An improperly stowed hand microphone results in a stuck mike on a busy airport.

Attributes
ACN	838979
Time
Date	200906
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	Microphone
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 120 Flight Crew Total 15000 Flight Crew Type 1200
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

On landing roll; we got a stuck mike. Could not initially determine a cause. When first officer went to flight interphone; the problem was semi-resolved. Upon block in; we determined that the first officer hand mike was on the floor; and when we decelerated; his flight bag slid forward slightly and activated his hand mike; causing the hot mike on tower frequency. I would like to recommend that the hand mike be properly stored in a location other than on the floor (preferably in its receptacle) when not being used.

Original NASA ASRS Text

Title: An improperly stowed hand microphone results in a stuck mike on a busy airport.

Narrative: On landing roll; we got a stuck mike. Could not initially determine a cause. When First Officer went to flight interphone; the problem was semi-resolved. Upon block in; we determined that the First Officer hand mike was on the floor; and when we decelerated; his flight bag slid forward slightly and activated his hand mike; causing the hot mike on Tower frequency. I would like to recommend that the hand mike be properly stored in a location other than on the floor (preferably in its receptacle) when not being used.

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.