Cessna 207 N1596U
29 December 2021 · Marathon, Florida, United States · Serious injuries
Summary
On 29 December 2021 at about 16:22 local time, a Cessna 207 registered N1596U, operated by ExecAir of Naples, was involved in an accident near Marathon, Florida, United States. 3 people were on board and one was seriously injured, 2 had minor injuries. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 16:22
- Classification
- Accident
- Location
- Marathon, Florida, United States
- Coordinates
- 24.8986, -81.1153
- Aircraft
- Cessna 207
- Registration
- N1596U
- Category
- Airplane
- Year built
- 1971
- Engines
- 1
- Operator
- ExecAir of Naples
- Operating rule
- Part 135: Air Taxi & Commuter
- Phase of flight
- Not recorded
- Route
- Marathon → Naples
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Day
- NTSB number
- ERA22LA097
People
1 person was seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 3 | 0 | 1 | 2 | 0 |
Probable cause
A total loss of engine power due to the failure of the No. 2 bearing, which resulted in the No. 2 connecting rod failing due to fatigue, high heat, and stress.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
Shortly after departure, the engine lost total power and the pilot was forced to ditch in open water; the occupants egressed and were subsequently rescued by a recreational vessel. Examination of the engine revealed a fracture hole near the No. 2 cylinder, which was likely the result of the No. 2 cylinder connecting rod fracturing in fatigue as a result of high heat and high stress associated with failure of the No. 2 bearing. The fatigue fracture displayed multiple origins consistent with relatively high cyclic stress, which likely occurred as excessive clearances developed between the bearing and the crankshaft journal. The No. 2 connecting rod bearing may have failed due to a material defect in the bearing itself or due to a disruption in the oil lubrication supply to the bearing/journal interface. Either situation can cause similar damage patterns to develop, including excessive heating and subsequent bearing failure.
Quoted verbatim from the NTSB record.
Other Cessna 207 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 Mar 2021 | Cessna 207A | Laredo, Texas, United States | - | No injuries | - |
| 21 Nov 2021 | Cessna 207A | Bethel, Alaska, United States | Paklook Air Inc | No injuries | - |
| 16 Apr 2022 | Cessna 207A | Pilot Station, Alaska, United States | Ryan Air Inc | No injuries | - |
| 10 Sep 2022 | Cessna 207 | Oromomo, Bolivia | - | No injuries | - |
| 28 Jul 2022 | Cessna 207 | Dillingham, Alaska, United States | Grant Aviation Inc | No injuries | - |
| 20 Apr 2022 | Cessna 207 | Carrefour, Haiti | - | Fatal | 5 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 30 Nov 2021 | Piper PA-12 | Labelle, Florida, United States | - | Serious injuries | - |
| 8 May 2021 | Cessna 172RG | Miami, Florida, United States | Silver Express Co DBA | No injuries | - |
| 17 Aug 2021 | Piper PA-28-140 | Orlando, Florida, United States | Airline Training Academy | Serious injuries | - |
| 29 Nov 2021 | Boeing 747-4B5F | Miami, Florida, United States | Kalitta Air LLC | No injuries | - |
| 7 Dec 2021 | Beechcraft S35 | Tallahassee, Florida, United States | James Hunt / AeroMed Transport Co | Minor injuries | - |
| 5 Jul 2021 | Airbus A321-231 | Miami, Florida, United States | American Airlines Inc | Serious injuries | - |