS Text

Title: ACR LGT EXPERIENCES PRESSURIZATION PROBLEMS.

Narrative: JUST AFTER DEP AT IAH, CABIN ALT STARTED RISING AT APPROX 1500 FPM. S/O COULD NOT GET CTL OF CABIN. WE CLBED OUT AT 1000 FPM TO 9000'. ACFT WAS UNPRESSURIZED AT APPROX 2000' MSL. ALL DOOR WARNING LIGHTS WERE CHKED AND WERE OUT. FLT WAS CONDUCTED TO AUS IN A SAFE MANNER. DSNT WAS MADE AT 300-500 FPM. APPROX 1/2 WAY THROUGH THE FLT THE EQUIP ACCESS DOOR WARNING LIGHT ILLUMINATED. WHEN CHKED ON THE GND IN AUS, ACCESS DOOR WAS CLOSED BUT APPEARED NOT SEATED. SUSPECT PRESSURIZATION CTLR OR OUTFLOW VALVE.

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.