APDL is designed to be used to manage your legality compliance for a range of operations conducted under FAA Part 121 and 91K.
The app specifically tracks compliance with the following subparts of FAR 117.
- § 117.11 Flight time limitation.
- § 117.13 Flight duty period: Unaugmented operations.
- § 117.15 Flight duty period: Split duty.
- § 117.17 Flight duty period: Augmented flightcrew.
- § 117.19 Flight duty period extensions.
- § 117.21 Reserve status.
- § 117.23 Cumulative limitations.
- § 117.25 Rest period.
- § 117.27 Consecutive nighttime operations.
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Legality Status is based on all Leg activities entered for a Duty period on the Trip or Logpage Views, or imported via the Schedule Importer.
Legality Status is displayed throughout the app using the following lozenges.
| Status | Description |
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| Duty period meets all 117 requirements * | |
| Current Duty Period has Legality Issues | |
| Future or Past Duty period has/had legality Issues |
The Legality Status found on the main menu indicates your status for the current or next duty period.
When navigating a sequence in Trip View, the Legality status for each duty period is shown on the first row.
In this example day one is legal. Day two has two issues that need attention. Tapping on the Legality Status on any screen will open the Legality View.
Duty Period and Legs
Each Duty Period is represented with a Duty On and Duty Off time.
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All Flightcrew member responsibilities and assignments assigned by the certificate holder must be logged as a duty period to accurately analyze your legality and provide a Legality Status. |
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APDL Contains a number of pre-defined Payroll types to categorize your duty. Payroll types in APDL identify the tasks that a flightcrew member performs as required by the certificate holder, including but not limited to flight duty period, flight duty, pre- and post-flight duties, administrative work, training, deadhead transportation, aircraft positioning on the ground, aircraft loading, and aircraft servicing.
The basic payroll types that you will use most often with Legality are :
- Block - Scheduled or Actual flight segment
- Deadhead - Flightcrew member is a passenger or non-operating flightcrew member, by any mode of transportation, as required by a certificate holder, excluding transportation to or from a suitable accommodation.
- Canceled - Scheduled flight segment has been canceled.
- Short-call Reserve - Flightcrew member is assigned to a reserve availability period.
** See the Payroll Section for a complete list of Payroll Types and definitions
offers a Legality Report to show more detailed results of how APDL is determining its legality computations behind the scenes. You can view this report by tapping the report button on the toolbar of the Legality Status, What If, or Trip View pages.
The Legality Report can be shared in various ways by tapping the sharing button while viewing the report. This can be used to send the report to a company representative or to yourself for future analysis.
The Legality Report consists of multiple pages and is broken down into several sections.
The Legality Report is split into two parts. Scheduled/Actual on the left and Projected/Actual in a box on the right.
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The Legality Report starts off with a Header section.
In the header section you will find the Trip Number and Date, rest prior to the duty period, the beginning, end, and duration of Duty, and the beginning, end, and duration of the Flight Duty Period.
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The Flights section immediately follows the header section and displays times associated with each flight for the applicable duty period in a format similar to a typical printed trip sheet.
Starting on the left "Scheduled/Actual" side, you will see the flight numbers, departure and destination, and then a "S/A" column. This column designates whether the displayed times for that flight are Scheduled or Actual. If the OOOI times for the flight have not yet been entered, Scheduled times as entered on the Trip View are displayed in the Out, In, Block (Blk), and Ground Time (GT) columns as indicated by an "S" in this column. If at least one OOOI time for that flight has been entered, Actual times are displayed in the Out, In, Block (Blk), and Ground Time (GT) columns where available and scheduled times are displayed in the remaining columns. This is indicated by an "A" in the "S/A" column.
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APDL uses a "Projected Mode" to display projected times for entries when a delay has occurred or is entered on the What If page. Projected Mode is described here on the Legality Report where the most details are visible in the same place, however, the Projected Mode logic works the same across all supported views where projected values are displayed.
On the right "Projected/Actual" side, things get a little more interesting. The flight numbers and departure and destination columns are not duplicated to save space. The first column is the "P/A" column which designates whether the displayed times for that flight are Projected or Actual. If the flight has already been closed out, an "A" will be displayed in this column to indicate Actual times are being displayed. The current leg (or upcoming leg if between legs) is indicated with a "P" for Projected times.
If the current time is after the current leg scheduled Out time and you have not entered an Out time, APDL will consider that leg to be delayed and will use the current time as the Projected Out time. This will cause the Projected In time and Ground Time to be adjusted accordingly.
In an effort to keep APDL's projections realistic, a Minimum Ground Turn Time of 25 minutes is used by default (20 minutes shown below). You can designate a custom Minimum Ground Turn Time in Settings > Airline if 25 minutes is not realistic for your operation. If the delay would result in your ground turn time being less than the minimum ground turn time, APDL will project any remaining flights to be on the ground for at least the Minimum Turn Time as necessary. Otherwise, the ground time will be shortened by the applicable time and scheduled times will be used for remaining flights if possible.
Projections can be manually entered by using the What If page. The Legality Report will display "What If" to the right of any legs that have been manually adjusted by the What If page.
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The Summary section displays flight time and FDP end time with applicable time zone for both the Scheduled/Actual and Projected/Forecasted sections of the report for comparison.
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The alerts section displays any actual or projected FAR alerts generated by the data in the report. This can be used in conjuction with the What If feature to identify which limits will be exceeded if certain delays are experienced.
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The graphs section displays bar graphs to show a graphical representation of your prior and upcoming rest period, Flight Duty Period, and Flight Time.
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The very bottom of each page of the Legality Report displays the date and time the report was generated.
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The Legality Report is only accurate as of that time and given the specific conditions that were calculated at that time. |
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Page 2 of the Legality Report displays Table A and B to FAR 117 (or C, if appropriate). APDL highlights the appropriate rows and columns based on your selected duty period for quick reference. A summary of additional details is included at the bottom of this page as well.
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The remainder of the Legality report is the Cumulative Limits Detail Report on pages 3 through 8. This section of the report displays every entry that is included in each calculation that yields your cumulative limits totals. This greatly increases the transparency of how APDL is generating your cumulative limits totals.
Page 3 displays an overview of all 4 cumulative limits with a small graph, actual and remaining hour values as of the time the report was generated, and the exact begin and end date and time of the lookback range used to generate those results. As described in the Cumulative Limits section of the Legality Status page, these values are calculated based on the lookback range of most restrictive segment during a duty period and will not likely change throughout the day.
Pages 4 through 8 of the report display the same information for each one of the cumulative limits respectively.
The example above is of the 100/672 page. All remaining pages follow the same format.
All flights in the applicable duty period are listed along with their Out and In times and the total flight time counted toward the 100/672 limit as of that flight. The most restrictive leg is indicated in the column to the right. The lookback range used is based on that leg as indicated in the note directly below.
The Lookback period section of the page clearly indicates the beginning and end of the lookback period followed by all Flight Duty Periods included in that period. The flight time total from each trip is displayed in the "Flight Time" column and the "Used Flight Time" column indicates how much of that flight time was used when calculating the cumulative limit. Usually this will be the flight time of the entire trip unless it was the first or last trip of the lookback period. The Notes column indicates "Normal" if the entire duration of the trip was included in the calculation and "Split" if the trip was split somewhere and only a portion of the trip was included in the lookback period.
Payroll types are the primary way of identifying the overall regulation operation type for each duty period.
Regulation
Each leg also contains a Regulation section. By default, Regulation for each leg is Automatic.
With Automatic selected, the regulation type used to compute your duty period legality is based on the most restrictive leg type.
For Part 117, the following Regulations are selected in order
- Reserve and Augmented Crew = Part 117 Augmented Reserve
- Any Split Duty = Part 117 Split Duty
- Reserve = Part 117 Reserve
- Augmented Crew = Part 117 Augmented
- Unaugmented Crew = Part 117 Unaugmented
- Part 91
- Unaugmented Crew = Part 117 Unaugmented
- Augmented Crew = Part 117 Augmented
- Reserve = Part 117 Reserve
- Any Split Duty = Part 117 Split Duty
- If APDL can not determine the Operation type it will default to Part 117 Unaugmented
For most operations you define under payroll, the automatic Regulation Type does not need to be changed.
Special Cases
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If you are importing a trip the default import payroll option is "Block". If you are on reserve you have two choices, you can set the first leg of your trip to Short-Call Reserve or you can Override the operation Type
Trips imported via the the schedule importer will default to
Part 117 Unaugmented
You can configure the trip for reserve in one of two ways. For the first leg in the duty period either :
Set the Payroll category to reserve (short call, long call, or airport standby) - this is the preferred method,
Select Part 117 Reserve under Regulation Operated Under
In each case the legality engine will select the appropriate reserve type
Split Duty
Each airline codes split duty pairings a little differently. Schedule importer looks for a leg with identical city-pairs. When imported the time identified in the Split Duty Rest does not include ground time to or from rest facility.
If you need to add a split duty rest. Create a leg with identical city pairs. Then set payroll to Rest Opportunity.
Part 117 Split Duty will not be selected if the rest opportunity is less than 3 hours.
Consecutive Nighttime operations
Legs with a rest opportunity of at least 2 hours are used in computing consecutive night operations limits. Use the same identical city-pairs and Rest Opportunity payroll type.
Augmented Crew
For all operations APDL assumes a two person crew complement.
You have two options for enabling augmented rules.
When selecting other crew A or other crew B, APDL will increment the crew count by one for each position. This is the preferred method.
An alternate method is to select the appropriate Augmented operation type under Regulation Operated Under on the Leg Editor view. Selecting this option will assume the crew complement is three.
In all cases Class 1 rest facilities are assumed.
When viewing the Legality status screen you can override both crew complement and rest facilities under the assumptions section.
Assumptions
An assumptions section was added to the top of the Legality view to accommodate information that can not be fully gleaned from the logbook entries.
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