<< >> NASA ASRS Report 170567, February 1991

GA pilot on test flight with new radios experiences stuck microphone. Incident contributes to another GA small aircraft landing on taxiway. Tower unable to intervene.

Attributes
ACN	170567
Time
Date	199102
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bkl
State Reference	OH
Altitude	msl bound lower : 1400 msl bound upper : 1400
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : bkl
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : takeoff landing other other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 10 flight time total : 1600 flight time type : 700
ASRS Report	170567
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Test flight for brand new navigation-communication (and new LORAN) ended flight with touch and go at bkl. Radio jammed in the transmit position, blocking all radio traffic from time of adding power for takeoff phase of touch and go. On downwind, I noticed transmitter problem. Transmitted intentions blind. Tried to turn radio off and get a landing clearance by light gun. Got clearance, landed. Told to call tower. Tower told me that, while my radio jammed radio frequency 124.3, an small aircraft Y landed on parallel taxiway, due to blinding sunset. Tower upset at my jamming the frequency, and worst and all, heard me signing on downwind. When alone, having fun, I sometimes sing (poorly). I don't know status of maintenance log books following new radio installation. Morale of incident: good thing it was VFR. Never fly actual IFR with new radios.

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Original NASA ASRS Text

Title: GA PLT ON TEST FLT WITH NEW RADIOS EXPERIENCES STUCK MICROPHONE. INCIDENT CONTRIBUTES TO ANOTHER GA SMA LNDG ON TXWY. TWR UNABLE TO INTERVENE.

Narrative: TEST FLT FOR BRAND NEW NAV-COM (AND NEW LORAN) ENDED FLT WITH TOUCH AND GO AT BKL. RADIO JAMMED IN THE XMIT POS, BLOCKING ALL RADIO TFC FROM TIME OF ADDING PWR FOR TKOF PHASE OF TOUCH AND GO. ON DOWNWIND, I NOTICED XMITTER PROB. XMITTED INTENTIONS BLIND. TRIED TO TURN RADIO OFF AND GET A LNDG CLRNC BY LIGHT GUN. GOT CLRNC, LANDED. TOLD TO CALL TWR. TWR TOLD ME THAT, WHILE MY RADIO JAMMED RADIO FREQ 124.3, AN SMA Y LANDED ON PARALLEL TXWY, DUE TO BLINDING SUNSET. TWR UPSET AT MY JAMMING THE FREQ, AND WORST AND ALL, HEARD ME SIGNING ON DOWNWIND. WHEN ALONE, HAVING FUN, I SOMETIMES SING (POORLY). I DON'T KNOW STATUS OF MAINT LOG BOOKS FOLLOWING NEW RADIO INSTALLATION. MORALE OF INCIDENT: GOOD THING IT WAS VFR. NEVER FLY ACTUAL IFR WITH NEW RADIOS.

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.