# NTSB FTW85FPJ01: Grumman AG CAT G-164, N5338, Norman, OK, April 1, 1985

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: April 1, 1985, 09:30 local (15:30 UTC)
- Place: Norman, OK
- Coordinates: 35.249351, -97.46009 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.2494&lon=-97.4601&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21576
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85FPJ01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21576/pdf
- Page: https://openairdocs.org/ntsb/FTW85FPJ01

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - object - wire,static (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
  - diverted attention, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE ACFT COLLIDED WITH A HIGH STATIC WIRE ON AN ELECTRIC TRANSMISSION LINE BEFORE COLLIDING OUT OF CONTROL WITH THE GROUND. THE PLT STATED AFTER THE ACCIDENT THAT HE FORGOT ABOUT THE STATIC LINE AND FLEW INTO IT DURING A MANEUVER FOR AERIAL SPRAYING.

## Aircraft

- Registration: [N5338](https://openairdocs.org/deregistered/N5338-2015-03-10), registration cancelled 2015-03-10, S/N 626, built 1969 (OpenAirDocs)
- Reported make and model: GRUMMAN AG CAT G-164 (AG CAT G-1)
- 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: 626
- Airframe hours: 450
- Engines: P&W R-985-AN1 450 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Leo C Hockemeyer
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, January 20, 1985, 30 hours before
- Departed: NORMAN, OK
- Destination: NORMAN, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; commercial; airplane ratings: single-engine sea, single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 8,000 total, 4,000 in this make and model, 8,000 as pilot in command, 30 in the last 90 days, 30 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 11 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 48 °F
- Altimeter: 30.00 inHg
- Observed at: OKC, 15 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 19850401010009A](https://openairdocs.org/incident/19850401010009A), Apr 1, 1985: Scwzer G164A, Norman, OK, Destroyed. Hit top static wire of high powered lines maneuvering for spraying run, then fell to ground. Toxic chemical spilled

## Other investigations on N5338 (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 SEA76DTI23](https://openairdocs.org/ntsb/SEA76DTI23), Apr 9, 1976: Grumman G-164A (N5338), Chester, MT, 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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