title-14-part-29-sec29-1543

674

14 CFR Ch. I (1–1–24 Edition)

§ 29.1522

shown that following application of 2-
minute OEI power, any damage will be
readily detectable by the applicable in-
spections 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 dem-

onstrated during the type tests;

(2) The maximum allowable gas tem-

perature; and

(3) The maximum allowable torque.

(Secs. 313(a), 601, 603, 604, and 605 of the Fed-
eral 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]

§ 29.1522

Auxiliary power unit limita-

tions.

If an auxiliary power unit that meets

the requirements of TSO-C77 is in-
stalled in the rotorcraft, the limita-
tions established for that auxiliary
power unit under the TSO including
the categories of operation must be
specified as operating limitations for
the rotorcraft.

(Secs. 313(a), 601, 603, 604, Federal Aviation
Act of 1958 (49 U.S.C. 1354(a), 1421, 1423), sec.
6(c), Dept. of Transportation Act (49 U.S.C.
1655(c)))

[Amdt. 29–17, 43 FR 50602, Oct. 30, 1978]

§ 29.1523

Minimum flight crew.

The minimum flight crew must be es-

tablished so that it is sufficient for safe
operation, considering—

(a) The workload on individual crew-

members;

(b) The accessibility and ease of oper-

ation of necessary controls by the ap-
propriate crewmember; and

under § 29.1525.

§ 29.1525

Kinds of operations.

The kinds of operations (such as

VFR, IFR, day, night, or icing) for
which the rotorcraft is approved are es-
tablished by demonstrated compliance
with the applicable certification re-
quirements and by the installed equip-
ment.

[Amdt. 29–24, 49 FR 44440, Nov. 6, 1984]

§ 29.1527

Maximum operating altitude.

The maximum altitude up to which

operation is allowed, as limited by
flight, structural, powerplant, func-
tional, or equipment characteristics,
must be established.

(Secs. 313(a), 601, 603, 604, and 605 of the Fed-
eral 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)))

[Amdt. 29–15, 43 FR 2327, Jan. 16, 1978]

§ 29.1529

Instructions for Continued

Airworthiness.

The applicant must prepare Instruc-

tions for Continued Airworthiness in
accordance with appendix A to this
part that are acceptable to the Admin-
istrator. The instructions may be in-
complete at type certification if a pro-
gram exists to ensure their completion
prior to delivery of the first rotorcraft
or issuance of a standard certificate of
airworthiness, whichever occurs later.

[Amdt. 29–20, 45 FR 60178, Sept. 11, 1980]

ARKINGS AND

LACARDS

§ 29.1541

General.

(a) The rotorcraft must contain—
(1) The markings and placards speci-

fied in §§ 29.1545 through 29.1565; and

(2) Any additional information, in-

strument markings, and placards re-
quired for the safe operation of the
rotorcraft if it has unusual design, op-
erating or handling characteristics.

(b) Each marking and placard pre-

scribed in paragraph (a) of this sec-
tion—

(1) Must be displayed in a con-

spicuous place; and

(2) May not be easily erased, dis-

figured, or obscured.

§ 29.1543

Instrument markings: gen-

eral.

For each instrument—

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§ 29.1555

(a) When markings are on the cover

glass of the instrument there must be
means to maintain the correct align-
ment of the glass cover with the face of
the dial; and

(b) Each arc and line must be wide

enough, and located to be clearly visi-
ble to the pilot.

§ 29.1545

Airspeed indicator.

(a) Each airspeed indicator must be

marked as specified in paragraph (b) of
this section, with the marks located at
the corresponding indicated airspeeds.

(b) The following markings must be

made:

(1) A red line:
(i) For rotorcraft other than heli-

copters, at V

(ii) For helicopters, at V

(power-

on).

(iii) For helicopters, at V

(power-

off). If V

(power-off) is less than V

(power-on) and both are simulta-
neously displayed, the red line at V

(power-off) must be clearly distinguish-
able from the red line at V

(power-

on).

(2) [Reserved]
(3) For the caution range, a yellow

range.

(4) For the normal operating range, a

green or unmarked range.

(Secs. 313(a), 601, 603, 604, and 605 of the Fed-
eral 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. 29–15, 43 FR 2327, Jan. 16,
1978; 43 FR 3900, Jan. 30, 1978; Amdt. 29–17, 43
FR 50602, Oct. 30, 1978; Amdt. 29–59, 88 FR
8740, Feb. 10, 2023]

§ 29.1547

Magnetic direction indicator.

(a) A placard meeting the require-

ments of this section must be installed
on or near the magnetic direction indi-
cator.

(b) The placard must show the cali-

bration of the instrument in level
flight with the engines operating.

the calibration was made with radio re-
ceivers on or off.

(d) Each calibration reading must be

in terms of magnetic heading in not
more than 45 degree increments.

§ 29.1549

Powerplant instruments.

For each required powerplant instru-

ment, as appropriate to the type of in-
struments—

(a) Each maximum and, if applicable,

minimum safe operating limit must be
marked with a red line;

(b) Each normal operating range

must be marked as a green or un-
marked range;

range must be marked with a yellow
range or yellow line;

(d) Each engine or rotor range that is

restricted because of excessive vibra-
tion stresses must be marked with red
ranges or red lines; and

(e) Each OEI limit or approved oper-

ating range must be marked to be
clearly differentiated from the mark-
ings of paragraphs (a) through (d) of
this section except that no marking is
normally required for the 30-second
OEI limit.

[Amdt. 29–12, 41 FR 55474, Dec. 20, 1976, as
amended by Amdt. 29–26, 53 FR 34220, Sept. 2,
1988; Amdt. 29–34, 59 FR 47769, Sept. 16, 1994;
Amdt. 29–59, 88 FR 8739, Feb. 10, 2023]

§ 29.1551

Oil quantity indicator.

Each oil quantity indicator must be

marked with enough increments to in-
dicate readily and accurately the quan-
tity of oil.

§ 29.1553

Fuel quantity indicator.

If the unusable fuel supply for any

tank exceeds one gallon, or five per-
cent of the tank capacity, whichever is
greater, a red arc must be marked on
its indicator extending from the cali-
brated zero reading to the lowest read-
ing obtainable in level flight.

§ 29.1555

Control markings.

(a) Each cockpit control, other than

primary flight controls or control
whose function is obvious, must be
plainly marked as to its function and
method of operation.

(b) For powerplant fuel controls—
(1) Each fuel tank selector valve con-

trol must be marked to indicate the po-
sition corresponding to each tank and
to each existing cross feed position;

(2) If safe operation requires the use

of any tanks in a specific sequence,
that sequence must be marked on, or

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