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B757 captain breaks oxygen line attempting to stow full face mask.
| Attributes | |
| ACN | 737206 |
| Time | |
| Date | 200704 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : koa.airport |
| State Reference | HI |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhn.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | enroute : pacific |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 737205 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
The mask is too big for the storage box. Defective oxygen mask on captain's side. While stowing the mask; during descent into kona; hi; the oxygen line broke at the regulator. This mask is really a tight fit for the oxygen storage box. First officer was flying and we continued to koa with an uneventful landing. I was stowing the oxygen mask when the line broke from the regulator. Once the oxygen line broke; I closed the oxygen box lid to stop the oxygen from flowing. Rethink having the full face mask on the 'new' B757/B737 fleet. Maybe change back to the original mask that the other aircraft use.
Original NASA ASRS Text
Title: B757 CAPT BREAKS OXYGEN LINE ATTEMPTING TO STOW FULL FACE MASK.
Narrative: THE MASK IS TOO BIG FOR THE STORAGE BOX. DEFECTIVE OXYGEN MASK ON CAPT'S SIDE. WHILE STOWING THE MASK; DURING DSCNT INTO KONA; HI; THE OXYGEN LINE BROKE AT THE REGULATOR. THIS MASK IS REALLY A TIGHT FIT FOR THE OXYGEN STORAGE BOX. FO WAS FLYING AND WE CONTINUED TO KOA WITH AN UNEVENTFUL LNDG. I WAS STOWING THE OXYGEN MASK WHEN THE LINE BROKE FROM THE REGULATOR. ONCE THE OXYGEN LINE BROKE; I CLOSED THE OXYGEN BOX LID TO STOP THE OXYGEN FROM FLOWING. RETHINK HAVING THE FULL FACE MASK ON THE 'NEW' B757/B737 FLEET. MAYBE CHANGE BACK TO THE ORIGINAL MASK THAT THE OTHER ACFT USE.
Data retrieved from NASA's ASRS site as of January 2009 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.