TM 1-1510-225-10 3D-25 NOTE When  an  altitude  restriction  is  shown  on the    APT    4    page,    the    abbreviation    BEL means at and below the specified altitude.   The abbreviation ABV means at and above the specified altitude. KORL APR  121.10 REF: KMCO 311^o - 60^o BEL 5500FT APT+4 Figure 3D-24.  APT 4 Page (BEL) (5)   In  a  few  cases,  APR,  DEP,  CL  B,  CL  C, TRSA, CTA, and TMA frequencies are sectorized such that  the  restriction  cannot  be  displayed  on  a  single page.    When  this    occurs,   TEXT   OF   FREQUENCY USAGE  NOT  DISPLAYED  is  displayed  on  the  APT  4 page.    There  are  some  airports  in  the  database  for which  no  communications  information  is  available.    In this    case,    COMM    FREQ    DATA    NOT    AVAIL    is displayed. e.   Airport 5 Page.    The  APT  5  page is used to store   and   display   user   entered   remarks.      These remarks  might  include  information  on  lodging,  dining, airport services, etc.  Up to 100 airports may contain these remarks.  A remark may contain up to 3 lines of 11  characters  each.    Letters,  numbers, hyphens, and spaces may be used in the remark. 1.   Select   the   APT   5   page   for   the   desired airport. 2.   Press the right CRSR button. 3.   Rotate the right outer knob until the cursor fills the entire third line of the screen. 4.   Use  the  right  inner  knob  to  select  the first character of the remark. 5.   Turn    the    right    outer    knob    one    step clockwise  to  move  the  flashing  portion  of the  cursor  to  the  second  cursor  position and use the right inner knob to select the second character. 6.   Use   the   right   outer   and   inner   knobs   to select   the   rest   of   the   first   line   of   the remark. 7.   Press the  ENT button to approve the first line.    The  cursor  will  move  to  the  second line. 8.   Use  the  above  procedure  to  select  the characters of the second and third lines of the   remark.      Press   the   ENT   button   to individually    approve    each    line    of    the remark. 9.   Press  the  right   CRSR  button  to  turn  the right cursor function off. f.    Airport   6   Page.    The  APT  6  page  shows aeronautical services available for the selected airport.   These   services   include   customs,   fuel,   and   oxygen availability as well as an indicator of a landing fee. (1)   Customs   Information.      Refer   to   Table 3D-9 for customs displays and their explanations. Table 3D-9.  Customs Information DISPLAY EXPLANATION Blank Blank line indicates that customs information is not available in the database. CUSTMS- ADCS Customs are available for private   aircraft   arriving   to   the U.S.   from   Canada   or   Mexico.   Advance    notice    of    arrival    to customs officers is to be included in the flight plan transmitted   to   a   FAA   facility.   This  code  is  used  when  this is the  only  type  customs  facility available. CUSTMS-PR Customs  facilities  are  available but    require    prior    request    or permission for use. CUSTMS- REST Customs  facilities  are  available on    a    restricted    basis,    check with  airport  before  planning  to use. CUSTOMS- FULL Customs  facilities  are  available without restriction. NO CUSTOMS No customs facilities are available.