Hong Kong warns 787 operators on ILS incidents

[Ref Flight International Magazine 5 – 11 May 2020]

After the latest in a string of incidents involving Boeing 787, authorities in Hong Kong have warned operators of possible adverse autopilot behaviour during localiser capture at the city’s international airport.

A newly issued NOTAM instructs carriers to check a Boeing flightcrew operations bulletin referring to “anomalies” in localiser capture and possible misbehaviour by the autopilot flight-director ­system, particularly during instrument landing system (ILS) approaches to runways 25R and 25L.

The issue can lead to “proximity to high ground”, adding that – if in doubt – crews should climb back to minimum sector altitude and conduct a missed approach.

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