spaschal on DSK3GDR082PROD with CFR

Federal Aviation Administration, DOT

Section 29.1522

(4) The maximum allowable oil temperature.
(g) Thirty-minute OEI power operation.
Unless otherwise authorized, the use of
30-minute OEI power must be limited
to multiengine, turbine-powered rotorcraft for not longer than 30 minutes
after failure of an engine. The use of 30minute OEI power must also be limited
by - 
(1) The maximum rotational speed,
which may not be greater than - 
(i) The maximum value determined
by the rotor design; or
(ii) The maximum value shown during the type tests;
(2) The maximum allowable gas temperature;
(3) The maximum allowable torque;
and
(4) The maximum allowable oil temperature.
(h) Continuous OEI power operation.
Unless otherwise authorized, the use of
continuous OEI power must be limited
to multiengine, turbine-powered rotorcraft for continued flight after failure
of an engine. The use of continuous
OEI power must also be limited by - 
(1) The maximum rotational speed,
which may not be greater than - 
(i) The maximum value determined
by the rotor design; or
(ii) The maximum value shown during the type tests.
(2) The maximum allowable gas temperature;
(3) The maximum allowable torque;
and
(4) The maximum allowable oil temperature.
(i) Rated 30-second OEI power operation. Rated 30-second OEI power is
permitted only on multiengine, turbine-powered rotorcraft, also certificated for the use of rated 2-minute OEI
power, and can only be used for continued operation of the remaining engine(s) after a failure or precautionary
shutdown of an engine. It must be
shown that following application of 30second OEI power, any damage will be
readily detectable by the applicable inspections and other related procedures
furnished in accordance with Section
A29.4 of appendix A of this part and
Section A33.4 of appendix A of part 33.
The use of 30-second OEI power must be
limited to not more than 30 seconds for

any period in which that power is used,
and by - 
(1) The maximum rotational speed
which may not be greater than - 
(i) The maximum value determined
by the rotor design; or
(ii) The maximum value demonstrated during the type tests;
(2) The maximum allowable gas temperature; and
(3) The maximum allowable torque.
(j) Rated 2-minute OEI power operation. Rated 2-minute OEI power is permitted only on multiengine, turbinepowered rotorcraft, also certificated
for the use of rated 30-second OEI
power, and can only be used for continued operation of the remaining engine(s) after a failure or precautionary
shutdown of an engine. It must be
shown that following application of 2minute OEI power, any damage will be
readily detectable by the applicable inspections and other related procedures
furnished in accordance with Section
A29.4 of appendix a of this part and
Section A33.4 of appendix A of part 33.
The use of 2-minute OEI power must be
limited to not more than 2 minutes for
any period in which that power is used,
and by - 
(1) The maximum rotational speed,
which may not be greater than - 
(i) The maximum value determined
by the rotor design; or
(ii) The maximum value demonstrated during the type tests;
(2) The maximum allowable gas temperature; and
(3) The maximum allowable torque.
(Secs. 313(a), 601, 603, 604, and 605 of the Federal Aviation Act of 1958 (49 U.S.C. 1354(a),
1421, 1423, 1424, and 1425); and sec. 6(c), Dept.
of Transportation Act (49 U.S.C. 1655(c)))
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29-1, 30 FR 8778, July 13,
1965; Amdt. 29-3, 33 FR 971, Jan. 26, 1968;
Amdt. 29-15, 43 FR 2327, Jan. 16, 1978; Amdt.
29-26, 53 FR 34220, Sept. 2, 1988; Amdt. 29-34,
59 FR 47768, Sept. 16, 1994; Amdt. 29-41, 62 FR
46173, Aug. 29, 1997]

Section 29.1522 Auxiliary power unit limitations.
If an auxiliary power unit that meets
the requirements of TSO-C77 is installed in the rotorcraft, the limitations established for that auxiliary
power unit under the TSO including
the categories of operation must be

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