ATL97FA054 · Beech V35
Beech V35 · Accident: in flight encounter with weather en route
From Florida Keys Marathon International Airport (MTH) to Punta Gorda Airport (PGD)
Event
- NTSB case
- ATL97FA054
- 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
- 3 · 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
Beech V35
- Aircraft type
- Beechcraft 35
- 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
- N9049S
- Operator
- John S. Spriggs · private individual
- Onboard fatalities
- Unknown
- Route
- From Florida Keys Marathon International Airport (MTH), Marathon, FLTo Punta Gorda Airport (PGD), Punta Gorda, FL
- 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 · 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 encounter with weather
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Design stress limits of aircraft › Exceeded
- Pilot in command › Flight into adverse weather, inadvertent
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
After departing Marathon, Florida, the aircraft began to encounter instrument meteorological conditions. The pilot received an instrument clearance, including a convective SIGMET warning, and he continued on his flight to Punta Gorda, Florida. At 1907:43, radio contact with the pilot was lost, when the airplane was over the Gulf of Mexico about 20 miles southwest of Marco Island, Florida. Approximately 30 seconds later, radar contact was also lost. Reportedly, the weather in the area included extreme, intense, and very strong weather echoes. The last radar 'hit' of the airplane showed two distinct returns approximately 3/4 of a mile apart; an in-flight breakup of the airplane was presumed to have occurred. One occupant (a private pilot, who was fatally injured) and minimal airplane debris were recovered. The other 2 occupants were presumed to be fatally injured.
Probable cause
inadvertent flight by the pilot into adverse weather conditions (severe thunderstorms), which led the design stress limits of the airplane being exceeded, subsequent in-flight break-up of the airplane, and an uncontrolled collision with water.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ATL97FA054
- Event ID
- 20001208X07484
- Case number
- ATL97FA054
- 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 1997-03-25.
- API snapshot SHA-256: 63080c94860032c016cc8e98e9c30d8679f0afabde89609a3f8f9e64b1c98ee9; retrieved 2026-09-20T23:00:59.636Z.