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Potential conflict with arrival traffic is experienced by air carrier medium large transport, thus setting off his TCASII RA and creating flight crew distraction audible interference.
| Attributes | |
| ACN | 174436 |
| Time | |
| Date | 199103 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lgb |
| State Reference | CA |
| Altitude | msl bound lower : 450 msl bound upper : 650 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : lgb |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft |
| Flight Phase | descent : approach landing other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument pilot : flight engineer |
| Experience | flight time last 90 days : 150 flight time total : 8100 flight time type : 1000 |
| ASRS Report | 174436 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Miss Distance | horizontal : 5000 vertical : 450 |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
On ILS approach to lgb, captain at controls, first officer reported light aircraft traffic about 11 O'clock. TCAS screen diamond with altitude readout plus 500'. He was under tower control to land runway 25. TCAS issued an RA, 'monitor vertical speed,' with red arc mandating restricting aircraft to approximately 700 FPM descent. At 4500' MSL TCAS announced traffic clear. Trying to listen to tower frequency on approach, alternating CAWS announcements for stabilizer trim plus TCAS sounded like a circus. At same time we were observing an air carrier medium large transport on takeoff roll to assure landing clearance. Too much noise at critical stage of flight.
Original NASA ASRS Text
Title: POTENTIAL CONFLICT WITH ARR TRAFFIC IS EXPERIENCED BY ACR MLG, THUS SETTING OFF HIS TCASII RA AND CREATING FLT CREW DISTR AUDIBLE INTERFERENCE.
Narrative: ON ILS APCH TO LGB, CAPT AT CTLS, F/O RPTED LIGHT ACFT TFC ABOUT 11 O'CLOCK. TCAS SCREEN DIAMOND WITH ALT READOUT PLUS 500'. HE WAS UNDER TWR CTL TO LAND RWY 25. TCAS ISSUED AN RA, 'MONITOR VERT SPD,' WITH RED ARC MANDATING RESTRICTING ACFT TO APPROX 700 FPM DSNT. AT 4500' MSL TCAS ANNOUNCED TFC CLR. TRYING TO LISTEN TO TWR FREQ ON APCH, ALTERNATING CAWS ANNOUNCEMENTS FOR STAB TRIM PLUS TCAS SOUNDED LIKE A CIRCUS. AT SAME TIME WE WERE OBSERVING AN ACR MLG ON TKOF ROLL TO ASSURE LNDG CLRNC. TOO MUCH NOISE AT CRITICAL STAGE OF FLT.
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.