# NTSB ANC89LA089: Cessna 150-L, N1612Q, Alexander River, AK, June 12, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 11, 1989, 16:30 local (Jun 12, 1989, 00:30 UTC)
- Place: Alexander River, AK
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 22, 1990
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5198
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC89LA089
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5198/pdf
- Page: https://openairdocs.org/ntsb/ANC89LA089

## Probable cause

THE FAILURE OF THE PILOT TO LAND AT THE PROPER TOUCHDOWN POINT AND THE RESULTING HARD LANDING. DAMAGE TO THE AIRPLANE PRECLUDED A GO-AROUND AND RESULTED IN THE INTENTIONAL SWERVE INTO A RIVER TO AVOID INJURIES TO PEOPLE ON THE GROUND.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - terrain condition - loose gravel/sandy
  - proper touchdown point - exceeded, pilot in command (cause)
  - flare - improper, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - flare/touchdown
  - propeller system/accessories,blade - bent
  - go-around - discontinued, pilot in command
- Abrupt maneuver, landing - roll
  - ground loop/swerve - intentional, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - water

## Analysis

THE AIRPLANE WAS LANDED LONG ON AN UNIMPROVED STRIP. IT TOUCHED DOWN HARD WHICH RESULTED IN THE PROPELLER STRIKING THE GROUND. A GO-AROUND WAS ATTEMPTED UNSUCCESSFULLY BECAUSE OF INSUFFICIENT THRUST FROM THE DAMAGED PROPELLER. THE PILOT INTENTIONALLY SWERVED THE AIRPLANE INTO THE ADJACENT RIVER TO AVOID PEOPLE & EQUIPMENT ON THE FAR END OF THE STRIP.

## Aircraft

- Registration: [N1612Q](https://openairdocs.org/deregistered/N1612Q-2012-10-15), registration cancelled 2012-10-15, S/N 15072912, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 150-L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 7215712
- Engines: LYCOMING O-320-A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: John E Lilly
- Airworthiness certificate: Standard, Normal
- Departed: LHD, ANCHORAGE, AK
- Flight plan: VFR
- Airport: runway 16, 1,800 × 50 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; commercial; airplane ratings: single-engine land, single-engine sea; medical: class 2, valid medical--w/ waivers/lim; flight hours: 3,700 total, 6 in this make and model, 3,700 as pilot in command, 1 in the last 90 days, 1 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 160° at 7 knots
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 39 °F
- Altimeter: 29.00 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 19890611015189A](https://openairdocs.org/incident/19890611015189A), Jun 11, 1989: Cessna STC150, Alexander Creek, AK, Substantial damage. Bounced landing on sandbar. Began go around but aborted due to beleived bent prop. Nosed over in water off sandbar

## Other investigations on N1612Q (1)

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.

- [NTSB ANC10CA090](https://openairdocs.org/ntsb/ANC10CA090), Sep 12, 2010: Cessna 150L (N1612Q), Kenai, AK, substantial damage. Probable cause: The pilot's decision to takeoff from a remote lake after overloading the airplane. Contributing to the accident was the pilot's lack of a seaplane rating.

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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