831
Federal Aviation Administration, DOT
Pt. 91, App. D
terminated. Upon such showing, the Admin-
istrator may terminate or amend the author-
ization if the Administrator finds that such
action is necessary to protect the environ-
ment, or he may reinstate the authorization
without amendment if he finds that termi-
nation or amendnent is not necessary to pro-
tect the environment.
(b) Findings and actions by the Adminis-
trator under this section do not affect any
certificate issued under title VI of the Fed-
eral Aviation Act of 1958.
[Doc. No. 18334, 54 FR 34327, Aug. 18, 1989]
A
PPENDIX
C
TO
P
ART
91—O
PERATIONS IN
THE
N
ORTH
A
TLANTIC
(NAT) M
IN
-
IMUM
N
AVIGATION
P
ERFORMANCE
S
PECIFICATIONS
(MNPS) A
IRSPACE
Section 1
NAT MNPS airspace is that volume of air-
space between FL 285 and FL 420 extending
between latitude 27 degrees north and the
North Pole, bounded in the east by the east-
ern boundaries of control areas Santa Maria
Oceanic, Shanwick Oceanic, and Reykjavik
Oceanic and in the west by the western
boundary of Reykjavik Oceanic Control
Area, the western boundary of Gander Oce-
anic Control Area, and the western boundary
of New York Oceanic Control Area, excluding
the areas west of 60 degrees west and south
of 38 degrees 30 minutes north.
Section 2
The navigation performance capability re-
quired for aircraft to be operated in the air-
space defined in section 1 of this appendix is
as follows:
(a) The standard deviation of lateral track
errors shall be less than 6.3 NM (11.7 Km).
Standard deviation is a statistical measure
of data about a mean value. The mean is zero
nautical miles. The overall form of data is
such that the plus and minus 1 standard de-
viation about the mean encompasses ap-
proximately 68 percent of the data and plus
or minus 2 deviations encompasses approxi-
mately 95 percent.
(b) The proportion of the total flight time
spent by aircraft 30 NM (55.6 Km) or more off
the cleared track shall be less than 5.3
×
10
¥4
(less than 1 hour in 1,887 flight hours).
(c) The proportion of the total flight time
spent by aircraft between 50 NM and 70 NM
(92.6 Km and 129.6 Km) off the cleared track
shall be less than 13
×
10
¥5
(less than 1 hour
in 7,693 flight hours.)
Section 3
Air traffic control (ATC) may authorize an
aircraft operator to deviate from the re-
quirements of § 91.705 for a specific flight if,
at the time of flight plan filing for that
flight, ATC determines that the aircraft may
be provided appropriate separation and that
the flight will not interfere with, or impose
a burden upon, the operations of other air-
craft which meet the requirements of § 91.705.
[Doc. No. 18334, 54 FR 34327, Aug. 18, 1989, as
amended by Amdt. 91–254, 62 FR 17487, Apr. 9,
1997]
A
PPENDIX
D
TO
P
ART
91—A
IRPORTS
/L
O
-
CATIONS
: S
PECIAL
O
PERATING
R
E
-
STRICTIONS
Section 1. Locations at which the require-
ments of § 91.215(b)(2) and § 91.225(d)(2) apply.
The requirements of §§ 91.215(b)(2) and
91.225(d)(2) apply below 10,000 feet MSL with-
in a 30-nautical-mile radius of each location
in the following list.
Atlanta, GA (The William B. Hartsfield At-
lanta International Airport)
Baltimore, MD (Baltimore Washington Inter-
national Airport)
Boston, MA (General Edward Lawrence
Logan International Airport)
Chantilly, VA (Washington Dulles Inter-
national Airport)
Charlotte, NC (Charlotte/Douglas Inter-
national Airport)
Chicago, IL Chicago-O’Hare International
Airport)
Cleveland, OH (Cleveland-Hopkins Inter-
national Airport)
Covington, KY (Cincinnati Northern Ken-
tucky International Airport)
Dallas, TX (Dallas/Fort Worth Regional Air-
port)
Denver, CO (Denver International Airport)
Detroit, MI (Metropolitan Wayne County
Airport)
Honolulu, HI (Honolulu International Air-
port)
Houston, TX (George Bush Intercontinental
Airport/Houston)
Kansas City, KS (Mid-Continent Inter-
national Airport)
Las Vegas, NV (McCarran International Air-
port)
Los Angeles, CA (Los Angeles International
Airport)
Memphis, TN (Memphis International Air-
port)
Miami, FL (Miami International Airport)
Minneapolis, MN (Minneapolis-St. Paul
International Airport)
Newark, NJ (Newark International Airport)
New Orleans, LA (New Orleans International
Airport-Moisant Field)
New York, NY (John F. Kennedy Inter-
national Airport)
New York, NY (LaGuardia Airport)
Orlando, FL (Orlando International Airport)
Philadelphia, PA (Philadelphia International
Airport)
Phoenix, AZ (Phoenix Sky Harbor Inter-
national Airport)
VerDate Mar<15>2010
20:48 Jan 30, 2014
Jkt 232047
PO 00000
Frm 00841
Fmt 8010
Sfmt 8002
Q:\14\14V2.TXT
ofr150
PsN: PC150