<< >> NASA ASRS Report 477910, June 2000

A gulfstream III on initial climb declared an emergency and diverted due to loss of cabin pressure caused by a separated pneumatic duct.

Attributes
ACN	477910
Time
Date	200006
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bur.airport
State Reference	CA
Altitude	msl bound lower : 0 msl bound upper : 4500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Gulfstream III
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	climbout : initial
Route In Use	departure : other published ifr departure
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 : 75 flight time total : 10950 flight time type : 4000
ASRS Report	477910
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : cfi pilot : atp
Experience	flight time last 90 days : 120 flight time total : 8900 flight time type : 2100
ASRS Report	477899
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : cabin pressure indication other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : declared emergency flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Departed bur and quickly noticed cabin becoming hot and no cool air coming from gaspers. Cabin altitude was noticed to be climbing with aircraft. Insured bleed and pressurization switches were in proper places. Tried air data computer #2 in case air data computer #1 was faulty. Requested return to airport. Left electrical converter shut down by itself. An emergency was declared, proper checklists completed and uneventful landing made. Bleed air duct was found to have separated in tail compartment. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a gulfstream 111 with rolls royce spey engines. The reporter said the loss of cabin pressure was caused by a tail compartment pneumatic duct separation. The reporter said no tail compartment overheat warning was experienced.

Related reports:

• Gulfstream V first officer reported a cabin pressurization a...
• A gulfstream G2B cpr aircraft experienced complete pressuriz...
• Gulfstream 4 makes emergency nosegear up landing at iad, va.
• Gulfstream G11B flight crew has a bird ingested in the left ...
• A gulfstream 11 in climb at 14000 ft declared an emergency a...
• A gulfstream galaxy flight crew declared an emergency and la...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A GULFSTREAM III ON INITIAL CLB DECLARED AN EMER AND DIVERTED DUE TO LOSS OF CABIN PRESSURE CAUSED BY A SEPARATED PNEUMATIC DUCT.

Narrative: DEPARTED BUR AND QUICKLY NOTICED CABIN BECOMING HOT AND NO COOL AIR COMING FROM GASPERS. CABIN ALT WAS NOTICED TO BE CLBING WITH ACFT. INSURED BLEED AND PRESSURIZATION SWITCHES WERE IN PROPER PLACES. TRIED ADC #2 IN CASE ADC #1 WAS FAULTY. REQUESTED RETURN TO ARPT. L ELECTRICAL CONVERTER SHUT DOWN BY ITSELF. AN EMER WAS DECLARED, PROPER CHKLISTS COMPLETED AND UNEVENTFUL LNDG MADE. BLEED AIR DUCT WAS FOUND TO HAVE SEPARATED IN TAIL COMPARTMENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A GULFSTREAM 111 WITH ROLLS ROYCE SPEY ENGS. THE RPTR SAID THE LOSS OF CABIN PRESSURE WAS CAUSED BY A TAIL COMPARTMENT PNEUMATIC DUCT SEPARATION. THE RPTR SAID NO TAIL COMPARTMENT OVERHEAT WARNING WAS EXPERIENCED.

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.