A B737-300 captain discovers security seal tape on the fwd lav ceiling passenger oxygen door.

Attributes
ACN	671619
Time
Date	200509
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den.airport
State Reference	CO
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 200 flight time total : 16000 flight time type : 7500
ASRS Report	671619
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took precautionary avoidance action
Consequence	other
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

After briefing the flight attendants prior to departure; I checked the forward lav and found that the oxygen door in the ceiling had the blue security tape across the door. This tape could possibly prevent the oxygen door from opening during a pressurization problem; thus depriving an individual in the lav of oxygen. Maintenance was called and agreed that security tape should not be put in this location. Maintenance came to aircraft and removed the tape. I had the flight attendant check the aft lavs and found no tape in those locations. I was alerted to this by a flight attendant the previous day who told me that he had found this problem on other aircraft.

Original NASA ASRS Text

Title: A B737-300 CAPT DISCOVERS SECURITY SEAL TAPE ON THE FWD LAV CEILING PAX OXYGEN DOOR.

Narrative: AFTER BRIEFING THE FLT ATTENDANTS PRIOR TO DEP; I CHKED THE FORWARD LAV AND FOUND THAT THE OXYGEN DOOR IN THE CEILING HAD THE BLUE SECURITY TAPE ACROSS THE DOOR. THIS TAPE COULD POSSIBLY PREVENT THE OXYGEN DOOR FROM OPENING DURING A PRESSURIZATION PROB; THUS DEPRIVING AN INDIVIDUAL IN THE LAV OF OXYGEN. MAINT WAS CALLED AND AGREED THAT SECURITY TAPE SHOULD NOT BE PUT IN THIS LOCATION. MAINT CAME TO ACFT AND REMOVED THE TAPE. I HAD THE FLT ATTENDANT CHK THE AFT LAVS AND FOUND NO TAPE IN THOSE LOCATIONS. I WAS ALERTED TO THIS BY A FLT ATTENDANT THE PREVIOUS DAY WHO TOLD ME THAT HE HAD FOUND THIS PROB ON OTHER ACFT.

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.