# NTSB MIA92LA133: Cessna T210L, N5123Q, Panama City, FL, June 9, 1992

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 9, 1992, 01:48 local (06:48 UTC)
- Place: Panama City, FL
- Coordinates: 30.169237, -85.669906 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.1692&lon=-85.6699&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 9, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 33098
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA92LA133
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33098/pdf
- Page: https://openairdocs.org/ntsb/MIA92LA133

## Probable cause

THE PILOT IN COMMAND'S FAILURE TO ENRICH THE MIXTURE CONTROL DURING DESCENT, RESULTING IN LOSS OF ENGINE POWER, AND HIS IMPROPER ENGINE RESTART PROCEDURE WHICH RESULTED IN HIS BEING UNABLE TO GET THE ENGINE STARTED PRIOR TO AN OFF AIRPORT LANDING.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, descent - normal
  - procedures/directives - not followed, pilot in command (cause)
  - mixture - improper use of, pilot in command (cause)
  - emergency procedure - not followed, pilot in command (cause)
  - fuel boost pump selector position - improper, pilot in command (cause)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - tree(s)
- Nose over, landing - roll

## Analysis

THE PLT SAID A DSCNT FM 21,000' TO 2500' WAS MADE AT IDLE PWR. HE STATED HE BELIEVES HE HAD PUT THE MIXTURE TO RICH DRG DSCNT. WHILE ADDING PWR TO INTERCEPT THE GLIDESLOPE, THE PROP SOUNDED AS IF IT RAN AWAY. HE CONCLUDED AN ENG FAILURE OCCURRED, PLACED THE ELEC BOOST PUMP ON HI & ATMTD A RESTART. THE ENG FIRED SVRL TIMES, BUT DID NOT START. A FORCED LNDG WAS MADE IN A TREE FARM & THE ACFT NOSED OVER. AFTER THE ACDNT, FUEL STAINS WERE FND ON THE TOPS OF EACH WING NR THE FUEL CAPS; LARGE AREAS OF DIRT UNDER THE WINGS SMELLED OF FUEL. AFTER RCVRY, A FUEL SUPPLY WAS CONNECTED; THEN THE ENG WAS STARTED; IT OPERD WITH NO EVIDENCE OF FAILURE OR MALFUNCTION. THE PROP & PROP GOVERNOR WERE INSPECTED WITH NO ABNORMALITIES FND. THE ACFT HANDBOOK STATED THE MIXTURE SHOULD BE PLACED TO RICH FOR ALL IDLE POWER DSCNTS. HANDBOOK ALSO STATED THAT WHILE RESTARTING THE ENG IN FLT, THE ELEC BOOST PUMP SHOULD BE OPERD ON HI FOR 2-3 SEC, THEN PSND TO LOW. IF LEFT ON HI, THE ENG WOULD FLOOD, WHICH WOULD BE INDCD BY THE ENG FIRING SVRL TIMES, BUT NOT STARTING.

## Aircraft

- Registration: [N5123Q](https://openairdocs.org/deregistered/N5123Q-2013-09-16), registration cancelled 2013-09-16, S/N 21059623, built 1972 (OpenAirDocs)
- Reported make and model: CESSNA T210L
- Registry model: [Cessna T210L](https://openairdocs.org/model/cessna-t210l) (registry code 2073449) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 21059623
- Airframe hours: 2067
- Engines: CONTINENTAL TSIO-520-R-CH 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Blankenship, Lewis S.
- Registered owner: Blankenship, Lewis S.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 14, 1991, 51 hours before
- Departed: ADS, ADDISON, TX
- Destination: TMB, MIAMI, FL
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; airline transport, flight engineer; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,875 total, 201 in this make and model, 2,148 as pilot in command

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 210° at 7 knots
- Visibility: 7 statute miles
- Lowest ceiling: 900 ft broken
- Temperature: 73 °F, dew point 72 °F
- Altimeter: 29.00 inHg
- Observed at: PAM, 17 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 19920609019129A](https://openairdocs.org/incident/19920609019129A), Jun 9, 1992: Cessna T210L, Panama City, FL, Substantial damage. Long let down idle power. Engine quit. No restart. Used boost but failed to then use low. Lean mixture factor.

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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