# NTSB MIA88IA256: Bellanca 8KCAB, N7699S, Miami, FL, August 18, 1988

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: August 18, 1988, 11:30 local (15:30 UTC)
- Place: Miami, FL
- Coordinates: 25.670307, -80.299438 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=25.6703&lon=-80.2994&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 25, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 32071
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA88IA256
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32071/pdf
- Page: https://openairdocs.org/ntsb/MIA88IA256

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - exhaust system,muffler - cracked (cause)
  - emergency procedure - performed, pilot in command
- Overrun, landing - flare/touchdown
  - fuselage,crew compartment - smoke (contributing factor)
  - proper touchdown point - not attained, pilot in command (contributing factor)
- Nose over, landing - roll

## Analysis

WHILE ON A PERSONAL FLT DURING NORMAL CRUISE, THE PLT REPORTED THAT THE COCKPIT FILLED WITH SMOKE. HE TURNED OFF THE ELECTRICAL SYSTEM & SECURED THE ENG, THEN ATTEMPTED A PRECAUTIONARY LANDING ON A GRASS STRIP. THE ACFT LANDED LONG, OVERRAN THE RWY, & NOSED OVER. EXAMINATION OF THE ACFT REVEALED THE MUFFLER SHROUD HAD A CRACK WHICH ALLOWED THE AIR NORMALLY USED FOR CABIN HEAT TO CONTACT THE FIREWALL. AS A RESULT, THE INSULATION OF THE INSIDE OF THE CABIN OVERHEATED, PRODUCING SMOKE.

## Aircraft

- Registration: N7699S (not matched to a registry record)
- Reported make and model: BELLANCA 8KCAB
- Category: Airplane
- Serial number: 263-76
- Airframe hours: 1300
- Engines: LYCOMING IO-320 150 horsepower reciprocating
- Damage: Minor damage
- Flight: Personal, Part 91
- Operator: Head, Hardy L.
- Registered owner: World Wide Aircraft Sales
- Airworthiness certificate: Standard, Normal; Standard, Aerobatic
- Last inspection: Annual, December 20, 1987, 75 hours before
- Departed: TMB, MIAMI, FL
- Airport: 6X5, Kendall Gliderport, runway 27, 2,600 ×  ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial, airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: front; flight hours: 18,000 total, 200 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 10 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: TMB, 3 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).

- [Incident 19880818066049I](https://openairdocs.org/incident/19880818066049I), Aug 18, 1988: Bbavia 8KCAB, Homestead, FL, Minor damage. Smoke in cockpit. Made emergency landing at a glider strip and overran the runway. Muffler cracked. Leaked exhaust.

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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