Heavy jet pilot complains about localizer deflection from previous arrival while on short final.

Attributes
ACN	209669
Time
Date	199205
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : jfk
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 150
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : jfk
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	ground other : taxi landing other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Heavy Transport, Low Wing, 4 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach landing other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller radar : 3
ASRS Report	209669
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : unable
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

Air carrier X, a widebody transport, was cleared to land 4R and roll to the end at his discretion. Air carrier Y, a heavy jet, was at 6 mi in-trail on the approach. Air carrier X cleared as air carrier Y was on a 2-2 1/2 mi final. After landing, air carrier Y questioned the separation used on final. I informed him that standard radar separation (4 mi) at a min existed. The pilot complained that the widebody transport X clearing caused such localizer needle aberrations that the autoplt disconnected. In a subsequent phone conversation, the captain of air carrier Y claimed that this occurred at 150 ft, at which time the previous arrival was quite some distance from the runway. The airport facility directory contains a statement that localizer needle aberrations occurs in vicinity of 4R/22L. I think this information should be included on the approach plates.

Original NASA ASRS Text

Title: HVY JET PLT COMPLAINS ABOUT LOC DEFLECTION FROM PREVIOUS ARR WHILE ON SHORT FINAL.

Narrative: ACR X, A WDB, WAS CLRED TO LAND 4R AND ROLL TO THE END AT HIS DISCRETION. ACR Y, A HVY JET, WAS AT 6 MI IN-TRAIL ON THE APCH. ACR X CLRED AS ACR Y WAS ON A 2-2 1/2 MI FINAL. AFTER LNDG, ACR Y QUESTIONED THE SEPARATION USED ON FINAL. I INFORMED HIM THAT STANDARD RADAR SEPARATION (4 MI) AT A MIN EXISTED. THE PLT COMPLAINED THAT THE WDB X CLRING CAUSED SUCH LOC NEEDLE ABERRATIONS THAT THE AUTOPLT DISCONNECTED. IN A SUBSEQUENT PHONE CONVERSATION, THE CAPT OF ACR Y CLAIMED THAT THIS OCCURRED AT 150 FT, AT WHICH TIME THE PREVIOUS ARR WAS QUITE SOME DISTANCE FROM THE RWY. THE ARPT FAC DIRECTORY CONTAINS A STATEMENT THAT LOC NEEDLE ABERRATIONS OCCURS IN VICINITY OF 4R/22L. I THINK THIS INFO SHOULD BE INCLUDED ON THE APCH PLATES.

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.