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A line mechanic reports a B757-200 aircraft flight crew quick-donning oxygen mask boxes for the captain and first officer's position were installed aft of the cockpit speakers; instead of at the forward side of the speakers.
| Attributes | |
| ACN | 943857 |
| Time | |
| Date | 201104 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| 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 |
Narrative:
The flight crew quick-donning oxygen mask boxes (captain's and first officer's both); were installed incorrectly. Their positions being swapped with the cockpit speakers on either side of the cockpit. The oxygen masks should properly be forward of the speakers; but instead were installed aft of them. This misconfiguration probably happened at contracted maintenance overhaul in ZZZ.
Original NASA ASRS Text
Title: A Line Mechanic reports a B757-200 aircraft flight crew quick-donning oxygen mask boxes for the Captain and First Officer's position were installed aft of the cockpit speakers; instead of at the forward side of the speakers.
Narrative: The flight crew quick-donning oxygen mask boxes (Captain's and First Officer's both); were installed incorrectly. Their positions being swapped with the cockpit speakers on either side of the cockpit. The oxygen masks should properly be forward of the speakers; but instead were installed aft of them. This misconfiguration probably happened at Contracted Maintenance overhaul in ZZZ.
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.