swarf in fuel tanks blocked the fuel filters
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swarf to be found through fuel uplift highly unlikely, fuels pumped on through filters on bowser either moniters which are like giant tampons trap fod and swell and block at the 1st sign of water, or coallescers then the final defence are cone end filters in the actual coupling which as it says is a cone of very fine mesh, which should be checked monthly, if its a decent oil company.....
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Around 40 odd years ago now, as an Apprentice at the time, often used to have to work inside the fuel tanks on Aircraft undergoing major checks and overhaul, we had to wear special clothing and footwear so as to not leave anything behind in the tanks.
You would not believe some of the things we found in tanks, including on one Lockheed L188 Electra one day, not 1 but 2 heels from someone's shoes.
This is as well as the filings you are talking about, and rivet heads etc etc............
You would not believe some of the things we found in tanks, including on one Lockheed L188 Electra one day, not 1 but 2 heels from someone's shoes.
This is as well as the filings you are talking about, and rivet heads etc etc............
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Swarf/Sealion
My B757 s engines died on fial approech SWARF FROM BOEING She was built in Seattle brand new.
She was built duiring the Boeing Strike.
Did someone SABOTAGE our plane.
If there is no explanation from Boeing,
Watch ITN NEWS I am pissed off with the Caa ,D Mclelland Caa party boy I am going on TV.
Caa hide too much
British Medical Association flew Blue Planes dangerous Fk27s rudder trim tab fell off in flight
Too many cover ups.
Too much builying Thanks Pablo Mason.you stood tall and true.
I am about to vent the wrath of my SPLEEN on the Authorities
She was built duiring the Boeing Strike.
Did someone SABOTAGE our plane.
If there is no explanation from Boeing,
Watch ITN NEWS I am pissed off with the Caa ,D Mclelland Caa party boy I am going on TV.
Caa hide too much
British Medical Association flew Blue Planes dangerous Fk27s rudder trim tab fell off in flight
Too many cover ups.
Too much builying Thanks Pablo Mason.you stood tall and true.
I am about to vent the wrath of my SPLEEN on the Authorities
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nojh - that must be the most rambling, incoherent post I've ever seen on PPRUNE. Try again when you've calmed down/sobered up/flushed the pills out of your bloodstream.
My B757 s engines died on fial approech SWARF FROM BOEING
Swarf in fuel tanks blocked the fuel filters,on a B757 i was flying causing one of the RR Rb211 535e4 engines to fail on short final.We performed a single engined landing.
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Sealion
Exactly why I wrote the thread,metallic swarf caused our engines to fail so why not a 777.
It is time to stop covering up mistakes by the whole industery.
Tis time for transparency and the truth,so let us tell the media what aviation is realy like,
It is time to stop covering up mistakes by the whole industery.
Tis time for transparency and the truth,so let us tell the media what aviation is realy like,
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Prevention costs
When drilling holes off or reeming holes from outside of aircraft in, you should have someone on the inside of fuel tank with a vacuum cleaner held over the hole to contain the swarf as the hole is being drilled!, for example.
These's days due to time and careless these little details are not incorporated into a lot of todays maintenance practices. In every maintanence task there is many ways of carrying out the job, (unlike the boys flying em) the long way or the short dodgy way. No airline wants to pay for good maintenance. You will see a lot more of these sort of occurances in the future.
These's days due to time and careless these little details are not incorporated into a lot of todays maintenance practices. In every maintanence task there is many ways of carrying out the job, (unlike the boys flying em) the long way or the short dodgy way. No airline wants to pay for good maintenance. You will see a lot more of these sort of occurances in the future.
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nojh: if you are genuine, give us some facts
Airline
Aircraft registration
Date and time of event
Location
Links to AAIB reports or media reports.
Airline
Aircraft registration
Date and time of event
Location
Links to AAIB reports or media reports.
Last edited by moggiee; 1st Feb 2008 at 16:37.
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When I worked for the late lamented MANX/British regional/ba connect it was company policy to change/inspect fuel filters 25 flying hours after any in tank work no matter how minor to catch any swarf/fod debris.
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Prevention costs
Dear Mavrik 1
At last an intelligent post ,thank you very much for that one.
We were told that what you described was exactly what happened duiring construction. (this aircraft was built duiring the Boeing strike,and was severly delayed,and seemed to lack continuity of construction and procedures)
Boeing went into Ostrich Mode
Strange but many years later An RB211535E4A disintegrated over Greece RR had not torqued up the nuts and bolts on the LP turbine. This was also strike related,! Worse still I had flown that one the day before .
Thanks for your suportive post.
At last an intelligent post ,thank you very much for that one.
We were told that what you described was exactly what happened duiring construction. (this aircraft was built duiring the Boeing strike,and was severly delayed,and seemed to lack continuity of construction and procedures)
Boeing went into Ostrich Mode
Strange but many years later An RB211535E4A disintegrated over Greece RR had not torqued up the nuts and bolts on the LP turbine. This was also strike related,! Worse still I had flown that one the day before .
Thanks for your suportive post.
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Easy.
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nojh
to go way back to your original question - yes - I have seen an engine contaminated by swarf, though not from the tanks, but from a failed engine driven fuel pump.
And just to put peoples terminology into perspective shouldn't we be referring to this material as DOD not FOD. Since you are suggesting the material was from inside the tanks. If someone had taken something from outside the tank, left it in there - that would be FOD. DOD - Domestic Object Damage, i.e. from inside the system.
Further to your questions, would you be better asking what procedures are in place to replace engine LP fuel filters at a set period after fuel tank repairs. I thought this was common-practice, if not in-fact an AMM requirement?
Brgd's
N1 Vibes
to go way back to your original question - yes - I have seen an engine contaminated by swarf, though not from the tanks, but from a failed engine driven fuel pump.
And just to put peoples terminology into perspective shouldn't we be referring to this material as DOD not FOD. Since you are suggesting the material was from inside the tanks. If someone had taken something from outside the tank, left it in there - that would be FOD. DOD - Domestic Object Damage, i.e. from inside the system.
Further to your questions, would you be better asking what procedures are in place to replace engine LP fuel filters at a set period after fuel tank repairs. I thought this was common-practice, if not in-fact an AMM requirement?
Brgd's
N1 Vibes
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Had a donk run down on a 707 over Germany , enroute to LHR. Wouldn't relight either.
Aircraft had a history of hot starts or late light offs.
Turned out to be sludge caused by the foam backing from a carpet left in a wing tank during maintenance. Filters didnt touch it till it blocked the burners.
Seemed that in investigating the starting problem, the ground guys drained the suspect tank BUT didnt tank it off as waste merely put it in the centre tank.
The manual allowed feeding from the centre to all engines with one other tank as a back up. Wouldnt have worked well as a back up with all engines blocked!
Aircraft had a history of hot starts or late light offs.
Turned out to be sludge caused by the foam backing from a carpet left in a wing tank during maintenance. Filters didnt touch it till it blocked the burners.
Seemed that in investigating the starting problem, the ground guys drained the suspect tank BUT didnt tank it off as waste merely put it in the centre tank.
The manual allowed feeding from the centre to all engines with one other tank as a back up. Wouldnt have worked well as a back up with all engines blocked!