# NTSB LAX86LA267: Bellanca 14-19-2, N7687B, Mammoth, CA, June 27, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 27, 1986, 16:00 local (23:00 UTC)
- Place: Mammoth, CA
- Coordinates: 37.580478, -118.840774 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.5805&lon=-118.8408&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 25195
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86LA267
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25195/pdf
- Page: https://openairdocs.org/ntsb/LAX86LA267

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - uncontrolled
- Main gear collapsed, landing - roll
  - terrain condition - rough/uneven (contributing factor)
  - landing gear,main gear - overload

## Analysis

THE PLT LOST CONTROL OF THE ACFT & IT COLLIDED WITH TERRAIN DURING A LANDING TO RWY 27. THE PLT INDICATED THAT THE WINDS WERE FROM 190 DEG AT 15 GUSTING 20 KTS. REPORTEDLY, HE LANDED ON RWY 27 WITH AN INDICATED AIRSPEED OF 80 MPH. DURING THE LANDING ROLL, A GUST OF WIND WAS ENCOUNTERED & THE ACFT VEERED LEFT & GROUND LOOPED OFF THE RWY. THE MAIN GEAR COLLAPSED WHEN THE AIRCRAFT CROSSED THE RWY SHOULDER ONTO ROUGH TERRAIN. THE PLT ALSO INDICATED THAT HE HAD RECEIVED A WEATHER BRIEFING FROM A FSS. THE WINDS WERE FORCAST TO BE FROM 190 DEG AT 15 GUSTING 20 KTS AT THE DESTINATION.

## Aircraft

- Registration: [N7687B](https://openairdocs.org/aircraft/N7687B), registered now, S/N 4038, built 1957 (OpenAirDocs)
- Reported make and model: BELLANCA 14-19-2
- Registry model: [Bellanca 14-19-2](https://openairdocs.org/model/bellanca-14-19-2) (registry code 3080104) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 4038
- Airframe hours: 2141
- Engines: CONTINENTAL O-470-K 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: James D. Roberts
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 3, 1986, 10 hours before
- Departed: TSP, TECHACHAPI, CA
- Destination: MMH, MAMMOTH, CA
- Airport: MMH, Mammoth-June Lakes, runway 27, 7,000 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 3,083 total, 800 in this make and model, 2,930 as pilot in command, 35 in the last 90 days, 10 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 15 knots, gusting 20
- Visibility: 41 statute miles
- Lowest ceiling: none
- Temperature: 81 °F
- Altimeter: 30.00 inHg

## 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 19860627028389A](https://openairdocs.org/incident/19860627028389A), Jun 27, 1986: Blanca 14192, Mammoth Lakes, CA, Substantial damage. The aircraft ground looped during landing rollout. The pilot was aware of gusty direct crosswinds.

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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