EN-1320
OPERATION AND INSTALLATION MANUAL
1.0. AIRWORTHINESS LIMITATIONS
This Airworthiness Limitations Section is EASA approved in accordance with Part 21A.31(a)(3)
and CS-P40(b) and 14 CFR Part 35.4 (A35.4). Any change to mandatory replacement times,
inspection intervals and related procedures contained in this section must also be approved.
The Airworthiness Limitations Section is FAA approved and specifies maintenance required
under §§ 43.16 and 91.403 of the Federal Aviation Regulations unless an alternate program
has been FAA approved.
1.1. Service Life Limits
1) The life limit should be established for certain part of the propeller assembly. This limit
requires the replacement of such part after a specified number of hours of operation (TSN,
Time Since New).
2) This section summarizes the life limited parts of propellers in this manual.
3) The blade life limit is not affected whether or not the de-icing components are installed.
4) Below mentioned life limits of the parts apply to all of propeller models and propeller-aircraft-
engine combinations, unless stated otherwise.
5)
Life limited parts of AV series propellers for turbine engines
Part
Life limit
Blade . . . . . . . . . . . . . . . . . 12 000 hours
Hub . . . . . . . . . . . . . . . . . . 12 000 hours
Bearing race . . . . . . . . . . . 12 000 hours
Blade bushing . . . . . . . . . . 12 000 hours (if applicable)
Cylinder . . . . . . . . . . . . . . . 12 000 hours (if applicable)
61-10-20
AIRWORTHINESS LIMITATIONS
Page 1-1
2017-10-06
