<< >> NASA ASRS Report 222726, October 1992

Section of cowling comes off from failure of hinges. Aircraft makes precautionary landing in diversion to alternate airport.

Attributes
ACN	222726
Time
Date	199210
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : see
State Reference	CA
Altitude	msl bound lower : 3500 msl bound upper : 3500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : see tower : cvg
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	cruise other cruise other other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 225 flight time total : 1000 flight time type : 160
ASRS Report	222726
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

During a local multieng training flight the right cowling section on the right engine became unattached while at cruise. Both hinges were broken but the cowling remained attached by the latches. I instructed the student to slow the aircraft and start a gradual descent to the airfield below us. When turning base to land using a shallow bank angle the cowling fell completely off and toward the ground. A normal landing followed a go around due to a high first approach. The hinges clearly failed possibly due to ill-fitting cowlings after recent repairs had been done. No reports of where the cowling landed at this time.

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Original NASA ASRS Text

Title: SECTION OF COWLING COMES OFF FROM FAILURE OF HINGES. ACFT MAKES PRECAUTIONARY LNDG IN DIVERSION TO ALTERNATE ARPT.

Narrative: DURING A LCL MULTIENG TRAINING FLT THE R COWLING SECTION ON THE R ENG BECAME UNATTACHED WHILE AT CRUISE. BOTH HINGES WERE BROKEN BUT THE COWLING REMAINED ATTACHED BY THE LATCHES. I INSTRUCTED THE STUDENT TO SLOW THE ACFT AND START A GRADUAL DSCNT TO THE AIRFIELD BELOW US. WHEN TURNING BASE TO LAND USING A SHALLOW BANK ANGLE THE COWLING FELL COMPLETELY OFF AND TOWARD THE GND. A NORMAL LNDG FOLLOWED A GAR DUE TO A HIGH FIRST APCH. THE HINGES CLRLY FAILED POSSIBLY DUE TO ILL-FITTING COWLINGS AFTER RECENT REPAIRS HAD BEEN DONE. NO RPTS OF WHERE THE COWLING LANDED AT THIS TIME.

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.