After an 'a' check, engine cowling comes loose in-flight and is bent.

Attributes
ACN	224690
Time
Date	199210
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 5000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude climbout : takeoff ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 3100 flight time type : 280
ASRS Report	224690
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

After a preflight, I, the first officer, found that the aircraft was ok, while the captain checked the aircraft logs. The captain found the aircraft was out of time and needed an 'a' check. We deplaned the passenger and cancelled the flight so the 'a' check could be accomplished. We did a walkaround and everything seemed normal. We departed from lax-san to cruise at 9000 ft. We took off to the west on runway 25R and on the climb through 5000 ft we heard a thump, we checked all flight and engine instruments and all appeared normal. After landing in san, about a 30 min flight and taxi to the gate, a ground person brought to our attention that the top right outboard engine cowl became loose in-flight and was bent.

Original NASA ASRS Text

Title: AFTER AN 'A' CHK, ENG COWLING COMES LOOSE INFLT AND IS BENT.

Narrative: AFTER A PREFLT, I, THE FO, FOUND THAT THE ACFT WAS OK, WHILE THE CAPT CHKED THE ACFT LOGS. THE CAPT FOUND THE ACFT WAS OUT OF TIME AND NEEDED AN 'A' CHK. WE DEPLANED THE PAX AND CANCELLED THE FLT SO THE 'A' CHK COULD BE ACCOMPLISHED. WE DID A WALKAROUND AND EVERYTHING SEEMED NORMAL. WE DEPARTED FROM LAX-SAN TO CRUISE AT 9000 FT. WE TOOK OFF TO THE W ON RWY 25R AND ON THE CLB THROUGH 5000 FT WE HEARD A THUMP, WE CHKED ALL FLT AND ENG INSTS AND ALL APPEARED NORMAL. AFTER LNDG IN SAN, ABOUT A 30 MIN FLT AND TAXI TO THE GATE, A GND PERSON BROUGHT TO OUR ATTN THAT THE TOP R OUTBOARD ENG COWL BECAME LOOSE INFLT AND WAS BENT.

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.