# NTSB FTW82DA227: Boeing 75A, N450LR, Picher, OK, June 16, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: June 16, 1982, 18:30 local (23:30 UTC)
- Place: Picher, OK
- Coordinates: 36.979362, -94.830574 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.9794&lon=-94.8306&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 16, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72222
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW82DA227
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72222/pdf
- Page: https://openairdocs.org/ntsb/FTW82DA227

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, climb
  - eng assembly,blower/impeller/integral supercharger - failure,total (cause)
- Forced landing, landing - flare/touchdown
- On ground/water collision with object, landing - roll
  - terrain condition - wet (contributing factor)
  - object - fence (contributing factor)
- Nose over, landing - roll

## Analysis

THE PILOT HAD JUST COMPLETED SPRAYING A FIELD AND WAS CLIMBING TO RETURN TO HIS HOME AIRSTRIP WHEN THE ENGINE FAILED. HE LANDED IN A NEARBY PASTURE BUT WAS UNABLE TO STOP ON THE WET TERRAIN BEFORE HITTING A LOW FENCE. THE MAIN GEAR CAUGHT ON THE FENCE AND THE PLANE NOSED OVER. A TEARDOWN OF THE ENGINE REVEALED THAT THE THREE BLOWER BEARINGS, PN 12768, HAD FAILED. SUBSEQUENTLY, THE FLOATING GEAR AND IDLE GEARS WERE DAMAGED.

## Aircraft

- Registration: N450LR (not matched to a registry record)
- Reported make and model: BOEING 75A
- Category: Airplane
- Serial number: 75-789
- Airframe hours: 7983
- Engines: P&W R-985-14B 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 137
- Operator: Robert O. Clark
- Registered owner: Robert O. Clark
- Departed: MIAMI, OK
- Destination: MIAMI, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 530 total, 121 in this make and model, 410 as pilot in command, 19 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Temperature: 158 °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 19820616024009A](https://openairdocs.org/incident/19820616024009A), Jun 16, 1982: Boeing IB75A, Picher, OK, Substantial damage. Engine lost power during ag operation. Gear struck a fence on emergency landing. Blower bearing failure.

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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