# NTSB MIA88LA208: Cessna 150M, N704MN, Davisville, FL, June 27, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 27, 1988, 13:05 local (18:05 UTC)
- Place: Davisville, FL
- Coordinates: 30.859375, -87.459121 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.8594&lon=-87.4591&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 9, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 32200
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA88LA208
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32200/pdf
- Page: https://openairdocs.org/ntsb/MIA88LA208

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - maintenance - not performed, pilot in command (contributing factor)
  - aircraft preflight - inadequate, pilot in command (contributing factor)
  - operation with known deficiencies in equipment - performed, pilot in command (cause)
  - fluid,fuel - starvation (cause)
  - fluid,fuel grade - improper (cause)
  - fuel system - overtemperature (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - landing gear,nose gear - overload
  - landing gear,nose gear - separation

## Analysis

ACFT'S ENGINE HAD OVER 200 RPM DROP ON ONE MAGNETO DURING RUNUP. PLT ATTEMPTED TO TAKEOFF WITH THE ENGINE RUNNING ROUGH. AFTER LIFTOFF THE ENGINE BEGAN TO BACKFIRE AND LOSE POWER. THE PLT STATED HE THEN APPLIED CARBURETOR HEAT AND PUMPED THE ENGINE PRIMER. SHORTLY AFTER THIS THE ENGINE QUIT COMPLETELY. WITNESSES STATED THAT SHORTLY AFTER THE ENGINE BEGAN TO BACKFIRE AND LOSE POWER IT BEGAN TO PUFF HEAVY BLACK SMOKE. SHORTLY AFTER THIS THE ENGINE QUIT COMPLETELY. THE CAUSE FOR THE ROUGH RUNNING ENGINE AND INITIAL LOSS OF POWER COULD NOT BE FOUND AFTER THE ACCIDENT. THE AIRCRAFT WAS BEING OPERATED ON AUTOGAS AND THE AIRCRAFT'S LOGBOOK SHOWED NO INDICATION THAT AN STC HAD BEEN COMPLIED WITH ALLOWING USE OF AUTOGAS. THE ACFT NOSED OVER DURING THE FORCED LNDG.

## Aircraft

- Registration: [N704MN](https://openairdocs.org/deregistered/N704MN-1991-01-30), registration cancelled 1991-01-30, S/N 15078721 (OpenAirDocs)
- Reported make and model: CESSNA 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Category: Airplane
- Serial number: 15078721
- Airframe hours: 2555
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Hare, Argent K
- Registered owner: Argent K Harf
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 11, 1987, 70 hours before
- Airport: NONE, Parkers Flying Service

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 40 total, 11 in this make and model, 13 as pilot in command, 3 in the last 90 days, 1 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 12 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 95 °F, dew point 75 °F
- Altimeter: 29.00 inHg
- Observed at: PNS, 30 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 19880627057029A](https://openairdocs.org/incident/19880627057029A), Jun 27, 1988: Cessna 150M, Davisville, FL, Substantial damage. Excessive mag drop both mags. Took off anyway. Engine quit on climbout. Nosed over landing. Illegally used auto gas

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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