NTSB CAROL · Event
Event MIA95LA153
Registry · N530JB
FAA Aircraft Registry record.
Make / Model
PIPER PA-31-350
Seats / Engines
8 seats · 2 engines
Last airworthiness date
19790701
ADS-B equipped
Yes — Mode-S A6B137
Registrant of record
AIR TRANSPORT SERVICES INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
THE FAILURE OF MAINTENANCE PERSONNEL TO COMPLY WITH MANUFACTURER INSPECTION PROCEDURES FOR HYDRAULIC LINES RESULTING IN THE FAILURE OF THE RIGHT MAIN GEAR DOOR LINE AND LOSS OF ALL HYDRAULIC FLUID.
Factual narrative
On June 22, 1995, about 1212 eastern daylight time, a Piper PA-31-350, N530JB, registered to Key Largo Air Service, Inc., made a gear up landing at Opa-Locka Airport, Opa-Locka, Florida, while on a 14 CFR Part 135 nonscheduled, international, passenger flight, from Great Harbour, Bahamas, to Miami, Florida. Visual meteorological conditions prevailed at the time and a visual flight rules flight plan was filed. The aircraft received substantial damage and the commercial-rated pilot and six passengers were not injured. The flight originated from Great Harbour, on June 22, 1995, about 1010. The pilot stated the flight was scheduled to land at Kendall-Tamiami Executive Airport. While on approach to the airport he noticed the landing gear handle was in the up position and not the neutral position when he attempted lower the landing gear. The gear handle was hard to move and when he forced it to the down position nothing happened. He diverted to Opa-Locka Airport. When all attempts to extend the landing failed, he landed gear up. Maintenance personnel stated that to extend the landing gear after the gear up landing they raised the aircraft. They serviced the hydraulic reservoir and used the manual extension pump, which operated normally. Postaccident examination of the aircraft by NTSB personnel showed the right main landing gear door line was ruptured, which resulted in loss of all hydraulic fluid. After changing the door line the landing gear system operated normally. The failed right main gear-up line had a manufacturer date of 1979. The aircraft was manufactured in 1979. Piper Aircraft Corporation annual and 100-hour maintenance inspection report requires that all fuselage fluid lines should be checked for leaks at each inspection. Additionally the lines should be pressure tested after each 10 years and each 5 years there after. Aircraft logbook records show no record of the failed line being pressure tested in 1994. See attached inspection report. THE PILOT WAS UNABLE TO EXTEND THE LANDING GEAR BY THE NORMAL AND EMERGENCY EXTENSION SYSTEMS. A GEAR UP LANDING WAS MADE. AFTER THE LANDING THE HYDRAULIC RESERVOIR WAS FILLED AND THE EMERGENCY EXTENSION SYSTEM WAS USED TO EXTEND THE GEAR. THE RIGHT MAIN LANDING GEAR DOOR LINE WAS FOUND TO BE RUPTURED CAUSING LOSS OF ALL HYDRAULIC FLUID. THE FAILED DOOR LINE HAD A MANUFACTURE DATE OF 1979. THE AIRCRAFT WAS MANUFACTURED IN 1979. PIPER AIRCRAFT CORPORATION MAINTENANCE PROCEDURES REQUIRE THE LINE TO BE PRESSURE TESTED AFTER 10 YEARS IN SERVICE AND EVERY 5 YEARS THERE AFTER. THE LOGBOOK RECORDS SHOWED NO RECORD THAT THE FAILED LINE HAD BEEN PRESSURE TESTED IN 1994. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1995_MIA95LA153.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.
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