A BE400 crew, departing atl, experienced a loss of cabin pressure climbing through FL240, returned t...

Attributes
ACN	533918
Time
Date	200112
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ztl.artcc
State Reference	GA
Altitude	msl single value : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl.artcc tower : phl.tower
Operator	general aviation : personal
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Flight Phase	climbout : vacating altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : ztl.artcc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 262 flight time total : 5336 flight time type : 1061
ASRS Report	533918
Person 2
Affiliation	other
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : cab alt indiertor other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : declared emergency flight crew : diverted to another airport flight crew : landed as precaution
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Climbing through FL240, experienced loss of cabin pressurization. Initiated emergency memory items and requested emergency descent form ZTL. Request granted immediately to descend to 11000 ft. Initiated emergency descent including turn per aircraft standard procedures. Later notified by center that our aircraft was with 20 seconds of an air carrier airliner at one point in descent. No visual contact. No known evasive maneuvers were necessary.

Original NASA ASRS Text

Title: A BE400 CREW, DEPARTING ATL, EXPERIENCED A LOSS OF CABIN PRESSURE CLBING THROUGH FL240, RETURNED TO ATL.

Narrative: CLBING THROUGH FL240, EXPERIENCED LOSS OF CABIN PRESSURIZATION. INITIATED EMER MEMORY ITEMS AND REQUESTED EMER DSCNT FORM ZTL. REQUEST GRANTED IMMEDIATELY TO DSND TO 11000 FT. INITIATED EMER DSCNT INCLUDING TURN PER ACFT STANDARD PROCS. LATER NOTIFIED BY CTR THAT OUR ACFT WAS WITH 20 SECONDS OF AN ACR AIRLINER AT ONE POINT IN DSCNT. NO VISUAL CONTACT. NO KNOWN EVASIVE MANEUVERS WERE NECESSARY.

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.

A BE400 crew, departing atl, experienced a loss of cabin pressure climbing through FL240, returned to atl.