# NTSB LAX91LA199: Cessna 182, N4996D, Phoenix, AZ, May 6, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 6, 1991, 00:18 local (07:18 UTC)
- Place: Phoenix, AZ
- Coordinates: 33.679561, -112.089256 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.6796&lon=-112.0893&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 27, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27195
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX91LA199
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27195/pdf
- Page: https://openairdocs.org/ntsb/LAX91LA199

## Probable cause

THAT THE PILOT FAILED TO PROPERLY PREFLIGHT THE AIRPLANE TO ASSURE THE ENGINE CONTAINED AN ADEQUATE OIL SUPPLY. CONTRIBUTING TO THIS ACCIDENT WAS TOTAL FAILURE OF THE CONNECTING ROD DUE TO LACK OF LUBRICATION.

## 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, descent - normal
  - fluid,oil - exhaustion (contributing factor)
  - engine assembly,connecting rod - failure,total (contributing factor)
  - aircraft preflight - improper, pilot in command (cause)
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown
  - terrain condition - residential area

## Analysis

THE PILOT CONTACTED PHX APPROACH CONTROL AND REQUESTED AND RECEIVED RADAR ADVISORIES TO DEER VALLEY AIRPORT (DVT). WHEN THE FLIGHT WAS ABOUT 7 MILES WEST OF DVT RADAR ADVISORIES WERE TERMINATED.  MOMENTS LATER THE PILOT REPORTED THAT THE COCKPIT WAS FILLED WITH SMOKE AND HE WAS GOING TO LAND ON A ROAD. EXAMINATION OF THE ENGINE DISCLOSED THAT THE NO. 4 CONNECTING ROD FAILED DUE TO LACK OF LUBRICATION. THE INTACT ENGINE OIL SUMP DID NOT CONTAIN ANY OIL NOR WAS THERE  EVIDENCE OF OIL STAINS ON THE AIRPLANE'S FUSELAGE OR WINGS.

## Aircraft

- Registration: [N4996D](https://openairdocs.org/deregistered/N4996D-2014-10-14), registration cancelled 2014-10-14, S/N 51096, built 1958 (OpenAirDocs)
- Reported make and model: CESSNA 182
- Registry model: [Cessna 182A](https://openairdocs.org/model/cessna-182a) (registry code 2072704) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 51096
- Airframe hours: 2752
- Engines: CONTINENTAL O-470-L 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Emmet B. Nutter
- Registered owner: Emmet B. Nutter
- Last inspection: Annual, December 6, 1990, 206 hours before
- Departed: WJF, LANCASTER, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 500 total, 10 in this make and model, 500 as pilot in command, 30 in the last 90 days, 30 in the last 30 days

## Weather

- Conditions: Visual (VMC), Night/bright
- Wind: 300° at 3 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 77 °F, dew point 27 °F
- Altimeter: 29.00 inHg
- Observed at: PHX, 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).

- [Accident 19910506017929A](https://openairdocs.org/incident/19910506017929A), May 6, 1991: Cessna 182A, Phoenix, AZ, Substantial damage. Engine threw a rod and cockpit filled with smoke. Crash landed. No oil found in engine and no oil stains.

## Other investigations on N4996D (3)

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 MIA71DKW19](https://openairdocs.org/ntsb/MIA71DKW19), Nov 7, 1970: Cessna 182 (N4996D), Madisonville, TN, substantial damage
- [NTSB CHI68D0659](https://openairdocs.org/ntsb/CHI68D0659), Mar 17, 1968: Cessna 182 (N4996D), Harlan, KY, substantial damage
- [NTSB UNK65X0787](https://openairdocs.org/ntsb/UNK65X0787), Nov 22, 1964: Cessna 182A (N4996D), Pikesville, KY, no damage, 1 fatal

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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