A P180's cabin pressure light alerted climbing through FL230 so an emergency was declared and during...

Attributes
ACN	1004180
Time
Date	201204
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	P180 Avanti
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	Vectors
Flight Plan	IFR
Component
Aircraft Component	Pressurization Control System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 3800 Flight Crew Type 3000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Climbing out of 23;000 we experienced a cabin pressure light as a result of an auto pressurization mode failure. We notified ATC and declared an emergency as a precaution; they cleared us down to 10;000 and we began a rapid descent. In the descent we selected manual pressurization mode and the cherry picker down per the QRH. Through 15;000 MSL the cabin pressure light extinguished; the cabin began to descend and stabilize as a result of the manual mode selection. We leveled off at 10;000 and the cabin stabilized to normal in the manual mode. We informed ATC the situation was resolved and canceled our emergency. With the cabin pressurization operating normally in manual mode we continued to our filed destination at 10;000. Our continuation was arranged via specific permission from approach with acknowledgment of our emergency cancellation.

Original NASA ASRS Text

Title: A P180's Cabin Pressure Light alerted climbing through FL230 so an emergency was declared and during descent the Manual Mode selection restored normal pressurization. The emergency was canceled and the flight continued at 10;000 FT.

Narrative: Climbing out of 23;000 we experienced a Cabin Pressure Light as a result of an Auto Pressurization Mode failure. We notified ATC and declared an emergency as a precaution; they cleared us down to 10;000 and we began a rapid descent. In the descent we selected Manual Pressurization Mode and the Cherry Picker down per the QRH. Through 15;000 MSL the Cabin Pressure Light extinguished; the cabin began to descend and stabilize as a result of the Manual Mode selection. We leveled off at 10;000 and the cabin stabilized to normal in the Manual Mode. We informed ATC the situation was resolved and canceled our emergency. With the cabin pressurization operating normally in Manual Mode we continued to our filed destination at 10;000. Our continuation was arranged via specific permission from Approach with acknowledgment of our emergency cancellation.

Data retrieved from NASA's ASRS site as of July 2013 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 P180's cabin pressure light alerted climbing through FL230 so an emergency was declared and during descent the manual mode selection restored normal pressurization. The emergency was canceled and the flight continued at 10;000 ft.