2 passenger injured when aircraft encounters unexpected turbulence.

Attributes
ACN	259759
Time
Date	199312
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : fll
State Reference	FL
Altitude	msl bound lower : 30000 msl bound upper : 30000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zma
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : zma
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 190 flight time total : 18700
ASRS Report	259759
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	inflight encounter : weather
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation other

Narrative:

On descent to fll, encountered heavy turbulence entering cirrustratus clouds passing FL310. Seat belt sign was on but not all passenger were seated. 2 passenger received bumps on their heads. Turbulence lasted about 5 seconds. Radar did not show any returns in the area. No turbulence reports from other aircraft except light chop. Timely reports of turbulence in the area by atl would have influenced my decision to have passenger and crew seated earlier, if there were any rough air reports.

Original NASA ASRS Text

Title: 2 PAX INJURED WHEN ACFT ENCOUNTERS UNEXPECTED TURB.

Narrative: ON DSCNT TO FLL, ENCOUNTERED HVY TURB ENTERING CIRRUSTRATUS CLOUDS PASSING FL310. SEAT BELT SIGN WAS ON BUT NOT ALL PAX WERE SEATED. 2 PAX RECEIVED BUMPS ON THEIR HEADS. TURB LASTED ABOUT 5 SECONDS. RADAR DID NOT SHOW ANY RETURNS IN THE AREA. NO TURB RPTS FROM OTHER ACFT EXCEPT LIGHT CHOP. TIMELY RPTS OF TURB IN THE AREA BY ATL WOULD HAVE INFLUENCED MY DECISION TO HAVE PAX AND CREW SEATED EARLIER, IF THERE WERE ANY ROUGH AIR RPTS.

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.