NASA · Aviation Safety Reporting System
Corporate jet flight crew reported a NMAC during approach to BUR airport with an aircraft that passed below them by approximately 300 feet. They received a TCAS RA to descend but decided not to follow that instruction and rather disengaged the autopilot and began a climb.
What is ASRS?
The Aviation Safety Reporting System is NASA's voluntary, confidential, non- punitive incident-reporting system, established 1976. Pilots, controllers, dispatchers, and maintenance technicians file reports describing safety- relevant events. NASA de-identifies every report before adding it to the public database. Reports are not investigated by NASA, the FAA, or the NTSB — they represent the reporter's perspective.
Pilot narratives
Verbatim from the de-identified NASA record. First-person account by the
reporter. NASA strips identifying details (names, company, specific time);
anonymization placeholders are ZZZ,
X, Y.
Reporter 1
On transition from the arrival to the approach I noticed an aircraft coming towards us from a roughly 11 o’clock direction, the aircraft continued toward us roughly 300 ft. below us. He passed directly below us with no notice from ATC. We received an RA that directed us to descend. We elected to not follow the advisory because it would have caused us to get closer to the aircraft. PF disengaged autopilot maintained altitude then began a climb. We did not elect to go-around because we were visual and there was other traffic in the vicinity and did not want to add to the threat level.
Reporter 2
We had a TCAS RA while on an approach to Runway 8. I did not comply however as it was giving us an incorrect resolution. My First Officer had the aircraft in sight, and it was also displayed on the TCAS system. If we had complied with the resolution we would have descended towards the conflict aircraft. We never even received any kind of advisory from ATC in regards to the conflicting traffic. After landing I reported the incorrect TCAS resolution issue to maintenance, and wrote up the aircraft.
NASA classification — Anomalies
- Aircraft Equipment Problem
- Conflict
NASA classification — Assessments
- Contributing Factors / Situations
- Human Factors · Software and Automation · Procedure
- Primary Problem
- Ambiguous
ASRS reports are voluntarily submitted, de-identified by NASA, and represent the reporter's perspective. The presence of reports on a topic cannot be used to infer prevalence in the National Airspace System. The authoritative source is the NASA ASRS Database Online at asrs.arc.nasa.gov ↗.