What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) American airlines flight 781 enroute from dallas, TX to Omaha, NE, climbing thru FL240 the tail compartment temperature warning light illuminated climbing thru FL240. The crew turned off the left airconditioning pack and began a slow descent. The system was unable to maintain cabin pressure on the right pack above 17,000. The aircraft landed without incident. Contract maintenance found the right airconditioning pack bad and deferred it per MEL 21-1A.
As the FAA filed it
(-23) AMERICAN AIRLINES FLIGHT 781 ENROUTE FROM DALLAS, TX TO OMAHA, NE, CLIMBING THRU FL240 THE TAIL COMPARTMENT TEMPERATURE WARNING LIGHT ILLUMINATED CLIMBING THRU FL240. THE CREW TURNED OFF THE LEFT AIRCONDITIONING PACK AND BEGAN A SLOW DESCENT. THE SYSTEM WAS UNABLE TO MAINTAIN CABIN PRESSURE ON THE RIGHT PACK ABOVE 17,000. THE AIRCRAFT LANDED WITHOUT INCIDENT. CONTRACT MAINTENANCE FOUND THE RIGHT AIRCONDITIONING PACK BAD AND DEFERRED IT PER MEL 21-1A.
Other reports on N479AA · 2
Matched to the same aircraft by N-number and date.