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A B737-500 during maintenance had the crew oxygen bottle valve closed and was not reopened when dispatched.
| Attributes | |
| ACN | 362020 |
| Time | |
| Date | 199703 |
| Day | Sat |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 362020 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
Assigned oxygen service on aircraft. Found service panel gauge reading zero. Checked gauge on oxygen bottle reading within service limits. Closed valve in preparation to replace service panel gauge. Pulled up maintenance manual and ordered parts. Back at aircraft checked circuit breaker (reset). Rechked service panel gauge and found to be reading actual system pressure. Svced oxygen and closed up aircraft, forgetting that I had closed the oxygen bottle shut off valve.
Original NASA ASRS Text
Title: A B737-500 DURING MAINT HAD THE CREW OXYGEN BOTTLE VALVE CLOSED AND WAS NOT REOPENED WHEN DISPATCHED.
Narrative: ASSIGNED OXYGEN SVC ON ACFT. FOUND SVC PANEL GAUGE READING ZERO. CHKED GAUGE ON OXYGEN BOTTLE READING WITHIN SVC LIMITS. CLOSED VALVE IN PREPARATION TO REPLACE SVC PANEL GAUGE. PULLED UP MAINT MANUAL AND ORDERED PARTS. BACK AT ACFT CHKED CIRCUIT BREAKER (RESET). RECHKED SVC PANEL GAUGE AND FOUND TO BE READING ACTUAL SYS PRESSURE. SVCED OXYGEN AND CLOSED UP ACFT, FORGETTING THAT I HAD CLOSED THE OXYGEN BOTTLE SHUT OFF VALVE.
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.