# NTSB LAX84LA093: Beech C24R, N3824R, Monterey, CA, November 26, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 25, 1983, 20:30 local (Nov 26, 1983, 04:30 UTC)
- Place: Monterey, CA
- Coordinates: 36.60025, -121.880241 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.6003&lon=-121.8802&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24113
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA093
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24113/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA093

## Sequence of events

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

- Fire, standing - engine(s) operating
  - exhaust system,manifold/pipe - improper (cause)
  - maintenance,installation - improper, other maintenance personnel (cause)
  - exhaust system,manifold/pipe - disconnected (cause)
  - fuel system,line - burned (cause)
  - fuel system,line - leak (cause)
  - fuel system,line - fire

## Analysis

FIRE ERUPTED IN THE ENG COMPARTMENT DURING THE ENG RUN-UP. INVESTIGAITON REVEALED THAT 7 OF THE 8 NUTS SECURING THE EXHAUST MANIFOLD TO THE CYLINDERS WERE MISSING. THE ONLY NUT PRESENT WAS LOOSE BUT RETAINED THE #1 CYL EXHAUST TUBE. THE #2 CYL EXHAUST TUBE, THOUGH NOT SECURED, WAS IN PLACE. THE #3 & #4 CYL EXHAUST TUBES WERE UNRESTRAINED & HAD DROPPEDDOWN, ALLOWING EXHAUST GASES TO ESCAPE. HEAT DAMAGE ALONG THE LEFT SIDE OF THE ENG WAS MUCH WORSE THAT ON THE RIGHT SIDE, & THE FUEL PUMP FUEL LINE WAS BURNED ENOUGH TO ALLOW FUEL UNDER PRESSURE TO ESCAPE INTO THE ENG COMPARTMENT.

## Aircraft

- Registration: [N3824R](https://openairdocs.org/aircraft/N3824R), registered now, S/N MC-741, built 1980 (OpenAirDocs)
- Reported make and model: BEECH C24R
- Registry model: [Beech C24R](https://openairdocs.org/model/beech-c24r) (registry code 1151254) (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: MC 741
- Airframe hours: 876
- Engines: LYCOMING IO-360-A1B6 200 horsepower reciprocating
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Part 135
- Operator: California Aviation Services
- Registered owner: Beech Acceptance Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, June 16, 1983, 90 hours before
- Airport: MRY, Monterey

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; commercial, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 5,116 total, 21 in this make and model, 4,770 as pilot in command, 12 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 330° at 10 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 52 °F, dew point 41 °F
- Observed at: MRY

## 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 19831125060259A](https://openairdocs.org/incident/19831125060259A), Nov 25, 1983: Beech C24R, Monterey, CA, Substantial damage. Nuts securing exhaust system to cylinders were missing. Exhaust tubes dropped down causing fire.

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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