G3 flight crew has cabin door warning during cruise, declares an emergency and diverts to publicatio...

Attributes
ACN	572213
Time
Date	200301
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pub.airport
State Reference	CO
Altitude	msl single value : 43000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv.artcc
Operator	general aviation : corporate
Make Model Name	Gulfstream III
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 20 flight time total : 8000 flight time type : 10
ASRS Report	572213
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : master caution 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	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

Aircraft was cruising at FL430 when the cabin door light came on along with the master caution. The controller was advised of the problem and that we needed a descent 'now.' he said 'stand by.' we started a descent and declared an emergency. We were advised that publication was the nearest suitable airport. We were vectored to publication and terminated our emergency at 14000 ft. After landing the aircraft, a mechanic discovered a malfunctioning door switch.

Original NASA ASRS Text

Title: G3 FLT CREW HAS CABIN DOOR WARNING DURING CRUISE, DECLARES AN EMER AND DIVERTS TO PUB.

Narrative: ACFT WAS CRUISING AT FL430 WHEN THE CABIN DOOR LIGHT CAME ON ALONG WITH THE MASTER CAUTION. THE CTLR WAS ADVISED OF THE PROB AND THAT WE NEEDED A DSCNT 'NOW.' HE SAID 'STAND BY.' WE STARTED A DSCNT AND DECLARED AN EMER. WE WERE ADVISED THAT PUB WAS THE NEAREST SUITABLE ARPT. WE WERE VECTORED TO PUB AND TERMINATED OUR EMER AT 14000 FT. AFTER LNDG THE ACFT, A MECH DISCOVERED A MALFUNCTIONING DOOR SWITCH.

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.

G3 flight crew has cabin door warning during cruise, declares an emergency and diverts to publication.