<< >> NASA ASRS Report 107407, March 1989

Due to distraction in aircraft reporter mistuned radio frequency and failed to contact correct approach control facility.

Attributes
ACN	107407
Time
Date	198903
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : cay airport : day
State Reference	OH
Altitude	msl bound lower : 8000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : ind tracon : day
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other cruise other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 120 flight time total : 7500 flight time type : 400
ASRS Report	107407
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After switching to day approach frequency of 134.45 I was distracted by a passenger question in the rear of the airplane. I did not notice a lack of other aircraft on this frequency, or consider it unusual since it was a clear evening. After about 25 or 35 mi I realized that I was in ind in approach control airspace and had not received a frequency change. It was at this time that I noticed that my communication radio was tuned to a frequency of 133.45. Rather than contact day approach on 134.45 I called ind approach and advised that I had lost communications with day approach. Ind approach acknowledged my transmission, confirmed assigned altitude and advised type of approach to expect at my destination. I believe that a momentary distraction led to a mischanneling of the radio, delayed the initial call on the frequency and therefore the unintentional loss of communications with day approach control.

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Original NASA ASRS Text

Title: DUE TO DISTR IN ACFT REPORTER MISTUNED RADIO FREQ AND FAILED TO CONTACT CORRECT APCH CTL FAC.

Narrative: AFTER SWITCHING TO DAY APCH FREQ OF 134.45 I WAS DISTRACTED BY A PAX QUESTION IN THE REAR OF THE AIRPLANE. I DID NOT NOTICE A LACK OF OTHER ACFT ON THIS FREQ, OR CONSIDER IT UNUSUAL SINCE IT WAS A CLEAR EVENING. AFTER ABOUT 25 OR 35 MI I REALIZED THAT I WAS IN IND IN APCH CTL AIRSPACE AND HAD NOT RECEIVED A FREQ CHANGE. IT WAS AT THIS TIME THAT I NOTICED THAT MY COM RADIO WAS TUNED TO A FREQ OF 133.45. RATHER THAN CONTACT DAY APCH ON 134.45 I CALLED IND APCH AND ADVISED THAT I HAD LOST COMS WITH DAY APCH. IND APCH ACKNOWLEDGED MY XMISSION, CONFIRMED ASSIGNED ALT AND ADVISED TYPE OF APCH TO EXPECT AT MY DEST. I BELIEVE THAT A MOMENTARY DISTR LED TO A MISCHANNELING OF THE RADIO, DELAYED THE INITIAL CALL ON THE FREQ AND THEREFORE THE UNINTENTIONAL LOSS OF COMS WITH DAY APCH CTL.

Data retrieved from NASA's ASRS site as of August 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.