Bruce.
This contoversial checklist has `evolved` somewhat. The Air Transat incident was in Aug 2001.
Airbus QRH circa 1995 for A330
WHEN A LEAK IS CONFIRMED
* LEAK FROM ENGINE
Shut down the engine
* LEAK FROM WING TIP or LEAK NOT LOCALISED
Leak from wing surge tank may be due to fuel feed duct rupture leading to one tank overfilled.
- WING X FEED MAINTAIN CLOSED
- DESCENT TO GRAVITY CEILING
Refer to FUEL GRVTY PROC
- ALL TK PUMPS OFF
Ammended QRH circa 2004
WHEN A LEAK IS CONFIRMED LAND ASAP
* LEAK FROM ENGINR
This procedure must be applied, if it is positively identified that the leak is coming from the engine.
- THR LEVER (of affected engine) IDLE
-ENG MASTER (of affected engine) OFF
- FUEL X FEED AS REQD
The Xfeed valve can now be selected open for rebalancing or to allow use of the fuel from both wings. Do not restart the engine.
LEAK NOT FROM ENGINE or LEAK NOT LOCATED
- FUEL X FEED AUTO
The fuel crossfeed must remain closed to prevent the leak from affecting both sides. Selecting auto maintains the crossfeed valve closed.
- L and R INR TK SPLIT ON
L+R INR SPLIT ON splits the inner tank into two parts to minimise fuel loss in case of an engine rotor burst.
- T TANK MODE (if not empty) FWD
A manual trim transfer, must be done, to avoid automatic transfer to only the least full inner tank.
DESCEND TO GRAVITY FUEL FEEDING CEILING
Refer to Gravity Fuel feeding procedure.
When Trim Tank empty:
-T TANK MODE AUTO
-T TANK FEED ISOL
-ENG START SEL IGN
Flight conditions at the time of gravity feed ceiling:
- FUEL DEAERATED
Flight time from take-off > 30 min), FL200
- FUEL NON-DEAERATED
Flight time from take-off < 30 min), FL 150
- ALL TK PUMPS (when gravity ceiling reached) OFF
In almost all cases, switching the pumps off will prevent any further loss of fuel. All pumps must be switched off, even if the leak is from one wing only, as there are some failures on one side that will result in fuel loss from the other side.
-AVOID NEGATIVE G FACTOR
Caution: Do not open the FUEL XFEED even if requested by another ECAM procedure. Do not apply the FUEL IMBALANCE procedure. Even with one inner tank full/one inner tank empty, no special procedure is required for approach and landing.
* If one engine flames out when there is still fuel in the feeding tank:
- ALL TK PUMPS ON
-LEAK FROM ENGINE proc. APPLY
Note: The flame out is due to air suction from a leak from the engine.
So, as can be seen, this checklist is a bit `punchy` and not one I would relish tackling well away from suitable diversion airfield. The biggest mystery to me remains as to why the crew thought that opening the crossfeed was of any use to them. In fact if they had done NO checklists at all, the outcome would have been much more benign.
Judging from your checklist copy, Bruce, it would seem that it is up to the individual operators as to the amount of additional notes that are given to crews.