Federal Aviation Administration, DOT

Section 121.628

the authorized ETOPS maximum diversion time. In selecting these ETOPS
Alternate Airports, the certificate
holder must consider all adequate airports within the authorized ETOPS diversion time for the flight that meet
the standards of this part.
(b) No person may list an airport as
an ETOPS Alternate Airport in a dispatch or flight release unless, when it
might be used (from the earliest to the
latest possible landing time) - 
(1) The appropriate weather reports
or forecasts, or any combination thereof, indicate that the weather conditions will be at or above the ETOPS Alternate Airport minima specified in
the certificate holder-s operations
specifications; and
(2) The field condition reports indicate that a safe landing can be made.
(c) Once a flight is en route, the
weather conditions at each ETOPS Alternate Airport must meet the requirements of Section 121.631 (c).
(d) No person may list an airport as
an ETOPS Alternate Airport in the dispatch or flight release unless that airport meets the public protection requirements of Section 121.97(b)(1)(ii).
[Doc. No. FAA-2002-6717, 72 FR 1881, Jan. 16,
2007]

Section 121.625 Alternate Airport weather
minima.
Except as provided in Section 121.624 for
ETOPS Alternate Airports, no person
may list an airport as an alternate in
the dispatch or flight release unless the
appropriate weather reports or forecasts, or any combination thereof, indicate that the weather conditions will
be at or above the alternate weather
minima specified in the certificate
holder-s operations specifications for
that airport when the flight arrives.
[Doc. No. FAA-2002-6717, 72 FR 1881, Jan. 16,
2007]

Section 121.627 Continuing flight in unsafe
conditions.
(a) No pilot in command may allow a
flight to continue toward any airport
to which it has been dispatched or released if, in the opinion of the pilot in
command or dispatcher (domestic and
flag operations only), the flight cannot
be completed safely; unless, in the
opinion of the pilot in command, there

is no safer procedure. In that event,
continuation toward that airport is an
emergency situation as set forth in
Section 121.557.
(b) If any instrument or item of
equipment required under this chapter
for the particular operation becomes
inoperative en route, the pilot in command shall comply with the approved
procedures for such an occurrence as
specified in the certificate holder-s
manual.
[Doc. No. 6258, 29 FR 1922, Dec. 31, 1964, as
amended by Amdt. 121-222, 56 FR 12310, Mar.
22, 1991; Amdt. 121-253, 61 FR 2615, Jan. 26,
1996]

Section 121.628 Inoperable instruments and
equipment.
(a) No person may take off an airplane with inoperable instruments or
equipment installed unless the following conditions are met:
(1) An approved Minimum Equipment
List exists for that airplane.
(2) The responsible Flight Standards
office has issued the certificate holder
operations specifications authorizing
operations in accordance with an approved Minimum Equipment List. The
flight crew shall have direct access at
all times prior to flight to all of the information contained in the approved
Minimum Equipment List through
printed or other means approved by the
Administrator in the certificate holders operations specifications. An approved Minimum Equipment List, as
authorized by the operations specifications, constitutes an approved change
to the type design without requiring
recertification.
(3) The approved Minimum Equipment List must:
(i) Be prepared in accordance with
the limitations specified in paragraph
(b) of this section.
(ii) Provide for the operation of the
airplane with certain instruments and
equipment in an inoperable condition.
(4) Records identifying the inoperable
instruments and equipment and the information
required
by
paragraph
(a)(3)(ii) of this section must be available to the pilot.
(5) The airplane is operated under all
applicable conditions and limitations
contained in the Minimum Equipment
List and the operations specifications

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