# NTSB FTW93LA111: Cessna 182, N5520B, Washington, OK, March 26, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 26, 1993, 17:45 local (23:45 UTC)
- Place: Washington, OK
- Coordinates: 35.110881, -97.489181 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.1109&lon=-97.4892&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 21, 1998
- Report: Approved by Office Director
- NTSB case key (mKey): 18716
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW93LA111
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18716/pdf
- Page: https://openairdocs.org/ntsb/FTW93LA111

## Probable cause

LOSS OF ENGINE POWER FOR UNDETERMINED REASON(S).

## Sequence of events

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

- Loss of engine power, approach - vfr pattern - final approach
  - reason for occurrence undetermined (cause)
- Forced landing, emergency descent/landing
- On ground/water collision with object, emergency landing
  - object - hangar/airport building

## Analysis

THE AIRPLANE WAS BEING USED TO HAUL SKYDIVERS. ACCORDING TO THE PILOT, AFTER ABOUT THE THIRD OR FOURTH FLIGHT, THERE WAS A PARTIAL LOSS OF POWER, DUE TO A FUEL TANK VENT THAT HAD BEEN BLOCKED BY A MUD DAUBER NEST. THE PILOT NOTED THAT WHEN A FUEL CAP WAS REMOVED, HE HEARD A 'HISS' AS DIFFERENTIAL AIR PRESSURE WAS RELIEVED. MAINTENANCE WAS PERFORMED TO CLEAR THE VENT, THEN THE PILOT CONTINUED HAULING SKYDIVERS. AFTER SKYDIVERS EGRESSED AT 10,500 FEET DURING THE NINETH FLIGHT, THE PILOT ENTERED A SPIRALLING DESCENT TO RETURN TO THE AIRPORT. HE REPORTED THAT DURING AN APPROACH TO LAND ON THE RUNWAY, HE ATTEMPTED TO ADD POWER TO ARREST HIS DESCENT, BUT THE ENGINE DID NOT RESPOND. THE PILOT CHANGED FUEL TANKS AND ATTEMPTED TO RESTART THE ENGINE, BUT TO NO AVAIL. HE MANAGED TO FLY OVER A POND, BUT THE AIRPLANE TOUCHED DOWN SHORT OF THE THRESHOLD. THE PILOT STEERED THE AIRPLANE TO THE LEFT TO AVOID A FENCE; HOWEVER, WHILE MANEUVERING BETWEEN THE FENCE AND A HANGAR, THE AIRPLANE'S LEFT WINGTIP HIT THE HANGAR. THE AIRPLANE THEN PIVOTED INTO THE HANGAR AND WAS FURTHER DAMAGED. AFTER IMPACT, THE PILOT NOTED THAT THE LEFT FUEL TANK HAD RUPTURED AND 'FUEL WAS RUNNING' ONTO HIS NECK AND LEFT SIDE. THE TEMPERATURE AND DEW POINT WERE REPORTED TO BE 64 AND 37 DEGREES, RESPECTIVELY; ACCORDING TO ICING PROBABILITY CHARTS, CONDITIONS WERE NOT CONDUCIVE FOR CARBURETOR ICING. NO REASON WAS FOUND FOR THE LOSS OF ENGINE POWER.

## Factual narrative

On March 26, 1993, at approximately 1745 central standard time (CST), a Cessna 182, N5520B, was destroyed during landing near Washington, Oklahoma.  The commercial pilot was not injured during the visual meteorological conditions flight. Carlos M. Brannon was the registered owner.

During an interview conducted by a Federal Aviation Administration inspector the pilot and the operator revealed that the airplane had just descended from an altitude of 10,000 feet, where it dropped some sky divers.  During the approach the pilot reported that he added power at the bottom of his descent, however, the engine did not respond.  As the airplane continued its descent it struck a hangar and the airplane descended out of control to ground impact.

## Aircraft

- Registration: [N5520B](https://openairdocs.org/deregistered/N5520B-2014-04-21), registration cancelled 2014-04-21, S/N 33520, built 1956 (OpenAirDocs)
- Reported make and model: Cessna 182
- Registry model: [Cessna 182](https://openairdocs.org/model/cessna-182) (registry code 2072702) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 33520
- Engines: Continental O-470-L 230 horsepower reciprocating
- Damage: Destroyed
- Flight: Part 91
- Operator: Paradise Skydivers
- Registered owner: Brannon, Carlos
- Airworthiness certificate: Standard, Normal
- Departed: NONE
- Destination: NONE
- Airport: 390K, Paradise, runway 35, 4,000 × 150 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 505 total, 97 in this make and model, 428 as pilot in command, 63 in the last 90 days, 27 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 37 °F
- Altimeter: 30.00 inHg
- Observed at: OKC, 10 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 19930326007029A](https://openairdocs.org/incident/19930326007029A), Mar 26, 1993: Cessna 182, Goldsby, OK, Destroyed. High sink rate on final dnot timely corrected. Landed short and veered into side of a hangar.

## Other investigations on N5520B (1)

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 FTW93LA043](https://openairdocs.org/ntsb/FTW93LA043), Nov 27, 1992: Cessna 182 (N5520B), Washington, OK, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN PROPER CLEARANCE OVER THE FENCE.

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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