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A flight crew, climbing through 14000 ft, experienced the cabin altitude warning horn. The result of not turning on the air conditioning packs.
| Attributes | |
| ACN | 529522 |
| Time | |
| Date | 200109 |
| Day | Fri |
| Place | |
| Locale Reference | airport : clt.airport |
| State Reference | NC |
| Altitude | msl bound lower : 0 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc tower : mem.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 25 flight time total : 4200 flight time type : 150 |
| ASRS Report | 529522 |
| Person 2 | |
| Affiliation | company : air carrier government : faa |
| Function | controller : radar flight crew : captain oversight : pic |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : company policies non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : cabin alt horn other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
The aircraft took off without air conditioning packs on. Climbing to approximately 14000 ft, cleared to FL180, the cabin altitude horn came on. The crew noticed packs were not on and switched them on, donning oxygen masks. Asked ATC for descent to 10000 ft. Crew followed up with cabin pressurization checklist. Cleared to 11000 ft, then 10000 ft. After re-establishing cabin pressure, requested higher altitude, cleared to 12000 ft. The problem arose due to the crew not catching error in the after start and climb checklist. The crew was well rested and not rushed. We held off runway, 5 mins prior to takeoff while airport conducted runway search for a reported bird. The first officer had been out of the cockpit for over 60 days prior to starting this rotation and was the first leg as PNF.
Original NASA ASRS Text
Title: A FLC, CLBING THROUGH 14000 FT, EXPERIENCED THE CABIN ALT WARNING HORN. THE RESULT OF NOT TURNING ON THE AIR CONDITIONING PACKS.
Narrative: THE ACFT TOOK OFF WITHOUT AIR CONDITIONING PACKS ON. CLBING TO APPROX 14000 FT, CLRED TO FL180, THE CABIN ALT HORN CAME ON. THE CREW NOTICED PACKS WERE NOT ON AND SWITCHED THEM ON, DONNING OXYGEN MASKS. ASKED ATC FOR DSCNT TO 10000 FT. CREW FOLLOWED UP WITH CABIN PRESSURIZATION CHKLIST. CLRED TO 11000 FT, THEN 10000 FT. AFTER RE-ESTABLISHING CABIN PRESSURE, REQUESTED HIGHER ALT, CLRED TO 12000 FT. THE PROB AROSE DUE TO THE CREW NOT CATCHING ERROR IN THE AFTER START AND CLB CHKLIST. THE CREW WAS WELL RESTED AND NOT RUSHED. WE HELD OFF RWY, 5 MINS PRIOR TO TKOF WHILE ARPT CONDUCTED RWY SEARCH FOR A RPTED BIRD. THE FO HAD BEEN OUT OF THE COCKPIT FOR OVER 60 DAYS PRIOR TO STARTING THIS ROTATION AND WAS THE FIRST LEG AS PNF.
Data retrieved from NASA's ASRS site as of July 2007 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.