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B767 captain reported that the O2 masks were not compatible with the smoke goggles and did not provide a good seal.
| Attributes | |
| ACN | 1625684 |
| Time | |
| Date | 201903 |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Oxygen System/Crew |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
While at altitude on one flight; I removed the oxygen mask as the other pilot was taking a physiological break. I decided to see how the mask and the smoke goggles are donned together. After some time trying to get a good fit it became evident that the mask and the goggles did not fit properly onto one another. There was a gap of about at least one half inch as I looked down. It is my understanding that the goggles should fit tightly on the mask with the ability to clear the goggles of smoke with the mask. I was not able to make this happen. I spent several minutes shifting the mask and the goggles. It still did not seal. I asked the other pilot to do it. He had a tough time as well but was able to get it closer to sealing than I could. I had the occasion to try the same on my most recent flight. I encountered the same issue. A gap of approximately one half inch between the mask and the goggles. It appears that there is an issue here and I am submitting this report for some clarity. Is it possible that the goggles are not compatible with the mask on these airplanes? If so; this is a serious problem in the event of smoke in the cockpit.
Original NASA ASRS Text
Title: B767 Captain reported that the O2 masks were not compatible with the smoke goggles and did not provide a good seal.
Narrative: While at altitude on one flight; I removed the oxygen mask as the other pilot was taking a physiological break. I decided to see how the mask and the smoke goggles are donned together. After some time trying to get a good fit it became evident that the mask and the goggles did not fit properly onto one another. There was a gap of about at least one half inch as I looked down. It is my understanding that the goggles should fit tightly on the mask with the ability to clear the goggles of smoke with the mask. I was not able to make this happen. I spent several minutes shifting the mask and the goggles. It still did not seal. I asked the other pilot to do it. He had a tough time as well but was able to get it closer to sealing than I could. I had the occasion to try the same on my most recent flight. I encountered the same issue. A gap of approximately one half inch between the mask and the goggles. It appears that there is an issue here and I am submitting this report for some clarity. Is it possible that the goggles are not compatible with the mask on these airplanes? If so; this is a serious problem in the event of smoke in the cockpit.
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.