SEA85FA208

NTSB accident investigation · Piper PA-25-235 · Wenatchee, WA · September 7, 1985

Accident · FatalField investigationFinal report
Date
September 7, 1985, 09:50 local (16:50 UTC)
Place
Wenatchee, WA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N7340ZPiper PA-25-235
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850907064299A
Case key
40060

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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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 flightManeuvering - aerial application
In-flight planning/decision - improperPilot in commandFactor
Overconfidence in personal abilityPilot in commandFactor
Terrain condition - risingFactor
Clearance - misjudgedPilot in commandFactor
Load jettison - performed
Aircraft handling - not maintainedPilot in commandCause
Stall/mush - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

After two application runs, plt apparently attempted to shorten the race-track pattern by initiating the inbound turn into a canyon. Acft was observed to climb clear of the canyon wall near completion of turn, but load was jettisoned at this point and the acft descended sharply into a second, narrow canyon just short of the object crop, which was situated on a plateau, and impacted terrain, intense ground fire subsequently consumed non-mettaliic structure of the acft. Investigation revealed the acft impacted with high vertical forces and little forward momentun. No evidence was found of any malfunction or failure in the acft structure, systems or powerplant.

Aircraft

Registration
N7340Z
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-3290
Airframe hours
1,261
Engine
Lycoming O-540-B2B5, 235 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Registered owner
Inland Air Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 1, 1985 · 118 hours before

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
37
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Toxicology
Performed
Flight hours
6,621 total · 670 in this make and model · 6,332 as pilot in command · 70 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 5 knots
Visibility
30 statute miles
Lowest ceiling
8,000 ft broken
Temperature
57 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
EAT, 6 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.