<< >> NASA ASRS Report 820017, January 2009

Lavatory fire alarm strong chemical odors near an aft lavatory resulted in an emergency declaration and return to departure airport.

Attributes
ACN	820017
Time
Date	200901
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Pilot Flying
Experience	Flight Crew Last 90 Days 250 Flight Crew Total 10000 Flight Crew Type 1500
Person 2
Function	Flight Attendant (On Duty)
Qualification	Flight Attendant Current
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Other / Unknown Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

While passing through about 13;000 ft; the flight attendant called to report the fire alarm was going off in the aft lavatory. She reported that there was also a strong chemical odor near the lavatory; but they were unable to locate the source of the fumes. After a short discussion; the captain decided to return to ZZZ. We notified center; declared an emergency; and received clearance back to ZZZ which was accomplished uneventfully. After landing; maintenance checked out the aircraft; no further fumes were noted.

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Original NASA ASRS Text

Title: Lavatory fire alarm strong chemical odors near an aft lavatory resulted in an emergency declaration and return to departure airport.

Narrative: While passing through about 13;000 FT; the Flight Attendant called to report the fire alarm was going off in the aft lavatory. She reported that there was also a strong chemical odor near the lavatory; but they were unable to locate the source of the fumes. After a short discussion; the Captain decided to return to ZZZ. We notified Center; declared an emergency; and received clearance back to ZZZ which was accomplished uneventfully. After landing; Maintenance checked out the aircraft; no further fumes were noted.

Data retrieved from NASA's ASRS site as of April 2012 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.