# NTSB MIA87LA115: Cessna T210N, N9504Y, Oxford, MS, March 21, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: March 21, 1987, 16:30 local (22:30 UTC)
- Place: Oxford, MS
- Coordinates: 34.350315, -89.520347 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.3503&lon=-89.5203&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report May 2, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 31880
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA87LA115
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31880/pdf
- Page: https://openairdocs.org/ntsb/MIA87LA115

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, approach - vfr pattern - final approach
  - fuel system,pump - pressure excessive (cause)
- Forced landing, descent
- In flight collision with object, descent
  - object - tree(s)
  - unsuitable terrain or takeoff/landing/taxi area - inadvertent, pilot in command
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

DURING FINAL APCH THE ENG QUIT. THE PLT THEN ATTEMPTED TO LAND THE ACFT ON A ROAD, DURING WHICH, IT COLLIDED WITH TREES. INSPECTION OF THE ACFT REVEALED THAT THE ADJUSTING SCREW ON THE ENG DRIVEN FUEL PUMP BACKED OUT APRX 8 TURNS. BENCH TEST OF THE PUMP REVEALED THAT THE FUEL FLOW FROM THE OUTLET WAS HIGHER THAN THE LIMITS SPECIFIED BY THE MANUFACTURER DUE TO THE COUNTER-CLOCKWISE ROTATION OF THE SCREW. ACCORDING TO A FAA INSPECTOR THE ENGINE COULD POSSIBLY QUIT IF THE MIXTURE CONTROL WERE PLACED IN THE FULL RICH POSITION AS IS THE CASE DURING APCH, DUE TO EXCESSIVE FUEL.

## Aircraft

- Registration: N9504Y (not matched to a registry record)
- Reported make and model: CESSNA T210N
- Category: Airplane
- Serial number: 21064527
- Airframe hours: 734
- Engines: CONTINENTAL TSIO-520-R 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Radiology Assn. Of Oxford
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 15, 1986
- Departed: 71J, OZARK, AL
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 4,655 total, 37 in this make and model, 316 as pilot in command, 8 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 48 °F
- Altimeter: 29.00 inHg
- Observed at: MEM, 46 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 19870321007249A](https://openairdocs.org/incident/19870321007249A), Mar 21, 1987: Cessna T210N, Oxford, MS, Substantial damage. The engine failed on final and the aircraft hit trees. The aneroid adjusting screw had backed out on fuel pump.

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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