# NTSB IAD99LA050: Boeing Stearman PT17, N61467, Lock Haven, PA, June 25, 1999 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: June 25, 1999, 10:00 local (14:00 UTC) - Place: Lock Haven, PA - Coordinates: 41.129058, -77.449539 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.1291&lon=-77.4495&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report June 21, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 46705 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD99LA050 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46705/pdf - Page: https://openairdocs.org/ntsb/IAD99LA050 ## 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 In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, cruise - object - wire,transmission - in-flight planning/decision - improper, pilot in command (cause) - visual lookout - inadequate, pilot in command (cause) - altitude - inadequate, pilot in command (cause) - Loss of control - in flight, descent - uncontrolled - In flight collision with terrain/water, descent - 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](https://openairdocs.org/aircraft/N61467), registered now, S/N 75-1362, built 1941 (OpenAirDocs) - Reported make and model: Boeing Stearman PT17 - Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs) - Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 75-1362 - Airframe hours: 3640 - Engines: 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 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 43; 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 (OpenAirDocs). - [Accident 19990625007739A](https://openairdocs.org/incident/19990625007739A), Jun 25, 1999: Boeing PT17, Lock Haven, PA, Destroyed. Acft struck a telephone line while flying over a river, and the acft crashed into the river and was destroyed, other circumstances are unknown. (-23) on… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.