# NTSB SEA84LA087: PZL-Mielec PZL-M-18, N28951, Rockford, WA, April 16, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: April 16, 1984, 11:00 local (19:00 UTC)
- Place: Rockford, WA
- Coordinates: 47.479736, -117.140068 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.4797&lon=-117.1401&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39899
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA84LA087
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39899/pdf
- Page: https://openairdocs.org/ntsb/SEA84LA087

## Sequence of events

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

- In flight collision with object, takeoff - initial climb
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - airspeed - not obtained, pilot in command
  - stall/mush - inadvertent, pilot in command
  - object - fence (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PLT SAID THE ACFT WAS A 'LITTLE HEAVIER' THAN IT SHOULD HAVE BEEN. THE ACFT BOUNCED SETTLED AFTER TAKEOFF AND THE RIGHT WING HIT A FENCE POST. THE COLLISION JAMMED THE RIGHT AILERON DOWN AND THE ACFT BECAME UNCONTROLLABLE AND CRASHED.

## Aircraft

- Registration: [N28951](https://openairdocs.org/deregistered/N28951-1992-12-02), registration cancelled 1992-12-02, S/N 1Z00715 (OpenAirDocs)
- Reported make and model: PZL-Mielec PZL-M-18
- Registry model: [Wsk-Pzl-Mielec PZL-M-18](https://openairdocs.org/model/wsk-pzl-mielec-pzl-m-18) (registry code 9810102) (OpenAirDocs)
- Category: Airplane
- Serial number: 12007-15
- Airframe hours: 401
- Engines: ASZ 621R-M18 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Lonnie Roth
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, February 18, 1984
- Airport: runway 30, 2,400 ×  ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 10,979 total, 132 in this make and model, 132 as pilot in command, 132 in the last 90 days, 116 in the last 30 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 63 °F, dew point 46 °F
- Altimeter: 29.00 inHg
- Observed at: SFF, 23 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 19840416013739A](https://openairdocs.org/incident/19840416013739A), Apr 16, 1984: Wsk PZLM18, Rockford, WA, Substantial damage. Right wing struck a fence post as overloaded aircraft settled after liftoff. Impact jammed aileron. Crash landed.

## Other investigations on N28951 (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 SEA92LA184](https://openairdocs.org/ntsb/SEA92LA184), Aug 20, 1992: WSK PZL Mielec PZL-M-18 (N28951), Mattawa, WA, destroyed. Probable cause: LOSS OF ENGINE POWER DUE TO FUEL CONTAMINATION AS A RESULT OF INADEQUATE MAINTENANCE BY THE OPERATOR. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS SOFT TERRAIN.

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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