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WPR22LA242 · Cessna 120

28 Jun 2022 · San Carlos, CA, United States

Cessna 120 · Accident during initial climb

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Event

NTSB case
WPR22LA242
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
Event fatalities
Unknown
Ground fatalities
Unknown
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 120

Aircraft type
Cessna 120
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
N2056V
Operator
Unknown
Onboard fatalities
Unknown
Route
From not recordedTo not recorded
Aircraft age
About 75 years (built 1947)
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
Initial climb
Defining eventThe 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
Unknown or undetermined
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

  • Not determined › Not determined

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

The accident pilot reported that, 2 days before the accident, the airplane was flown uneventfully by another pilot to the destination airport using the right fuel tank. The pilot who previously flew the airplane reported that he had refueled the airplane with 15 gallons of fuel before that flight, which lasted about 1 hour and 40 minutes; he used the right tank for that flight. He did not indicate that the tanks had been completely filled, noting that 15 gallons was all he needed for the flight. As he approached the destination, he switched to the left fuel tank and landed uneventfully.

According to the accident pilot, after conducting a preflight inspection on the day of the accident, he taxied the airplane out to the runway using the right fuel tank. He recalled that the right tank was full of fuel, which would be inconsistent with the right tank’s fuel state if the previous flight had been flown using the right tank. Following an engine runup, he departed. As the airplane was about 400 ft above ground level, the engine rpm decayed to about 1,800 rpm. The pilot performed a 180° turn but was unable to make it to the runway and landed on an airport perimeter road. The airplane bounced, impacted the fence, and came to rest upright on the airport transient parking ramp. The pilot stated that, after the accident, he observed the right fuel line was “severed” with “pouring out fuel.”

Postaccident examination of the airplane revealed that the right fuel line from the lower door frame structure had separated from the fuel fitting. Examination of the recovered airframe and engine revealed no evidence of any preexisting mechanical malfunction that would have precluded normal operation.

Although the investigation did not identify performance information for the O-200-A engine installed on the Cessna 120 specifically for fuel burn, given the fuel burn of the O-200-A, and estimated flight time, the previous flight would have used about 10 gallons of fuel. This would place the fuel level in the fuel tank below 1/4 tank, which would prohibit takeoff according to the airplane owner’s manual. Although the pilot may have inadvertently used the wrong fuel tank for takeoff, which could have unported the fuel tank and interrupted the subsequent fuel delivery to the engine, the investigation could not determine the position of the fuel selector valve at the time of the accident. The reason for the total loss of engine power could not be determined.

Probable cause

The total loss of engine power for undetermined reasons.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR22LA242
Event ID
20220708105433
Case number
WPR22LA242
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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: investigation status, cause areas. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: bad318e849b67e844dbfe601009fb00e6d854f0b61faf64fa30087b945616de9; retrieved 2026-09-16T15:25:49.447Z.