Airworthiness Limitations; Repairs; Life Time Of The Airframe; Life Time Of Components - DG Flugzeugbau DG-1000T Maintenance Manual

0.4 Airworthiness limitations

0.4.1

Repairs

Repair or replace damaged parts prior to next flight. Follow the instructions of
the DG-1000 repair manual for repairs of the airframe. Repairs outside the scope
of DG-1000 repair manual and major repairs must be accomplished at a certified
repair station or by a certified mechanic rated for composite aircraft structure
work in accordance with DG repair methods.
Use only genuine spare parts.
For all aircraft under EASA regulations the following applies: According to part
21, subpart M to accomplish major repairs an approved repair instruction is
required, see also TN DG-G-01 "Approved repair methods according to EU
Commission Regulation 1702/2003 part 21, subpart M"
0.4.2

Life time of the airframe

The maximum allowable operating time for German composite sailplanes and
motor gliders was proofed for 12000 flight hours. The initial life time for the
DG-1000T is 3000 flight hours and may be increased by inspections according
to section 2.4 of this manual to 6000 h, 9000 h, 10000 h, 11000 h and 12000 h.
0.4.3

Life time of components

Use only genuine spare parts. For part. No.'s of all parts please refer to section
8.
a) The gasket for the drainer valve has to be exchanged after 6 years, part no.
60504402.
b) The spark plugs have to be exchanged after 25 engine hours, part
no.40050360.
c) The fabric straps of the safety harness have to be exchanged according to
the instructions of the respective manufacturer. If no limitations are given,
exchange after 12 years, approved types see section 6.
d) The rubber cord in the elevator control system see section 1.2.6 has to be
replaced at least every 6 years, part no. 30091131.
e) The adapter ring with elastic damping element 10M067 for the propeller
(introduced with TN1000/26) has to be exchanged after 50 engine hours or 5
years, whichever comes first.
f) The eccentric axle of the reduction gear (propeller axle) Solo part no.
2031211-V2 has to be replaced after 50 engine hours
Note: The brake fluid of the wheel brake has to be exchanged after 4 years
(types see section 1.6.2).
Note:All other components like propeller, tow hook, wheels, gas struts, control
system parts, bolts, pins etc. have no life time limitation, but should be replaced
when worn, damaged or disqualified by excessive corrosion.
Issued: July 2017 TN1000/32
Maintenance Manual DG-1000T
0.11