# NTSB MIA86IA017: Cessna 402C, N67876, Miami, FL, October 25, 1985

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: October 25, 1985, 08:50 local (12:50 UTC)
- Place: Miami, FL
- Coordinates: 25.820835, -80.299537 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=25.8208&lon=-80.2995&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 31517
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA86IA017
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31517/pdf
- Page: https://openairdocs.org/ntsb/MIA86IA017

## Sequence of events

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

- Gear not extended, landing - roll
  - landing gear,gear indicating system - false indication (contributing factor)
  - electrical system,electric wiring - disconnected (cause)

## Analysis

THE PLT STATED THAT HE MADE A NORMAL APCH TO RWY 12 BUY ON LANDING ROLLOUT AS THE NOSE OF THE ACFT TOUCHED DOWN THE NOSE GEAR ASS'Y FOLDED & THE ACFT SLID TO A STOP, POST CRASH EXAMINATION OF THE ACFT REVEALED THAT THE GREEN LIGHT FOR THE NOSE GEAR REMAINED ON REGARDLESS OF THE LANDING GEAR POSITION DUE TO A BROKEN LEAD WIRE ON THE # 5 POLE OF THE NOSE LANDING GEAR POSITION MICRO SWITCH, THIS MICRO SWITCH ALSO ACTIVATES THE HYDRAULIC PRESSURE WHICH HOLDS THE GEAR IN THE LOCKED POSITION, THEREFORE THE PLT OBTAINED A DOWN AND LOCKED INDICATION WITH THE GEAR NOT ACTUALLY LOCKED IN THE DOWN POSITION.

## Aircraft

- Registration: [N67876](https://openairdocs.org/deregistered/N67876-1990-03-19), registration cancelled 1990-03-19, S/N 402C0424 (OpenAirDocs)
- Reported make and model: CESSNA 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (registry code 207590R) (OpenAirDocs)
- Category: Airplane
- Serial number: 402CO424
- Airframe hours: 3892
- Engines: CONTINENTAL TSIO-520-VB 325 horsepower reciprocating
- Damage: Minor damage
- Flight: Part 135
- Operator: Gull Air,Inc.
- Registered owner: Allen F. Jones
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 24, 1985, 5 hours before
- Departed: PBI, WEST PALM BCH, FL
- Airport: MIA, Miami, runway 12, 9,600 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; flight instructor, airline transport, commercial, private; airplane ratings: multi-engine land, single-engine sea, multi-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 3,675 total, 1,005 in this make and model, 1,000 as pilot in command, 277 in the last 90 days, 42 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 11 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 66 °F
- Altimeter: 29.00 inHg
- Observed at: MIA, 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).

- [Incident 19851025059419I](https://openairdocs.org/incident/19851025059419I), Oct 25, 1985: Cessna 402C, Miami, FL, Minor damage. Broken lead wire to nose gear microswitch prevented hydraulic pressure to lock gear down. Nose gear collapsed.

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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