B777 flight crew reported diverting after receiving reports from the flight attendants of a strong e...

Attributes
ACN	1390322
Time
Date	201609
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 49 Flight Crew Total 12000
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 14701
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

Shortly after leveling off at cruise altitude; the flight attendant in the rear of the aircraft called and spoke to the captain. She stated that they smelled a strong electrical burning smell coming from under the floor at row 46; left side of the aircraft. She also said that she and two other flight attendants had heard a loud 'shuddering' and noise coming from under the airplane shortly after pushback and shortly before takeoff. The captain asked me to handle the radios as he went on the satellite phone to get a patch to maintenance control. Shortly thereafter; the flight attendants called again to say the smell was stronger; and that the passengers in 46 rows def got out of their seats because of the smell. As the situation seemed to be worsening; the captain and I made the decision to [divert].

Original NASA ASRS Text

Title: B777 flight crew reported diverting after receiving reports from the flight attendants of a strong electrical burning smell in the cabin.

Narrative: Shortly after leveling off at cruise altitude; the flight attendant in the rear of the aircraft called and spoke to the Captain. She stated that they smelled a strong electrical burning smell coming from under the floor at row 46; left side of the aircraft. She also said that she and two other flight attendants had heard a loud 'shuddering' and noise coming from under the airplane shortly after pushback and shortly before takeoff. The Captain asked me to handle the radios as he went on the Satellite Phone to get a patch to maintenance control. Shortly thereafter; the flight attendants called again to say the smell was stronger; and that the passengers in 46 Rows DEF got out of their seats because of the smell. As the situation seemed to be worsening; the captain and I made the decision to [divert].

Data retrieved from NASA's ASRS site 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.