# NTSB NYC83LA003: Grumman American AA-1B, N9923L, Ipswich, MA, October 5, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 4, 1982, 20:25 local (Oct 5, 1982, 00:25 UTC)
- Place: Ipswich, MA
- Location: 42.6757° N, 70.8220° W: Placed by OpenAirDocs: center of Ipswich, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.6757&lon=-70.8220&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 4, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71156
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC83LA003
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71156/pdf
- Page: https://openairdocs.org/ntsb/NYC83LA003

## Sequence of events

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

- In flight collision with terrain/water, maneuvering
  - light condition - dark night (contributing factor)
  - low pass - performed, pilot in command (contributing factor)
  - terrain condition - sand bar (contributing factor)
  - clearance - misjudged, pilot in command (cause)

## Analysis

THE PILOT DESCENDED OVER WATER AT NIGHT AND ELECTED TO FLY OVER A BEACH AREA AT 100 TO 200 FT AGL. HE REPORTED THAT HE LOWERED THE NOSE BRIEFLY TO SEE BETTER. AT ABOUT THAT TIME, THE AIRCRAFT COLLIDED WITH A SAND BANK.

## Aircraft

- Registration: [N9923L](https://openairdocs.org/deregistered/N9923L-1985-02-14), registration cancelled 1985-02-14, S/N AA1B-0223 (OpenAirDocs)
- Reported make and model: GRUMMAN AMERICAN AA-1B
- Registry model: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103) (OpenAirDocs)
- Category: Airplane
- Serial number: 0223
- Airframe hours: 4099
- Engines: LYCOMING O-235-C20 108 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Tew-Mac Aviation
- Registered owner: Tew-Mac Aviation
- Departed: B09, TEWSBURY, MA
- Destination: B09, TEWSBURY, MA
- Airport: B09

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; flight hours: 211 total, 131 in this make and model, 161 as pilot in command, 36 in the last 90 days

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: calm
- Temperature: 113 °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 19821004054359A](https://openairdocs.org/incident/19821004054359A), Oct 4, 1982: Gulstm AA1B, Ipswich, MA, Substantial damage. Struck a sand bar during low level night sighting flight over harbor waters.

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.

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