# NTSB NYC88LA038: Grumman AA-1B, N8993L, Tewksbury, MA, November 14, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 14, 1987, 14:00 local (19:00 UTC)
- Place: Tewksbury, MA
- Location: 42.6106° N, 71.2342° W: Placed by OpenAirDocs: center of Tewksbury, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.6106&lon=-71.2342&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 26, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 36062
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC88LA038
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36062/pdf
- Page: https://openairdocs.org/ntsb/NYC88LA038

## Sequence of events

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

- Nose gear collapsed, landing - flare/touchdown
  - flare - improper, pilot in command (cause)
  - recovery from bounced landing - improper, pilot in command (cause)
  - landing gear,nose gear - overload
- Nose over, landing - roll

## Analysis

THE STUDENT PILOT WAS ATTEMPTING A LANDING AT TEWKSBURY, MASSACHUSETTS WHEN HE FLARED ABOVE THE RUNWAY, BOUNCED SEVERAL TIMES AND COLLAPSED THE NOSE WHEEL. THE AIRCRAFT SLID DOWN THE RUNWAY, MADE CONTACT WITH THE RIGHT SIDE OF THE RUNWAY EDGE, SPUN AROUND, THEN FLIPPED INVERTED.

## Aircraft

- Registration: [N8993L](https://openairdocs.org/deregistered/N8993L-1989-03-21), registration cancelled 1989-03-21, S/N AA1B0443 (OpenAirDocs)
- Reported make and model: GRUMMAN 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: AA-1B-0443
- Airframe hours: 2923
- Engines: LYCOMING O-235-C2C 108 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Tew Mac Aviation
- Registered owner: Tew-Mac Aviation
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, March 27, 1987, 32 hours before
- Departed: B09, TEWKSBURY, MA
- Airport: B09, Tew-Mac, runway 21, 2,830 × 26 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; student; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 13 total, 13 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 8 knots
- Lowest ceiling: none
- Temperature: 39 °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 19871114068009A](https://openairdocs.org/incident/19871114068009A), Nov 14, 1987: Gulstm AA1B, Tewkbury, MA, Substantial damage. Landed nose first, bounced, porpoised and flipped over during a landing.

## Other investigations on N8993L (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 NYC78FNC30](https://openairdocs.org/ntsb/NYC78FNC30), Jun 10, 1978: Grumman AA-1B (N8993L), Wiscasset, ME, substantial damage

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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