An air carrier flight crew while in cruise smelled the faint smell of cigarette smoke. The 'a' fligh...

Narrative:

While in cruise; I smelled the faint smell of cigarette smoke. As I told the captain that I started to smell cigarette smoke; we received a call from flight attendant a. As pilot flying; I did not talk to the flight attendant however; I was told by the captain that a passenger had lit a cigarette in the forward lavatory; but the cigarette had been extinguished.we informed ATC that we may need to divert; and asked to slow down in case we needed to go to [a nearby airport] while we determined options/QRH procedures. The captain obtained information from the flight attendants and ACARS dispatch which resulted in a radio call to dispatch to identify options. We did not see smoke; and the smell in the cockpit quickly dissipated. After running and following QRH procedures and speaking with dispatch; we [advised] center; and diverted to [a nearby airport]. Law enforcement and fire department were waiting for us when we landed. Law enforcement escorted/removed the passenger from the aircraft. At no time did we receive an EICAS message for lavatory smoke.

Original NASA ASRS Text

Title: An air carrier flight crew while in cruise smelled the faint smell of cigarette smoke. The 'A' Flight Attendant confirmed that a passenger had lit a cigarette in the forward lavatory. They followed QRH procedures and elected to divert. Law enforcement removed the passenger from the aircraft.

Narrative: While in cruise; I smelled the faint smell of cigarette smoke. As I told the Captain that I started to smell cigarette smoke; we received a call from Flight Attendant A. As pilot flying; I did not talk to the Flight Attendant however; I was told by the Captain that a passenger had lit a cigarette in the forward lavatory; but the cigarette had been extinguished.We informed ATC that we may need to divert; and asked to slow down in case we needed to go to [a nearby airport] while we determined options/QRH procedures. The Captain obtained information from the flight attendants and ACARS Dispatch which resulted in a radio call to Dispatch to identify options. We did not see smoke; and the smell in the cockpit quickly dissipated. After running and following QRH procedures and speaking with Dispatch; we [advised] center; and diverted to [a nearby airport]. Law Enforcement and Fire department were waiting for us when we landed. Law Enforcement escorted/removed the passenger from the aircraft. At no time did we receive an EICAS message for Lavatory Smoke.

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.

Attributes
ACN	1267588
Time
Date	201506
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Passenger Misconduct Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

An air carrier flight crew while in cruise smelled the faint smell of cigarette smoke. The 'a' flight attendant confirmed that a passenger had lit a cigarette in the forward lavatory. They followed QRH procedures and elected to divert. Law enforcement removed the passenger from the aircraft.