# NTSB SEA91LA152: Cessna 172N, N737BZ, Waldron, WA, July 3, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 3, 1991, 09:40 local (16:40 UTC)
- Place: Waldron, WA
- Coordinates: 48.690116, -123.030815 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.6901&lon=-123.0308&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 24, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41467
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA152
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41467/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA152

## Probable cause

VISUAL LOOKOUT WAS NOT MAINTAINED, AND DIVERTED ATTENTION.

## Sequence of events

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

- On ground/water collision with object, taxi - from landing
  - object - tree(s)
  - diverted attention, pilot in command (cause)
  - visual lookout - not maintained, pilot in command (cause)

## Analysis

WHILE TAXIING AFTER LANDING, THE PILOT'S ATTENTION WAS ON THE PASSENGER DROP OFF AREA, WHEN THE RIGHT WING COLLIDED WITH A TREE ALONG THE SIDE OF THE RUNWAY.

## Aircraft

- Registration: [N737BZ](https://openairdocs.org/deregistered/N737BZ-1992-06-11), registration cancelled 1992-06-11, S/N 17269303 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Category: Airplane
- Serial number: 17269303
- Engines: LYCOMING O-320-D2J 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: West Isle Air, Inc
- Registered owner: West Isle Air, Inc
- Departed: ORS, ORCAS, WA
- Airport: NONE, Waldron, runway 18, 2,000 × 100 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; flight instructor, commercial; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 744 total, 100 in this make and model, 634 as pilot in command, 106 in the last 90 days, 56 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °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 19910703025979A](https://openairdocs.org/incident/19910703025979A), Jul 3, 1991: Cessna 172N, Waldron, WA, Substantial damage. Wing struck a tree while back taxiing after landing. Failed to watch wing tip clearance on narrow Private strip.

## Other investigations on N737BZ (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 SEA79DYM05](https://openairdocs.org/ntsb/SEA79DYM05), Nov 1, 1978: Cessna 172 (N737BZ), Portland, OR, 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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