<< >> NASA ASRS Report 133806, January 1990

Reporter complaint that approach controller constantly gave changing RVR to them on approach, creating a distraction.

Attributes
ACN	133806
Time
Date	199001
Day	Thu
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : lax
State Reference	CA
Altitude	msl bound lower : 150 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : lax artcc : zkc
Operator	common carrier : air taxi
Make Model Name	Heavy Transport, Low Wing, 4 Turbojet Eng
Flight Phase	descent : approach descent other landing other
Route In Use	arrival : profile descent
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time last 90 days : 25 flight time total : 8000
ASRS Report	133806
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Aircraft was on the profile descent into lax and was subsequently cleared for an is 25L approach. From the time the initial ATIS information was received until T/D, at least 5 different special observations were transmitted by the tower re: the RVR on runway 25L. We commenced our approach based on WX information transmitted just prior to intercepting the ILS G/south and resulted in an uneventful landing and rollout. In this case, the tower was transmitting so much information in a brief span of time that it resulted in some confusion in the cockpit re: minimums and status of checklists. I felt that the tower was attempting to cover themselves to a point where their xmissions were a detriment instead of an asset.

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Original NASA ASRS Text

Title: REPORTER COMPLAINT THAT APCH CTLR CONSTANTLY GAVE CHANGING RVR TO THEM ON APCH, CREATING A DISTR.

Narrative: ACFT WAS ON THE PROFILE DSCNT INTO LAX AND WAS SUBSEQUENTLY CLRED FOR AN IS 25L APCH. FROM THE TIME THE INITIAL ATIS INFO WAS RECEIVED UNTIL T/D, AT LEAST 5 DIFFERENT SPECIAL OBSERVATIONS WERE XMITTED BY THE TWR RE: THE RVR ON RWY 25L. WE COMMENCED OUR APCH BASED ON WX INFO XMITTED JUST PRIOR TO INTERCEPTING THE ILS G/S AND RESULTED IN AN UNEVENTFUL LNDG AND ROLLOUT. IN THIS CASE, THE TWR WAS XMITTING SO MUCH INFO IN A BRIEF SPAN OF TIME THAT IT RESULTED IN SOME CONFUSION IN THE COCKPIT RE: MINIMUMS AND STATUS OF CHKLISTS. I FELT THAT THE TWR WAS ATTEMPTING TO COVER THEMSELVES TO A POINT WHERE THEIR XMISSIONS WERE A DETRIMENT INSTEAD OF AN ASSET.

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.