# NTSB MIA96LA093: Bellanca 8GCBC, N86928, Panama City Bch, FL, March 5, 1996

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 5, 1996, 15:10 local (21:10 UTC)
- Place: Panama City Bch, FL
- Coordinates: 30.200691, -85.790725 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.2007&lon=-85.7907&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 4, 1996
- Report: Approved by Office Director
- NTSB case key (mKey): 37990
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA96LA093
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37990/pdf
- Page: https://openairdocs.org/ntsb/MIA96LA093

## Probable cause

improper compensation for wind conditions by the second pilot, his inadequate remedial action after the airplane lifted off during a wind gust, and inadequate supervision by the first pilot (PIC).  A factor relating to the accident was: the gusty wind condition.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, copilot/second pilot (cause)
  - lift-off - inadvertent
  - remedial action - inadequate, copilot/second pilot (cause)
  - supervision - inadequate, pilot in command (cause)
- Airframe/component/system failure/malfunction, landing
  - miscellaneous,bolt/nut/fastener/clamp/spring - stripped thread
  - landing gear,axle - separation
- Nose over, landing

## Analysis

The pilot-in-command (PIC), who occupied the rear seat, was training the front seat pilot regarding banner towing operations. When the flight returned from tow-training, the banner was dropped, and the pilots entered the traffic pattern to land. The front seat pilot was manipulating the controls on final approach with the flaps fully extended, when the flight encountered gusty wind conditions. After touchdown, the flight encountered a gust of wind, and the airplane became airborne again. The front seat pilot stated that he applied only partial power, and the airplane landed hard, causing the right main landing gear wheel/axle assembly to separate. The airplane then nosed over and came to rest inverted. Examination of the threads of all 4 of the axle attach nuts revealed that they were stripped.

## Factual narrative

On March 5, 1996, about 1510 central standard time, a Bellanca 8GCBC, N86928, registered to and operated by Aerial Ads, Inc., of the Southeast, landed hard then nosed over at a private airstrip called the Buchanan STOLPORT, Panama City Beach, Florida.  Visual meteorological conditions prevailed at the time and no flight plan was filed for the 14 CFR Part 91 banner towing flight.  The airplane was substantially damaged and the commercial-rated pilot-in-command (PIC) and commercial-rated trainee were not injured.  The flight originated about 1405, from the Buchanan STOL PORT.

The PIC was in the rear seat and was training the front seat pilot regarding banner towing operations.  The front seat pilot who was flying the airplane reported that gusty wind conditions existed and after dropping the banner, he turned base to final with the flaps fully extended.  After a three point landing during the landing roll, a gust of wind occurred and the airplane then became airborne.  He applied only partial power and the airplane landed hard causing the right main landing gear wheel/axle assembly to separate.  The airplane then nosed over and came to rest inverted.  The PIC stated that there was no preimpact failure or malfunction of the engine or flight controls.

Postaccident inspection of the right main landing gear axle attach hardware by an FAA inspector revealed that the threads of all four of the AN365-524 nuts were stripped.  The nuts attach to bolts that secure the axle to the gear leg.

## Aircraft

- Registration: [N86928](https://openairdocs.org/aircraft/N86928), registered now, S/N 32-74, built 1974 (OpenAirDocs)
- Reported make and model: Bellanca 8GCBC
- Registry model: [Bellanca 8GCBC](https://openairdocs.org/model/bellanca-8gcbc) (registry code 1220803) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 32-74
- Airframe hours: 5145
- Engines: Lycoming O-360 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Registered owner: Aerial Ads, Inc., Of The South
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 30, 1995, 316 hours before
- Departed: FA07
- Airport: FA07, Buchanan Stolport, runway 18, 1,000 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: rear; flight hours: 2,450 total, 2,000 in this make and model, 2,360 as pilot in command, 50 in the last 90 days, 25 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 18 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 61 °F
- Altimeter: 30.00 inHg
- Observed at: PFN

## 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 19960305007449A](https://openairdocs.org/incident/19960305007449A), Mar 5, 1996: Bbavia 8GCBC, Panama City Bea, FL, Substantial damage. Dual for banner ops. Landed hard. Nosed over. Wind picked up plane. Impact separated right wheel axle assembly.

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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