Hyannis Air Service Cessna 402 C accident
Cessna 402 C · Accident: birdstrike on approach
From Terrance B. Lettsome International Airport (TUPJ) to an unrecorded destination
Narrative check · The NTSB narrative appears to contradict this record's location. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- ERA23LA257
- 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
- Charter & commuter
- 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 402 C
- Aircraft type
- Cessna 402
- 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
- N7037E
- Operator
- Hyannis Air Service
- Onboard fatalities
- Unknown
- Route
- From Terrance B. Lettsome International Airport (TUPJ), RoadtownTo not recorded
- Aircraft age
- About 42 years (built 1981)
- 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 135: Air Taxi & Commuter
- 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
- Approach · VFR pattern downwind
- 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
- Birdstrike
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
- Environmental issues › Physical environment
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The operator reported that while entering the traffic pattern for landing, the pilot saw a large bird and attempted to take evasive action, but the airplane and the bird collided. The bird entered the cabin through the right windscreen and struck two passengers. One passenger sustained serious injuries while the other passenger incurred minor injuries. The pilot declared an emergency and subsequently landed the airplane uneventfully. The operator reported that there were no preaccident mechanical malfunctions or failures of the airplane that would have precluded normal operation.
Probable cause
An in-flight collision with a bird while entering the traffic pattern.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA23LA257
- Event ID
- 20230606192322
- Case number
- ERA23LA257
- 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: 5401aff1da15acd98df12d10cd4b9ec6954af62022d2898c79b89ae3d27dc1ce; retrieved 2026-09-16T17:42:00.835Z.