A Sikorsky S92 helicopter is understood to have been halted from leaving a North Sea oil rig due to a “loose bolt”.
The fault was flagged last week during an inspection of the aircraft while it was on the Taqa-operated North Cormorant platform, 110 miles north-east of Lerwick.
A source told Energy Voice that the aircraft was prevented from taking off after an issue with the “exhaust cowl” was detected during a routine visual inspection.
Closer inspection showed that a retaining bolt was loose.
A spokesman for Bristow said: “During pre-departure checks on an offshore installation, an issue was identified with an S92 aircraft.
“Engineering support was provided and once certified for flight, the aircraft returned to its operating base.”
A spokeswoman for Taqa said: “We can confirm that during routine checks an issue was identified with an S92 aircraft due to depart from the North Cormorant platform.
“The issue was resolved on the platform and the aircraft returned to base the following day.”
Unite regional organiser Tommy Campbell called for a full investigation involving the appropriate authorities, including the Civil Aviation Authority.
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