Appendix 2 - Suggested Checklist for Flight Crew in dealing with an in-flight emergency involving Dangerous Goods
• Follow appropriate aircraft emergency procedures for fire/smoke removal
• No smoking sign on
• If smoke/fumes detectable
- don goggles and oxygen masks, with oxygen at 100%
- set air conditioning to maximum flow, no recirculation
• If incident in passenger cabin
- detail cabin crew to take initial action, using cabin crew checklist
- establish co-ordinated action between cabin and flight crew
• If fire/smoke in inaccessible hold, check for dangerous goods using NOTOC
• Identify item, if possible by
- consulting NOTOC, making visual check, asking passenger
• If goods not accessible, consider likely involvement in incident
• If identified, check for name or number in Emergency Response Guidance
• If listed in Emergency Response Guidance, determine drill code
• Use drill code to decide on suitable action
• If item on fire or producing visible smoke
- break open package, if necessary and safe to do, for effectiveness of fire-fighting agent
- use fire extinguisher (but do not use water unless this is known to be safe)
- check fire is out, but be prepared for re-ignition
• If item is leaking (if using Emergency Response Kit – see appropriate Checklist)
- avoid contact; always use personal protective equipment – e.g. gloves, goggles,
- stop leak, if possible by plugging hold and/or inverting package
- if possible, place package in polyethylene bag and close securely
- place package in safe location, e.g. a toilet, or isolate from other cargo; and restrain
- remove or contain leakage (but see Notes)
• If risk of explosion
- maximum altitude – 10,000 ft or MEA, whichever is the higher
- reduce cabin pressure differential to 1 psi maximum
• Landing as soon as possible
• Turning off non-essential electrical power
• Use NOTOC to notify ATC of dangerous goods on board in cargo
• Disembark passengers and crew
- for hold incident – before opening any cargo hold doors
- for cabin incident – so affected area not traversed
• Inform ground personnel/emergency services of nature of item and where stowed
• Make appropriate entry in maintenance log
1) For a limited period polyethylene (plastic) should not react with any dangerous goods.
2) Powders may be better left in situ if not causing damage; if removal needed they can be picked up using safety cards of stiffened polyethylene/plastic based material.
3) Use extreme caution with unknown liquids; they may be better left in situ and covered with polyethylene/plastic based material. Do not use paper or cloth to mop up spillage unless certain there will be no reaction.
4) There may be visible or invisible fumes. If there is smoke, SMOKE warnings may be triggered.
5) If contamination within the air conditioning system AVIONICS SMOKE, MIN EQT BAY SMOKE or BAT SMOKE warnings may be triggered simultaneously. Apply AIR COND SMOKE procedure only if visible smoke or strong fumes present.
6) Ensure crew communication established. Avoid use of interphone position to minimise interference from oxygen mask breathing noise.
7) It is recommended to set the EMERGENCY pressure selector to overpressure position.
8) It is recommended to switch CAB FANS to OFF, to prevent recirculation of contaminated cabin air.