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Question - does this problem read across to CH-47s operated by other nations ?
Yes, defective, non-OEM O-rings resulting in fuel leaks. It's not clear whether those are ones fitted in the field (e.g. during an engine change) or during overhaul. Could be interesting trying to track usage ...
If they are using appropriate traceability, tracking should be a doddle.
Of course, it could never happen under the MAA regime
O-rings are incredibly complex. Getting the ring material right is critical to proper O-ring performance.
Years ago
- pre-internet - BA's 747 Classic Fleet started having occasional minor JT-9D engine instability in otherwise stable cruise. The usual cure of briefly putting on the engine anti-ice did not seem to work.
Eventually the problem was traced to fake o-rings in the engine fuel control unit. The fake o-rings were breaking up because they were made of the wrong material. However they were being purchased by BA, via their secure purchasing/suppliers list.
It turned out someone had hacked into the system and listed the fake brand as OK. Presumably someone thought faking o-rings was a money spinner.
tdracer may remember the case if it got back to Boeing. I never did learn if the problem was limited to BA or whether anyone within or without BA got done for it. Sounds as if an earlier scam may have resurrected itself.
'Couldn't happen here !'
To expand the question - Does this problem read across to any other aircraft type or engine, or to CH-47s operated by other nations ?
LFH
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