An A300 ECAM alerted mid 1 main deck loop a off during approach so the loop was turned off and teste...

Attributes
ACN	1180322
Time
Date	201406
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	A300
Operating Under FAR Part	Part 121
Flight Phase	Final Approach Initial Approach Landing
Route In Use	Other Controlled
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning Distribution System
Person 1
Function	Pilot Not Flying First Officer
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 12000 Flight Crew Type 500
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 80 Flight Crew Total 10000 Flight Crew Type 4000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

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 as soon as possible. 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.

Original NASA ASRS Text

Title: 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.

Narrative: 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.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

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.