A320 passenger found a bomb threat note in a magazine in-flight.

Attributes
ACN	528858
Time
Date	200111
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 39000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	A320
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 crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 12000 flight time type : 400
ASRS Report	528858
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	cabin event : passenger misconduct other anomaly other
Independent Detector	other other : 4
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency other
Consequence	other
Supplementary
Problem Areas	Passenger Human Performance
Primary Problem	Passenger Human Performance

Narrative:

On an air carrier flight at cruise altitude of FL390, flight attendant came to cockpit with a note found by a passenger in a magazine. The note said 'flight will explode.' an emergency was declared and a rapid descent made to land at ZZZ. 250 KIAS exceeded below 10000 ft MSL in rapid descent due to nature of situation. Approach and landing to runway were normal. Aircraft was stopped in a secure area, and passenger deplaned.

Original NASA ASRS Text

Title: A320 PAX FOUND A BOMB THREAT NOTE IN A MAGAZINE INFLT.

Narrative: ON AN ACR FLT AT CRUISE ALT OF FL390, FLT ATTENDANT CAME TO COCKPIT WITH A NOTE FOUND BY A PAX IN A MAGAZINE. THE NOTE SAID 'FLT WILL EXPLODE.' AN EMER WAS DECLARED AND A RAPID DSCNT MADE TO LAND AT ZZZ. 250 KIAS EXCEEDED BELOW 10000 FT MSL IN RAPID DSCNT DUE TO NATURE OF SIT. APCH AND LNDG TO RWY WERE NORMAL. ACFT WAS STOPPED IN A SECURE AREA, AND PAX DEPLANED.

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.