B737-300 cabin crew has an unarmed door while in-flight.

Attributes
ACN	726679
Time
Date	200702
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tower : den.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight attendant : on duty
ASRS Report	726679
Events
Anomaly	non adherence : company policies non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : poor indicator other flight crewb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Cabin Crew Human Performance
Primary Problem	Cabin Crew Human Performance

Narrative:

Last night on my flight I noticed midway through the flight that door 1L was disarmed. I was position #4 and was in mid-cabin when the arm doors was announced and I walked up to my door and went through the motions of my arming procedure only I didn't realize that the purser must have already armed it without telling me and then going through the routine I disarmed it instead of noticing it was already armed. It is fuzzy to me as I swear I armed the door but obviously I did not. I immediately armed my door. Obviously a lack of communication between the purser and I and my fault for not ensuring my door was armed was the problem.

Original NASA ASRS Text

Title: B737-300 CABIN CREW HAS AN UNARMED DOOR WHILE INFLT.

Narrative: LAST NIGHT ON MY FLT I NOTICED MIDWAY THROUGH THE FLT THAT DOOR 1L WAS DISARMED. I WAS POS #4 AND WAS IN MID-CABIN WHEN THE ARM DOORS WAS ANNOUNCED AND I WALKED UP TO MY DOOR AND WENT THROUGH THE MOTIONS OF MY ARMING PROC ONLY I DIDN'T REALIZE THAT THE PURSER MUST HAVE ALREADY ARMED IT WITHOUT TELLING ME AND THEN GOING THROUGH THE ROUTINE I DISARMED IT INSTEAD OF NOTICING IT WAS ALREADY ARMED. IT IS FUZZY TO ME AS I SWEAR I ARMED THE DOOR BUT OBVIOUSLY I DID NOT. I IMMEDIATELY ARMED MY DOOR. OBVIOUSLY A LACK OF COM BTWN THE PURSER AND I AND MY FAULT FOR NOT ENSURING MY DOOR WAS ARMED WAS THE PROB.

Data retrieved from NASA's ASRS site as of January 2009 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.