907 

Federal Aviation Administration, DOT 

§ 189.3 

W

1

H

1

= hourly PC&B rate for employee 1, 

times estimated hours 

W

2

H

2

= hourly PC&B rate for employee 2, 

etc., times estimated hours 

T = estimated travel and transportation ex-

penses 

O = other agency costs related to each activ-

ity including overhead. 

(3) In no event will the applicant be 

charged more than the actual FAA costs of 
providing production certification-related 
services. 

(4) If the actual FAA costs vary from the 

estimated fees by more than 10 percent, writ-
ten notice by the FAA will be given to the 
applicant as soon as possible. 

(5) If FAA costs exceed the estimated fees, 

the applicant will be required to pay the dif-
ference prior to receiving further services. If 
the estimated fees exceed the FAA costs, the 
applicant may elect to apply the balance to 
future agreements or to receive a refund. 

(f) Fees will be reviewed by the FAA peri-

odically and adjusted either upward or down-
ward in order to reflect the current costs of 
performing production certification-related 
services outside the United States. 

(1) Notice of any change to the elements of 

the fee formula in this Appendix will be pub-
lished in the F

EDERAL

R

EGISTER

. 

(2) Notice of any change to the method-

ology in this Appendix and other changes for 
the fees will be published in the F

EDERAL

 

R

EGISTER

. 

[Doc. No. 28967, 62 FR 55703, Oct. 27, 1997] 

PART 189—USE OF FEDERAL AVIA-

TION ADMINISTRATION COMMU-
NICATIONS SYSTEM 

Sec. 
189.1

Scope. 

189.3

Kinds of messages accepted or relayed. 

189.5

Limitation of liability. 

A

UTHORITY

: 31 U.S.C. 9701; 49 U.S.C. 106(g), 

40104, 40113, 44502, 45303. 

S

OURCE

: Docket No. 27778, 60 FR 39615, Aug. 

2, 1995, unless otherwise noted. 

§ 189.1 Scope. 

This part describes the kinds of mes-

sages that may be transmitted or re-
layed by FAA Flight Service Stations. 

§ 189.3 Kinds of messages accepted or 

relayed. 

(a) Flight Service Stations may ac-

cept for transmission over FAA com-
munication systems any messages con-
cerning international or overseas air-
craft operations described in para-
graphs (a) (1) through (6) of this sec-

tion. In addition, Flight Service Sta-
tions may relay any message described 
in this section that was originally ac-
cepted for transmission at an FAA 
Flight Service Station outside the 48 
contiguous States, or was received 
from a foreign station of the Aero-
nautical Fixed Telecommunications 
Network that, in normal routing, 
would require transit of the United 
States to reach an overseas address: 

(1) Distress messages and distress 

traffic. 

(2) Messages concerning the safety of 

human life. 

(3) Flight safety messages con-

cerning— 

(i) Air traffic control, including— 
(A) Messages concerning aircraft in 

flight or about to depart; 

(B) Departure messages; 
(C) Flight plan departure messages; 
(D) Arrival messages; 
(E) Flight plan messages; 
(F) Flight notification messages; 
(G) Messages concerning flight can-

cellation; and 

(H) Messages concerning delayed de-

parture; 

(ii) Position reports from aircraft; 
(iii) Messages originated by an air-

craft operating agency of immediate 
concern to an aircraft in flight or 
about to depart; and 

(iv) Meteorological advice of imme-

diate concern to an aircraft in flight or 
about to depart. 

(4) Meteorological messages con-

cerning— 

(i) Meteorological forecasts; 
(ii) Meteorological observations ex-

clusively; or 

(iii) Other meteorological informa-

tion exchanged between meteorological 
offices. 

(5) Aeronautical administrative mes-

sages— 

(i) Concerning the operation or main-

tenance of facilities essential to the 
safety or regulatory of aircraft oper-
ation; 

(ii) Essential to efficient functioning 

of aeronautical telecommunications; or 

(iii) Between civil aviation authori-

ties concerning aircraft operation. 

(6) Notices to airmen. 
(b) The following messages may only 

be relayed through the FAA commu-
nications systems: