SEA99LA090

NTSB accident investigation · Piper PA-28-140 · Zillah, WA · June 19, 1999

Accident · No injuriesLimited investigationFinal report
Date
June 19, 1999, 08:15 local (15:15 UTC)
Place
Zillah, WA
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9887WPiper PA-28-140
Weather
Visual (VMC) · Day
Status
Completed · report March 31, 2000
Report
Approved by Office Director
Case key
46650

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The pilot's selection of unsuitable terrain for landing adjacent to the runway. Factors include sun glare encountered at the time of the landing attempt.

Analysis

The pilot noted that the winds were calm at his destination airstrip. He approached to the east, into the morning sun, in order to land upslope on the grass airstrip. He said he positioned the plane in the center of the light green fresh mowed area, which he learned after landing was not all runway. He stated that the sun was in his eyes on final approach, obscuring details of the landing area. He touched down about 250 feet from the approach end with full flaps and a touch of power, using standard soft field techniques. The airplane slid down the side slope to the left and would not respond to right rudder inputs, until the left wing contacted a large wooden fence post and about four feet of the left wingtip separated. He stated that the day before the flight he obtained an airport briefing from a local pilot familiar with the airport. Sun azimuth at the time of the accident was 109.9; elevation was 49.4 degrees.

Factual narrative

On June 19, 1999, approximately 0815, a Piper PA-28-140, N9887W, sustained substantial damage during landing at Zillah, Washington. The commercial pilot and his two passengers were uninjured. No flight plan was filed for the flight, which initiated at Prosser, Washington, about 20 minutes earlier. Visual meteorological conditions prevailed at the time of the accident. There was no fire, and no report of an ELT actuating.

In a written report, the pilot noted that the winds were calm. He approached to the east, into the morning sun, in order to land upslope on the grass airstrip. He said he positioned the plane in the center of the light green fresh mowed area, which he learned after landing was not all runway. He stated that the sun was in his eyes on final approach, obscuring details of the landing area. He touched down about 250 feet from the approach end with full flaps and a touch of power, using standard soft field techniques. The airplane slid down the side slope to the left and would not respond to right rudder inputs, until the left wing contacted a large wooden fence post and about four feet of the left wingtip separated. He stated that the day before the flight he obtained an airport briefing from a local pilot familiar with the airport. Sun azimuth at the time of the accident was 109.9; elevation was 49.4 degrees.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

On ground/water collision with objectLanding
Light condition - sunglareFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause

Aircraft

Registration
N9887W
Reported as
Piper PA-28-140
Category
Airplane
Serial number
28-23407
Airframe hours
5,114
Engine
Lycoming O-320-E2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Cormac C. Thompson
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 28, 1999 · 24 hours before
Departed
S40 · Prosser, WA
Destination
68WA
Airport
68WA · Mcmahon, runway 9, 2,000 × 60 ft, grass/turf

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
66
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
6,000 total · 171 in this make and model · 5,700 as pilot in command · 126 in the last 90 days · 41 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
25 statute miles
Lowest ceiling
None
Temperature
64 °F