The cowling latches came open on an engine of an air carrier light transport.

Attributes
ACN	225178
Time
Date	199210
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	msl bound lower : 9000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sna tower : bna
Operator	common carrier : air carrier
Make Model Name	Light Transport
Navigation In Use	Other Other
Flight Phase	climbout : initial
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 270 flight time total : 10000 flight time type : 7000
ASRS Report	225178
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure non adherence other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We received aircraft in lax which required an 'a' check. Preflight was conducted before a check and a walkaround was done. After the a check, after takeoff in a climbing left turn, engine #2 outboard cowling latches came undone. Normal flight/landing in san diego. No emergency was declared. Cause at that time, problem was unknown. I think the problem occurred while performing 'a' check by the mechanic. Cowling latches weren't securely fastened.

Original NASA ASRS Text

Title: THE COWLING LATCHES CAME OPEN ON AN ENG OF AN ACR LTT.

Narrative: WE RECEIVED ACFT IN LAX WHICH REQUIRED AN 'A' CHK. PREFLT WAS CONDUCTED BEFORE A CHK AND A WALKAROUND WAS DONE. AFTER THE A CHK, AFTER TKOF IN A CLBING L TURN, ENG #2 OUTBOARD COWLING LATCHES CAME UNDONE. NORMAL FLT/LNDG IN SAN DIEGO. NO EMER WAS DECLARED. CAUSE AT THAT TIME, PROBLEM WAS UNKNOWN. I THINK THE PROBLEM OCCURRED WHILE PERFORMING 'A' CHK BY THE MECH. COWLING LATCHES WEREN'T SECURELY FASTENED.

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.