# NTSB MIA86LA008: Piper PA-31-310, N9135Y, Opa Locka, FL, October 7, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 7, 1985, 12:16 local (16:16 UTC)
- Place: Opa Locka, FL
- Coordinates: 25.910242, -80.270149 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=25.9102&lon=-80.2701&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31536
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA86LA008
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31536/pdf
- Page: https://openairdocs.org/ntsb/MIA86LA008

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Main gear collapsed, landing - flare/touchdown
  - landing gear,gear locking mechanism - undetermined (cause)

## Analysis

THE PLT STATED THAT ON FINAL APCH AFTER LOWERING THE LANDING GEAR HE GOT AN UNSAFE GEAR LIGHT. HE THEN FLEW BY THE TWR & THE CONTROLLER STATED THAT THE GEAR APPEARED TO BE DOWN. HE THEN RECYCLED THE LANDING GEAR & RECEIVED A NORMAL GEAR DOWN INDICATION. UPON TOUCHDOWN THE RIGHT MAIN LANDING GEAR COLLAPSED & THE ACFT SLID OFF THE RWY INTO THE GRASS. POST CRASH INVESTIGATION REVEALED NO EVIDENCE OF BROKEN COMPONENTS. INSPECTION OF THE ACFT MAINT RECORDS REVEALED THE LEFT & RIGHT MAIN LANDING GEAR DOWNLOCKS HAD BEEN ADJUSTED TWO FLTS PRIOR TO THIS OCCURRENCE. ADDTIONALLY IT WAS LEARNED THAT THE RIGHT MAIN LANDING GEAR FELL INTO A HOLE WHILE THE ACFT WAS TAXIING ON THE FLT PRIOR TO THIS OCCURRECNE.

## Aircraft

- Registration: [N9135Y](https://openairdocs.org/deregistered/N9135Y-2013-05-22), registration cancelled 2013-05-22, S/N 31-182, built 1968 (OpenAirDocs)
- Reported make and model: PIPER PA-31-310
- Registry model: [Piper PA-31-310](https://openairdocs.org/model/piper-pa-31-310) (registry code 7103102) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 31-182
- Airframe hours: 5129
- Engines: LYCOMING TSI-540-A1A 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Colonial City Aviation Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, August 7, 1985, 5 hours before
- Airport: OPF, Opa-Locka, runway 9L, 8,000 × 200 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; commercial; airplane ratings: multi-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 3,315 total, 36 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 40° at 15 knots
- Visibility: 7 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 86 °F, dew point 72 °F
- Altimeter: 30.00 inHg
- Observed at: MIA

## 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 19851007054659A](https://openairdocs.org/incident/19851007054659A), Oct 7, 1985: Piper PA31, Miami, FL, Substantial damage. Right main gear collapsed on landing. No broken components found. Wheel fell into a hole during taxi for takeoff.

## Other investigations on N9135Y (1)

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.

- [NTSB CHI83IA360](https://openairdocs.org/ntsb/CHI83IA360), Aug 4, 1983: Piper PA31-310 (N9135Y), Mount Vernon, OH, incident, minor damage

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.

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