# NTSB MIA95LA153: Piper PA-31-350, N530JB, Opa-Locka, FL, June 22, 1995 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 22, 1995, 12:12 local (16:12 UTC) - Place: Opa-Locka, FL - Coordinates: 25.909601, -80.270149 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=25.9096&lon=-80.2701&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 7 uninjured - Status: Completed, report August 31, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 37783 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA95LA153 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37783/pdf - Page: https://openairdocs.org/ntsb/MIA95LA153 ## Probable cause 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. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Wheels up landing, landing - flare/touchdown - maintenance,inspection - inadequate, other maintenance personnel (cause) - procedures/directives - not followed, other maintenance personnel (cause) - hydraulic system,line - ruptured (cause) - fluid,hydraulic - exhaustion (cause) - gear extension - not possible, pilot in command (cause) ## Analysis 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. ## 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. ## Aircraft - Registration: [N530JB](https://openairdocs.org/aircraft/N530JB), registered now, S/N 31-7952156 (OpenAirDocs) - Reported make and model: PIPER PA-31-350 - Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (registry code 7103110) (OpenAirDocs) - Category: Airplane - Serial number: 31-7952156 - Airframe hours: 3685 - Engines: LYCOMING TIO-540-J2BD 350 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Registered owner: Key Largo Air Service - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, June 1, 1995, 31 hours before - Departed: MYBG, GREAT HARBOUR, OF - Destination: TMB, MIAMI, FL - Flight plan: IFR - Airport: OPF, Opa-Locka, runway 27L, 4,306 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 68; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 38,000 total, 5,000 in this make and model, 38,000 as pilot in command, 125 in the last 90 days, 45 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 220° at 16 knots - Visibility: 10 statute miles - Lowest ceiling: 2,600 ft broken - Temperature: 86 °F, dew point 75 °F - Altimeter: 29.00 inHg - Observed at: OPF, 1 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 19950622020409A](https://openairdocs.org/incident/19950622020409A), Jun 22, 1995: Piper PA31350, Miami, FL, Substantial damage. Unable to extend gear. Landed gear up. Right main gear door hydro line broke. Original 1979 hose. Not inspected. 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.