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Duty Beacon · Test Version · Hook Creations

Runs entirely in your browser. No data you enter is collected, stored, or transmitted to any server.
Reference tool only. All outputs must be verified against official CAASL / SLCAP 4210 documents before operational use.
Not certified or endorsed by the Civil Aviation Authority of Sri Lanka (CAASL) or any airline operator.
All code and design are the intellectual property of Pavishanth Jayaseelan / Hook Creations. Redistribution is prohibited.

By clicking accept, you agree to use this tool as a planning reference only and acknowledge the above conditions.

Duty Beacon

A Guiding Light For Crew Duty Compliance

Flight duty planner

Build a duty day sector by sector. Enter departure time, flight time, and ground stops. The planner calculates your full FDP and checks all SLCAP 4210 limits automatically.

Report time (local)

Pre-flight duties (hrs)

Crew type

Post-flight duties (hrs)

Not acclimatised — preceding rest (hrs)

Cabin crew?

Augmented crew (bunk relief)?

Sectors & ground stops

FDP lookup

Crew type / table

Report time (local)

Number of sectors

Preceding rest (hrs) — Table B

Cabin crew (+1h)

Actual report (if delayed)

FDP extension calculator

Base FDP from table (hrs)

FDP report time

Extension method

Crew type

Rest period calculator

Preceding FDP / duty (hrs)

Duty finished at

Location

Crew type

Preceding FDP was extended?

Standby calculator

Standby start

Call-out time

Was crew called out?

Sectors after callout

Acclimatisation

Preceding rest (if not acclimatised)

Night standby (home/accommodation 2200–0800, ≤2h notice)?

Check type

Check

Crew type

Rolling duty hours

Last 7 days (hrs)

Last 14 days (hrs)

Last 28 days (hrs)

Next FDP duration (hrs)

Unforeseen delay buffer?

Full duty day scenario

Complete scenario check — FDP, extensions, rest, weekly duty, flying hours, and days off in one pass.

Report time

Crew type

Planned sectors

Total block time (hrs)

Ground stops total (hrs)

Post-flight duties (hrs)

Augmented bunk relief?

In-flight bunk rest (hrs)

Preceding rest (hrs)

Duty hrs this week (excl. today)

Flying hrs last 28 days (excl. today)

Consecutive duty days (incl. today)

Table A — 2+ crew, acclimatised (hrs)

Report time	1	2	3	4	5	6	7	8+
0600–0759	13	12.25	11.5	10.75	10	9.5	9	9
0800–1259	14	13.25	12.5	11.75	11	10.5	10	9.5
1300–1759	13	12.25	11.5	10.75	10	9.5	9	9
1800–2159	12	11.25	10.5	9.75	9	9	9	9
2200–0559	11	10.25	9.5	9	9	9	9	9

Table B — 2+ crew, not acclimatised (hrs)

Preceding rest	1	2	3	4	5	6	7+
≤18 or >30 hrs	13	12.25	11.5	10.75	10	9.75	9
18–30 hrs	11.5	11	10.5	9.75	9	9	9

Table C — single pilot (hrs)

Report time	≤4 sec	5	6	7	8+
0600–0759	10	9.25	8.5	8	8
0800–1259	11	10.25	9.5	8.75	8
1300–1759	10	9.25	8.5	8	8
1800–2159	9	8.25	8	8	8
2200–0559	8	8	8	8	8

Cumulative limits

Window	FC duty	CC duty	Flying (FC)
7 days	55h (60)	60h (65)	—
14 days	95h	105h	—
28 days	190h	210h	100h
12 months	—	—	1000h

( ) = unforeseen delay buffer. FC = flight crew, CC = cabin crew.

Data & Privacy

This tool runs entirely in your browser. No data you enter is collected, stored, or transmitted anywhere. Everything is cleared when you close or refresh the page.

Planned Update

A future version of this tool will introduce user accounts and cloud storage for saving schedules and roster data.
Before that update goes live, a full data privacy notice will be published and users will be asked to review and accept it.
No backend features will be activated without prior notice.

Regulatory Disclaimer

Important — Please Read

This tool is a reference and planning aid only. It is not a substitute for official CAASL publications or SLCAP 4210 regulatory documents.
All calculations must be independently verified by a qualified crew scheduling professional before operational use.
This tool is not certified or endorsed by the Civil Aviation Authority of Sri Lanka (CAASL) or any airline operator.
The developer accepts no liability for operational decisions made solely on the basis of this tool's output.

Reporting an Issue

Found a bug, a regulation mismatch, or a security concern? Please report it responsibly — do not share sensitive issues publicly.

For calculation errors or feature requests — use the Feedback Form or DM on LinkedIn.
For security vulnerabilities — contact the developer directly via LinkedIn or email before disclosing publicly.
Response within 72 hours for all reports.

Intellectual Property

All code, design, and logic in this tool are the intellectual property of Pavishanth Jayaseelan / Hook Creations.
Unauthorized reproduction, redistribution, or commercial use without written permission is strictly prohibited.
This project is open for review on GitHub but is not open-source licensed for reuse.

About This Tool

Developer

Pavishanth Jayaseelan

Hook Creations

Regulation

SLCAP 4210

CAASL — Sri Lanka

Version

v0.1 Beta

Test release

Last Updated

June 2025

Hook Creations