NTSB CAROL · Event
Event BFO93LA072
Registry · N47448
FAA Aircraft Registry record.
Make / Model
PIPER PA-34-200T
Year of manufacture
1977 · 16 years old at event
Engine
CONT MOTOR TSIO-360 SER (225 hp)
Seats / Engines
7 seats · 2 engines
Last airworthiness date
19770917
ADS-B equipped
Yes — Mode-S A5D2FB
Registrant of record
JIB INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
LACK OF BRAKING ACTION FROM THE RIGHT BRAKE. THE PILOT'S FAILURE TO ATTAIN THE PROPER TOUCHDOWN POINT WAS A RELATED FACTOR.
Factual narrative
On Saturday, May 8, 1993, at about 0745 eastern daylight time, N47448, a Piper PA 34 200T, owned and operated by Walter J Barrett of Circleville, New York, sustained substantial damage during landing at Simsbury Airport, Simsbury, Connecticut. Visual meteorological conditions prevailed and a VFR flight plan had been filed. The certificated commercial pilot, the sole occupant, was not injured. The airplane was substantially damaged. The personal flight was conducted under 14 CFR 91. The pilot was landing on a 2200 foot long runway. He stated that this was a normal short field landing with full flaps. He reported that upon touchdown, he retracted his flaps and proceeded to apply his brakes. According to the pilot, the left brake locked and his right brake failed. Reportedly the airplane was just out of maintenance of which 16 hours was spent bleeding the system and replacing both brake cylinders. The airplane exited the runway, and the right main gear sheared off. The pilot stated that the accident could have been prevented if the brakes and related systems were examined for leaking fixtures that allow air into the system. According to the FAA, the pilot touched down half way down the runway, and during the landing roll as he applied the brakes, the brakes locked up. There was 535 feet of skid marks on the runway, before the airplane exited the runway. THE PILOT WAS LANDING ON A 2200 FOOT LONG RUNWAY. HE STATED THAT THIS WAS A NORMAL SHORT FIELD LANDING WITH FULL FLAPS, AND UPON TOUCHDOWN HE RETRACTED HIS FLAPS AND PROCEEDED TO APPLY HIS BRAKES. HE STATED THAT HIS LEFT BRAKE LOCKED UP AND HIS RIGHT BRAKE FAILED WHICH MADE THE AIRPLANE DIFFICULT TO CONTROL. HE ALSO REPORTED THAT THE MECHANIC HAD JUST WORKED 16 HOURS BLEEDING THE BRAKE SYSTEM, AND REPLACING BOTH BRAKE CYLINDERS. THE FAA REPORTED THAT THE AIRPLANE HAD TOUCHED DOWN HALF WAY DOWN THE RUNWAY, AND THERE WAS 535 FEET OF SKID MARKS ON THE RUNWAY. THE PILOT STATED THAT THE ACCIDENT COULD HAVE BEEN PREVENTED IF THE BRAKES AND RELATED SYSTEMS WERE EXAMINED FOR LEAKING FIXTURES THAT ALLOW AIR INTO THE SYSTEM. THE AIRPLANE EXITED THE RUNWAY AND THE RIGHT MAIN GEAR SHEARED OFF. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1993_BFO93LA072.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (maintenance). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA)
From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- Semantic Scholar 2025 · Article (Applied Sciences)
Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
A New Trajectory in UAV Safety: Leveraging Reinforcement Learning for Distance Maintenance Under Wind Variations
In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Just Culture in Aviation: A Metaphorical Study on Aircraft Maintenance Students
Just Culture, a sub-dimension of safety culture, has been a prominent and debated topic in aviation safety in recent years.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Performance PRISM: A Comprehensive Framework For Performance Measurement In Aircraft Maintenance
Aircraft maintenance is governed by rigorous safety requirements and high operational complexity, demanding robust performance measurement frameworks to ensure optimal maintenance practices.
Browse the full corpus — academia portal ↗