A line mechanic reports he installed a B757-200 crew oxygen bottle into an A319 aircraft.

Attributes
ACN	852228
Time
Date	200909
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Oxygen System/Crew
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy Deviation - Procedural Maintenance

Narrative:

Replaced crew O2 bottle due to low pressure during weekly check. Used exterior container tag XXXX-4 for reference. I found missing fitting and replaced with one from removed (old) crew bottle. Leak checked; found 'ok' at ZZZ gate. Third shift supervisor informed me that I installed wrong bottle. Did not verify illustrated parts catalog (ipc) part number (P/north) and manufacturer's (mfg) P/north on exterior part's tag; with the information on our serviceable part's tag.I removed the wrong O2 bottle; then reinstalled the fitting; serviced and reinstalled the original bottle. The part tag information on the shipping container must match the information on the serviceable part tag. All parts with a -4 should be entered into maintenance computer; or changed to -9 part number to give an alert; if wrong part installed.

Original NASA ASRS Text

Title: A Line Mechanic reports he installed a B757-200 Crew Oxygen bottle into an A319 aircraft.

Narrative: Replaced crew O2 bottle due to low pressure during weekly check. Used exterior container Tag XXXX-4 for reference. I found missing fitting and replaced with one from removed (old) crew bottle. Leak checked; found 'OK' at ZZZ gate. Third shift Supervisor informed me that I installed wrong bottle. Did not verify Illustrated Parts Catalog (IPC) Part Number (P/N) and Manufacturer's (Mfg) P/N on exterior Part's Tag; with the information on our Serviceable Part's Tag.I removed the wrong O2 bottle; then reinstalled the fitting; serviced and reinstalled the original bottle. The Part Tag information on the shipping container must match the information on the Serviceable Part Tag. All parts with a -4 should be entered into Maintenance computer; or changed to -9 Part Number to give an alert; if wrong part installed.

Data retrieved from NASA's ASRS site as of April 2012 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.