Light transport has passenger window crack during descent.

Attributes
ACN	287454
Time
Date	199410
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : lrp airport : mdt
State Reference	PA
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	tracon : mdt
Operator	common carrier : air carrier
Make Model Name	Jetstream 31
Operating Under FAR Part	Part 135
Flight Phase	descent : approach descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : atp
Experience	flight time last 90 days : 266 flight time total : 5800 flight time type : 800
ASRS Report	287454
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted other
Consequence	other Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Passing through approximately 6000 ft on a vector for the visual approach to runway 13 at mdt, the crew heard a 'thump' which sounded like someone dropping a heavy object in the aisle. All instruments readings and flight control responses appeared normal. Since we were so close to final, we continued with the visual approach and landed without incident. On a postflt inspection, we found that the exterior pane on the right side of the fuselage was cracked, seat 3C. Contract maintenance was called out for repair.

Original NASA ASRS Text

Title: LTT HAS PAX WINDOW CRACK DURING DSCNT.

Narrative: PASSING THROUGH APPROX 6000 FT ON A VECTOR FOR THE VISUAL APCH TO RWY 13 AT MDT, THE CREW HEARD A 'THUMP' WHICH SOUNDED LIKE SOMEONE DROPPING A HVY OBJECT IN THE AISLE. ALL INSTS READINGS AND FLT CTL RESPONSES APPEARED NORMAL. SINCE WE WERE SO CLOSE TO FINAL, WE CONTINUED WITH THE VISUAL APCH AND LANDED WITHOUT INCIDENT. ON A POSTFLT INSPECTION, WE FOUND THAT THE EXTERIOR PANE ON THE R SIDE OF THE FUSELAGE WAS CRACKED, SEAT 3C. CONTRACT MAINT WAS CALLED OUT FOR REPAIR.

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.