# NTSB NYC85FNC06: Piper PA-11, N4810M, Moultonboro, NH, July 21, 1985

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: July 21, 1985, 11:05 local (15:05 UTC)
- Place: Moultonboro, NH
- Location: 43.7548° N, 71.3967° W: Placed by OpenAirDocs: center of Moultonborough, NH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.7548&lon=-71.3967&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 3 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35620
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC85FNC06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35620/pdf
- Page: https://openairdocs.org/ntsb/NYC85FNC06

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, takeoff - initial climb
  - airspeed - not maintained, pilot in command (cause)
  - maneuver - improper, pilot in command (cause)
  - proper climb rate - not attained, pilot in command (cause)
  - judgment - poor, pilot in command (cause)
  - stall - uncontrolled, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - water,glassy (contributing factor)

## Analysis

THE 65 HP ACFT TOOK OFF FROM A COVE AND DURING A TURN AT ABOUT 150 FT AGL THE ACFT NOSED DWN AFTER ROLLING RT. THE ACFT STRUCK THE WATER IN A STEEP NOSE DOWN ATTITUDE. ACCORDING TO WITNESSES, THE BNG WAS RUNNING NORMALLY DURING THE CLIMB AND DESCENT. NO MECHANICAL DISCREPANCIES WERE NOTED. ONE WITNESS SAID HE HAD ALMOST REPORTED THE PLT FOR LOW FLYING AND TREE TOP MANEUVERS ON PREVIOUS FLTS IN THE AREA.

## Aircraft

- Registration: [N4810M](https://openairdocs.org/deregistered/N4810M-2013-11-01), registration cancelled 2013-11-01, S/N 11-321 (OpenAirDocs)
- Reported make and model: PIPER PA-11
- Registry model: [Piper PA-11](https://openairdocs.org/model/piper-pa-11) (registry code 7101102) (OpenAirDocs)
- Category: Airplane
- Serial number: 11-321
- Airframe hours: 2170
- Engines: CONTINENTAL C-90-12F 90 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: John R. Carlson
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, June 21, 1985

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--no waivers/lim.; seat: front; flight hours: 675 total, 36 in this make and model, 625 as pilot in command, 36 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 6 knots
- Visibility: 70 statute miles
- Lowest ceiling: none
- Temperature: 77 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19850721032829A](https://openairdocs.org/incident/19850721032829A), Jul 21, 1985: Piper PA11, Moultonboro, NH, Destroyed. Stalled after water takeoff and impacted water. Short takeoff run near gross weight and trees are factors.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.