An FBO reports a number of commercial fixed wing aircraft oxygen system were svced improperly due to...

Attributes
ACN	377021
Time
Date	199708
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	Other
Function	other personnel other personnel other
Qualification	other other : other
ASRS Report	377021
Person 2
Affiliation	Other
Function	other personnel
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

During a regularly scheduled internal audit, recent invoices from a breathing oxygen supplier were checked by quality control personnel. The invoices indicated that the vendor had supplied hospital oxygen rather than aviator's breathing oxygen. The vendor was consulted and affirmed that hospital oxygen had indeed been delivered. The oxygen remaining in the repair station stocks from that delivery were discarded and replaced by aviation breathing oxygen from another supplier. This mistake could have been prevented if the receiving inspector had access to more information such as a detailed packing slip. The containers in which the oxygen were delivered were marked 'aviation breathing oxygen.' the packing slip listed the delivery as containing oxygen, with no additional description. The invoice listed the specific type of oxygen, but was unavailable until days after delivery. The purchase order, originated by the repair station, was no true indicator of the content of the shipment. Since we, like most aviation maintenance facilities, cannot test or analyze products such as oxygen, we rely totally upon our vendors to supply the commodity as ordered.

Original NASA ASRS Text

Title: AN FBO RPTS A NUMBER OF COMMERCIAL FIXED WING ACFT OXYGEN SYS WERE SVCED IMPROPERLY DUE TO THE OXYGEN SUPPLIED BY THE VENDOR WAS OF THE WRONG TYPE.

Narrative: DURING A REGULARLY SCHEDULED INTERNAL AUDIT, RECENT INVOICES FROM A BREATHING OXYGEN SUPPLIER WERE CHKED BY QUALITY CTL PERSONNEL. THE INVOICES INDICATED THAT THE VENDOR HAD SUPPLIED HOSPITAL OXYGEN RATHER THAN AVIATOR'S BREATHING OXYGEN. THE VENDOR WAS CONSULTED AND AFFIRMED THAT HOSPITAL OXYGEN HAD INDEED BEEN DELIVERED. THE OXYGEN REMAINING IN THE REPAIR STATION STOCKS FROM THAT DELIVERY WERE DISCARDED AND REPLACED BY AVIATION BREATHING OXYGEN FROM ANOTHER SUPPLIER. THIS MISTAKE COULD HAVE BEEN PREVENTED IF THE RECEIVING INSPECTOR HAD ACCESS TO MORE INFO SUCH AS A DETAILED PACKING SLIP. THE CONTAINERS IN WHICH THE OXYGEN WERE DELIVERED WERE MARKED 'AVIATION BREATHING OXYGEN.' THE PACKING SLIP LISTED THE DELIVERY AS CONTAINING OXYGEN, WITH NO ADDITIONAL DESCRIPTION. THE INVOICE LISTED THE SPECIFIC TYPE OF OXYGEN, BUT WAS UNAVAILABLE UNTIL DAYS AFTER DELIVERY. THE PURCHASE ORDER, ORIGINATED BY THE REPAIR STATION, WAS NO TRUE INDICATOR OF THE CONTENT OF THE SHIPMENT. SINCE WE, LIKE MOST AVIATION MAINT FACILITIES, CANNOT TEST OR ANALYZE PRODUCTS SUCH AS OXYGEN, WE RELY TOTALLY UPON OUR VENDORS TO SUPPLY THE COMMODITY AS ORDERED.

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.

An FBO reports a number of commercial fixed wing aircraft oxygen system were svced improperly due to the oxygen supplied by the vendor was of the wrong type.