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AIM

4/20/23

Appendix 4

9

FAA Form 7233

 International Flight Plan

(c) Transponder Capabilities (Item 10b)

For domestic flights, it is not necessary to indicate Mode S capability. It is acceptable to simply

file one of the following codes in TBL 4

8.

TBL 4

8

Mode C

Capability

Item 10b

Transponder with no Mode C

A

Transponder with Mode C

C

International flights must file in accordance with relevant AIPs and regional supplements. Include

one of the Mode S codes in TBL 4

9, if appropriate.

NOTE

File only one transponder code.

TBL 4

9

Mode S

Capability

Aircraft

ID

Altitude

Encoding

Item

10b

Mode S Transponder

No

No

X

Mode S Transponder

No

Yes

P

Mode S Transponder

Yes

No

I

Mode S Transponder

Yes

Yes

S

Mode S Transponder with Extended Squitter

Yes

Yes

E

Enhanced Mode S Transponder

Yes

Yes

H

Enhanced Mode S Transponder with Extended Squitter

Yes

Yes

L

(d) ADS

B Capabilities (Item 10b, Item 18 SUR/ and Item 18 CODE/)

Indicate ADS

B capability as shown in TBL 4

10. The accompanying entry in Item 18 indicates

that the equipment is compliant with 14 CFR §91.227. Some ADS

B equipment used in other countries is

based on an earlier standard and does not meet U.S. requirements.

Do not file an ADS

B code for “in” capability only. There is currently no way to indicate that an

aircraft has “in” capability but no “out” capability.

For aircraft with ADS

B “out” on one frequency and “in” on another, include only the ADS

B

“out” code. For example, B1 or U1, (See TBL 4

10).

TBL 4

10

ADS

B Capabilities

Capability

Item

10b

Item 18

SUR/

1090 ES Out Capability

B1

260B

1090 ES Out and In Capability

B2

260B

UAT Out Capability

U1

282B

UAT Out and In Capability

U2

282B