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Large transport aircraft established on ILS approach, flight crew received traffic alert from approach controller and then a TCASII RA to climb. Flight crew acquired the intruder aircraft and initiated evasive turn to the left and climb. Approach controller told flight crew to turn right because there was traffic landing on the left runway. Reporter captain refused because of direction of intruder track, but then landed uneventfully. Post flight follow-up revealed that the intruder piper aircraft was remaining outside the class B parameters.
| Attributes | |
| ACN | 366694 |
| Time | |
| Date | 199704 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : iad |
| State Reference | DC |
| Altitude | msl bound lower : 2100 msl bound upper : 2100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : iad tower : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Piper Single Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer pilot : cfi |
| Experience | flight time last 90 days : 180 flight time total : 12000 |
| ASRS Report | 366694 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 10500 flight time type : 2500 |
| ASRS Report | 366697 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : far other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
First officer acting as PF. Approach control called traffic at same altitude 10 O'clock and 1 mi. We acquired visual contact with traffic as TCASII sounded a descend RA. Traffic was a single engine piper crossing from left to right. Almost immediately, TCASII sounded a crossing climb RA. We initiated a left turn and a slight climb. I told the controller our intentions. The controller replied with a right turn (conflicting traffic on runway 1L final). I refused right turn as traffic was now at 12 O'clock and still moving left to right. Evasive action of one-half DOT west of localizer and plus 100 ft (2200 ft MSL) avoided other aircraft. Remainder of approach normal. I contacted a supervisor upon arrival. He informed me the aircraft was not in voice contact with approach control. Aircraft was tracked to manassas, va. I have requested a full investigation into this near collision.
Original NASA ASRS Text
Title: LGT ACFT ESTABLISHED ON ILS APCH, FLC RECEIVED TFC ALERT FROM APCH CTLR AND THEN A TCASII RA TO CLB. FLC ACQUIRED THE INTRUDER ACFT AND INITIATED EVASIVE TURN TO THE L AND CLB. APCH CTLR TOLD FLC TO TURN R BECAUSE THERE WAS TFC LNDG ON THE L RWY. RPTR CAPT REFUSED BECAUSE OF DIRECTION OF INTRUDER TRACK, BUT THEN LANDED UNEVENTFULLY. POST FLT FOLLOW-UP REVEALED THAT THE INTRUDER PIPER ACFT WAS REMAINING OUTSIDE THE CLASS B PARAMETERS.
Narrative: FO ACTING AS PF. APCH CTL CALLED TFC AT SAME ALT 10 O'CLOCK AND 1 MI. WE ACQUIRED VISUAL CONTACT WITH TFC AS TCASII SOUNDED A DSND RA. TFC WAS A SINGLE ENG PIPER XING FROM L TO R. ALMOST IMMEDIATELY, TCASII SOUNDED A XING CLB RA. WE INITIATED A L TURN AND A SLIGHT CLB. I TOLD THE CTLR OUR INTENTIONS. THE CTLR REPLIED WITH A R TURN (CONFLICTING TFC ON RWY 1L FINAL). I REFUSED R TURN AS TFC WAS NOW AT 12 O'CLOCK AND STILL MOVING L TO R. EVASIVE ACTION OF ONE-HALF DOT W OF LOC AND PLUS 100 FT (2200 FT MSL) AVOIDED OTHER ACFT. REMAINDER OF APCH NORMAL. I CONTACTED A SUPVR UPON ARR. HE INFORMED ME THE ACFT WAS NOT IN VOICE CONTACT WITH APCH CTL. ACFT WAS TRACKED TO MANASSAS, VA. I HAVE REQUESTED A FULL INVESTIGATION INTO THIS NEAR COLLISION.
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.