IAD99LA050

NTSB accident investigation · Boeing Stearman PT17 · Lock Haven, PA · June 25, 1999

Accident · Serious injuriesLimited investigationFinal report
Date
June 25, 1999, 10:00 local (14:00 UTC)
Place
Lock Haven, PA
Injuries
1 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N61467Boeing Stearman PT17
Weather
Visual (VMC) · Day
Status
Completed · report June 21, 2000
Report
Approved by Office Director
FAA report
19990625007739A
Case key
46705

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 improper inflight decision to fly at an inadequate altitude and his improper visual lookout which resulted in a collision with wires.

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.

In flight collision with objectCruise
Object - wire,transmission
In-flight planning/decision - improperPilot in commandCause
Visual lookout - inadequatePilot in commandCause
Altitude - inadequatePilot in commandCause
Loss of control - in flightDescent - uncontrolled
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot stated that while in cruise flight, above a river, the airplane 'apparently struck an unseen object and departed controlled flight.' He thought the object was an unmarked cable that ran across the river. He had noticed these cables on previous flights because they were usually marked with orange balls. The pilot stated there were no mechanical deficiencies that may have led to the accident. A witness observed the aircraft pitch up, roll hard to the left, impact the ground 'straight up and down', and catch fire. An FAA Inspector reported there were telephone wires 50-150 feet high across the river.

Factual narrative

On June 25, 1999, about 1000 eastern daylight time, a Boeing Steerman PT-17, N61467, was destroyed as it impacted the water while flying near Lock Haven, Pennsylvania. The certificated airline transport pilot received serious injuries. Visual meteorological conditions existed and no flight plan was filed for the personal local flight conducted under 14 CFR Part 91.

In a written statement, the pilot said he performed a "normal departure" from the Lock Haven Airport (LHV) and after a 20 minute local flight, he decided to return to the airport through a valley northwest of the airport. The pilot stated that while he was flying, the airplane "apparently struck an unseen object and departed controlled flight." In a telephone interview, the pilot stated that he thought the object was an unmarked cable that ran across the river. He said he had noticed these cables on previous flights because they were usually marked with orange balls. The pilot further stated that he was "not aware of any mechanical deficiencies that may have lead to the accident."

In a telephone interview, a witness stated that he was flying his own airplane above, behind, and to the left of the accident airplane. The witness said he saw the accident airplane "pitch up and roll hard to the left." He stated that as it rolled left the airplane changed direction rapidly. The witness said the airplane impacted the river "straight up and down" and caught fire. He saw the pilot depart the airplane from the left side as the fire reached the right side of the cockpit.

According to a Federal Aviation Administration (FAA) Inspector, there were telephone wires across the river that were 50 -150 feet high. An FAA inspector who visited the accident site reported there was nothing left of the completely burnt airplane.

The pilot possessed a first class medical and reported 14,600 hours of total flight experience.

Aircraft

Registration
N61467
Reported as
Boeing Stearman PT17
Category
Airplane
Serial number
75-1362
Airframe hours
3,640
Engine
Continental W670, 250 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Tim Roy Bronson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 12, 1999 · 8 hours before
Departed
LHV · PA

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
43
Certificates
Flight instructor, Airline transport, Flight engineer
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
14,600 total · 370 in this make and model · 9,000 as pilot in command · 42 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 5 knots
Visibility
20 statute miles
Lowest ceiling
12,000 ft overcast
Temperature
70 °F, dew point 57 °F
Altimeter
30.00 inHg
Observed at
UNV, 26 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.