# NTSB ANC82DA043: Arctic S1B2, N65AT, Near Big Lake, AK, May 29, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: May 29, 1982, 11:30 local (19:30 UTC)
- Place: Near Big Lake, AK
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 29, 1983
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 71847
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC82DA043
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71847/pdf
- Page: https://openairdocs.org/ntsb/ANC82DA043

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Undershoot, approach - vfr pattern - base leg/base to final
  - distance - misjudged, dual student (cause)
  - altitude - misjudged, dual student (cause)
  - supervision - improper, pilot in command(cfi) (cause)
- In flight collision with object, approach - vfr pattern - base leg/base to final
  - object - tree(s) (contributing factor)

## Analysis

THE PURPOSE OF THE FLIGHT WAS TO PROVIDE DUAL INSTRUCTION TO A RATED SINGLE-ENGINE-LAND PILOT IN BASIC FLOAT PLANE TRAINING. AFTER PRACTICING A NUMBER OF LANDINGS, THE INSTRUCTOR (IP) SIMULATED AN ENGINE-OUT BY REDUCING THE POWER TO 1000-1200 RPM. AT THIS TIME THE AIRCRAFT WAS ON A CLOSE-IN DOWNWIND LEG BESIDE THE LAKE. THE IP REALIZED THE STUDENT WOULD NOT BE ABLE TO LAND ON THE LAKE WITHOUT ADDING POWER. HE TOLD THE STUDENT TO ADD POWER AND THEN TOOK THE CONTROLS. THE AIRCRAFT CONTINUED TO SINK AND THE FLOATS STRUCK THE TOPS OF SEVERAL TREES WHILE ON A SHORT BASE LEG. THE IP VISUALLY CHECKED THE FLOATS AND SAW NO DAMAGE, BUT DID NOTICE THE PLANE WAS CARRYING SOME BRANCHES. HE MADE A CONTROLLED LANDING IN THE WATER AND THEN HEADED FOR THE SHORE. BY THE TIME THEY GOT TO THE SHORE, THE DAMAGED FLOAT RIGGING ALLOWED THE PLANE TO LEAN TO THE RIGHT WITH THE RIGHT WING DRAGGING IN THE WATER.

## Aircraft

- Registration: [N65AT](https://openairdocs.org/aircraft/N65AT), registered now, S/N 1016, built 1981 (OpenAirDocs)
- Reported make and model: ARCTIC S1B2
- Registry model: [Arctic S-1B2](https://openairdocs.org/model/arctic-s-1b2) (registry code 0790208) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1016
- Airframe hours: 107
- Engines: LYCOMING O-320-B2B 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Elmendorf Aero Club
- Registered owner: Elmendorf Aero Club
- Departed: ANCHORAGE, AK
- Destination: ANCHORAGE, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; commercial, flight instructor; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 967 total, 9 in this make and model, 725 as pilot in command, 93 in the last 90 days, 26 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 7 knots
- Visibility: 30 statute miles
- Lowest ceiling: 3,500 ft broken
- Temperature: 113 °F
- Altimeter: 30.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19820529019889A](https://openairdocs.org/incident/19820529019889A), May 29, 1982: Amtr TERN2, Big Lake, AK, Substantial damage. Instructor simulated engine out landing. Aircraft hit trees on approach.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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