Narrative:

Pilot squawk: 'during deployment of captain's oxygen (O2) mask at FL430; a leak was discovered upon actuation of the red levers to inflate the harness. The leak was located on the right side; bottom hose at the attachment point where the O2 can be felt escaping'. Work order (west/O) # XXX was opened and an O2 mask was ordered. An overhauled O2 crew mask was received in april 2012 (part number XXX-151) from dassault falcon to replace the defective unit installed on the aircraft. The part number ordered was the same as the previously installed unit. However; when the technician checked the newly received unit over; he noticed the O2 supply line attached to the mask was not the same and did not have the flow indicator in-line as the previous unit had. The technician brought this to my attention and I called dassault falcon to get some answers. A dassault falcon technical service representative did some research and relayed to me that the O2 [mask] unit that we received had the wrong supply hose installed and to return it to dassault falcon. I am suggesting that the aircraft manufacturer once again needs to be alerted of their quality escapes; [quality assurance breakdowns]; especially when is comes to oxygen related equipment.

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Original NASA ASRS Text

Title: A Base Inspector reports a Technician noticed an oxygen hose for a new crew O2 mask for the Captain's position on a Dassault Falcon 2000 aircraft; was not the same type of hose and did not have the in-line flow indicator as the previous unit had; even though the Part Numbers (P/N) were the same. Concerns raised again about the Manufacturer's Quality Assurance breakdowns involving oxygen related equipment.

Narrative: Pilot squawk: 'During deployment of Captain's oxygen (O2) mask at FL430; a leak was discovered upon actuation of the red levers to inflate the harness. The leak was located on the right side; bottom hose at the attachment point where the O2 can be felt escaping'. Work Order (W/O) # XXX was opened and an O2 mask was ordered. An overhauled O2 crew mask was received in April 2012 (Part Number XXX-151) from Dassault Falcon to replace the defective unit installed on the aircraft. The Part Number ordered was the same as the previously installed unit. However; when the Technician checked the newly received unit over; he noticed the O2 supply line attached to the mask was not the same and did not have the flow indicator in-line as the previous unit had. The Technician brought this to my attention and I called Dassault Falcon to get some answers. A Dassault Falcon Technical Service Representative did some research and relayed to me that the O2 [Mask] unit that we received had the wrong supply hose installed and to return it to Dassault Falcon. I am suggesting that the Aircraft Manufacturer once again needs to be alerted of their quality escapes; [Quality Assurance breakdowns]; especially when is comes to oxygen related equipment.

Data retrieved from NASA's ASRS site as of July 2013 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.