<< >> NASA ASRS Report 141215, March 1990

Corporate aircraft captain showing the ropes to a new copilot experiences finger trouble and tunes tower frequency without clearance.

Attributes
ACN	141215
Time
Date	199003
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : den
State Reference	CO
Altitude	msl bound lower : 8000 msl bound upper : 8000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den tower : den
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 12000 flight time type : 3000
ASRS Report	141215
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

First flight with this inexperienced copilot, thus I was flying and handling radios during IMC approach, with radar vectors to ILS 8R at den. I inadvertently changed radio frequency to tower in expectation of frequency change, but through force of habit I also changed transmitter switch, thus taking me off approach control frequency. I realized my error as I flew thru the localizer just as den tower called me on his frequency and told me to go back to approach frequency. Approach controller then gave me an immediate vector back around for the ILS. I was distracted by the WX (icing was moderate rime), handling the full workload and showing new copilot our approach procedures.

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Original NASA ASRS Text

Title: CORPORATE ACFT CAPT SHOWING THE ROPES TO A NEW COPLT EXPERIENCES FINGER TROUBLE AND TUNES TWR FREQ WITHOUT CLRNC.

Narrative: FIRST FLT WITH THIS INEXPERIENCED COPLT, THUS I WAS FLYING AND HANDLING RADIOS DURING IMC APCH, WITH RADAR VECTORS TO ILS 8R AT DEN. I INADVERTENTLY CHANGED RADIO FREQ TO TWR IN EXPECTATION OF FREQ CHANGE, BUT THROUGH FORCE OF HABIT I ALSO CHANGED XMITTER SWITCH, THUS TAKING ME OFF APCH CTL FREQ. I REALIZED MY ERROR AS I FLEW THRU THE LOC JUST AS DEN TWR CALLED ME ON HIS FREQ AND TOLD ME TO GO BACK TO APCH FREQ. APCH CTLR THEN GAVE ME AN IMMEDIATE VECTOR BACK AROUND FOR THE ILS. I WAS DISTRACTED BY THE WX (ICING WAS MODERATE RIME), HANDLING THE FULL WORKLOAD AND SHOWING NEW COPLT OUR APCH PROCS.

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.