A B757 crew diverts to nqx NAS near eyw when smoke starts to fill the cabin.

Attributes
ACN	442847
Time
Date	199907
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : nqx.airport
State Reference	FL
Altitude	msl single value : 39000
Aircraft 1
Controlling Facilities	artcc : zma.artcc
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude cruise : level
Route In Use	enroute : direct enroute : other oceanic
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	442847
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : military
ASRS Report	442848
Events
Anomaly	aircraft equipment problem : critical cabin event other
Independent Detector	aircraft equipment other aircraft equipment : smoke/detect/lav other other : cab 4
Resolutory Action	aircraft : equipment problem dissipated flight crew : landed in emergency condition flight crew : diverted to another airport flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Location: canoa. After takeoff, smelled odor in cabin, unknown source. Climbed to FL390, mach .80, 20 mi from canoa. Aft cabin flight attendant called, said smoke detector in aft lavatory was going off. The captain left cockpit to investigate, could see some smoke in first class, went to main cabin and could see more smoke in aft cabin. On return to cockpit mid-cabin lavatory smoke detector went off. Returned to cockpit, requested direct to eyw and started a descent. Completed smoke in the cabin checklist, descent and landing checklist. Not an overweight landing 185000 pounds. Requested fire and crash to standby. After normal landing stopped on runway and had aircraft checked by fire crew. After landing flight attendant informed us the smoke was gone. Taxied clear and parked aircraft. WX was clear, landing at nqx on runway 7.

Original NASA ASRS Text

Title: A B757 CREW DIVERTS TO NQX NAS NEAR EYW WHEN SMOKE STARTS TO FILL THE CABIN.

Narrative: LOCATION: CANOA. AFTER TKOF, SMELLED ODOR IN CABIN, UNKNOWN SOURCE. CLBED TO FL390, MACH .80, 20 MI FROM CANOA. AFT CABIN FLT ATTENDANT CALLED, SAID SMOKE DETECTOR IN AFT LAVATORY WAS GOING OFF. THE CAPT LEFT COCKPIT TO INVESTIGATE, COULD SEE SOME SMOKE IN FIRST CLASS, WENT TO MAIN CABIN AND COULD SEE MORE SMOKE IN AFT CABIN. ON RETURN TO COCKPIT MID-CABIN LAVATORY SMOKE DETECTOR WENT OFF. RETURNED TO COCKPIT, REQUESTED DIRECT TO EYW AND STARTED A DSCNT. COMPLETED SMOKE IN THE CABIN CHKLIST, DSCNT AND LNDG CHKLIST. NOT AN OVERWT LNDG 185000 LBS. REQUESTED FIRE AND CRASH TO STANDBY. AFTER NORMAL LNDG STOPPED ON RWY AND HAD ACFT CHKED BY FIRE CREW. AFTER LNDG FLT ATTENDANT INFORMED US THE SMOKE WAS GONE. TAXIED CLR AND PARKED ACFT. WX WAS CLR, LNDG AT NQX ON RWY 7.

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.