> ## Documentation Index > Fetch the complete documentation index at: https://docs.planeconnection.com/llms.txt > Use this file to discover all available pages before exploring further. # Crew Scheduling > Reference for bid statuses, time-off types, duty time rules, schedule statuses, assignment types, and scheduling constraints. This reference covers all crew scheduling data types, statuses, and regulatory constraints used across the Operations module. ## Schedule Statuses Schedule entries use the following statuses to indicate a crew member's state for a given day: | Status | API Value | Description | Blocks Flight Assignment | | -------- | ---------- | ----------------------------------------------------------- | :----------------------: | | On Duty | `on_duty` | Crew member is on duty and available for flight operations. | No | | Off Duty | `off_duty` | Crew member is off duty for the day. | Yes | | Airline | `airline` | Crew member is traveling on airline positioning. | Yes | | On Call | `on_call` | Crew member is on standby, available if needed. | No | | Vacation | `vacation` | Crew member is on approved vacation leave. | Yes | | Training | `training` | Crew member is in a scheduled training event. | Yes | ## Availability Types Crew availability entries record broader availability windows: | Type | API Value | Purpose | | ----------- | ------------- | -------------------------------------------------- | | Available | `available` | Crew member is available for trip assignment. | | Unavailable | `unavailable` | Crew member is not available (personal, medical). | | Vacation | `vacation` | Planned vacation leave. | | Training | `training` | Scheduled training or simulator session. | | Reserve | `reserve` | On reserve -- available on short notice if needed. | ## Duty Types Each duty period is classified by type: | Type | API Value | Description | | ------- | --------- | ----------------------------------------------- | | Flight | `flight` | Time spent as required flight crew. | | Ground | `ground` | Ground duty (dispatch, maintenance, briefings). | | Standby | `standby` | On-airport standby awaiting assignment. | | Reserve | `reserve` | Off-airport reserve (on-call). | ## Flight Types Flight duty records specify the regulatory basis: | Type | API Value | Regulatory Basis | | ---------- | ------------ | -------------------------- | | Part 91 | `part_91` | 14 CFR Part 91 operations | | Part 135 | `part_135` | 14 CFR Part 135 operations | | Part 121 | `part_121` | 14 CFR Part 121 operations | | Training | `training` | Training flights | | Check Ride | `check_ride` | Proficiency or type checks | ## Duty Time Limits PlaneConnection monitors the following regulatory flight time and duty limits. These values reflect the standard 14 CFR Part 135 Subpart F limits. Your operator's OpSpecs may impose stricter limits. ### 14 CFR Part 135 Subpart F (Flight Time Limitations) | Rule | Reference | Limit | | ---------------------------- | ----------------- | -------------------------------------------------------------- | | Daily flight time (1 pilot) | 14 CFR 135.267(b) | 8 hours in any 24 consecutive hours | | Daily flight time (2 pilots) | 14 CFR 135.267(b) | 10 hours in any 24 consecutive hours | | Weekly flight time | 14 CFR 135.267(c) | 34 hours in any 7 consecutive calendar days | | Minimum rest before duty | 14 CFR 135.267(d) | 10 consecutive hours of rest before beginning duty | | Rest after exceeding 8 hours | 14 CFR 135.267(d) | 13 consecutive hours of rest after exceeding 8 hours of flight | ### 14 CFR Part 117 (Additional Limits) | Rule | Reference | Limit | | ------------------- | --------- | --------------------------------------- | | 28-day flight time | Part 117 | 120 hours in any 28 consecutive days | | 365-day flight time | Part 117 | 1,000 hours in any 365 consecutive days | ### Compliance Status Indicators The system displays compliance status using the following thresholds: | Indicator | Condition | Action Required | | --------- | ------------------------------------------- | -------------------------------- | | Green | Under 80% of any applicable limit | No action needed | | Yellow | Between 80% and 95% of any applicable limit | Monitor closely before assigning | | Red | Above 95% of any applicable limit | Do not assign additional duty | ## Currency Items Six currency items are tracked for each crew member: | Item | API Value | Regulatory Basis | Warning Window | | ----------- | ------------- | ---------------------------------------------- | :------------: | | Medical | `medical` | 14 CFR Part 135 Subpart E | 60 days | | BFR | `bfr` | 14 CFR 61.56 (Biennial Flight Review) | 60 days | | IPC | `ipc` | 14 CFR 61.57(d) (Instrument Proficiency Check) | 60 days | | Type Rating | `type_rating` | 14 CFR Part 61 Subpart H | 60 days | | Recurrent | `recurrent` | 14 CFR Part 135 Subpart G | 60 days | Currency status values: | Status | API Value | Meaning | | ------------- | --------------- | ------------------------------------- | | Current | `current` | Expiration is more than 60 days away. | | Expiring Soon | `expiring_soon` | Expiration is within 60 days. | | Expired | `expired` | Expiration date has passed. | Expired currency items block trip assignment at the Confirmed status. A crew member showing any expired item cannot be added to a trip leg that requires the expired qualification. ## Schedule Assignment Types Administrators can create custom assignment types that appear on the crew schedule grid. Each type has configurable properties: | Property | Type | Description | | --------------- | ------- | ----------------------------------------------------------- | | Name | String | Display name (e.g., "Simulator Training", "Office Day"). | | Color | String | Hex color code for the schedule grid. | | Flight Conflict | Boolean | If true, blocks flight trip assignment on overlapping days. | | Terminates RON | Boolean | If true, ends a remain-overnight sequence. | | Day of Work | Boolean | If true, counts as a working day for duty calculations. | | Sort Order | Number | Display order in selection lists. | ## Crew Roles | Role | API Value | Flight Time Tracked | Duty Time Tracked | | ---------------- | ------------------ | :-----------------: | :---------------: | | PIC | `pic` | Yes | Yes | | SIC | `sic` | Yes | Yes | | Flight Attendant | `flight_attendant` | No | Yes | | Dispatcher | `dispatcher` | No | Yes | | Mechanic | `mechanic` | No | Yes | | Relief Pilot | `relief` | Yes | Yes | ## Fatigue Risk (K-Score) The fatigue risk score is computed per AC 120-103A (Fatigue Risk Management Systems). See [How to Use Crew Intelligence](/en/how-to/ops/manage-crew-intelligence) for interpretation guidance. | K-Score Level | Range | Meaning | | ------------- | -------- | ---------------------------------------- | | Low | 0 -- 30 | Normal fatigue levels. | | Moderate | 31 -- 60 | Elevated -- monitor before assignment. | | High | 61 -- 80 | High risk -- review before proceeding. | | Critical | 81+ | Do not assign without rest intervention. |