An air carrier flight diverts to boi after experiencing a sudden decompression at FL330 over imb, or...

Attributes
ACN	460444
Time
Date	200001
Day	Fri
Local Time Of Day	0601 To 1200
Place
State Reference	OR
Altitude	msl single value : 33000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse.artcc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 10000 flight time type : 6000
ASRS Report	460444
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : cabin alt ind other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed in emergency condition
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Flight was planned sea to phx and departed normally. Shortly after leveling at FL330, a pressure 'bump' was felt and cabin rate was noted as being 'pegged' and cabin climbing rapidly. Performed emergency descent to 11000 ft per company procedures. Diverted to boi for WX and terrain considerations. Landed at 114500 pounds (500 pounds over maximum). Postflt inspection determined that 3 ft of aft cargo door seal was separated from door.

Original NASA ASRS Text

Title: AN ACR FLT DIVERTS TO BOI AFTER EXPERIENCING A SUDDEN DECOMPRESSION AT FL330 OVER IMB, OR.

Narrative: FLT WAS PLANNED SEA TO PHX AND DEPARTED NORMALLY. SHORTLY AFTER LEVELING AT FL330, A PRESSURE 'BUMP' WAS FELT AND CABIN RATE WAS NOTED AS BEING 'PEGGED' AND CABIN CLBING RAPIDLY. PERFORMED EMER DSCNT TO 11000 FT PER COMPANY PROCS. DIVERTED TO BOI FOR WX AND TERRAIN CONSIDERATIONS. LANDED AT 114500 LBS (500 LBS OVER MAX). POSTFLT INSPECTION DETERMINED THAT 3 FT OF AFT CARGO DOOR SEAL WAS SEPARATED FROM DOOR.

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.