 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
On an ILS to lax, an large transport responded to a 'climb' TCASII command generated by a helicopter at or near hhr.
| Attributes | |
| ACN | 217432 |
| Time | |
| Date | 199208 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | msl bound lower : 500 msl bound upper : 700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : lax tower : iad |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent : approach landing other |
| Route In Use | approach : straight in arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Helicopter |
| Flight Phase | cruise other cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 65 flight time total : 7800 flight time type : 4000 |
| ASRS Report | 217432 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 6000 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
On ILS 25L approach to lax. Received 2 TCASII TA's at approximately 500 ft in the full landing confign. This was followed shortly thereafter by a verbal and visual off scale 'climb' command from TCASII. As the throttles were being brought up, I caught sight of a hovering helicopter at my 9 O'clock and 1/2 mi. Approach was recovered and a normal landing executed. On roll-out, tower was questioned about traffic. Their response was it was south of airport and no factor. After parking aircraft, I called tower to talk to the supervisor, who stated the helicopter was not in the TCA but probably over hawthorne airport and that they weren't talking to him anyway. Helicopter was over a freeway intersection, not an airport from my point of view and if he's close enough to set off an RA, then the TCA should be enlarged to provide a safe approach all the way to touchdown.
Original NASA ASRS Text
Title: ON AN ILS TO LAX, AN LGT RESPONDED TO A 'CLB' TCASII COMMAND GENERATED BY A HELI AT OR NEAR HHR.
Narrative: ON ILS 25L APCH TO LAX. RECEIVED 2 TCASII TA'S AT APPROX 500 FT IN THE FULL LNDG CONFIGN. THIS WAS FOLLOWED SHORTLY THEREAFTER BY A VERBAL AND VISUAL OFF SCALE 'CLB' COMMAND FROM TCASII. AS THE THROTTLES WERE BEING BROUGHT UP, I CAUGHT SIGHT OF A HOVERING HELI AT MY 9 O'CLOCK AND 1/2 MI. APCH WAS RECOVERED AND A NORMAL LNDG EXECUTED. ON ROLL-OUT, TWR WAS QUESTIONED ABOUT TFC. THEIR RESPONSE WAS IT WAS S OF ARPT AND NO FACTOR. AFTER PARKING ACFT, I CALLED TWR TO TALK TO THE SUPVR, WHO STATED THE HELI WAS NOT IN THE TCA BUT PROBABLY OVER HAWTHORNE ARPT AND THAT THEY WEREN'T TALKING TO HIM ANYWAY. HELI WAS OVER A FREEWAY INTXN, NOT AN ARPT FROM MY POINT OF VIEW AND IF HE'S CLOSE ENOUGH TO SET OFF AN RA, THEN THE TCA SHOULD BE ENLARGED TO PROVIDE A SAFE APCH ALL THE WAY TO TOUCHDOWN.
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.