<< >> NASA ASRS Report 239474, April 1993

Controller complains about a new LOA between the approach control facility and tower pertaining to silent handoffs.

Attributes
ACN	239474
Time
Date	199304
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bjc
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den tower : bjc
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	239474
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : published procedure other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Procedure problem. 'Silent coordination.' IFR flight plan. Inbound small transport observed on BRITE radar descending out of 6700 ft landing at jeffco on a 3-MI final to runway 29R. (Only runway open at the time, 2 other runways NOTAM closed.) jeffco tower controller advised den approach to switch the small transport via voice-page line. Small transport came to tower frequency on a 2-MI final 1ST call. This is an ongoing problem caused in part by: denver radar forcing the new procedures, i.e., 'silent coordination' on all satellite facilities to reduce their workload at satellite facility burden, as well as at the cost of aviation safety. Denver radar is not reducing workload on 'satellite' radar controllers by splitting off into 2 separate position in time.

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Original NASA ASRS Text

Title: CTLR COMPLAINS ABOUT A NEW LOA BTWN THE APCH CTL FACILITY AND TWR PERTAINING TO SILENT HDOFS.

Narrative: PROC PROB. 'SILENT COORD.' IFR FLT PLAN. INBOUND SMT OBSERVED ON BRITE RADAR DSNDING OUT OF 6700 FT LNDG AT JEFFCO ON A 3-MI FINAL TO RWY 29R. (ONLY RWY OPEN AT THE TIME, 2 OTHER RWYS NOTAM CLOSED.) JEFFCO TWR CTLR ADVISED DEN APCH TO SWITCH THE SMT VIA VOICE-PAGE LINE. SMT CAME TO TWR FREQ ON A 2-MI FINAL 1ST CALL. THIS IS AN ONGOING PROB CAUSED IN PART BY: DENVER RADAR FORCING THE NEW PROCS, I.E., 'SILENT COORD' ON ALL SATELLITE FACILITIES TO REDUCE THEIR WORKLOAD AT SATELLITE FACILITY BURDEN, AS WELL AS AT THE COST OF AVIATION SAFETY. DENVER RADAR IS NOT REDUCING WORKLOAD ON 'SATELLITE' RADAR CTLRS BY SPLITTING OFF INTO 2 SEPARATE POS IN TIME.

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.