Private clients planning a 2027 charter should build around the framework already in force, not a hoped-for rewrite. That means a CASR Part 135 Air Operator Certificate for any charter flight, CASR 139 Volume III certification or registration for the water aerodrome on each end of the route, CASR 91 over-water safety equipment once a leg clears specific distance thresholds, the water aerodrome regulation enacted 22 August 2025 with its shipping-law and Vessel Traffic Service coordination duties, and the 2026 refresh to safety management system and aircraft registration rules. As of 2026, the more realistic expectation for 2027 is implementation guidance tightening how these rules are applied, not a new headline law replacing them.
What Actually Changes Between Now and 2027?
Indonesia’s seaplane rulebook did not appear overnight, and it is not likely to be rewritten overnight either. The Directorate General of Civil Aviation (DGCA), under the Ministry of Transportation, built its water aerodrome standards on FAA Advisory Circular 150/5395-1 and published them domestically as the Manual of Standard CASR Part 139 Volume III, Seaplane Bases (Waterbases). Keputusan Direktur Jenderal Perhubungan Udara Nomor KP 206 Tahun 2021 sets the minimum technical and operational specifications for water aerodromes serving seaplanes up to 30 seats. A water aerodrome is treated as an airport in regulatory terms: it must be certified or registered under CASR sub-regulation 139.101, and the shoreline facilities that support it fall under the same certification chain.
For a client booking through a coordination desk such as Juara Holding Group, an independent charter arrangement service established in 2015, this baseline is the reference point for evaluating any 2027 itinerary. Juara Holding Group does not operate aircraft; every private charter arrangement it coordinates through private charter arrangements is flown by a licensed Indonesian Air Operator Certificate holder under DGCA oversight, and the desk’s role is matching the request to a compliant operator and a certified or registered site, not issuing the certificate itself.
The most recent structural addition is a ministerial regulation enacted 22 August 2025 and recorded in State Gazette 2025 No. 620. It formally defines “aerodrome water” as the water area used for seaplane arrivals, departures and surface movement, requires seaplane operations on water to follow shipping-sector law in addition to aviation law, and obliges the organiser of each water aerodrome to coordinate with coastal radio stations and Vessel Traffic Service (VTS) units. That is a meaningful operational layer, not a cosmetic update: it means a seaplane taxiing to a resort jetty is now explicitly answerable to maritime traffic coordination, not aviation rules alone. Clients planning multi-stop or island-hopping charters into 2027 should expect this dual-jurisdiction coordination to be standard practice rather than a special request.
| Rule | What it means for a private client | What to verify before booking |
|---|---|---|
| CASR Part 135 AOC | Only an AOC holder may fly the charter; the aircraft, crew and route must sit inside that certificate’s scope | Ask the desk to confirm the operator’s AOC number and that the specific route/aircraft combination is covered |
| CASR 139 Vol III / KP 206/2021 | Each landing site must be a certified or registered water aerodrome, not an informal beach or bay | Confirm the departure and arrival sites appear on the operator’s approved site list, especially for a new resort stop |
| 22 Aug 2025 water aerodrome regulation | Seaplane movement on water now follows shipping law too, with coordination to coastal radio/VTS units | Ask whether the site organiser has an active VTS/coastal radio coordination arrangement for the planned window |
| CASR 91 over-water equipment | Life preservers or flotation are required beyond 50 NM from shore; survival equipment triggers beyond 30 minutes or 100 NM | For longer inter-island legs, confirm the aircraft carries the equipment class that matches the actual route distance |
| 2026 SMS / registration refresh | Operators are updating safety management systems and registration documentation under new guidance | Ask when the operator’s SMS documentation and aircraft registration were last reviewed under the 2026 rules |
Why Does AOC Licensing Stay the Gatekeeping Rule?
Commercial charter flying in Indonesia runs through one gate: a valid CASR Part 135 Air Operator Certificate. That single requirement carries more weight for 2027 planning than any single new regulation might, because it is the rule that determines who is legally allowed to fly a client at all. Empty-leg, or positioning, flights fall under the same gate. They may only be marketed by Part 135 AOC holders, sold as the whole aircraft on a predetermined route and time rather than as individual seats, and they remain subject to the same safety, crew and airworthiness standards as a standard charter, with documentation and transparency expected under DGCA oversight. A private client offered an unusually cheap “seat” on a seaplane leg should treat that as a compliance flag, not a bargain, since selling individual tickets on a charter aircraft is prohibited.
Cabotage law adds a second layer that will not loosen by 2027. Aviation Law No. 1 of 2009 prohibits foreign carriers from transporting passengers between two points inside Indonesia, and the Transportation Ministry has separately reiterated that booking a domestic leg indirectly through a foreign-based online travel platform does not get around this restriction. In practical terms, a domestic seaplane charter leg, whether it starts in Bali, Labuan Bajo, Raja Ampat or Lombok, must be flown by an Indonesian AOC holder regardless of which website or app the client used to arrange it. Clients working across borders for 2027 group or corporate trips should assume this rule stays fixed and plan booking channels accordingly.
How Should Corporate and Resort Programmes Plan for 2026-2027 Refreshes?
Two rule sets were updated in 2026: aviation safety management system requirements and aircraft registration procedures. Both are described in current guidance as refreshed rather than replaced, with implementation guidance expected to shape how seaplane and amphibious operators apply them through 2027. For a corporate or resort programme booking recurring charters, this matters less as a legal technicality and more as a due-diligence checkpoint: an operator’s SMS documentation and registration paperwork should reflect the current cycle, not a version predating the 2026 update.
This is also where water aerodrome physical specifications become relevant to route planning rather than pure paperwork. DGCA’s base standards call for a preferred water depth of 1.8 metres, with a minimum of 1 metre workable for single-engine aircraft. The water operating area’s required length increases by 7 percent for every 300 metres of elevation above sea level, which matters for any site near highland lakes or elevated coastal terrain. A taxi channel should run at least 45 metres wide with direct access to onshore facilities, oriented into the prevailing wind or current where geography allows it. DGCA’s published base standards currently record two registered seaplane bases in Indonesia, both serving Cessna 208A Caravan and DHC-6 Twin Otter aircraft in nine-seat configurations; research separately cites Bawah Island in the Anambas as a certified luxury-island water aerodrome, with Banyuwangi positioned as a regional hub linking land and water operations to a Bali seaplane network. None of that expands the legal seat limit set by KP 206/2021, which caps water aerodrome operations at 30 seats.
Season also belongs in a 2027 plan, even though it is climate data rather than aviation law. BMKG (the national meteorology, climatology and geophysics agency) describes Indonesia’s rainy season as running roughly October to March and the dry season April to November, shaped by monsoon wind shifts between Australia and Asia, and publishes seasonal outlooks and monthly rainfall analysis that operators use for route and weather-window planning. A corporate programme locking in 2027 dates months ahead should treat BMKG’s seasonal pattern as one more variable the desk checks against water aerodrome conditions, alongside the certification and coordination requirements above.
| Document to request from the desk | Why it matters |
|---|---|
| Operator’s current CASR Part 135 AOC | Confirms the aircraft and crew are legally permitted to fly the charter |
| Insurance disclosure for the specific flight | Shows what coverage applies to passengers and the aircraft for that route |
| Water aerodrome certification/registration for each site | Confirms departure and arrival points meet CASR 139 Vol III standards, not just informal usage |
| VTS/coastal radio coordination confirmation | Relevant for sites affected by the 22 Aug 2025 water aerodrome regulation |
| SMS and aircraft registration status | Confirms documentation reflects the 2026 regulatory refresh rather than an outdated cycle |
Clients should treat this as a request list, not a formality. A desk that arranges rather than operates, such as Juara Holding Group, is positioned to collect these documents from the licensed operator on the client’s behalf; a client booking directly with an unfamiliar operator should ask for the same list before confirming dates.
Frequently Asked Questions
Will Indonesia introduce a completely new seaplane charter law before 2027?
Current guidance points toward implementation detail and enforcement guidance layered onto the existing CASR framework and the 22 August 2025 water aerodrome regulation, not a replacement law. As of 2026, no bill number or enactment date for a new headline seaplane law has been published, so private clients should plan around today’s rules and revisit the desk’s guidance closer to the travel date.
Can a foreign charter operator legally fly me between two Indonesian islands in 2027?
No. Aviation Law No. 1 of 2009 prohibits foreign carriers from carrying passengers between two points inside Indonesia, and the Transportation Ministry has confirmed that routing a booking through a foreign online travel platform does not bypass this rule. Any domestic seaplane leg, including inter-island charters, must be flown by an Indonesian Part 135 AOC holder.
Does the 30-seat water aerodrome limit affect private charter group size?
Yes, indirectly. KP 206 Tahun 2021 sets water aerodrome specifications for seaplanes up to 30 seats, and DGCA’s registered bases currently serve nine-seat Cessna 208A Caravan and DHC-6 Twin Otter configurations. A private group larger than a single aircraft’s capacity needs multiple aircraft or rotations, which the desk should confirm against the specific site and operator before booking.