CL65 crew had #2 engine cowling fall off the aircraft during reversing.

Attributes
ACN	612098
Time
Date	200403
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sgf.airport
State Reference	MO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
ASRS Report	612098
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure non adherence : company policies
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	performance deficiency : inspection performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

After landing, it was discovered that a piece of engine cowling was missing from the #2 engine. I immediately called the sgf tower to have them inspect the landing runway. The cowling was found on the landing runway. It appeared that when the thrust reversers were deployed, the reverse air flow may have caused the cowling to blow off of the aircraft. I suspect that the cowling may have been improperly installed by maintenance.

Original NASA ASRS Text

Title: CL65 CREW HAD #2 ENG COWLING FALL OFF THE ACFT DURING REVERSING.

Narrative: AFTER LNDG, IT WAS DISCOVERED THAT A PIECE OF ENG COWLING WAS MISSING FROM THE #2 ENG. I IMMEDIATELY CALLED THE SGF TWR TO HAVE THEM INSPECT THE LNDG RWY. THE COWLING WAS FOUND ON THE LNDG RWY. IT APPEARED THAT WHEN THE THRUST REVERSERS WERE DEPLOYED, THE REVERSE AIR FLOW MAY HAVE CAUSED THE COWLING TO BLOW OFF OF THE ACFT. I SUSPECT THAT THE COWLING MAY HAVE BEEN IMPROPERLY INSTALLED BY MAINT.

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.