There are eight injury classifications:
Fatal injury. This is an injury resulting in death
from a mishap or from complications arising
from the mishap. The length of time between the
mishap and a later death has no effect on the
assignment of a fatal injury classification.
Permanent total disability. These are nonfatal
injuries that, in the opinion of competent
medical authority, permanently and totally
incapacitate a person so that he or she cannot
follow any gainful occupation. Additionally, the
loss of, or the loss of use of, both hands, or both
feet, or both eyes, or a combination of any of
these body parts as a result of a single mishap
will be considered as a permanent total
Permanent partial disability. Injuries that do not
result in death or permanent total disability, but,
in the opinion of competent medical authority,
do result in permanent impairment or loss of any
part of the body, loss of the great toe or the
thumb, or an unrepairable inguinal hernia, with
the following exceptions:
The four smaller toes
Distal phalanx of any finger
Distal two phalanges of the little finger
Hair, skin, nails, or any subcutaneous tissue
Lost workday. An injury that does not result in
death, permanent total disability, or permanent
partial disability, but results in 5 or more lost
workdays (not including the day of the injury).
Lost workday level injuries are further divided
into major and minor categories.
a. Major InjuryA nonfatal injury that does
not result in permanent total disability or
permanent partial disability, but results in 5
or more lost workdays and requires
admission to a hospital or quarters, or a
combination of both, for 5 or more days. It
also includes any of the following regardless
of hospital status:
(1) Unconsciousness for more than 5
minutes because of head trauma.
Fracture of any bone, except simple
fracture of the nose or phalanges.
Traumatic dislocation of major joints or
internal derangement of the knee.
Moderate to severe laceration resulting
in severe hemorrhage or requiring
extensive surgical repair.
Injury to any internal organ.
Any third degree bums, or any first or
second degree burns (including sun-
burn) over 5 percent of the body surface.
b. Minor InjuryAn injury less than major
that results in 1 to 4 lost workdays.
First-aid injury. This injury involves bodily
harm requiring only first aid or no treatment.
Lost at sea.
Missing or unknown.
Note that both lost at sea and missing/unknown
injuries are considered as fatalities in assigning mishap
severity level classification.
Simply put, pre-mishap plans are descriptions of
who is responsible for doing what, both before and after
an aircraft mishap. A command must expect, take
measures for, and formulate plans for all reasonable
eventualities. The command conducts periodic drills to
identify any deficiencies and to evaluate coordinated
execution of the plan.
You can expect pre-mishap plans to vary widely,
depending on the mission, resources, environment, and
personnel of the individual command. If possible, you
should write pre-mishap plans that will remain valid
during deployments. Include an abbreviated pre-mishap
plan in a letter of instruction (LOI) or in executing
instructions for detachment. You may require other
changes when the command relocates. For more
information on both pre-mishap plans and post-mishap
plans, consult appendix 2B of OPNAVINST 3750.6Q.
We use mishap reports (MRs) to provide interested
commands with information about significant naval
aircraft mishaps. The MR includes preliminary
information on the mishap and information on the