<< >> NASA ASRS Report 438506, May 1999

Air carrier flight crew flying BAE4101 from tys to iad declared an emergency and landed at an alternate airport after a pod smoke light became illuminated indicating smoke in the ventral baggage bay.

Attributes
ACN	438506
Time
Date	199905
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ztl.artcc
State Reference	GA
Altitude	msl single value : 21000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl.artcc
Operator	common carrier : air carrier
Make Model Name	Jetstream 41
Operating Under FAR Part	Part 119
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 1500 flight time total : 6500 flight time type : 200
ASRS Report	438506
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : bag smoke sensor other flight crewa
Resolutory Action	controller : issued new clearance flight crew : declared emergency flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

During cruise flight at FL210 from tys to iad, a pod smoke light illuminated indicating smoke in the ventral baggage bay, which is not accessible from the main cabin. The appropriate checklist was performed, an emergency was declared with ATC, and a diversion to tri airport was accomplished. The crash fire rescue equipment team inspected the pod and found the warning light was erroneous. No evacuate/evacuation was initiated per the checklist. There were no injuries and there was no damage to the aircraft. This sensor produces false indications during high humidity. Perhaps another type of sensor should be used.

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Original NASA ASRS Text

Title: ACR FLC FLYING BAE4101 FROM TYS TO IAD DECLARED AN EMER AND LANDED AT AN ALTERNATE ARPT AFTER A POD SMOKE LIGHT BECAME ILLUMINATED INDICATING SMOKE IN THE VENTRAL BAGGAGE BAY.

Narrative: DURING CRUISE FLT AT FL210 FROM TYS TO IAD, A POD SMOKE LIGHT ILLUMINATED INDICATING SMOKE IN THE VENTRAL BAGGAGE BAY, WHICH IS NOT ACCESSIBLE FROM THE MAIN CABIN. THE APPROPRIATE CHKLIST WAS PERFORMED, AN EMER WAS DECLARED WITH ATC, AND A DIVERSION TO TRI ARPT WAS ACCOMPLISHED. THE CFR TEAM INSPECTED THE POD AND FOUND THE WARNING LIGHT WAS ERRONEOUS. NO EVAC WAS INITIATED PER THE CHKLIST. THERE WERE NO INJURIES AND THERE WAS NO DAMAGE TO THE ACFT. THIS SENSOR PRODUCES FALSE INDICATIONS DURING HIGH HUMIDITY. PERHAPS ANOTHER TYPE OF SENSOR SHOULD BE USED.

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.