Originally Posted by
phil gollin
(PART TWO of TWO)
“4.3 Safety Recommendation 2008-048: It is recommended that the Federal Aviation Administration and the European Aviation Safety Agency should take immediate action to Consider the implications of the findings of this investigation on other certificated airframe / engine combinations.
4.4 Safety Recommendation 2008-049:It is recommended that the Federal Aviation Administration and the European Aviation Safety Agency review the current certification requirements to ensure that aircraft and engine fuel systems are tolerant to the potential build up and sudden release of ice in the fuel feed systems.
This is the BIG ISSUE. The tests were unrepresentative and the icing phenomena not properly explained. What needs to be done is the science to understand the icing and ALL airframe/engine combinations tested.
Agreed. Perhaps more importantly, these safety recommendations were made 18months ago, one as "take immediate action".
So, what have the regulatory authorities done ?
1. nothing
2. considered and decided the risk is too low / the cost is too high to be bothered doing anything
3. started research program
I'd bet on 1 or maybe 2 - and that isn't the fault of the AAIB. They don't (I believe) have remit or funding to go investigating this phenomenon beyond this accident circustances.