Federal Aviation Administration, DOT

Pt. 121, App. G
Required

Maneuvers/Procedures

VII. Emergency Procedures:
Each applicant must demonstrate the proper emergency procedures for as many of the emergency situations listed below
as the person conducting the check finds are necessary to
determine that the person being checked has an adequate
knowledge of, and ability to perform, such procedure:
(a) Fire in flight .....................................................................
(b) Smoke control .................................................................
(c) Rapid decompression .....................................................
(d) Emergency descent ........................................................
(e) Any other emergency procedures outlined in the appropriate approved Airplane Flight Manual ...........................

Permitted

Simulated
instrument
conditions

Inflight

Visual
simulator

.................
.................
.................
.................

...........
...........
...........
...........

..........
..........
..........
..........

.................

...........

..........

Nonvisual
simulator

Training
device

Waiver
provisions of
Section 121.441(d)

B
B
B
B

..........
..........
..........
..........

......................
......................
......................
......................

B

..........

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[Doc. No. 9509, 35 FR 99, Jan. 3, 1970, as amended by Amdt. 121-80, 36 FR 19362, Oct. 5, 1971;
Amdt. 121-91, 37 FR 10730, May 27, 1972; Amdt. 121-92, 37 FR 12717, June 28, 1972; Amdt. 121-
108, 38 FR 35448, Dec. 28, 1973; Amdt. 121-136, 42 FR 43389, Aug. 29, 1977; Amdt. 121-366, 78 FR
67844, Nov. 12, 2013; Docket FAA-2013-0485, Amdt. 121-376, 81 FR 90175, Dec. 13, 2016; Amdt. 121-
376B, 83 FR 1187, Jan. 10, 2018; 83 FR 4420, Jan. 31, 2018]

APPENDIX G TO PART 121 - DOPPLER
RADAR AND INERTIAL NAVIGATION
SYSTEM (INS): REQUEST FOR EVALUATION; EQUIPMENT AND EQUIPMENT
INSTALLATION; TRAINING PROGRAM;
EQUIPMENT ACCURACY AND RELIABILITY; EVALUATION PROGRAM
1. Application authority. (a) An applicant for
authority to use a Doppler Radar or Inertial
Navigation System must submit a request
for evaluation of the system to the responsible Flight Standards office charged with
the overall inspection of its operations 30
days prior to the start of evaluation flights.
(b) The application must contain:
(1) A summary of experience with the system showing to the satisfaction of the Administrator a history of the accuracy and reliability of the system proposed to be used.
(2) A training program curriculum for initial approval under Section 121.405.
(3) A maintenance program for compliance
with subpart L of this part.
(4) A description of equipment installation.
(5) Proposed revisions to the Operations
Manual outlining all normal and emergency
procedures relative to use of the proposed
system, including detailed methods for continuing the navigational function with partial or complete equipment failure, and
methods for determining the most accurate
system when an unusually large divergence
between systems occurs. For the purpose of
this appendix, a large divergence is a divergence that results in a track that falls beyond clearance limits.
(6) Any proposed revisions to the minimum
equipment list with adequate justification
therefor.
(7) A list of operations to be conducted
using the system, containing an analysis of

each with respect to length, magnetic compass reliability, availability of en route aids,
and adequacy of gateway and terminal radio
facilities to support the system. For the purpose of this appendix, a gateway is a specific
navigational fix where use of long range
navigation commences or terminates.
2. Equipment and equipment installation - Inertial Navigation Systems (INS) or Doppler
Radar System. (a) Inertial Navigation and
Doppler Radar Systems must be installed in
accordance with applicable airworthiness requirements.
(b) Cockpit arrangement must be visible
and useable by either pilot seated at his duty
station.
(c) The equipment must provide, by visual,
mechanical, or electrical output signals, indications of the invalidity of output data
upon the occurrence of probable failures or
malfunctions within the system.
(d) A probable failure or malfunction within the system must not result in loss of the
aircraft-s required navigation capability.
(e) The alignment, updating, and navigation computer functions of the system must
not be invalidated by normal aircraft power
interruptions and transients.
(f) The system must not be the source of
cause of objectionable radio frequency interference, and must not be adversely affected
by radio frequency interference from other
aircraft systems.
(g) The FAA-approved airplane flight manual, or supplement thereto, must include
pertinent material as required to define the
normal and emergency operating procedures
and applicable operating limitations associated with INS and Doppler performance
(such as maximum latitude at which ground
alignment capability is provided, or deviations between systems).

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