A300
Flight Crew Last 90 Days 50; Flight Crew Total 12000; Flight Crew Type 500
Workload; Troubleshooting; Time Pressure; Distraction
Aircraft Equipment Problem Critical
Flight Crew Took Evasive Action; Flight Crew FLC complied w / Automation / Advisory; Flight Crew Landed in Emergency Condition; General Maintenance Action; General Declared Emergency
Aircraft
Enroute received Mid 1 Main Deck Loop A OFF annunciator light on the STAR entering downwind. Captain performed the QRH procedures. I was flying until final approach. On downwind we also got multiple fault lights; PACK 2 FAULT; ISOLATION VALVE FAULT; OVERHEAT FAULT; HOT AIR FAULT. The mid cargo duct temp rose from 160 to over 186+ degrees. On downwind and the close proximity to our destination; we asked for priority handling to get on the deck ASAP. On final we noticed the mid cargo duct temp rising rapidly from 160 to 186+. Not knowing exactly what was going on in the cargo bay and with multiple faults; excessive duct temps and a loop failure; we declared an emergency. Captain took controls and landed uneventfully. The fire trucks followed us to off duty runway and recorded some excessive heat readings on their equipment. They cleared us to taxi to the ramp and thoroughly examined the aircraft after shut down.
We performed QRH procedure Main deck Cargo Loop Fault. Selected LOOP A OFF and performed Loop Test. We did not observe a Smoke light and as per checklist.
An A300 ECAM alerted MID 1 MAIN DECK LOOP A OFF during approach so the loop was turned OFF and tested. No smoke was detected but the mid cargo temperature was rising with numerous fault lights: PACK 2; ISOLATION VALVE; OVERHEAT; HOT AIR. An emergency was declared before landing.