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Westwind Wizard
#6 Passenger Oxygen Mask Drop Check
If you are coming in to Trimec for an 800 hour "C" inspection we have a suggestion for operationally checking the cabin oxygen mask drop out system. This will also familiarize you with what goes on during mask drop out.
| 1. |
Level aircraft off at 16,000 feet. |
| 2. |
Slowly open manual dump valve (red knob). |
| 3. |
Watch for "10,000 FT CABIN" light on annunciator panel to illuminate at 10,000 foot cabin altitude. |
| 4. |
Cabin should level off at 13,000 feet. |
| 5. |
Select RAM - cabin will climb - you should get red "PASS OXYGEN ON" light on the passenger oxygen control panel on the copilot's side console and a simultaneous drop out of the passenger oxygen masks. |
Let them hang and we will inspect and repack them.
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