Cabin attendant aboard B777 reports vibration. Buzzing sound and momentary smoke in cabin.

Attributes
ACN	579082
Time
Date	200303
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zny.artcc
State Reference	NY
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny.artcc
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight attendant : on duty
Qualification	flight attendant : currently qualified
Experience	flight attendant time airline total : 4 flight attendant time total : 4 flight attendant time type : 65
ASRS Report	579082
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe cabin event other other anomaly
Independent Detector	other other : 5 cab attendant
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Environmental Factor Aircraft
Primary Problem	Aircraft

Narrative:

I returned from a break and was informed by #4 that a loud buzzing noise was heard by seats in 12TH row and a vibration could be felt, then a burning smell. Smoke was seen for a few seconds, but it dissipated quickly. The pilots had been informed. The flight attendants were to continue monitoring and reporting the situation. During our second service, I too could feel the strong vibration and hear the noise around row 12. I called pilots to inform them. Soon, the first officer came back to assess. The pilots thought it was air conditioning packs causing this. We were given priority landing clearance and met by fire trucks and emt vehicles. Passenger were calm during this. We and pilots kept them informed.

Original NASA ASRS Text

Title: CABIN ATTENDANT ABOARD B777 RPTS VIBRATION. BUZZING SOUND AND MOMENTARY SMOKE IN CABIN.

Narrative: I RETURNED FROM A BREAK AND WAS INFORMED BY #4 THAT A LOUD BUZZING NOISE WAS HEARD BY SEATS IN 12TH ROW AND A VIBRATION COULD BE FELT, THEN A BURNING SMELL. SMOKE WAS SEEN FOR A FEW SECONDS, BUT IT DISSIPATED QUICKLY. THE PLTS HAD BEEN INFORMED. THE FLT ATTENDANTS WERE TO CONTINUE MONITORING AND RPTING THE SIT. DURING OUR SECOND SVC, I TOO COULD FEEL THE STRONG VIBRATION AND HEAR THE NOISE AROUND ROW 12. I CALLED PLTS TO INFORM THEM. SOON, THE FO CAME BACK TO ASSESS. THE PLTS THOUGHT IT WAS AIR CONDITIONING PACKS CAUSING THIS. WE WERE GIVEN PRIORITY LNDG CLRNC AND MET BY FIRE TRUCKS AND EMT VEHICLES. PAX WERE CALM DURING THIS. WE AND PLTS KEPT THEM INFORMED.

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.