# NTSB MIA87LA136: Cessna 172N, N6328D, Big Pine Key, FL, April 9, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 9, 1987, 19:45 local (23:45 UTC)
- Place: Big Pine Key, FL
- Coordinates: 24.669155, -81.35041 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=24.6692&lon=-81.3504&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 10, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 31894
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87LA136
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31894/pdf
- Page: https://openairdocs.org/ntsb/MIA87LA136

## Sequence of events

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

- Loss of engine power, cruise
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - utility pole(marked)

## Analysis

THE PLT STATED THAT DURING CRUISE FLT THE ENG BEGAN TO RUN ROUGH. HE THEN ATTEMPTED TO SOLVE THE PROBLEM TO NO AVAIL. UNABLE TO MAINTAIN ALT HE ELECTED TO LAND THE ACFT ON A ROAD. WHILE TAXIING, BOTH WINGS COLLIDED WITH STREET SIGNS. POST CRASH EXAMINATION OF THE ACFT REVEALED NO EVIDENCE OF PRE-IMPACT FAILURE OR MALFUNCTION.

## Aircraft

- Registration: [N6328D](https://openairdocs.org/deregistered/N6328D-2021-07-06), registration cancelled 2021-07-06, S/N 17272718, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17272718
- Airframe hours: 3896
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Savco Flying
- Registered owner: Protect All Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, February 14, 1987, 63 hours before
- Departed: EYW, KEY WEST, FL
- Destination: HWO, HOLLYWOOD, FL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 280 total, 50 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 70 °F, dew point 61 °F
- Altimeter: 29.00 inHg
- Observed at: EYW, 24 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 19870409011969A](https://openairdocs.org/incident/19870409011969A), Apr 9, 1987: Cessna 172N, Big Pine Key, FL, Substantial damage. The engine lost power for undetermined cause. The pilot safely landed the aircraft on a road. Hit signs during taxi

## Other investigations on N6328D (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 WPR20LA212](https://openairdocs.org/ntsb/WPR20LA212), Jul 7, 2020: Cessna 172 (N6328D), Lake Tahoe, CA, destroyed, 2 fatal. Probable cause: The partial loss of engine power due to carbon buildup in the No. 4 cylinder resulting from the pilot’s inadequate mixture-leaning procedures.

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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