Pressurization loss in a freight operation over waco, tx.

Attributes
ACN	479810
Time
Date	200007
Place
State Reference	TX
Altitude	msl single value : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc artcc : egtt.artcc
Operator	common carrier : air taxi
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 135
Navigation In Use	other vortac
Flight Phase	climbout : vacating altitude
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : cfi
Experience	flight time last 90 days : 153 flight time total : 2160 flight time type : 376
ASRS Report	479810
Person 2
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : cab alt warning other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Climbing sbound through FL240, failure of the aircraft's pressurization occurred. An emergency was declared with an immediate descent to 10000 ft. The problem was discovered through the routine monitoring of indicating system, then with cockpit warnings (visual and aural). Attempts to correct the problem manually were unsuccessful.

Original NASA ASRS Text

Title: PRESSURIZATION LOSS IN A FREIGHT OP OVER WACO, TX.

Narrative: CLBING SBOUND THROUGH FL240, FAILURE OF THE ACFT'S PRESSURIZATION OCCURRED. AN EMER WAS DECLARED WITH AN IMMEDIATE DSCNT TO 10000 FT. THE PROB WAS DISCOVERED THROUGH THE ROUTINE MONITORING OF INDICATING SYS, THEN WITH COCKPIT WARNINGS (VISUAL AND AURAL). ATTEMPTS TO CORRECT THE PROB MANUALLY WERE UNSUCCESSFUL.

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.