# NTSB SEA82DA056: Piper PA-22-108, N5001Z, Snohomish, WA, August 5, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 4, 1982, 20:00 local (Aug 5, 1982, 04:00 UTC)
- Place: Snohomish, WA
- Coordinates: 47.980304, -122.19992 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.9803&lon=-122.1999&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 4, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72633
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82DA056
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72633/pdf
- Page: https://openairdocs.org/ntsb/SEA82DA056

## Sequence of events

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

- Overrun, landing - roll
  - distance - misjudged, pilot in command (cause)
  - airspeed - misjudged, pilot in command (cause)
- Nose over, landing - roll
  - landing gear,normal brake system - failure,total (cause)

## Analysis

THE PILOT STATED THAT HE KEPT HIS SPEED UP AND LANDED FARTHER DOWN THE RUNWAY THAN USUAL DUE TO OTHER TRAFFIC. AFTER TOUCHDOWN HE FOUND THAT THE BRAKES HAD FAILED SO HE ATTEMPTED TO SLOW DOWN THE AIRCRAFT BY SWERVING BACK AND FORTH AND FINALLY TURNING OFF ON A TAXIWAY AT WHICH TIMETHE AIRCRAFT NOSED OVER. THE PILOT STATED THAT EXAMINATION REVEALED THAT THE MASTER CYLINDER FAILED.

## Aircraft

- Registration: [N5001Z](https://openairdocs.org/aircraft/N5001Z), registered now, S/N 22-8610 (OpenAirDocs)
- Reported make and model: PIPER PA-22-108
- Registry model: [Piper PA-22-108](https://openairdocs.org/model/piper-pa-22-108) (registry code 7102204) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 228610
- Airframe hours: 3016
- Engines: LYCOMING O-235-C1B 108 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Steven W. Hell
- Registered owner: Steven W. Hell
- Departed: CORDALLS, OR
- Destination: SNOHOMISH, WA
- Airport: S43, Harvyfield, runway 32, 2,600 × 0 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 240 total, 240 in this make and model, 220 as pilot in command, 180 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 360° at 6 knots
- Visibility: 25 statute miles
- Temperature: 99 °F
- Observed at: VMC

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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