# Accident 20071222832119A: Cessna 170B, Alton, NH, December 22, 2007

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 22, 2007, 12:30 local time
- Place: Alton, NH
- Damage: Substantial damage
- Phase of flight: In Traffic Pattern-Circling
- Operating rules: General operating rules (Part 91)
- Location: 43.3867° N, 71.2333° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.3867&lon=-71.2333&mi=10
- Aircraft: N3070A, registered now (https://openairdocs.org/aircraft/N3070A) (OpenAirDocs)
- Registry model: Cessna 170B (registry code 2072306, https://openairdocs.org/model/cessna-170b) (OpenAirDocs)
- Registry engine: Continental C145 series (registry code 17012, https://openairdocs.org/engine/continental-c145-series) (OpenAirDocs)
- Reported make and model: CESSNA 170B
- People aboard: 4
- Fatal injuries: 0
- Pilot flight hours: 1,500 total, 1,200 in this make and model, 40 in the last 90 days
- NTSB investigation: [NTSB NYC08CA068](https://openairdocs.org/ntsb/NYC08CA068) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20071222832119A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) THE PILOT DEPARTED SANFORD, MAINE WITH THREE PASSENGERS HEADING FOR LOCKE LAKE AIRPORT AT BARNSTEAD, NEW HAMPSHIRE (GRASS STRIP). THE PILOT WAS EXECUTING A DOWN WIND OVER THE LAKE THAT PARALLELS THE GRASS STRIP. HE EXPLAINED THAT HE TOOK THE OPPORTUNITY DURING THE DOWN WIND TO FLY LOW TO SHOW HIS PASSENGERS WHERE THE SNOW WAS GOING TO BE PLOWED FOR A RUNWAY ON THE FROZEN LAKE. IT WAS AT THIS POINT WHEN HE LOST HIS DEPTH PERCEPTION AND BECAME DISORIENTED DUE TO THE SNOW COVERED LAKE, COMBINED WITH THE OVER CAST SKIES. THIS RESULTED IN AN UNEXPECTED LANDING ON THE LAKE AND DAMAGE TO THE AIRCRAFT WHEN THE RIGHT LANDING GEAR COLLAPSED UPON IMPACT. THE RIGHT WING THEN IMPACTED THE SNOW, PIVOTING THE AIRCRAFT 180 DEGREE. THE RIGHT WING SUSTAINED SUBSTANTIAL DAMAGE AS IT BUCKLED AT THE WING ROOT. THE FUSELAGE ALSO SUSTAINED DAMAGE AS EVIDENT BY DEFORMATION OF BOTH DOOR FRAMES. THE PILOT AND HIS THREE PASSENGERS REPORTED NO INJURIES.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB NYC08CA068](https://openairdocs.org/ntsb/NYC08CA068), Dec 22, 2007: Cessna 170B (N3070A), Alton, NH, substantial damage. Probable cause: The pilot's failure to maintain clearance above a frozen lake while maneuvering. Factors contributing to the accident were the pilot's attempt of the low altitude maneuver, and unfavorable lighting…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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