# NTSB NYC91LA253: North American T-6G, N3167G, Manchester, NH, September 29, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 29, 1991, 15:40 local (19:40 UTC)
- Place: Manchester, NH
- Location: 42.9328° N, 71.4357° W: Placed by OpenAirDocs at MANCHESTER BOSTON RGNL (MHT), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.9328&lon=-71.4357&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 5, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 37026
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91LA253
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37026/pdf
- Page: https://openairdocs.org/ntsb/NYC91LA253

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN CONTROL.  A FACTOR WAS THE UNFORECASTED STRONG CROSS WINDS.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - weather condition - unfavorable wind (contributing factor)
  - aircraft control - not maintained, pilot in command (cause)

## Analysis

DURING A DAYLIGHT APPROACH THE PILOT EXPERIENCED STRONGER THAN FORECASTED CROSSWINDS.  DURING THE LANDING ROLL THE PILOT LOST CONTROL AND VEERED ABRUPTLY LEFT CAUSING THE LEFT MAIN LANDING GEAR TO COLLAPSE AND RESULTING IN SUBSTANTIAL DAMAGE TO THE AIRPLANE.  WINDS WERE FROM 310 DEGREES AT 8 KNOTS GUSTING TO 14 KNOTS.  TOWER PERSONNEL WERE PREPARING TO SHIFT FROM RUNWAY 17 TO RUNWAY 35 WHEN THE ACCIDENT OCCURRED.

## Aircraft

- Registration: [N3167G](https://openairdocs.org/aircraft/N3167G), registered now, S/N 49-3272 (OpenAirDocs)
- Reported make and model: North American T-6G
- Registry model: [North American T-6G](https://openairdocs.org/model/north-american-t-6g) (registry code 6400432) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 49-3272
- Airframe hours: 6529
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Albert Costa
- Registered owner: Albert Costa
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 15, 1991
- Departed: MHT, MANCHESTER, NH
- Airport: MHT, Grenier, runway 17, 7,001 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 742 total, 675 as pilot in command, 18 in the last 90 days, 12 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 8 knots, gusting 14
- Visibility: 20 statute miles
- Lowest ceiling: 10,000 ft overcast
- Temperature: 64 °F, dew point 41 °F
- Altimeter: 30.00 inHg

## 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 19910929043529A](https://openairdocs.org/incident/19910929043529A), Sep 29, 1991: Namer T6G, Manchester, NH, Substantial damage. Lost control landing in gusty quartering tailwind. Ground looped.

## Other investigations on N3167G (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 ERA17CA149](https://openairdocs.org/ntsb/ERA17CA149), Apr 8, 2017: North American T 6G (N3167G), Culpepper, VA, substantial damage. Probable cause: The pilot's failure to maintain airplane and directional control during the landing roll and subsequent go-around in gusting wind conditions.

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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