EMB145 flight crew has smoke in the cabin during climb out, declares an emergency and returns to day...

Attributes
ACN	595073
Time
Date	200309
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : day.airport
State Reference	OH
Altitude	msl single value : 3500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : day.tracon
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	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 150 flight time total : 3100 flight time type : 1000
ASRS Report	595072
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	aircraft equipment other aircraft equipment : lav smoke warning light other flight crewa other flight crewb other other : 3
Resolutory Action	flight crew : landed in emergency condition flight crew : declared emergency flight crew : diverted to another airport other
Consequence	other
Supplementary
Problem Areas	Cabin Crew Human Performance Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

While climbing out of dayton, a loud bang was heard followed by the 'lavatory' smoke master warning. Flight attendant called to advise us of smoke in the cabin. We declared an emergency and initiated a return to the field. Flight attendant was asked if she could see any signs of a fire in the lavatory and she said no. On short final, an 'engine #2 bleed leak' warning was receiving after which the first officer deselected the #2 engine bleed. After landing, we stopped on the runway to assess the situation in the cabin and we were advised by the flight attendant that she had the passenger under control and that the smoke had diminished. Once we reached the gate area, we were advised by the flight attendant that the smoke was getting worse, so I made the decision to evacuate/evacuation the aircraft utilizing all exits. 50 passenger, 3 crew and 1 jumpseater were deplaned without incident. Cause of the noise and perceived smoke was a ruptured high pressure bleed line running under the floor boards, resulting in dust and insulation being forced around the cabin. Reducing visibility and making it hard to breath for the passenger.

Original NASA ASRS Text

Title: EMB145 FLT CREW HAS SMOKE IN THE CABIN DURING CLBOUT, DECLARES AN EMER AND RETURNS TO DAY.

Narrative: WHILE CLBING OUT OF DAYTON, A LOUD BANG WAS HEARD FOLLOWED BY THE 'LAVATORY' SMOKE MASTER WARNING. FLT ATTENDANT CALLED TO ADVISE US OF SMOKE IN THE CABIN. WE DECLARED AN EMER AND INITIATED A RETURN TO THE FIELD. FLT ATTENDANT WAS ASKED IF SHE COULD SEE ANY SIGNS OF A FIRE IN THE LAVATORY AND SHE SAID NO. ON SHORT FINAL, AN 'ENG #2 BLEED LEAK' WARNING WAS RECEIVING AFTER WHICH THE FO DESELECTED THE #2 ENG BLEED. AFTER LNDG, WE STOPPED ON THE RWY TO ASSESS THE SIT IN THE CABIN AND WE WERE ADVISED BY THE FLT ATTENDANT THAT SHE HAD THE PAX UNDER CTL AND THAT THE SMOKE HAD DIMINISHED. ONCE WE REACHED THE GATE AREA, WE WERE ADVISED BY THE FLT ATTENDANT THAT THE SMOKE WAS GETTING WORSE, SO I MADE THE DECISION TO EVAC THE ACFT UTILIZING ALL EXITS. 50 PAX, 3 CREW AND 1 JUMPSEATER WERE DEPLANED WITHOUT INCIDENT. CAUSE OF THE NOISE AND PERCEIVED SMOKE WAS A RUPTURED HIGH PRESSURE BLEED LINE RUNNING UNDER THE FLOOR BOARDS, RESULTING IN DUST AND INSULATION BEING FORCED AROUND THE CABIN. REDUCING VISIBILITY AND MAKING IT HARD TO BREATH FOR THE PAX.

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.