DATE: 122-1108
LOCATION: Jewell/Jewell/SMs
VESSEL: INR Pirkhukhi
PROXIMATE CAUSE(S): Denergized maneuver drives
ROOT CAUSE(S): Inattention by maintenance personnel and supervisors, failure to follow training
SUMMARY: Partial temporary loss of maneuver drive combined with overcorrection by the pilot resulted in severe damage to the 1900 dton fleet screening vessel along with fatalities and injuries.
DESCRIPTION: In preparation for deployment the Pirkhukhi had been pursuing an aggressive maintenance schedule for 36 hours previous. Two technicians were tasked with securing and isolating power to the port jump vanes. Simultaneously the ship was engaged in a lift and hover ten meters over the dock to perform maneuver drive balancing. During this hover the two technicians misread the power distribution panel lables and mistakenly denergized the port maneuver drive nacelle. The pilot, seeing his ship fall to port, overcorrected heavily to starboard in an attempt to keep it from dropping sideways onto the dock. The two technicians, realizing their error, with no awareness of the ship's status and without authorization reenergized the port maneuver drive nacelle. In response to pilot input the ship then rolled violently to starboard, inverting and driving its port nacelle into the dock cracking the hull/nacelle armor interface. Subsequent electrical derangement caused the failure of much of the ship's internal gravity system, dropping the affected crew into the overhead. At this point the pilot managed to regain control of the ship and immediately settled it upside down onto the dock terminating the incident.
LOCATION: Jewell/Jewell/SMs
VESSEL: INR Pirkhukhi
PROXIMATE CAUSE(S): Denergized maneuver drives
ROOT CAUSE(S): Inattention by maintenance personnel and supervisors, failure to follow training
SUMMARY: Partial temporary loss of maneuver drive combined with overcorrection by the pilot resulted in severe damage to the 1900 dton fleet screening vessel along with fatalities and injuries.
DESCRIPTION: In preparation for deployment the Pirkhukhi had been pursuing an aggressive maintenance schedule for 36 hours previous. Two technicians were tasked with securing and isolating power to the port jump vanes. Simultaneously the ship was engaged in a lift and hover ten meters over the dock to perform maneuver drive balancing. During this hover the two technicians misread the power distribution panel lables and mistakenly denergized the port maneuver drive nacelle. The pilot, seeing his ship fall to port, overcorrected heavily to starboard in an attempt to keep it from dropping sideways onto the dock. The two technicians, realizing their error, with no awareness of the ship's status and without authorization reenergized the port maneuver drive nacelle. In response to pilot input the ship then rolled violently to starboard, inverting and driving its port nacelle into the dock cracking the hull/nacelle armor interface. Subsequent electrical derangement caused the failure of much of the ship's internal gravity system, dropping the affected crew into the overhead. At this point the pilot managed to regain control of the ship and immediately settled it upside down onto the dock terminating the incident.