ATA 27
LEGEND
Procedures Required
(O) – An operational procedure
(M) or (M#) – A maintenance procedure
(O)(M) or (O)(M#) – Both operational and
maintenance procedures
Repair Interval Categories
Category A
Items in this category shall be repaired within the time interval
specified in the "Remarks or Exceptions" column of the air
operator's approved MEL. Whenever the proviso in the "Remarks
or Exceptions" column of the MMEL states cycles or flight time,
the time interval begins with the next flight. Whenever the time
interval is listed as flight days, the time interval begins on the flight
day following the day of discovery.
Time Limited Dispatch - Some MMEL's for aircraft that are
equipped with FADEC engines have relief that is subject to time
limited dispatch expressed as a specific number of engine hours,
and will start in accordance with the times established by the
engine manufacturer or as indicated in the remarks column of
the MMEL. Time limited relief cannot be extended.
Category B
Items in this category shall be repaired within 3 consecutive
calendar days excluding the day of discovery.
Category C
Items in this category shall be repaired within 10 consecutive
calendar days, excluding the day of discovery.
Category D
Items in this category shall be repaired within 120 consecutive
calendar days, excluding the day of discovery. To be considered
for placement in Category D, the item must be of an optional
nature, or excess equipment which an air operator may, at his/her
discretion, deactivate, remove from or install on an aircraft.
To be approved for Category D, the item must meet the
following criteria:
1. the absence of the item does not adversely affect crew
member's workload;
2. the crew members do not rely on the function of that item on
a routine or continuous basis; and,
3. the crew members' training, subsequent habit patterns and
procedures do not rely on the use of that item.
Category D relief will generally not be approved for equipment
which is considered to increase the level of safety, even if that
equipment is of an optional nature.
ITEM: 27-00-1 CONTROL SURFACE POSITION INDICATORS
ATA 34
LEGEND
Procedures Required
(O) – An operational procedure
(M) or (M#) – A maintenance procedure
(O)(M) or (O)(M#) – Both operational and
maintenance procedures
Repair Interval Categories
Category A
Items in this category shall be repaired within the time interval
specified in the "Remarks or Exceptions" column of the air
operator's approved MEL. Whenever the proviso in the "Remarks
or Exceptions" column of the MMEL states cycles or flight time,
the time interval begins with the next flight. Whenever the time
interval is listed as flight days, the time interval begins on the flight
day following the day of discovery.
Time Limited Dispatch - Some MMEL's for aircraft that are
equipped with FADEC engines have relief that is subject to time
limited dispatch expressed as a specific number of engine hours,
and will start in accordance with the times established by the
engine manufacturer or as indicated in the remarks column of
the MMEL. Time limited relief cannot be extended.
Category B
Items in this category shall be repaired within 3 consecutive
calendar days excluding the day of discovery.
Category C
Items in this category shall be repaired within 10 consecutive
calendar days, excluding the day of discovery.
Category D
Items in this category shall be repaired within 120 consecutive
calendar days, excluding the day of discovery. To be considered
for placement in Category D, the item must be of an optional
nature, or excess equipment which an air operator may, at his/her
discretion, deactivate, remove from or install on an aircraft.
To be approved for Category D, the item must meet the
following criteria:
1. the absence of the item does not adversely affect crew
member's workload;
2. the crew members do not rely on the function of that item on
a routine or continuous basis; and,
3. the crew members' training, subsequent habit patterns and
procedures do not rely on the use of that item.
Category D relief will generally not be approved for equipment
which is considered to increase the level of safety, even if that
equipment is of an optional nature.
ITEM: 34-10-1 ALTITUDE ALERTING SYSTEM
