<< >> NASA ASRS Report 406657, June 1998

Controller at ogg tower claims approach control is automatically handing off traffic to the tower but not making radio xfer.

Attributes
ACN	406657
Time
Date	199806
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ogg
State Reference	HI
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zhn tower : ogg
Operator	common carrier : air carrier
Make Model Name	L-1011 Tri-Star All Series
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach
Route In Use	arrival other enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller radar : 12 flight time total : 400
ASRS Report	406657
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	other anomaly other
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

An LOA exists between approach control at hnl cerap and maui ATCT which permits 'walk on handoffs' or automatic xfer of radio identify from approach to tower. Air carrier #1, a heavy L1011, inbound from the northeast to maui, was radar xferred through the walk-on procedure to maui ATCT. The aircraft continued on the downwind. Unknown to local control, other aircraft inbound from the south were sequenced ahead of air carrier #1. These aircraft were military #1, a C130, and air carrier #2, a DC9. Other local control duties took my attention away from the radar scope. Upon looking back at the scope, air carrier #1 had disappeared from the radar scope. After checking with approach I was informed they had radio communications with the aircraft that was on my control symbol (O). The aircraft's position was outside the current coverage of the radar scope at maui ATCT.

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Original NASA ASRS Text

Title: CTLR AT OGG TWR CLAIMS APCH CTL IS AUTOMATICALLY HANDING OFF TFC TO THE TWR BUT NOT MAKING RADIO XFER.

Narrative: AN LOA EXISTS BTWN APCH CTL AT HNL CERAP AND MAUI ATCT WHICH PERMITS 'WALK ON HDOFS' OR AUTOMATIC XFER OF RADIO IDENT FROM APCH TO TWR. ACR #1, A HVY L1011, INBOUND FROM THE NE TO MAUI, WAS RADAR XFERRED THROUGH THE WALK-ON PROC TO MAUI ATCT. THE ACFT CONTINUED ON THE DOWNWIND. UNKNOWN TO LCL CTL, OTHER ACFT INBOUND FROM THE S WERE SEQUENCED AHEAD OF ACR #1. THESE ACFT WERE MIL #1, A C130, AND ACR #2, A DC9. OTHER LCL CTL DUTIES TOOK MY ATTN AWAY FROM THE RADAR SCOPE. UPON LOOKING BACK AT THE SCOPE, ACR #1 HAD DISAPPEARED FROM THE RADAR SCOPE. AFTER CHKING WITH APCH I WAS INFORMED THEY HAD RADIO COMS WITH THE ACFT THAT WAS ON MY CTL SYMBOL (O). THE ACFT'S POS WAS OUTSIDE THE CURRENT COVERAGE OF THE RADAR SCOPE AT MAUI ATCT.

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.