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swarf in fuel tanks blocked the fuel filters

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swarf in fuel tanks blocked the fuel filters

Old 31st Jan 2008, 19:44
  #21 (permalink)  
 
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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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Old 31st Jan 2008, 21:42
  #22 (permalink)  
 
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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............
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Old 31st Jan 2008, 22:27
  #23 (permalink)  
 
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I'm trying to remember who operated 757s to Sao Paulo. Think Varig did for a while, cant remember anyone else.
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Old 1st Feb 2008, 09:06
  #24 (permalink)  
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Devil 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
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Old 1st Feb 2008, 11:10
  #25 (permalink)  
 
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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.
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Old 1st Feb 2008, 11:14
  #26 (permalink)  
 
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My B757 s engines died on fial approech SWARF FROM BOEING
This is contradictory to the story you gave yesterday, in which you said

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.
Am I the only person having trouble taking you seriously?
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Old 1st Feb 2008, 12:42
  #27 (permalink)  
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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,
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Old 1st Feb 2008, 13:07
  #28 (permalink)  
 
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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.
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Old 1st Feb 2008, 17:07
  #29 (permalink)  
 
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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.

Last edited by moggiee; 1st Feb 2008 at 17:37.
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Old 1st Feb 2008, 18:19
  #30 (permalink)  
 
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I couldn't find anything on the AAIB site.
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Old 1st Feb 2008, 22:34
  #31 (permalink)  
 
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nojh,

Lack of any sort of evidence makes your posts sound just a bit suspect. And swarf contamination would be a first on long flights, it seems.

Come clean.
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Old 1st Feb 2008, 22:44
  #32 (permalink)  
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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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Old 2nd Feb 2008, 02:06
  #33 (permalink)  
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Swarf, Engine or Engines ?

Aruba carribean Light blue 757 1990 UK reg.
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Old 2nd Feb 2008, 02:13
  #34 (permalink)  
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Flights to Sao p

Try Aruba Dutch Netherlands 1990
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Old 2nd Feb 2008, 02:52
  #35 (permalink)  
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AAIB Site

Blueup no accident hence no report,An incident is not an accident
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Old 2nd Feb 2008, 03:15
  #36 (permalink)  
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Angel 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.
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Old 2nd Feb 2008, 18:07
  #37 (permalink)  
 
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Originally Posted by nojh View Post
Now what evidence would you like ,should I send you the photographs ? I would if I knew your address
Go to www.photobucket.com , sign up for a FREE account, upload the evidence to that account and then post the links to those photos on this thread.

Easy.
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Old 3rd Feb 2008, 11:04
  #38 (permalink)  
 
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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
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Old 3rd Feb 2008, 17:11
  #39 (permalink)  
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Swarf Ni VIBES

Air ARuba engs said it was SWARF

Boeing Engs said it was SWARF
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Old 3rd Feb 2008, 17:28
  #40 (permalink)  
 
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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!
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