# NTSB ATL86LA191: Cessna 337F, N1770M, Cherry Point, NC, July 4, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 3, 1986, 20:10 local (Jul 4, 1986, 00:10 UTC)
- Place: Cherry Point, NC
- Coordinates: 34.899044, -76.900108 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.8990&lon=-76.9001&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): 7144
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL86LA191
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/7144/pdf
- Page: https://openairdocs.org/ntsb/ATL86LA191

## Sequence of events

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

- Airframe/component/system failure/malfunction, climb - to cruise
  - landing gear - other (cause)
  - unsafe/hazardous condition warning - disregarded, pilot in command (cause)
  - maintenance,inspection - not performed, pilot in command (cause)
  - warning system(other) - disabled
  - operation with known deficiencies in equipment - intentional, pilot in command (cause)
  - preflight planning/preparation - poor, pilot in command (cause)
- In flight collision with terrain/water, landing - flare/touchdown
  - wheels up landing - performed, pilot in command
  - gear extension - not possible, pilot in command (cause)
- Nose over, landing - roll

## Analysis

WHEN THE GEAR SELECTOR HANDLE WAS PLACED IN THE UP POSITION THE GEAR UNSAFE WARNING HORN SOUNDED. THE PLT REPORTED A STALL WARNING HORN TO ATC AND RETURNED TO THE AIRPORT AND LANDED. FINDING NOTHING WRONG WITH THE AIRCRAFT THE PLT. TOOK-OFF AGAIN. WHENTHE HORN AGAIN CAME ON HE AND ONE OF HIS PASSENGERS TOOK TURNS HOLDING THE TEST BOTTON IN TO KEEP THE HORN SILENT. FINALLY THEY PUT A PIECE OF PAPER UNDER THE BOTTON, THAT STOPPED THE HORN. THE LANDING GEAR WOULD NOT EXTEND NORMALLY WITH THE ALTERNATE/EMERGENCY SYSTEMS. A GEAR UP LANDING WAS MADE ON GRASS.

## Aircraft

- Registration: [N1770M](https://openairdocs.org/deregistered/N1770M-1989-01-04), registration cancelled 1989-01-04, S/N 33701370 (OpenAirDocs)
- Reported make and model: CESSNA 337F
- Registry model: [Cessna 337F](https://openairdocs.org/model/cessna-337f) (registry code 2075725) (OpenAirDocs)
- Category: Airplane
- Serial number: 33701370
- Airframe hours: 2269
- Engines: CONTINENTAL IO-360-C 210 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: John W. Bell
- Airworthiness certificate: Standard, Utility
- Last inspection: Unknown, July 16, 1985
- Departed: TVS, KNOXVILLE, TN
- Destination: MRH, BEAUFORT, NC
- Airport: NKT, Ch. Pr Marine Corps Airst

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; private; airplane ratings: single-engine land, multi-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 1,200 total, 450 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 40° at 3 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 63 °F
- Altimeter: 29.00 inHg
- Observed at: NKT

## 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 19860703030859A](https://openairdocs.org/incident/19860703030859A), Jul 3, 1986: Cessna 337F, Cherry Point, NC, Substantial damage. The aircraft landed wheels up after all attempts to lower gear failed. Pilot had tampered with gear warning system.

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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