# NTSB FTW84LA031: Cessna 172RG, N5092U, Monticello, AR, October 25, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 25, 1983, 17:30 local (22:30 UTC)
- Place: Monticello, AR
- Coordinates: 33.620361, -91.790122 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.6204&lon=-91.7901&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21189
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84LA031
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21189/pdf
- Page: https://openairdocs.org/ntsb/FTW84LA031

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - lubricating system - leak (contributing factor)
  - fluid,oil - fumes (contributing factor)
  - electrical system - other
  - alternator - not used, pilot in command
- Main gear collapsed, landing - roll
  - not possible, pilot in command
  - precautionary landing - performed, pilot in command
  - landing gear,main gear - unlocked (cause)
  - gear extension - not attained, pilot in command (cause)

## Analysis

DURING FLT, THE PLT DETECTED SMOKE IN THE CABIN. THINKING THAT AN ELECTRICAL MALFUNCTION WAS THE SOURCE, HE SECURED THE ELECTRICAL MASTER SWITCH & USED THE BATTERY. A PRECAUTIONARY LANDING WAS MADE AT MONTICELLO, AR. DURING THE LANDING, THE RIGHT MAIN GEAR COLLAPSED SHORTLY AFTER TOUCHDOWN. AN INVESTIGATION REVEALED THAT THE ENG & ELECTRICAL SYS OPERATED NORMALLY. THE SOURCE OF THE SMOKE WAS FROM ENG OIL LEAKING ON A HOT EXHAUST STACK.

## Aircraft

- Registration: [N5092U](https://openairdocs.org/deregistered/N5092U-1988-07-25), registration cancelled 1988-07-25, S/N 172RG0226 (OpenAirDocs)
- Reported make and model: CESSNA 172RG
- Registry model: [Cessna 172RG](https://openairdocs.org/model/cessna-172rg) (registry code 2072438) (OpenAirDocs)
- Category: Airplane
- Serial number: 172RG0226
- Airframe hours: 1463
- Engines: LYCOMING O-350-F1A6 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Spa Flyiig Service Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, October 11, 1983, 10 hours before
- Departed: HOT, HOT SPRINGS, AR
- Destination: MOBILE, AL
- Airport: M76, Monticello, runway 3, 3,820 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, unknown; seat: left; flight hours: 588 total, 70 in this make and model, 122 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none

## 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 19831025055579A](https://openairdocs.org/incident/19831025055579A), Oct 25, 1983: Cessna 172RG, Monticello, AR, Substantial damage. Gear collapsed during landing. Pilot had shut down electrical system because of suspected problems.

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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