SEA03LA134

NTSB accident investigation · Archer S-18T · Arlington, WA · July 11, 2003

Accident · No injuriesLimited investigationFinal report
Date
July 11, 2003, 14:55 local (21:55 UTC)
Place
Arlington, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N102PMArcher S-18T
Weather
Visual (VMC) · Day
Status
Completed · report November 25, 2003
Report
Approved by Office Director
Parties
Seattle FSDO
FAA report
20030711015759A
Case key
57459

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 pilot's failure to maintain an airspeed above Vs (stalling speed) while making a close-in base-to-final turn.

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.

Loss of control - in flightApproach - vfr pattern - base leg/base to final
Airspeed(vs) - not maintainedPilot in commandCause
Stall/mush - inadvertentPilot in command
In flight collision with terrain/waterApproach - vfr pattern - base leg/base to final
Terrain condition - runway

Analysis

The pilot, who was arriving at Arlington less than ten minutes prior to the time the field was to be closed for an air show, was instructed by the tower to turn base early in order to sequence him in front of an aircraft he was in trail of. Although he was instructed to turn base early so that he could land adjacent to a set of cones set near mid-field, the pilot did not see the cones most of the time he was on base leg. He said that while on base he did not see the cones until the last minute, and when he did, he initiated his turn to final. At the point he started the turn, he was approximately 50 feet above the surface, and because he was so close to the runway, he steepened his turn to near 60 degrees. During the turn the airplane stalled and rolled to a position where the wings where 90 degrees to the ground. The pilot then released back pressure, applied corrective rudder and aileron, and was able to get the wings level, but almost immediately thereafter the aircraft impacted the surface of the runway with sufficient force to result in substantial damage.

Factual narrative

On July 11, 2003, approximately 1455 Pacific daylight time, an experimental Archer S-18T, N102PM, impacted the surface of the runway during a low-level base-to-final turn at Arlington Municipal Airport, Arlington, Washington. The private pilot and his passenger were not injured, but the aircraft, which is owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personal pleasure flight, which departed Scappoose Industrial Airport, Scappoose, Oregon, about 55 minutes earlier, was being operated in visual meteorological conditions. No flight plan had been filed. There was no report of an ELT activation.

According to the pilot, who was arriving at Arlington less than ten minutes prior to the time the field was to be closed for an air show, the tower instructed him to turn base early in order to sequence him in front of an aircraft he was in trail of. Although he was instructed to turn base early so that he could land adjacent to a set of cones set near mid-field, the pilot did not see the cones most of the time he was on base leg. He said that while on base he did not see the cones until the last minute, and when he did, he initiated his turn to final. At the point he started the turn, he was approximately 50 feet above the surface, and because he was so close to the runway, he steepened his turn to near 60 degrees of bank. During the turn the airplane stalled and rolled to a position where the wings where 90 degrees to the ground. The pilot then released back pressure, applied corrective rudder and aileron, and was able to get the wings level, but almost immediately thereafter the aircraft impacted the surface of the runway with sufficient force to result in substantial damage.

Aircraft

Registration
N102PM
Reported as
Archer S-18T
Category
Airplane, amateur-built
Serial number
001
Airframe hours
34
Engine
Lycoming O-360-C1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Michael Archer
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 1, 2003 · 6 hours before
Departed
SPB · Scappoose, OR
Destination
AWO · Arlington, WA
Airport
AWO · Arlington Municipal, runway 34, 5,333 × 100 ft, asphalt

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
62
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
December 21, 2002
Seat
Left
Flight hours
1,071 total · 34 in this make and model · 1,035 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 5 knots
Lowest ceiling
None
Temperature
79 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.