# NTSB MIA92LA159: Grumman G-164A, N5272, Toney, AL, August 4, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 4, 1992, 17:30 local (23:30 UTC)
- Place: Toney, AL
- Coordinates: 34.899703, -86.719154 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.8997&lon=-86.7192&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 14, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 33117
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA92LA159
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33117/pdf
- Page: https://openairdocs.org/ntsb/MIA92LA159

## Probable cause

THE LEFT MAIN LANDING GEAR ATTACHMENT BOLT FAILED FOR UNDETERMINED REASONS RESULTING IN THE COLLAPSE OF BOTH MAIN LANDING GEAR DURING THE TAKE OFF ROLL.

## Sequence of events

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

- Gear collapsed, takeoff
  - landing gear,main gear attachment - failure,total (cause)

## Analysis

THE AIRPLANE WAS ON TAKE OFF ROLL FOR AN AERIAL APPLICATION FLIGHT, WHEN THE LEFT MAIN LANDING GEAR COLLAPSED. THE AIRPLANE TURNED TO THE LEFT 90 DEGREES AND CONTINUED SIDEWAYS DOWN THE RUNWAY COLLAPSING THE RIGHT MAIN LANDING GEAR. THE INVESTIGATION REVEALED THE LEFT MAIN LANDING GEAR ATTACHMENT BOLT FAILED FOR UNDETERMINED REASONS.

## Aircraft

- Registration: [N5272](https://openairdocs.org/aircraft/N5272), registered now, S/N 652 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 652
- Airframe hours: 7442
- Engines: P&W R985-AN-14B 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Valley Flying Service
- Registered owner: Valley Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 4, 1992, 257 hours before
- Departed: NONE, TONEY, AL
- Destination: NONE
- Airport: NONE, Private, runway 9, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane, helicopter; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 15,000 total, 8,000 in this make and model, 14,000 as pilot in command, 300 in the last 90 days, 100 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 5 knots
- Lowest ceiling: 25,000 ft overcast
- Altimeter: 29.00 inHg
- Observed at: HSV, 30 nm away

## 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 19920804029109A](https://openairdocs.org/incident/19920804029109A), Aug 4, 1992: Scwzer G164A, Toney, AL, Substantial damage. Left main gear collapsed on takeoff roll. Slid sideways collapsing right gear. Found gear attach bolt broken.

## Other investigations on N5272 (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 FTW74FRD39](https://openairdocs.org/ntsb/FTW74FRD39), May 16, 1974: Grumman G-164A (N5272), Jennings, LA, 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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