# NTSB NYC84LA121: Aeronca 7AC, N84074, Chatham, MA, March 25, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 25, 1984, 09:30 local (14:30 UTC)
- Place: Chatham, MA
- Location: 41.6739° N, 69.9629° W: Placed by OpenAirDocs: center of Chatham, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.6739&lon=-69.9629&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35521
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC84LA121
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35521/pdf
- Page: https://openairdocs.org/ntsb/NYC84LA121

## Sequence of events

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

- On ground/water collision with object, taxi - from landing
  - object - airport facility (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
  - visual/aural perception, pilot in command (contributing factor)
  - facility,inadequate design, airport personnel (contributing factor)

## Analysis

AFTER LANDING, AS THE PLT WAS TAXIING TO THE PARKING AREA, THE ACFT HIT A RWY IDENTIFIER SIGN. THE LEFT HORIZONTAL STABILIZER, ELEVATOR & RUDDER WERE DAMAGED. THE PLT SAID THE SIGN WAS PAINTED BLACK & WAS NOT CLEARLY VISIBLE. ALSO, THE SIGN WAS NOT OF A BREAKAWAY DESIGN.

## Aircraft

- Registration: [N84074](https://openairdocs.org/aircraft/N84074), registered now, S/N 7AC-2761, built 1946 (OpenAirDocs)
- Reported make and model: AERONCA 7AC
- Registry model: [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac) (registry code 2110102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 7AC-2161
- Airframe hours: 2300
- Engines: CONTINENTAL A-65 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Steven M. Trieber
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 25, 1983
- Departed: 2B1, MARSTON MILLS, MA
- Airport: OB6, Chatham Muni

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: rear; flight hours: 1,120 total, 1,020 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 7 statute miles
- Lowest ceiling: none

## 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 19840325012389A](https://openairdocs.org/incident/19840325012389A), Mar 25, 1984: Bbavia 7AC, Chatham, MA, Substantial damage. Collided with a runway identifier sign while turning off the runway after landing.

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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