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View Poll Results: O2 top off is a aircraft write up discrepancy
Yes 12 80.00%
No 3 20.00%
Voters: 15. You may not vote on this poll

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Old 11-21-2019, 08:43 PM   #11  
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Originally Posted by TheRaven View Post
Oxygen pressure insufficient for Observer/jumpseater........they MEL jumpseat and you go on your way.
Only if the Captain allows it.
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Old 11-22-2019, 09:34 PM   #12  
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Part 43 regulations state thou shalt not touch the airplane except to fly it for parts 135 and 121, therefore any servicing is maintenance and must be performed by maintenance. There are a couple exceptions in part 43, but the airline/operator has to be specifically authorized to allow them. One is them may be oxygen servicing, id have to look, but the operator must have the authorization. I know other EMS stuff is in there. It also still requires compliance with the other parts of 43, like maintenance log entries, etc.
Found it...

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(g) Except for holders of a sport pilot certificate, the holder of a pilot certificate issued under part 61 may perform preventive maintenance on any aircraft owned or operated by that pilot which is not used under part 121, 129, or 135 of this chapter. The holder of a sport pilot certificate may perform preventive maintenance on an aircraft owned or operated by that pilot and issued a special airworthiness certificate in the light-sport category.

(i) Notwithstanding the provisions of paragraph (g) of this section, in accordance with an approval issued to the holder of a certificate issued under part 135 of this chapter, a pilot of an aircraft type-certificated for 9 or fewer passenger seats, excluding any pilot seat, may perform the removal and reinstallation of approved aircraft cabin seats, approved cabin-mounted stretchers, and when no tools are required, approved cabin-mounted medical oxygen bottles, provided—

(1) The pilot has satisfactorily completed an approved training program and is authorized in writing by the certificate holder to perform each task; and

(2) The certificate holder has written procedures available to the pilot to evaluate the accomplishment of the task.
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Old 11-23-2019, 07:08 AM   #13  
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Found it...
Interesting, my last outfit had me fill the medbed. It required tools to open and close valves on the oxygen tanks and the lines into the bed and I was shown how to fill it by a nurse. That was the company procedure.

I was also told I could fill the aircraft crew oxygen but never got around to it. We had the airport fuelers do it who to my knowledge were not A&Ps. Never a write up. Won't do that again.
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Old 11-23-2019, 08:21 AM   #14  
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If it needs a tool, it needs a write up.
Keep that in mind to keep the Feds off your back.
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Old 12-11-2020, 06:03 AM   #15  
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This is 135. I've been working for a couple of air ambulance outfits and in 2 of them I was responsible for filling the O2. I changed to a new company this year and they have maintenance do it. But I was never told to write it up. It's actually one of the mechanics daily jobs to refill the tanks on both the med bed and the crew so it never has a need for me to ask or write it up. I beat them to doing my preflight one day and found it down so I asked for a top off and apparently because I asked instead of them just doing it as the normal procedure it's now a write up.
Writing it up is just good practice. You may or may not have a minimum bottle pressure for dispatch based on how many occupants there are in the cockpit. However, if someone enters in the MX record: "bottle pressure OK to continue." Well, it's on the record now. You did your due dilligence. Is it possible the low bottle pressure could impede the flight? yes. Planned cruise altitude, or the flight itself could be scrubbed. Not your problem.

What if you wrote it up and someone filled the bottle incorrectly? There's now a paper trail.
What if you didn't write it up and another pilot took the aircraft and failed to check it and he/she needed that O2?

Twice I have been given airplanes and I tested the O2 and the O2 did not work when testing it. The maintenance guys freaked out when I wrote it up. They asked me not to. They forgot to turn the O2 back on in the belly of the jet prior to returning it to service, and prior to the final maintenance supervisor sign off. It was a 121 passenger aircraft.

Systems that "sustain life" should be written up if they are not in compliance with the required or minimum standard for airworthiness or the operation about to be conducted. the PIC is responsible for that.
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Old 12-11-2020, 09:39 AM   #16  
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Twice I have been given airplanes and I tested the O2 and the O2 did not work when testing it. The maintenance guys freaked out when I wrote it up. They asked me not to. They forgot to turn the O2 back on in the belly of the jet prior to returning it to service, and prior to the final maintenance supervisor sign off. It was a 121 passenger aircraft.

Systems that "sustain life" should be written up if they are not in compliance with the required or minimum standard for airworthiness or the operation about to be conducted. the PIC is responsible for that.

Yeah stuff like that needs to be documented so it can get fixed in case it's a trend. If you don't want to get somebody in trouble you could ASAP it (I don't *think* that would lead to a third party getting in trouble but not 100% sure). Or use the anonymous safety suggestion box.
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Old 12-12-2020, 05:45 AM   #17  
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Originally Posted by Cargocapt View Post
This is 135. I've been working for a couple of air ambulance outfits and in 2 of them I was responsible for filling the O2. I changed to a new company this year and they have maintenance do it. But I was never told to write it up. It's actually one of the mechanics daily jobs to refill the tanks on both the med bed and the crew so it never has a need for me to ask or write it up. I beat them to doing my preflight one day and found it down so I asked for a top off and apparently because I asked instead of them just doing it as the normal procedure it's now a write up.
Does MX have daily checks they do? Do they put an entry in the logbook such as “daily inspection safety checks”. If they do then the daily volume check and top off is probably included in the entries on their work order.
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