20090330003649I

Incident · No damage

FAA incident report · Doug DC983 · Omaha, NE · March 30, 2009

Date
March 30, 2009 · 21:52 local
Place
Omaha, NE
Airport
Eppley Airfield
Phase of flight
Cruise/Level Flight
Operating rules
Air carrier (Part 121)
Operator
AALA
Damage
No damage
Aircraft
N931TW
Reported as
Doug DC983
Reported engine
Pratt & Whitney JT8D*
People aboard
76
Fatal injuries
0
Other injuries
0
Pilot’s flight hours
0 total0 in this make and model0 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) N931TW - DC-9-83, was operated by American airlines as flight 1708, enroute from las to ord. The crew declared an emergency and diverted to oma due to a pressurzation problem. The crew reported that at FL250 upon entering weather the left pack failed. The heat spiked to full hot and the cabin altitude reached over 10,000. All masks deployed. The flight crew was using the left pack only because the right pack was deferred. Contract maintenance signed the aircraft off for a ferry flight to tul for maintenance. Company maintenance in tul replaced the left and right temperature control valves, and the water separator temperature control valve.

As the FAA filed it

(-23) N931TW - DC-9-83, WAS OPERATED BY AMERICAN AIRLINES AS FLIGHT 1708, ENROUTE FROM LAS TO ORD. THE CREW DECLARED AN EMERGENCY AND DIVERTED TO OMA DUE TO A PRESSURZATION PROBLEM. THE CREW REPORTED THAT AT FL250 UPON ENTERING WEATHER THE LEFT PACK FAILED. THE HEAT SPIKED TO FULL HOT AND THE CABIN ALTITUDE REACHED OVER 10,000. ALL MASKS DEPLOYED. THE FLIGHT CREW WAS USING THE LEFT PACK ONLY BECAUSE THE RIGHT PACK WAS DEFERRED. CONTRACT MAINTENANCE SIGNED THE AIRCRAFT OFF FOR A FERRY FLIGHT TO TUL FOR MAINTENANCE. COMPANY MAINTENANCE IN TUL REPLACED THE LEFT AND RIGHT TEMPERATURE CONTROL VALVES, AND THE WATER SEPARATOR TEMPERATURE CONTROL VALVE.

Other reports on N931TW · 1

Matched to the same aircraft by N-number and date.