 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Maintenance staff reported that while repairing an inoperative crew oxygen bottle; a valve was inadvertently secured in the wrong position.
| Attributes | |
| ACN | 1705385 |
| Time | |
| Date | 201911 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| 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:
Troubleshot oxygen system all day for aircraft leaking crew O2 and not able to take any new O2. Replaced a transducer; ops checked bad; troubleshot it down to a broken regulator on the crew O2 bottle. Removed and replaced the O2 bottle yet misread the regulator saying closed instead of open.the crew tested O2 system with no oxygen coming out. Mechanics noticed regulator was wired in the off position. Was hurried to finish job due to unable to work late yet had to stay to complete job.had a lapse of memory thought I re-secured the valve in the on position. Just made a mistake.
Original NASA ASRS Text
Title: Maintenance staff reported that while repairing an inoperative Crew oxygen bottle; a valve was inadvertently secured in the wrong position.
Narrative: Troubleshot oxygen system all day for aircraft leaking crew O2 and not able to take any new O2. Replaced a transducer; ops checked bad; troubleshot it down to a broken regulator on the crew O2 bottle. Removed and replaced the O2 bottle yet misread the regulator saying closed instead of open.The crew tested O2 system with no oxygen coming out. Mechanics noticed regulator was wired in the OFF position. Was hurried to finish job due to unable to work late yet had to stay to complete job.Had a lapse of memory thought I re-secured the valve in the on position. Just made a mistake.
Data retrieved from NASA's ASRS site 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.