<< >> NASA ASRS Report 519993, April 2001

A B747-400 in cruise has a cabin attendant report concerning poor air circulation in the passenger cabin.

Attributes
ACN	519993
Time
Date	200104
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zhn.artcc
State Reference	HI
Environment
Flight Conditions	VMC Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhn.artcc
Operator	common carrier : air carrier
Make Model Name	B747-400
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight attendant : on duty
Qualification	flight attendant : currently qualified flight attendant aircraft qualified on : 10
Experience	flight attendant time airline total : 15 flight attendant time total : 29 flight attendant time type : 100
ASRS Report	519993
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical cabin event other
Resolutory Action	none taken : anomaly accepted
Consequence	other other
Supplementary
Problem Areas	Aircraft Cabin Crew Human Performance Environmental Factor
Primary Problem	Aircraft

Narrative:

A female pilot who brought aircraft in on that same morning told one of our flight attendants that the aircraft had severe problems with the oxygen system. Approximately 1/2 way between fiji and hnl we were informed that 1 oxygen pack was inoperative, a second one was working intermittently and that the 4TH one was being kept off in case of emergency. We were told that we may need to do a rapid descent if oxygen masks came down. I have asthma with breathing problems anyway, and felt a dull constant pain in the bottom of my chest as I was trying to breathe while on the aircraft.

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Original NASA ASRS Text

Title: A B747-400 IN CRUISE HAS A CABIN ATTENDANT RPT CONCERNING POOR AIR CIRCULATION IN THE PAX CABIN.

Narrative: A FEMALE PLT WHO BROUGHT ACFT IN ON THAT SAME MORNING TOLD ONE OF OUR FLT ATTENDANTS THAT THE ACFT HAD SEVERE PROBS WITH THE OXYGEN SYS. APPROX 1/2 WAY BTWN FIJI AND HNL WE WERE INFORMED THAT 1 OXYGEN PACK WAS INOP, A SECOND ONE WAS WORKING INTERMITTENTLY AND THAT THE 4TH ONE WAS BEING KEPT OFF IN CASE OF EMER. WE WERE TOLD THAT WE MAY NEED TO DO A RAPID DSCNT IF OXYGEN MASKS CAME DOWN. I HAVE ASTHMA WITH BREATHING PROBS ANYWAY, AND FELT A DULL CONSTANT PAIN IN THE BOTTOM OF MY CHEST AS I WAS TRYING TO BREATHE WHILE ON THE ACFT.

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.