344.How many levels of ice detection are provided ?

317.Is it possible to stow the Ram Air Turbine in flight ?

316.In normal operation, what is the blue hydraulic system pressurized by ?

315.Which hydraulic systems are pressurized by an engine driven pump ?

314.What happens if a High level is detected ?

313.In which cells are full level sensors fitted ?

312.What is the purpose of the IDG SHUT-OFF sensor ?

311.What happens when a low level is detcted in the Inner cell ?

310.What happens if a quantity probe (other than 13 or 14) fails?

309.What happens if one channel of the FQIC fails ?

308.What is the purpose of the fuel drain valve ?