<< >> NASA ASRS Report 579817, April 2003

PA28 pilot in cmi traffic pattern incurs communication failure, executes a touch-and-go, go around until transmitting capability is regained. Controller gives light gun signal clearance which is not observed by the pilot.

Attributes
ACN	579817
Time
Date	200304
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cmi.airport
State Reference	IL
Altitude	msl single value : 1504
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cmi.tower
Operator	general aviation : instructional
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : student
ASRS Report	579817
Person 2
Affiliation	government : faa
Function	controller : local
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : radio com other controllera other flight crewa
Resolutory Action	aircraft : equipment problem dissipated controller : issued new clearance flight crew : executed go around other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

I was doing touch-and-goes at cmi when my GPS, radios and communication #1 became inoperative. Communication #2 had partial failure in-flight receive capabilities only. Various corrective activities were taken with no effect. I did 1 touch-and-go without being cleared. The tower gave a light gun signal, which I did not see, so I went around. At this point, I regained transmitting capability, called tower, and was cleared to land. I did not land immediately because I did not see the light gun signals.

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Original NASA ASRS Text

Title: PA28 PLT IN CMI TFC PATTERN INCURS COM FAILURE, EXECUTES A TOUCH-AND-GO, GAR UNTIL XMITTING CAPABILITY IS REGAINED. CTLR GIVES LIGHT GUN SIGNAL CLRNC WHICH IS NOT OBSERVED BY THE PLT.

Narrative: I WAS DOING TOUCH-AND-GOES AT CMI WHEN MY GPS, RADIOS AND COM #1 BECAME INOP. COM #2 HAD PARTIAL FAILURE INFLT RECEIVE CAPABILITIES ONLY. VARIOUS CORRECTIVE ACTIVITIES WERE TAKEN WITH NO EFFECT. I DID 1 TOUCH-AND-GO WITHOUT BEING CLRED. THE TWR GAVE A LIGHT GUN SIGNAL, WHICH I DID NOT SEE, SO I WENT AROUND. AT THIS POINT, I REGAINED XMITTING CAPABILITY, CALLED TWR, AND WAS CLRED TO LAND. I DID NOT LAND IMMEDIATELY BECAUSE I DID NOT SEE THE LIGHT GUN SIGNALS.

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.