Introduction
On 14 February 2009, at 1240 UTC, a Robinson R22 Beta (registration G-TTHC) was involved in an event near Sandtoft Aerodrome, Humberside. The AAIB conducted a field investigation and published Bulletin No 10/2009.
Correction Details
Subsequently, the AAIB issued an addendum (Bulletin 12/2009) to correct an error in the Aircraft Information – General section of the original bulletin. The last sentence of the first paragraph in that section had incorrectly stated that the gauge needle should be kept in the yellow arc. The corrected text specifies that the gauge needle should be kept out of the yellow arc.
Aircraft Information
The aircraft in question is a Robinson R22 Beta, a light helicopter. The gauge referred to is likely an engine or rotor RPM gauge, though the exact gauge is not specified in the addendum. The correction ensures accurate operational guidance for pilots.
Conclusion
The AAIB bulletin addendum for G-TTHC clarifies the correct interpretation of the gauge indication. This correction is part of the ongoing effort to maintain accuracy in published safety information.