B757 captain expressed concern regarding frequency usage at sfo during soia lda prm approach procedu...

Attributes
ACN	657962
Time
Date	200505
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sfo.airport
State Reference	CA
Altitude	msl single value : 3000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : nct.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 270 flight time total : 17000 flight time type : 4800
ASRS Report	657962
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	other anomaly other inflight encounter : skydivers
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	FAA
Primary Problem	FAA
Situations
ATC Facility	procedure or policy : nct.tracon

Narrative:

While executing the lda prm approach to runway 28R in sfo and while monitoring 127.67 during the approach; there were several xmissions to other aircraft not related to the approach on 127.67 while our controller was talking to us on 128.05. Contacted the tower supervisor upon landing and he explained that the tower is always transmitting on 4 frequencys at the same time; including 127.67. It is impossible to listen to your assigned frequency while they are transmitting to you and to monitor all these other communications not related to your approach going on; on 127.67. The 127.67 frequency should be used exclusively for traffic alerts and directions; not for formal traffic.

Original NASA ASRS Text

Title: B757 CAPT EXPRESSED CONCERN REGARDING FREQ USAGE AT SFO DURING SOIA LDA PRM APCH PROCS.

Narrative: WHILE EXECUTING THE LDA PRM APCH TO RWY 28R IN SFO AND WHILE MONITORING 127.67 DURING THE APCH; THERE WERE SEVERAL XMISSIONS TO OTHER ACFT NOT RELATED TO THE APCH ON 127.67 WHILE OUR CTLR WAS TALKING TO US ON 128.05. CONTACTED THE TWR SUPVR UPON LNDG AND HE EXPLAINED THAT THE TWR IS ALWAYS XMITTING ON 4 FREQS AT THE SAME TIME; INCLUDING 127.67. IT IS IMPOSSIBLE TO LISTEN TO YOUR ASSIGNED FREQ WHILE THEY ARE XMITTING TO YOU AND TO MONITOR ALL THESE OTHER COMS NOT RELATED TO YOUR APCH GOING ON; ON 127.67. THE 127.67 FREQ SHOULD BE USED EXCLUSIVELY FOR TFC ALERTS AND DIRECTIONS; NOT FOR FORMAL TFC.

Data retrieved from NASA's ASRS site as of January 2009 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.

B757 captain expressed concern regarding frequency usage at sfo during soia lda prm approach procedures.