A MANCHESTER Airport boss is being investigated after three of her staff accused her of bullying.

Christina Kelly, who runs the airport's fleet of passenger and staff buses, is facing an inquiry into her conduct after an allegation of 'bullying, harassment and intimidation' was made against her.

The complaint was lodged by three male members of her six-strong team - who help to manage transport services at the airport's three terminals.

Ms Kelly is thought to earn in the region of £50,000.

It is understood that the investigation will centre around claims that the men were subjected to a year-long campaign of 'victimisation' with staff claiming to have been repeatedly 'shouted at' and 'humiliated' in front of their colleagues.

Coaching manager Ms Kelly, 34, who has worked at the airport for around four years after moving from GM Buses, is also accused of threatening to force the men to have to reapply for their jobs if they did not accept new shift patterns.

The new rotas are thought to involve shorter shifts - but could include more evening and weekend work.

The workers - who are employed as allocation managers - directly report to Ms Kelly and have expressed serious concerns over her professional conduct over a 12-month period.

One of the group has also complained that she has allegedly used her managerial status to influence the outcome of grievances before disciplinary and appeal hearings have finished.

It is understood that it is not the first time that questions have been raised about Ms Kelly's conduct - with an external mediator previously being called in to work with her following concerns from members of her team regarding her 'managerial conduct'.

The allegations are being probed by an external investigator and the inquiry is expected to be concluded in the next fortnight.

The M.E.N. understands that Ms Kelly, who has not been suspended, has moved out of her usual office at Hale Top House, Terminal Two, to allow inquiries to take place.

She is currently carrying out her role from Olympic House, the main office block at the airport, pending the conclusion of the investigation but it is understood that she is not allowed direct contact with any of the parties involved.

If the allegations are proven, Ms Kelly could be dismissed from her role. Some of the complainants are members of the trade union UNISON and are being represented by the organisation.

A spokesman for UNISON said: "I can confirm that a complaint has been lodged against a senior member of staff and airport management are dealing with it accordingly."

An airport spokesman added: "We can confirm that an investigation is currently under way - that being the case, we cannot comment further on the process."

Ms Kelly declined to comment.