ATL85LA024

NTSB accident investigation · Piper PA-25-235 · Lincoln, TN · October 30, 1984

Accident · No injuriesLimited investigationFinal report
Date
October 30, 1984, 15:45 local (21:45 UTC)
Place
Lincoln, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9855PPiper PA-25-235
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19841030061349A
Case key
6698

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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Analysis

The acft was making a swath run spraying crops when the engine suddenly lost power with 200 yards of level field remaining for an emergency landing. After touchdown the plt turned the acft to avoid a collision with trees. During the turn the nose of the acft dug into the ground causing the acft to nose over. Inspection of the engine revealed that the magneto coupling was locked and would not rotate. Further inspection disclosed excessive play in the pawls and worn striker pins and shaft splines. According to the acft logbooks, AD 78-09-07 & AD 82-20-01 had been complied with, 19 flt hours prior to the acident. However, the make, model, & serial number of the magnetos were not enterd as required.

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 engine power(total) - mech failure/malfManeuvering - aerial application
Maintenance - improperOther maintenance personnelCause
Maintenance,compliance with ad - improperOther maintenance personnel
Maintenance,recordkeeping - poorOther maintenance personnel
Ignition system,magneto - wornCause
Ignition system,magneto - jammedCause
Forced landingDescent - emergency
Nose overLanding
Terrain condition - high obstruction(s)Factor
Terrain condition - cropFactor

Aircraft

Registration
N9855P
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-7556179
Engine
Lycoming O-540-B2B5, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Miller L. Jones
Registered owner
Ag-Air Of Tennessee Valey
Airworthiness certificate
Standard, Normal
Departed
Hazel Green, AL

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
35
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
3,755 total · 894 in this make and model · 17 in the last 90 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 5 knots
Visibility
20 statute miles
Lowest ceiling
3,000 ft broken
Temperature
81 °F, dew point 61 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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