**AMC comments as of 31 May 2008**

**Legend for Cat Column:**

C Confusing, clarification, erroneous information, or invalid argument

E Editorial

I Inconsistency

S Showstopper

A Additional material

\[To be completed by comment author\]

  --------------- -------------------------------------------------------
  **Name:**       John A Brown

  **Company:**    Boeing

  **Tel.          +1 425 266 0787
  Number:**       

  **eMail:**      john.a.brown@boeing.com
  --------------- -------------------------------------------------------

  --------------- -------------------------------------------------------
  **Name:**       PICARD

  **Company:**    EGIS AVIA (for Eurocontrol)

  **Tel.          
  Number:**       

  **eMail:**      frederic.picard@egis.fr
  --------------- -------------------------------------------------------

+------+-----+-----+---------------------+---+---------------------+---+
| **P  | **C | **C | **Description of    | * | **Resolution        | * |
| arag | omm | omm | comment and         | * | Status**            | * |
| raph | ent | ent | proposed            | C |                     | S |
| ref  | Nu  | Au  | resolution**        | a |                     | t |
| eren | mbe | tho |                     | t |                     | a |
| ce** | r** | r** |                     | * |                     | t |
|      |     |     |                     | * |                     | u |
|      |     |     |                     |   |                     | s |
|      |     |     |                     |   |                     | * |
|      |     |     |                     |   |                     | * |
+======+=====+=====+=====================+===+=====================+===+
| 1.1  | AM  | JAB | **COMMENT:** A =    | C | JH Acronyms and     | C |
|      | C-1 |     | Avai                |   | defs reviewed and   | l |
|      |     |     | lability.....except |   | updated in 13 May   | o |
|      |     |     | in this document A  |   | version (final      | s |
|      |     |     | = Applicable as     |   | updating will be    | e |
|      |     |     | part of N/A         |   | done during final   | d |
|      |     |     |                     |   | doc edits)          |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Make consistent     |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.1  | AM  | JAB | **COMMENT:** C =    | C | JH Acronyms and     | C |
|      | C-2 |     | Co                  |   | defs reviewed and   | l |
|      |     |     | ntinuity.....except |   | updated in 13 May   | o |
|      |     |     | in this document C  |   | version (final      | s |
|      |     |     | = Current,          |   | updating will be    | e |
|      |     |     | Communication,      |   | done during final   | d |
|      |     |     | Controller,         |   | doc edits)          |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Make consistent     |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.1  | AM  | JAB | **COMMENT:** I =    | C | JH Acronyms and     | C |
|      | C-3 |     | I                   |   | defs reviewed and   | l |
|      |     |     | ntegrity.....except |   | updated in 13 May   | o |
|      |     |     | in this document I  |   | version final       | s |
|      |     |     | = Instrument,       |   | updating will be    | e |
|      |     |     | International or    |   | done during final   | d |
|      |     |     | Roman numeral       |   | doc edits)          |   |
|      |     |     | 'one'.              |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:** Make |   |                     |   |
|      |     |     | consistent          |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AM  | JAB | **COMMENT:** ground | A | SG-1 22 May 2008    | C |
| .3.1 | C-4 |     | domain includes a   |   | Reject, We don't    | l |
|      |     |     | controller, HMI,    |   | have voice depicted | o |
|      |     |     | and ground system   |   | in any of the       | s |
|      |     |     | to process the AMC  |   | services; but have  | e |
|      |     |     | messages, and an    |   | an environmental    | d |
|      |     |     | interface with the  |   | condition that it   |   |
|      |     |     | ground              |   | remains available   |   |
|      |     |     | communication       |   | -- we do not want   |   |
|      |     |     | network.....it must |   | to dilute the focus |   |
|      |     |     | also include a      |   | on data.            |   |
|      |     |     | voice communication |   |                     |   |
|      |     |     | function (which may |   |                     |   |
|      |     |     | be separate from    |   |                     |   |
|      |     |     | all of the above)   |   |                     |   |
|      |     |     | otherwise there     |   |                     |   |
|      |     |     | will be nothing for |   |                     |   |
|      |     |     | the controller to   |   |                     |   |
|      |     |     | try to solve.       |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:** Add. |   |                     |   |
|      |     |     | Same applies in     |   |                     |   |
|      |     |     | 1.3.3               |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.4  | AM  | JAB | **COMMENT:** The    | I | SG-1 22 May 2008    | C |
| OR-A | C-5 |     | ACM service shall   |   | Reject yes Its      | l |
| MC-1 |     |     | be a complete prior |   | operational its     | o |
|      |     |     | to initiating       |   | where we get CPDLC  | s |
|      |     |     | addressed           |   | started and we do   | e |
|      |     |     | AMC.....This is not |   | not want to put the | d |
|      |     |     | an operational      |   | start and possible  |   |
|      |     |     | requirement -- it's |   | flight plan         |   |
|      |     |     | a technical         |   | correlation in each |   |
|      |     |     | requirement         |   | service             |   |
|      |     |     | occasioned by the   |   |                     |   |
|      |     |     | design of the       |   |                     |   |
|      |     |     | system.             |   |                     |   |
|      |     |     | Operationally it's  |   |                     |   |
|      |     |     | an inconvenience.   |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Discuss             |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AM  | JAB | **COMMENT:** The    | C | SG-1 22 May 2008    | C |
| .4.1 | C-6 |     | controller and/or   |   | Accepted 3 stays in | l |
| OR-A |     |     | ATSU shall have the |   | 5 is deleted        | o |
| MC-5 |     |     | capability to       |   |                     | s |
|      |     |     | initiate AMC        |   |                     | e |
|      |     |     | messages......(how) |   |                     | d |
|      |     |     | does this differ    |   |                     |   |
|      |     |     | from OR-AMC-3?      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | SUGGESTED CHANGE TO |   |                     |   |
|      |     |     | DOCUMENT:           |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Clarify or          |   |                     |   |
|      |     |     | minimize.           |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AM  | JAB | **COMMENT:** ACM is | C | JH Yes, changed in  | C |
| .5.1 | C-7 |     | a prerequisite for  |   | May 13 version      | l |
|      |     |     | addressed           |   |                     | o |
|      |     |     | ACM.....should this |   |                     | s |
|      |     |     | be'for addressed    |   |                     | e |
|      |     |     | AMC'?               |   |                     | d |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Clarify             |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.5  | AM  | JAB | **COMMENT:** then   | A | SG-1 22 May 2008 In | C |
| .2.1 | C-8 |     | correct the         |   | general we have     | l |
| Step |     |     | problem, if         |   | found it is         | o |
| 2    |     |     | applicable.....how  |   | physically stuck -- | s |
|      |     |     | will the crew know? |   | the mic has been    | e |
|      |     |     | The switch is       |   | keyed and not       | d |
|      |     |     | unlikely to be      |   | released or         |   |
|      |     |     | physically stuck.   |   | otherwise depressed |   |
|      |     |     | The symptom to the  |   | due to being stuck  |   |
|      |     |     | crew is that they   |   | under the seat this |   |
|      |     |     | receive nothing on  |   | is the case here    |   |
|      |     |     | that frequency      |   | where this action   |   |
|      |     |     | since the           |   | blocks everyone     |   |
|      |     |     | transmitter blocks  |   | else. Other radio   |   |
|      |     |     | the receiver. How   |   | comm. Failures are  |   |
|      |     |     | much does this      |   | not covered by this |   |
|      |     |     | affect the          |   | service.            |   |
|      |     |     | probability of      |   |                     |   |
|      |     |     | success?            |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Maybe add a note    |   |                     |   |
|      |     |     | for the safety      |   |                     |   |
|      |     |     | folks.              |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.5  | AM  | JAB | **COMMENT:**        | C | JH the FAA has      | C |
| .3.1 | C-9 |     | Inclusion of the    |   | determined that     | l |
| OR-A |     |     | frequency shall be  |   | when they spedify   | o |
| MC-9 |     |     | optional in UM157.  |   | the frequency in    | s |
|      |     |     | ....why? It makes   |   | the check stuck mic | e |
|      |     |     | the crew's          |   | message; then       | d |
|      |     |     | determination of    |   | pilot's tune to the |   |
|      |     |     | whether the         |   | specified frequency |   |
|      |     |     | 'microphone is      |   | which in this case  |   |
|      |     |     | stuck' more         |   | we don't want. So   |   |
|      |     |     | problematical if    |   | to get past this    |   |
|      |     |     | the frequency is    |   | problem the FAA     |   |
|      |     |     | not known.          |   | does not send the   |   |
|      |     |     |                     |   | frequency in the    |   |
|      |     |     | **SUGGESTED CHANGE  |   | check stuck mic     |   |
|      |     |     | TO DOCUMENT:**      |   | message             |   |
|      |     |     | Discuss             |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| Gen  | AMC | JAB | **COMMENT:** What   | A | SG-1 22 May 2008 we | C |
| eral | -10 |     | is the expected     |   | expect them to      | l |
|      |     |     | crew action? If     |   | unstuck if it is    | o |
|      |     |     | they receive the    |   | stuck no change     | s |
|      |     |     | message, they find  |   |                     | e |
|      |     |     | they have the       |   |                     | d |
|      |     |     | frequency selected, |   |                     |   |
|      |     |     | and they are not    |   |                     |   |
|      |     |     | receiving on the    |   |                     |   |
|      |     |     | frequency, is it    |   |                     |   |
|      |     |     | standard action to  |   |                     |   |
|      |     |     | turn off the radio? |   |                     |   |
|      |     |     | Or is it left to    |   |                     |   |
|      |     |     | the airline?        |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:** Add  |   |                     |   |
|      |     |     | note to indicate    |   |                     |   |
|      |     |     | expected or range   |   |                     |   |
|      |     |     | of crew actions to  |   |                     |   |
|      |     |     | help out the safety |   |                     |   |
|      |     |     | folks.              |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.1  | AMC | F.  | **COMMENT:**        | E | JH done             | C |
|      | -11 | Pic |                     |   |                     | l |
|      |     | ard | **SUGGESTED CHANGE  |   |                     | o |
|      |     |     | TO DOCUMENT:**      |   |                     | s |
|      |     |     |                     |   |                     | e |
|      |     |     | Add AMC in the      |   |                     | d |
|      |     |     | acronym list        |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1.4  | AMC | F.  | **COMMENT:**        | E | JH done             | C |
|      | -12 | Pic |                     |   |                     | l |
|      |     | ard | Typo.               |   |                     | o |
|      |     |     |                     |   |                     | s |
|      |     |     | **SUGGESTED CHANGE  |   |                     | e |
|      |     |     | TO DOCUMENT:**      |   |                     | d |
|      |     |     |                     |   |                     |   |
|      |     |     | Shall be **~~a~~**  |   |                     |   |
|      |     |     | complete            |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AMC | F.  | **COMMENT:**        | E | JH done             | C |
| .4.2 | -13 | Pic |                     |   |                     | l |
|      |     | ard | Heading number is   |   |                     | o |
|      |     |     | missing.            |   |                     | s |
|      |     |     |                     |   |                     | e |
|      |     |     | **SUGGESTED CHANGE  |   |                     | d |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | **Add 1.4.2**       |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AMC | F.  | **COMMENT:**        | E | JH done             | C |
| .5.1 | -14 | Pic |                     |   |                     | l |
|      |     | ard | Type, ACM instead   |   |                     | o |
|      |     |     | of AMC              |   |                     | s |
|      |     |     |                     |   |                     | e |
|      |     |     | **SUGGESTED CHANGE  |   |                     | d |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | For addressed       |   |                     |   |
|      |     |     | [AMC]{.underline}   |   |                     |   |
|      |     |     | ~~ACM~~             |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AMC | F.  | **COMMENT:**        | I | JH done             | C |
| .5.1 | -15 | Pic |                     |   |                     | l |
|      |     | ard | Both ATSU and       |   |                     | o |
|      |     |     | controller can      |   |                     | s |
|      |     |     | initiate AMC.       |   |                     | e |
|      |     |     |                     |   |                     | d |
|      |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Both addressed and  |   |                     |   |
|      |     |     | broadcast ACM are   |   |                     |   |
|      |     |     | initiated by the    |   |                     |   |
|      |     |     | ATSU [or            |   |                     |   |
|      |     |     | contr               |   |                     |   |
|      |     |     | oller]{.underline}. |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| 1    | AMC | F.  | **COMMENT:**        | A | JH the following    | C |
| .5.1 | -16 | Pic |                     |   | note has been added | l |
|      |     | ard | In the service      |   | to the section:     | o |
|      |     |     | description, an     |   | ***Note:** Some     | s |
|      |     |     | explanation on why  |   | states have found   | e |
|      |     |     | (or when) no        |   | that specifying the | d |
|      |     |     | frequency is sent   |   | blocked frequency   |   |
|      |     |     | to the aircraft.    |   | when instructing    |   |
|      |     |     |                     |   | flight crew(s) to   |   |
|      |     |     | **SUGGESTED CHANGE  |   | check if their      |   |
|      |     |     | TO DOCUMENT:**      |   | microphone result   |   |
|      |     |     |                     |   | in the flight crew  |   |
|      |     |     | Add text in 1.5.1   |   | tuning to the stuck |   |
|      |     |     |                     |   | frequency, and      |   |
|      |     |     |                     |   | therefore do not    |   |
|      |     |     |                     |   | provide the         |   |
|      |     |     |                     |   | frequency in the    |   |
|      |     |     |                     |   | instruction.*       |   |
+------+-----+-----+---------------------+---+---------------------+---+
| Fi   | AMC | F.  | **COMMENT:**        | I | JH done             | C |
| gure | -17 | Pic |                     |   |                     | l |
| 1-3  |     | ard | Free text cannot be |   |                     | o |
| and  |     |     | sent anymore by     |   |                     | s |
| Fi   |     |     | ground.             |   |                     | e |
| gure |     |     |                     |   |                     | d |
| 1-4  |     |     | **SUGGESTED CHANGE  |   |                     |   |
|      |     |     | TO DOCUMENT:**      |   |                     |   |
|      |     |     |                     |   |                     |   |
|      |     |     | Delete 3 times "or  |   |                     |   |
|      |     |     | Freetext" in both   |   |                     |   |
|      |     |     | figures.            |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| T    | AMC | F.  | **COMMENT:**        | E | JH done             | C |
| able | -18 | Pic |                     |   |                     | l |
| 1-4  |     | ard | Typo.               |   |                     | o |
|      |     |     |                     |   |                     | s |
|      |     |     | **SUGGESTED CHANGE  |   |                     | e |
|      |     |     | TO DOCUMENT:**      |   |                     | d |
|      |     |     |                     |   |                     |   |
|      |     |     | Frequenc~           |   |                     |   |
|      |     |     | ~t~~[y]{.underline} |   |                     |   |
+------+-----+-----+---------------------+---+---------------------+---+
| Gen  | AMC | F.  | **COMMENT:**        | Q | [JH mmm I am        | [ |
| eral | -18 | Pic |                     |   | thinking on this    | O |
|      |     | ard | It might be useful  |   | one and will bring  | P |
|      |     |     | to add a            |   | it up for SG-1      | E |
|      |     |     | requirement that    |   | resolution          | N |
|      |     |     | UM157 shall not be  |   | (]{.mark}           | ] |
|      |     |     | concatenated with   |   |                     | { |
|      |     |     | any other message   |   |                     | . |
|      |     |     | element.            |   |                     | m |
|      |     |     |                     |   |                     | a |
|      |     |     | **SUGGESTED CHANGE  |   |                     | r |
|      |     |     | TO DOCUMENT:**      |   |                     | k |
|      |     |     |                     |   |                     | } |
+------+-----+-----+---------------------+---+---------------------+---+