Inquiry urges changes to way naval copters secured

An inquiry into damage caused to a Seasprite helicopter on board the HMNZS Te Mana has recommended that more attention be paid to how the helicopters are lashed down.

The inquiry was launched after severe airframe vibration caused damage to the undercarriage and accessories of the Seasprite on May 22 in the Gulf of Oman. The pilot shut down the helicopter after the vibration occurred, and it was later replaced.

The Navy said the inquiry found the vibration developed as a result of a condition known as ground resonance during rotor engagement. This was in turn caused by incorrectly lashing the aircraft to the deck.

Among the court's recommendations were an improvement to publications to better highlight correct lashing procedures and the dangers of ground resonance. Training syllabuses have also been reviewed.

Air Commodore Richard Newlands, air component commander, said the recommendations were being taken on board.

"This event highlights the role of all those involved in flight operations to both ensure correct procedures are carried out at all times, and to ensure those procedures are well understood," he said.

"The recommendations of the court are currently being implemented within the Navy and Air Force."

- NZPA