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Your aircraft's navigation reliability is poor. What can you do to improve it?

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Navigation reliability is a crucial factor for safe and efficient flight operations. However, sometimes your aircraft's navigation equipment may not perform as expected, resulting in inaccurate or unreliable information. This can compromise your situational awareness, flight planning, and decision making. In this article, we will explore some common causes of poor navigation reliability and some practical tips to improve it.

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Kubilay Uzun

Aviator

1 Human factors

One of the most common and preventable causes of poor navigation reliability is human error. This can include incorrect data entry, misinterpretation of information, lack of cross-checking, or failure to follow procedures. To avoid these mistakes, you should always use standard phraseology, verify your inputs and outputs, use multiple sources of information, and follow the checklists and manuals. You should also be aware of your own limitations, such as fatigue, stress, or distraction, and seek help or feedback when needed.

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Emilio Eduardo OTERO ANTON

Piloto de Helicópteros - Abogado Bachiller por La Pontificia Universidad Católica del Perú- Miembro Plenario de ALADA y Miembro del CADA-Bróker de Seguros Certificado ante la SBS
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El Factor Humano, fue, es y será el mas importante en toda la industria aeronáutica. No olvides que todo gira entorno al hombre, desde la invención del vuelo, los cambios y revoluciones de las aeronaves, los sistemas de navegación y hasta los ACCIDENTES. Es decir, todo esta ligado al hombre, por lo tanto, si no se posee un buen equipo humano, capaz de responder y sobreponerse a todas las circunstancias jamás despegara la empresa.

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2 Equipment factors

Another cause of poor navigation reliability is equipment malfunction or failure. This can affect your primary or backup navigation systems, such as GPS, VOR, DME, INS, or FMS. To prevent or minimize the impact of equipment issues, you should always conduct a pre-flight inspection, test your systems before takeoff, monitor their performance during flight, and report any anomalies or defects. You should also be familiar with the limitations, specifications, and modes of operation of your equipment, and know how to troubleshoot or switch to alternative sources if necessary.

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Emilio Eduardo OTERO ANTON

Piloto de Helicópteros - Abogado Bachiller por La Pontificia Universidad Católica del Perú- Miembro Plenario de ALADA y Miembro del CADA-Bróker de Seguros Certificado ante la SBS
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Para evitar llegar a extremos en cuanto es las fallas de los sistemas de respaldo en navegación, como los gps, sistema dme, vor, ndb, etc es estar atento a sus características, tiempos de vida, calendario o recurso técnico y demás , que asegure un eficiente y eficaz empleo en apoyo a la actividad aérea. Para ello, contar con un área y sobre todo un excelente administrador de la línea de soporte de tecnologías asociadas a la aviación.

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3 Environmental factors

A third cause of poor navigation reliability is environmental interference or disruption. This can affect your navigation signals, such as radio waves, satellite signals, or magnetic fields. To cope with environmental challenges, you should always check the weather forecast, NOTAMs, and ATIS before and during your flight, and be prepared for changes or deviations. You should also be aware of the effects of terrain, obstacles, or magnetic anomalies on your navigation accuracy, and use appropriate corrections or adjustments.

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Kubilay Uzun

Aviator
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One of the most common causes for a poor navigation system performance is unhealthy GNSS update. What is the common reason for the GNSS update failure? The reason is basically “jamming”. Electronic jamming usually does not intentionally target airliner navigation systems. The aim of the jamming signals are protection from EIDs (improvised explosive device). Since cellular network carrier signals frequencies are close to GNSS coarse acquisition signal, jamming targeting cellular network may affect GNSS. Loss of GNSS update does not necessarily mean the FMS position is in error. The navigation system switches to the next best available update source which is DME-DME update.

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Emilio Eduardo OTERO ANTON

Piloto de Helicópteros - Abogado Bachiller por La Pontificia Universidad Católica del Perú- Miembro Plenario de ALADA y Miembro del CADA-Bróker de Seguros Certificado ante la SBS
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El vuelo desde sus albores estuvo asociado a los efectos adversos, entre ellos el más clásico; los efectos del cielo, los vientos y la visibilidad. No hay que extra?ar que son agentes con los que toda la industria y en especial los aviadores enfrentarán constantemente, por que el cielo es la esencia del vuelo.

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4 Regulatory factors

A fourth cause of poor navigation reliability is regulatory compliance or non-compliance. This can affect your navigation requirements, such as equipment, procedures, or airspace. To ensure regulatory compliance, you should always review the relevant rules and regulations for your flight, such as ICAO, FAA, EASA, or local authorities. You should also be familiar with the navigation standards and specifications for different types of operations, such as IFR, VFR, RNAV, RNP, or PBN.

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Emilio Eduardo OTERO ANTON

Piloto de Helicópteros - Abogado Bachiller por La Pontificia Universidad Católica del Perú- Miembro Plenario de ALADA y Miembro del CADA-Bróker de Seguros Certificado ante la SBS
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Este campo, mas corresponde a la tarea intrínseca del aviador. Es decir, estar al día y pendiente de su "negocio" ello se da con la constancia y disciplinada forma de su trabajo, el cual inicia desde el pre-vuelo, hasta su aterrizaje.

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5 Training factors

A fifth cause of poor navigation reliability is training deficiency or inconsistency. This can affect your navigation skills, knowledge, or proficiency. To improve your training, you should always seek to update your information, refresh your skills, and practice your scenarios. You should also take advantage of the available resources, such as courses, books, podcasts, or mentors. You should also evaluate your performance, identify your strengths and weaknesses, and set your goals and plans.

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Emilio Eduardo OTERO ANTON

Piloto de Helicópteros - Abogado Bachiller por La Pontificia Universidad Católica del Perú- Miembro Plenario de ALADA y Miembro del CADA-Bróker de Seguros Certificado ante la SBS
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Ello, es desde dos agentes, el empleador y el empleado propiamente dicho. Hay que invertir en instrucción, ello asegura la respuesta en "casos DE".Por lo general en la actualidad las empresas someten a sus empleados a cabina, simulador de vuelo, etc. Lo cual, asegura o disminuye el riesgo de no saber que hacer en casos de incidentes, que podrían terminar en accidentes.

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6 Safety factors

A sixth cause of poor navigation reliability is safety compromise or risk. This can affect your navigation outcomes, such as efficiency, economy, or security. To enhance your safety, you should always apply the principles of risk management, such as identify, assess, mitigate, and monitor. You should also use the tools of safety management, such as SMS, CRM, or ASAP. You should also follow the best practices of safety culture, such as reporting, learning, or sharing.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Your aircraft's navigation reliability is poor. What can you do to improve it?

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2

3

4

5

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1 Human factors

2 Equipment factors

3 Environmental factors

4 Regulatory factors

5 Training factors

6 Safety factors

7 Here’s what else to consider

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