Maintenance Manual DG-808C
Issued: May 2012
TN800/41
2.6
2.4
Inspection procedure for increase of service time
1.
General
The results of fatigue tests of wingspar sections have demonstrated that the
service time of GFRP/CFRP gliders and motorgliders may be limited to
12000 hours, if for each individual glider (in addition to the obligatory
annual inspections) the airworthiness is demonstrated according to a
special multi-step inspection program particularly with regard to the
service life.
2.
Dates
When the glider has reached a service time of 3000 hours, an inspection
must be done in accordance with the inspection program mentioned under
point 3. If the results of this inspection are positive or if any defects found
have been duly repaired, the service time of the glider is extended by
another 3000 hours to a total of 6000 hours (first step).
The above inspection program must be repeated when the glider has
reached a service time of 6000 hours. If the results of this inspection are
positive or if any defects found have been duly repaired, the service time of
the glider is extended to 9000 hours (second step).
When the glider has reached a service time of 9000 h the above inspection
program must be repeated. If the results of the inspection are still positive,
or if any defects found have been duly repaired, the service time may be
extended to a total of 10000 hours (third step).
Proceed analogous when reaching 10000 and 11000 hours (4. + 5. step).
3. Ask the DG Flugzeugbau for the necessary inspection document.
When you request the inspection document, the following data should be
submitted: Model/Type, Registration, Serial Number and the operating
hours at which the inspection will be performed. A charge will be made
for the inspection document.
4. The inspection must only be done by a licensed repair station or inspector.
5. The results of the inspections have to be recorded in an inspection test
report wherein comments are required for each inspection instruction. If the
inspections are done outside the DG Flugzeugbau facilities, a copy of the
records must be sent to DG Flugzeugbau for evaluation and information.
Summary of Contents for DG-800A
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