Seaplane Post-Landing Procedures (ASES, AMES)

Only when a sea class is on the ticket — the ATP Certificate Task Table assigns Area VIII Task B for ASES and AMES applicants (and Task A for the land classes), for both initial ATP applicants and added ratings (FAA-S-ACS-11A, Appendix 1). The objective is knowledge, risk management, and skills associated with anchoring, docking, mooring, and ramping/beaching (VIII.B objective), with knowledge elements for each of the four (K1–K4).

The knowledge core for each of the four is below; the full techniques — anchor scope, buoy approaches, beaching surfaces, ramping with the bow wave — are covered card-by-card from the Seaplane Handbook (FAA-H-8083-23) in the commercial guide's Task XI.B. What changes at the ATP level is the standard you are held to in judgment, crew coordination, and the carrier-style postflight that follows.

From the Seaplane Handbook (FAA-H-8083-23 ch. 6):

• Mooring — tying the seaplane to a fixed structure on the surface: a floating buoy, a pier, or a floating raft. A permanent mooring is a heavy bottom weight connected by chain or cable to a buoy, and it "eliminates the problem of the anchor dragging"
• Docking — securing the seaplane to a permanent structure fixed to the shore; the procedure is "essentially the same as for mooring, except that approaching directly into the wind may not be an option"
• The shared core: approach at very low speed, shut down the engine early and let the seaplane coast in with nothing left; never straddle a buoy with a twin-float installation — keep the buoy to the outside of the float; check water-rudder responsiveness while still well clear of the dock, and if control seems marginal, turn away and plan another method

The step-by-step walk-throughs live in the commercial guide's Task XI.B.

Two graded judgments, verbatim from the skill element:

• Select a suitable area considering seaplane movement, water depth, tide, wind, and weather changes (VIII.B S2)
• Use an adequate number of anchors and lines of sufficient strength and length to ensure the seaplane's security (VIII.B S2)

Notice the ACS grades the considerations, not a formula — the evaluator wants to hear each factor addressed for the actual water in front of you: how much room the seaplane needs to swing as wind and tide shift, whether depth holds through the tidal cycle, and what the weather is going to do after you walk away. "Adequate number" and "sufficient strength and length" put the sizing burden on you; the working numbers and holding-ground judgment come from the Seaplane Handbook techniques covered in the commercial guide's Task XI.B.

Approach the dock/mooring buoy or beach/ramp in the proper direction and at a safe speed, considering water depth, tide, current, and wind (VIII.B S3). Direction and energy are the whole game: a seaplane on the water has no brakes, so the approach is planned so that wind and current do the stopping, with the engine shut down early enough that the airplane arrives with nothing left to hurt anyone.

At the ATP level the evaluator is watching the decision structure around the technique — a committed point chosen in advance, an abort path away from the obstruction while control remains, and the call made early rather than salvaged late. The specific handling techniques for each variant are in the commercial guide's Task XI.B.

Coordinate with crew, if applicable, and complete the appropriate checklist(s) (VIII.B S4). A seaplane arrival breaks the normal flow by design — the engine is often shut down mid-sequence to coast in, someone is out of a seat handling lines while the airplane is still moving, and the "gate" may be a dock with bystanders on it. So the coordination is briefed like a crew maneuver:

• Who flies, who handles lines, and when the line handler leaves their seat — before the approach starts, not during it
• What the abort call is and who can make it
• The checklist finishes the interruption — an out-of-sequence shutdown means the written checklist is what verifies the airplane actually ended up secure, mixture/mags/master included

The single-pilot version still gets briefed out loud to the evaluator: at this level, the plan spoken in advance is the demonstration.

The distraction profile is unique: the engine is often already down and the seaplane is still moving while people start doing things — a line handler out of a seat, passengers unbuckling and talking as the dock nears, boat traffic and bystanders on the dock. Every one of them competes with the only task left: arriving with the energy already gone.

The mitigations are Task VIII.A's discipline with less help:

• Sterile flight deck carries over — 121.542 makes all ground operations involving taxi critical phases, and the taxi to the dock is flown to that same standard, not as the start of the debrief (see Task VIII.A)
• Roles are briefed before the approach (S4), so nobody improvises while the airplane coasts
• Radio work is done early — comply with ATC or evaluator instructions and make radio calls as appropriate (VIII.B S1), whether that is a tower over a water lane, a base frequency, or only the evaluator on an empty lake — so the close-in phase is heads-up and quiet

Secure the seaplane, considering the effects of wind, waves, and changes in water level; if ramping, comply with appropriate ground movement procedures (VIII.B S5). The three named forces are the ones that move a seaplane after you leave it: wind swings and drags it, waves work it loose or pound it, and water level — tide or river stage — either floats it free or strands it: an incoming tide can float a beached seaplane in just a few minutes, and a receding tide can leave it stranded 30 or 40 feet from the water in a few hours (FAA-H-8083-23 ch. 6).

The securing answer therefore has a time dimension the land task lacks: not "is it tied now" but "what does this spot look like at low water, at the forecast wind, tonight." The ramping clause folds you back into land-side discipline — once the seaplane is on a ramp it is in a ground-movement environment, and the applicable procedures for that surface apply, just as an amphibian on pavement falls under everything in Task VIII.A.

Because the deadliest moments in seaplane post-landing involve people near a running or recently running engine, in an environment with no fences and no marshallers. The propeller case is the classic: helpers and line handlers moving along floats and docks near a prop arc while the crew's attention is on the water. The mitigation is built into proper technique — the engine is shut down early and the seaplane coasts in, so nobody is ever asked to work close to a turning propeller.

The turbofan wording matters for the airplanes this ACS is written around: an inlet at idle can pull a person in and the exhaust can knock one down, with no propeller to warn that the engine is running (AFH ch. 16). On any turbine seaplane or amphibian operation, dock staff and passengers get the same inlet/exhaust clearance discipline as an airline ramp crew — engines verified down before anyone approaches or disembarks.

The same closing skill as the land task: conduct a postflight inspection and document discrepancies and servicing requirements, if any (VIII.B S6) — and if the operation is under part 121 or 135, the same regulatory machinery applies: irregularities entered in the maintenance log at the end of that flight time (121.563), corrective or deferral action recorded and copies accessible to the crew (121.701, 135.65). Water adds its own inspection items — bilge pumping, corrosion flushing after salt water, water-rudder rigging — which are covered from the Seaplane Handbook in the commercial guide's Task XI.B.

The ATP habit to demonstrate: the water-specific findings go into the same documentation system as everything else. "Some water in the left float, more than usual" is a maintenance-log entry with a quantity and a location, not a remark to the dock hand.

The elements read like the land task — airport/seaplane base security procedures (R4) and disembarking passengers safely on the ramp and monitoring passenger movement while on the ramp (R5) — but the environment removes the infrastructure that usually does the work for you:

• A seaplane base may have no fence, no badge access, and no staff; where a security program exists (a carrier's program, a base operator's rules), you comply with it, and where none exists you say so and secure the airplane accordingly rather than inventing procedures
• Passengers step onto docks, ramps, and beaches — slippery surfaces at the water's edge, with boat traffic and other aircraft movements no one is directing. The monitoring duty in R5 is continuous, and the walking route, the order of movement, and who is watching are decided before the first door opens
• The propeller/inlet clearance rules of R3 apply to every neighboring aircraft, not just yours

Same principle as Task VIII.A, executed with less help.