<< >> NASA ASRS Report 481904, August 2000

An embraer 145 in climb at FL239 diverted due to EICAS #2 bleed leak and baggage smoke warning caused by a loose, leaking duct clamp.

Attributes
ACN	481904
Time
Date	200008
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : jan.airport
State Reference	MS
Altitude	msl bound lower : 13000 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zme.artcc
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : j22 ztl.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 265 flight time total : 4260 flight time type : 1950
ASRS Report	481904
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	aircraft equipment other aircraft equipment : eicas smoke warning other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On climb through approximately 13000-15000 ft, EICAS momentary indication of #2 bleed leak (approximately 1 second or less) and baggage smoke indication. Baggage smoke indication disappeared after 15 seconds. This was followed by EICAS indication of #1 bleed leak. Appropriate QRH (abnormal) checklists were completed, and company maintenance was called on company SELCAL frequency. Flight attendant advised us of hot aft lavatory condition. Captain investigated, and found same, with very hot aft lavatory bulkhead. There were no EICAS indications of baggage smoke at this time. Aircraft immediately diverted to jackson, ms. Company maintenance traced the cause of the problem to a leaking clamp on the #2 bleed line, which disconnected the associated bleed leak sensor wiring, accounting for the lack of EICAS indication of #2 bleed leak.

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Original NASA ASRS Text

Title: AN EMBRAER 145 IN CLB AT FL239 DIVERTED DUE TO EICAS #2 BLEED LEAK AND BAGGAGE SMOKE WARNING CAUSED BY A LOOSE, LEAKING DUCT CLAMP.

Narrative: ON CLB THROUGH APPROX 13000-15000 FT, EICAS MOMENTARY INDICATION OF #2 BLEED LEAK (APPROX 1 SECOND OR LESS) AND BAGGAGE SMOKE INDICATION. BAGGAGE SMOKE INDICATION DISAPPEARED AFTER 15 SECONDS. THIS WAS FOLLOWED BY EICAS INDICATION OF #1 BLEED LEAK. APPROPRIATE QRH (ABNORMAL) CHKLISTS WERE COMPLETED, AND COMPANY MAINT WAS CALLED ON COMPANY SELCAL FREQ. FLT ATTENDANT ADVISED US OF HOT AFT LAVATORY CONDITION. CAPT INVESTIGATED, AND FOUND SAME, WITH VERY HOT AFT LAVATORY BULKHEAD. THERE WERE NO EICAS INDICATIONS OF BAGGAGE SMOKE AT THIS TIME. ACFT IMMEDIATELY DIVERTED TO JACKSON, MS. COMPANY MAINT TRACED THE CAUSE OF THE PROB TO A LEAKING CLAMP ON THE #2 BLEED LINE, WHICH DISCONNECTED THE ASSOCIATED BLEED LEAK SENSOR WIRING, ACCOUNTING FOR THE LACK OF EICAS INDICATION OF #2 BLEED LEAK.

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.