A PA28R pilot reported the top cowling became unsecured on approach. Landing was continued normally.

Attributes
ACN	979460
Time
Date	201111
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Vectors
Flight Plan	VFR
Component
Aircraft Component	Cowling/Nacelle Fasteners Latches
Person 1
Function	Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial
Experience	Air Traffic Control Radar 12 Flight Crew Last 90 Days 10 Flight Crew Total 630 Flight Crew Type 350
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

The top cowling became unsecured on the co-pilot's side. The cowling was secured on the pilot's side and stayed on the aircraft. I slowed the aircraft and continued the approach and landing. I shut down the engine upon landing as a precaution since the top cowling was loose and was towed to the FBO.

Original NASA ASRS Text

Title: A PA28R pilot reported the top cowling became unsecured on approach. Landing was continued normally.

Narrative: The top cowling became unsecured on the co-pilot's side. The cowling was secured on the pilot's side and stayed on the aircraft. I slowed the aircraft and continued the approach and landing. I shut down the engine upon landing as a precaution since the top cowling was loose and was towed to the FBO.

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.