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NTSB Report
October 24, 2011 · Air Tractor AT-301 · N3169C
Mcalpin, FL
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
October 24, 2011
Injury Outcomes
No injuries (1 uninjured)
Location
Mcalpin, FL
Aircraft
Air Tractor AT-301
Tail Number
N3169C
Operator
Terrys Ag Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ERA12CA050
According to the pilot, he had successfully completed six aerial application passes below transmission lines that ran diagonally above a rectangular agricultural field. The pilot had also successfully completed 11 or 12 similar application flights over the same field during previous years, including 1 earlier that month. As the pilot turned the airplane toward its seventh pass, sun position and spray residue on the windshield resulted in his briefly losing sight of the transmission lines. The pilot regained sight of the transmission lines and continued the pass; however, the airplane struck the lines, damaging the wing spar. The pilot did not report any preexisting mechanical anomalies with the airplane.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Incorrect use/operation - C
Full Narrative
According to the pilot, he had successfully completed six aerial application passes below transmission lines that ran diagonally above a rectangular agricultural field. The pilot had also successfully completed 11 or 12 similar application flights over the same field during previous years, including 1 earlier that month. As the pilot turned the airplane toward its seventh pass, sun position and windshield spray residue resulted in his briefly losing sight of the transmission lines. The pilot subsequently regained sight of the transmission lines and continued the pass; however, the airplane struck the lines, damaging the wing spar, before returning to the originating airport. The pilot did not report any preexisting mechanical anomalies with the airplane.
Flight
Event TypeAccident
Event Time12:10 EDT
Nearest Airport7nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAir Tractor AT-301
Tail NumberN3169C
Aircraft CategoryAir
DamageSubstantial
OperatorTerrys Ag Service
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R1340 SERIES · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 60 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind330° @ 3 kt
CeilingNone
Temperature / Dew Point61 F / 48
Altimeter30.15 inHg
Observation Time15:53
Weather SourceWFAC