NASA · Aviation Safety Reporting System
Corporate jet Captain reported executing a go-around from approach to SMO after experiencing GPS anomalies. Reporter stated he was notified that other aircraft experienced similar anomalies in that area.
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 narrative
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.
During the RNAV GPS Runway 21 approach into Santa Monica, after passing the final approach fix and descending through approximately 1800 feet, experienced a loss of the glide path associated with a GPS LOI (loss of integrity) warning. Immediately executed the published missed approach. Regained full GPS functionality during the climb and successfully executed the same approach to a landing at SMO. No further GPS anomalies in later flights. Subsequently heard from my company that other pilots had experienced GPS failure in same location.
NASA classification — Anomalies
- Aircraft Equipment Problem
NASA classification — Assessments
- Contributing Factors / Situations
- Aircraft · Environment - Non Weather Related
- Primary Problem
- Environment - Non Weather Related
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 ↗.