ANC99LA134 · Cessna 180
Cessna 180 · Accident: overrun during takeoff
From Shannons Pond Seaplane Base (0Z3) to TIKCHIK LAKES, AK
Event
- NTSB case
- ANC99LA134
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Cessna 180
- Aircraft type
- Cessna 180
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N5316D
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Shannons Pond Seaplane Base (0Z3), SHANNONS POND, AKTo TIKCHIK LAKES, AK
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Takeoff · roll/run
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Overrun
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The float equipped airplane was departing to the northeast on a 1,400 feet long seadrome. The pilot told the NTSB IIC that the winds were about four knots, and the water was lightly rippled. He said the fuel tanks were full, and that he could have managed his fuel load better. The estimated takeoff weight was 2,813 pounds. The maximum allowable takeoff weight was 2,820 pounds. The pilot said the airplane got 'on step' normally but did not lift off the water prior to striking the bank at the end of the lake. The Cessna 180A operator's handbook states the required water run for the takeoff conditions is 1,356 feet.
Probable cause
The pilot's inadequate preflight planning. Factors associated with the accident were a short runway, and the pilot's failure to use available performance data.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ANC99LA134
- Event ID
- 20001212X19662
- Case number
- ANC99LA134
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 1999-09-07.
- API snapshot SHA-256: 0bb3496b7a67674c3be070db8b99a6cc39da4351e55b4192752f39cf43c52697; retrieved 2026-09-22T14:11:58.516Z.