CHI93LA376 · Cessna 150H
Cessna 150H · Accident: in flight collision with terrain/water en route
Event
- NTSB case
- CHI93LA376
- 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 150H
- Aircraft type
- Cessna 150
- 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
- N22313
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- 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
- En route · climb to cruise
- 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
- In flight collision with terrain/water
- 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
- Pilot in command › Airspeed, improper
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PILOT PICKED UP A 20'X 50' BANNER AND BEGAN WHAT HE DESCRIBED AS A NORMAL, FULL THROTTLE CLIMB AT 45 MPH. HE SAID THE ENGINE RAN SMOOTH DURING THE ENTIRE OPERATION. DURING THE CLIMB THE PILOT NOTICED THE CLIMB RATE DECREASE AND CHANGE TO A DESCENT. THE PIILOT TURNED THE AIRPLANE TOWARD THE AIRPORT TO AVOID POWERLINES IN THE FLIGHT PATH. ACCORDING TO THE PILOT, THE AIRPLANE BEGAN TO DESCEND MORE RAPIDLY DURING THE TURN. HE STATED HE ATTEMPTED TO RELEASE THE BANNER DURING THE TURN BUT WAS UNSURE WHEN THE BANNER ACTUALLY DROPPED. AS THE AIRPLANE DESCENDED THE PILOT RETRACTED THE FLAPS WITH THE INTENTION OF EXTENDING THE GLIDE DISTANCE. HE SAID THE AIRPLANE DESCENDED MORE RAPIDLY BECAUSE HE PITCHED DOWN AFTER THE FLAPS WERE RETRACTED. THE AIRPLANE COLLIDED WITH THE GROUND. THE ON-SCENE INVESTIGATION REVEALED THE ENGINE WAS CAPABLE OF PRODUCING FULL STATIC RPM WITHOUT ANY ROUGHNESS. THE OWNER OF THE BANNER TOWING COMPANY STATED THE AIRPLANE SHOULD BE CLIMBED AT 60 KNOTS. THE ACCIDENT AIRPLANE WAS EQUIPPED WITH TWO AIRSPEED INDICATORS. BOTH HAD RED MARKS ADJACENT TO THE 60 KNOT MARKINGS ON THE DIAL OF THE INSTRUMENT.
Probable cause
an improper climb airspeed established by the pilot-in-command after banner pickup.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI93LA376
- Event ID
- 20001211X13388
- Case number
- CHI93LA376
- 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: investigation status. 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: ffe30315e1e41f67cbb9f3e4f2e994ed31c2e519b3fc3068a2df302b6f02778e; retrieved 2026-09-23T01:35:23.023Z.