Tul controller described an unsafe event during side visual approaches to parallel runways when traf...

Attributes
ACN	1055496
Time
Date	201212
Local Time Of Day	0001-0600
Place
Locale Reference	TUL.Airport
State Reference	OK
Aircraft 1
Make Model Name	Citation III VI VII (C650)
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Beech 1900
Operating Under FAR Part	Part 135
Flight Phase	Final Approach
Route In Use	Visual Approach
Person 1
Function	Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Track / Heading All Types

Narrative:

A C650 was cleared for a visual approach to runway 18R and instructed to intercept final on a 150 heading due to traffic going to the parallel. A BE1900 was cleared visual approach to 18L and instructed to intercept final on a 210 heading due to traffic going to the parallel. The C650 flew through his own final and directly in front of the BE1900. The C650 did not follow instructions and caused an unsafe situation to occur with another aircraft. The FAA implemented the 30 degree intercept rule for aircraft on a visual approach to parallel runways to prevent aircraft from overshooting their final and possibly hitting another aircraft. The problem is that the pilots that I talked with had no idea what to do when given the instruction. They had not been briefed on the new approach clearance phraseology and were therefore caught by surprise. My advise is to brief the pilots to such a change.

Original NASA ASRS Text

Title: TUL Controller described an unsafe event during side visual approaches to parallel runways when traffic failed to follow the thirty degree intercept instruction; causing a conflict.

Narrative: A C650 was cleared for a visual approach to Runway 18R and instructed to intercept final on a 150 heading due to traffic going to the parallel. A BE1900 was cleared visual approach to 18L and instructed to intercept final on a 210 heading due to traffic going to the parallel. The C650 flew through his own final and directly in front of the BE1900. The C650 did not follow instructions and caused an unsafe situation to occur with another aircraft. The FAA implemented the 30 degree intercept rule for aircraft on a visual approach to parallel runways to prevent aircraft from overshooting their final and possibly hitting another aircraft. The problem is that the pilots that I talked with had no idea what to do when given the instruction. They had not been briefed on the new approach clearance phraseology and were therefore caught by surprise. My advise is to brief the pilots to such a change.

Data retrieved from NASA's ASRS site as of July 2013 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.

Tul controller described an unsafe event during side visual approaches to parallel runways when traffic failed to follow the thirty degree intercept instruction; causing a conflict.