Mae At It Again?
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usairways_vote_NO
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700UW said:
Not really it depends what area of the body it contacts.
Two minutes was fast re: 700
The fluid had a red tint to it vs the normal purple tint of skydrol. Samples were taken and sent out but the decision was made to flush out all three systems of the aircraft. They should have the results of the tests by Wed. The aircraft is one that is scheduled to be returned.
usairways_vote_NO
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How was it found?
As if 2380 which is golden in color were added to it??AP Tech said:
For the inquiring minds:
Skydrol goes into the system with a purple hue to it. After circulating around for a while it takes on a yellowish-green appearance. I would drain some skydrol out of another bird and mix a tad of 2380 in at a time and observe what colors you get.
Heck, it could be anything at this point. However, the main concern remains: WHO PUT IT IN THERE and are any other aircraft contaminated :unsure: ????
MarkMyWords
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As far as I know, A/C 727 didnt' go to ST MAE for it's S check. Can anyone verify (through MMerlin) that the airplane was even in ST MAE and if it was, when?
Phantom Fixer
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Piney,
Skydrol is simply put ..a Synthetic Hydraulic Fluid with a very low flash point...it replaced a very flammable substance called Mil-type 5606 that is refered to in some circles as "Cherry Juice" do in part to its color.
MIL Type 5606 has been around for ever...and in one form or another is used in many types of equipment , but has been phased out of Commercial Aviation for it's higher volatility qualities being a detrement to safety.
MIL refers to its Military Specification , I E. meeting a certain standard set forth by Military Contract Specifications. This is a reliable and safe method of grading a given product..regardless of how one might feel about the Military or Military procurement system as a whole.
For example....if Exxon has a product and Shell and Mobile have a product...and all meet a given MIL-Spec? They are technically interchangeable.
This thread does not imply interchangeability of what this acft was wrongfully supposed to have been serviced with.
Improper servicing of a Hydraulic System can lead to a number of problems.
First and Foremost...the wrong fluid could lead to a system failure...where as Brakes or Flight Controls could cease to function properly.
The System coould develope leaks do to a non-acceptable fluid deteriorating the seals within the system..leading to the first scenario.
The system could become corroided with an improper fluid being introduced...thus leading to the first scenario.
The system could fail to to the improper fluid not being able to handle extreme temperature changes..thus leading to the first scenario.
By and large..if an un-authorized fluid was introduced to a given Acft...this would be on par with failing to install a proper rated bolt or any other item within the Aircraft...it's all about safety no matter what the subject or is or the system involved might be? Anyone doing this kind of work needs to be exposed and shown the path to a new career field in short order.
Skydrol is simply put ..a Synthetic Hydraulic Fluid with a very low flash point...it replaced a very flammable substance called Mil-type 5606 that is refered to in some circles as "Cherry Juice" do in part to its color.
MIL Type 5606 has been around for ever...and in one form or another is used in many types of equipment , but has been phased out of Commercial Aviation for it's higher volatility qualities being a detrement to safety.
MIL refers to its Military Specification , I E. meeting a certain standard set forth by Military Contract Specifications. This is a reliable and safe method of grading a given product..regardless of how one might feel about the Military or Military procurement system as a whole.
For example....if Exxon has a product and Shell and Mobile have a product...and all meet a given MIL-Spec? They are technically interchangeable.
This thread does not imply interchangeability of what this acft was wrongfully supposed to have been serviced with.
Improper servicing of a Hydraulic System can lead to a number of problems.
First and Foremost...the wrong fluid could lead to a system failure...where as Brakes or Flight Controls could cease to function properly.
The System coould develope leaks do to a non-acceptable fluid deteriorating the seals within the system..leading to the first scenario.
The system could become corroided with an improper fluid being introduced...thus leading to the first scenario.
The system could fail to to the improper fluid not being able to handle extreme temperature changes..thus leading to the first scenario.
By and large..if an un-authorized fluid was introduced to a given Acft...this would be on par with failing to install a proper rated bolt or any other item within the Aircraft...it's all about safety no matter what the subject or is or the system involved might be? Anyone doing this kind of work needs to be exposed and shown the path to a new career field in short order.
N924PS
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Phantom Fixer said:
Phantom,
This could have been potentially catastrophic in an A320 Family Aircraft.
While the aircraft has three hydraulic systems for redundancy, there is NO manual backup for the flight controls if all three hydraulic systems failed. The aircraft would only be minimally controllable by using thrust/differential thrust as the resourceful crew of UAL 232 (DC-10 Sioux City) found.
Let's hope this was isolated to one aircraft and the reason for this mistake found quickly.
usairways_vote_NO
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And hope it was not done on purpose. Did they find out what it was and how it got there?N924PS said:
I rcvd info this morning thru my grapevine, that 5606 was the contaminant found in all 3 hydro systems.
Can anyone in PIT Base substantiate this?????
I also like the way this post has lost interest and just about swept under the rug. Yet one more reason I am leaving aviation.......4 days to go 🙄
Can anyone in PIT Base substantiate this?????
I also like the way this post has lost interest and just about swept under the rug. Yet one more reason I am leaving aviation.......4 days to go 🙄
I hate to burst everyones bubble but I believe 727's hydro system ended up being clean. The results of the samples were "swept under the rug" for some to save face. I would love to know the cost of the material and manpower required for the three system flush.
The reason I believe this is A/C 755 came in for an A check and two of the hydro system required changing and I happened to see the fluid removed from the two systems and it had the same redish tint as 727. I believe the condition is normal on the Airbus fleet.
The reason I believe this is A/C 755 came in for an A check and two of the hydro system required changing and I happened to see the fluid removed from the two systems and it had the same redish tint as 727. I believe the condition is normal on the Airbus fleet.
