Originally Posted by
Thruster763
No, one would not. It is a certification requirement that this does not happen in a survivable accident see FAR/CS 25.963 (d)
https://www.easa.europa.eu/sites/def...nt%2021%29.pdf
The BA38 crash would have be a different story if the B777 had not met theis requirement better. Its tanks dd of course have far less fuel in them, but there was no significant leakage.
Not sure about that "far less fuel" on board, because
6,750 kg of fuel did leak, and it was probably sheer luck that it did not ignite. To be precise, the fuel apparently did not leak from the tanks, but from the engine fuel pipe, until it was manually shut off. But almost 7 tonnes is quite a lot.
Look at Section 1.1 of the
official report:
After the aircraft came to rest there was a significant fuel leak from the engines. [...] Fuel continued to leak from the engine fuel pipes until the spar valves were manually closed
It should also be noted that the SuperJet
is EASA-certified according to CS.25. As far as I can tell, Ireland-based "CityJet" was (past tense) the only European operator, and there are currently none operating it under an EASA type certificate.
The relevant part of CS.25 is 25.963 (d):
Fuel tanks must, so far as it is practicable, be designed, located and installed so that no fuel is released in or near the fuselage or near the engines in quantities sufficient to start a serious fire in otherwise survivable emergency landing conditions, and:
[...]
(5) Fuel tank installations must be such that the tanks will not rupture as a result of an engine pylon or engine mount or landing gear, tearing away as specified in CS 25.721(a) and (c).
An associated paragraph in the AMC (acceptable means of compliance) has been revoked, however, so I don't know how that is typically tested. At any rate, the regulator must at one point have been satisfied that compliance with 25.963 was achieved.
However, it could be argued based on this accident, that it violated this certification specification, because quite clearly "quantities sufficient to start a serious fire" did leak in an evidently otherwise survivable emergency landing.
Bernd