Section 3. Data Recording and
Retention
11-3-1. DATA
RECORDING
a. Type or write the date on
the console printout at the start of each operational
day or as specified in a facility directive. The
facility directive must require the time that the date
must be entered daily.
NOTE-
The operational day for a 24-hour facility begins at
0000 local time. The operational day at a part time
facility begins with the first operational shift in
each calendar day.
b. As a minimum, record on
the console failure/error messages regarding Data
Acquisition Subsystem (DAS), Data Entry and Display
Subsystem (DEDS), and Interfacility (IF).
NOTE-
When a failure is known to exist, that particular
failure printout may be inhibited to minimize its
impact on the system.
c. Facilities
having continuous data recording capabilities must
extract and record on tape or disc:
1. Tracking messages, target
reports, and sector time.
2. Automatic functions and
keyboard input data.
3. Interfacility messages.
4. MSAW and CA warning
message data. Other data available in the extraction
routine may be extracted.
d. Air traffic facilities
using a teletype emulator (TTYE) in lieu of a console
printout (TTY) must store and retain data in
accordance with paras 11-3-1, Data Recording, and
11-3-2, Data Retention. However, the data may
be retained on a disc or hard drive as specified in a
facility directive.
11-3-2. DATA
RETENTION
a. Write on each data
extraction tape/disc:
1. The tape/disc drive
number.
2. The date.
3. The times (UTC) the
extraction started and ended.
4. The items listed in
subpara 11-3-1c not extracted.
5. The data extracted in
addition to that required by subpara 11-3-1c.
6. The initials of the
person changing the recording.
b. Retain
data extraction recordings for 45 days except:
1. En route facility
utilizing system analysis recording tapes as their
radar retention media must retain radar data for 15
days.
2. Accidents: Retain data
extraction recordings in accordance with FAAO 8020.11,
Aircraft Accident and Incident Notification,
Investigation, and Reporting.
3. Incidents: Retain data
extraction recordings in accordance with FAAO 8020.11,
and/or FAAO 7210.56, Air Traffic Quality Assurance.
4. Accidents: Retain TTYE
stored captured files (or TTY if TTYE captured files
are unavailable) for 30 days unless they are related
to an accident or incident as identified in FAAO
8020.11 or FAAO 7210.56.
NOTE-
A facility using a console typewriter printout take-up
device may retain the printout on the spool for
15 days after the last date on the spool. Retention of
the daily printouts relating to accidents/incidents
must be in accordance with subpara b.
5. Tarmac Delay: When a
facility is notified that an aircraft has or may have exceeded the
“Three/FourHour Tarmac Rule,” retain data recordings
relevant to the event for 1 year.
c. If a request is received
to retain data information following an accident or
incident, the printout of the relative data will
suffice. The tape/disc may then be returned to service
through the normal established rotational program. The
printout data are considered a permanent record and
must be retained in accordance with aircraft
accident/incident retention requirements. Reduction of
the extracted data to hard-copy format will be made at
the earliest time convenient to the facility involved
without derogation of the ATC function and without
prematurely taking the computer out of service. Do not
make these data and printouts a part of the
accident/incident package.
d. If a request is received
to retain a specific data recording and the data are
available and contained on tape, the tape must be
retained in its entirety. If the data are contained on
disc, the facility may transfer all pertinent data to
magnetic tape and label the tape a Duplicate
Original. After successful transfer, the disc pack
may be returned to service through the normal
rotational cycle. However, if a specific request is
received to retain the disc, the disc pack must be
retained in its entirety.
e. Treat data extraction
recordings and console typewriter printouts pertaining
to hijack aircraft the same as voice recorder tapes.
REFERENCE-
Para 3-4-4, Handling Recorder Tapes or DATs.
11-3-3. FAULT LOG
a. Whenever the computer
fails during normal operations, all pertinent data
must be recorded on the Fault Log. However, if the
computer failure is the first of a particular nature
and an operational requirement exists to resume normal
computer operation as soon as possible, a Fault Log
need not be recorded.
b. When you anticipate the
need for assistance from the National Field Support
Group (NFSG), record the entire contents of memory
before restarting the operational program.
c. Retain the Fault Log and
the memory dump until the cause of the fault has been
determined or NFSG requests them. |
