MIL-DTL-85383A(AS)
(3) Major damage.
(4) Temporary repair.
(5) One-time-flight repair.
d. A statement that use of temporary repair instructions shall be restricted to extraordinary or
unusual circumstances such as crash damage or battle damage sustained in an environment
not suitable for, or an area not easily accessible to, required personnel or equipment.
3.2.3 Damage classification. Damage to aircraft structure and to structural components shall
be classified in one of the following categories
a. Negligible damage: Damage or distortion which can be permitted to exist as is.
b. Repairable damage: Damage which can be permanently corrected by reworking the
damaged structure or components with no adverse effects upon structural integrity, flight
characteristics, or safety of the aircraft. This includes minor replacement of parts and
correction by a simple procedure such as removing dents, stop-drilling cracks, or temporary
patching without placing restrictions on flight.
c. Major damage: Damage which requires replacement of structural components and major
assemblies or engineering evaluation to determine the feasibility of repair.
3.2.4 Damage evaluation. Criteria (acceptance/rejection) for evaluating damage shall be
defined. Limits shall be established and stated for assigning the appropriate damage classification
defined in 3.2.3. Instructions and information, including illustrations, shall be prepared to the
extent necessary to perform the following as required:
a. External inspection for skin deformation.
b. Detailed visual inspection for damage areas.
c. Inspection for fire damage by use of portable testers or as evidenced by discoloration.
d. Inspection for corrosion from residues of aircraft fire-fighting chemical materials.
e. Alignment checks.
f. Hard landing and over-G inspections.
g. Pressure tests for leaks and for strength.
h. Inspection for damage from severe engine stalls.
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