86
14 CFR Ch. I (1–1–24 Edition)
§ 121.101
the requirements of paragraph (d) of
this section as of February 15, 2007.
[Doc. No. 28154, 62 FR 13256, Mar. 19, 1997, as
amended by Amdt. 121–329, 72 FR 1878, Jan.
16, 2007; Amdt. 121–333, 72 FR 31680, June 7,
2007; Docket FAA–2018–0119, Amdt. 121–380, 83
FR 9173, Mar. 5, 2018]
§ 121.101 Weather reporting facilities.
(a) Each certificate holder con-
ducting domestic or flag operations
must show that enough weather report-
ing services are available along each
route to ensure weather reports and
forecasts necessary for the operation.
(b) Except as provided in paragraph
(d) of this section, no certificate holder
conducting domestic or flag operations
may use any weather report to control
flight unless—
(1) For operations within the 48 con-
tiguous States and the District of Co-
lumbia, it was prepared by the U.S. Na-
tional Weather Service or a source ap-
proved by the U.S. National Weather
Service; or
(2) For operations conducted outside
the 48 contiguous States and the Dis-
trict of Columbia, it was prepared by a
source approved by the Administrator.
(c) Each certificate holder con-
ducting domestic or flag operations
that uses forecasts to control flight
movements shall use forecasts prepared
from weather reports specified in para-
graph (b) of this section and from any
source approved under its system
adopted pursuant to paragraph (d) of
this section.
(d) Each certificate holder con-
ducting domestic or flag operations
shall adopt and put into use an ap-
proved system for obtaining forecasts
and reports of adverse weather phe-
nomena, such as clear air turbulence,
thunderstorms, and low altitude wind
shear, that may affect safety of flight
on each route to be flown and at each
airport to be used.
[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as
amended by Amdt. 121–27, 36 FR 13911, July
28, 1971; Amdt. 121–134, 42 FR 27573, May 31,
1977; Amdt. 121–253, 61 FR 2610, Jan. 26, 1996]
§ 121.103 En route navigation facili-
ties.
(a) Except as provided in paragraph
(b) of this section, each certificate
holder conducting domestic or flag op-
erations must show, for each proposed
route (including to any regular, provi-
sional, refueling or alternate airports),
that suitable navigation aids are avail-
able to navigate the airplane along the
route within the degree of accuracy re-
quired for ATC. Navigation aids re-
quired for approval of routes outside of
controlled airspace are listed in the
certificate holder’s operations speci-
fications except for those aids required
for routes to alternate airports.
(b) Navigation aids are not required
for any of the following operations—
(1) Day VFR operations that the cer-
tificate holder shows can be conducted
safely by pilotage because of the char-
acteristics of the terrain;
(2) Night VFR operations on routes
that the certificate holder shows have
reliably lighted landmarks adequate
for safe operation; and
(3) Other operations approved by the
responsible Flight Standards office.
[Doc. No. FAA–2002–14002, 72 FR 31681, June 7,
2007, as amended by Docket FAA–2018–0119,
Amdt. 121–380, 83 FR 9173, Mar. 5, 2018]
§ 121.105 Servicing and maintenance
facilities.
Each certificate holder conducting
domestic or flag operations must show
that competent personnel and adequate
facilities and equipment (including
spare parts, supplies, and materials)
are available at such points along the
certificate holder’s route as are nec-
essary for the proper servicing, mainte-
nance, and preventive maintenance of
airplanes and auxiliary equipment.
[Doc. No. 28154, 61 FR 2610, Jan. 26, 1996]
§ 121.106 ETOPS Alternate Airport:
Rescue and fire fighting service.
(a) Except as provided in paragraph
(b) of this section, the following rescue
and fire fighting service (RFFS) must
be available at each airport listed as an
ETOPS Alternate Airport in a dispatch
or flight release.
(1) For ETOPS up to 180 minutes,
each designated ETOPS Alternate Air-
port must have RFFS equivalent to
that specified by ICAO as Category 4,
or higher.
(2) For ETOPS beyond 180 minutes,
each designated ETOPS Alternate Air-
port must have RFFS equivalent to
that specified by ICAO Category 4, or