# NTSB MIA92LA137: Cessna 402B, N402PB, Atlantic Ocean (Atlantic Ocean), June 13, 1992

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: June 13, 1992, 11:15 local (15:15 UTC)
- Place: Atlantic Ocean (Atlantic Ocean)
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed, report May 3, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 33101
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA92LA137
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33101/pdf
- Page: https://openairdocs.org/ntsb/MIA92LA137

## Probable cause

FOR UNDETERMINED REASON(S), THE RIGHT ENGINE FAILED AND THE RIGHT PROPELLER WOULD NOT FEATHER.

## Sequence of events

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

- Loss of engine power, cruise - normal
  - 1 engine
  - powerplant - undetermined (cause)
  - propeller system/accessories,feathering system - undetermined (cause)
  - propeller feathering - not possible
- Fire, cruise - normal
- Forced landing, descent - emergency
- Ditching, landing

## Analysis

DURING CRUISE FLT, THE PLT REPORTED THAT THE RT ENG COWLING PARTIALLY SEPARATED & THE LT FWD CYLINDER OF THAT ENG SEPARATED, FOLLOWED BY AN ENG COMPARTMENT FIRE.  HE ATTEMPTED TO FEATHER THE PROPELLER BUT WAS UNABLE. HE INITIATED A DESCENT TO EXTINGUISH THE FIRE & WAS SUCCESSFUL BUT AFTER LEVELING OFF, WAS UNABLE TO MAINTAIN DIRECTIONAL CONTROL.  HE DITCHED THE AIRPLANE & BOTH HE & THE PAX EXITED THE ACFT.  THE PLT DRAGGED THE SERIOUSLY INJURED PAX WITH HIM TO A NEARBY ISLAND WHERE THEY WERE RESCUED THE FOLLOWING DAY.  THE ACFT WAS NOT RECOVERED; THEREFORE, NO DETERMINATION COULD BE MADE AS TO THE REASON FOR THE SEPARATION OF THE CYLINDER.  REVIEW OF THE ACFT LOGBOOK INDICATES THAT ON 8/27/91, THE NO.5 CYLINDER OF THE RT ENG WAS REMOVED & REPLACED.  ALSO, THE NO. 1 CYLINDER WAS REMOVED & REINSTALLED FOLLOWING REPAIR.  THERE WERE NO FURTHER ENTRIES IN THE ACFT LOGBOOK REGARDING CYLINDER REMOVAL OR REPLACEMENT TO THE RT ENG.

## Aircraft

- Registration: [N402PB](https://openairdocs.org/deregistered/N402PB-1992-10-21), registration cancelled 1992-10-21, S/N 402B0245 (OpenAirDocs)
- Reported make and model: CESSNA 402B
- Registry model: [Cessna 402B](https://openairdocs.org/model/cessna-402b) (registry code 207590P) (OpenAirDocs)
- Category: Airplane
- Serial number: 402B0245
- Airframe hours: 9097
- Engines: CONTINENTAL TSIO-520-E 300 horsepower reciprocating
- Damage: Substantial damage
- Fire: In-Flight
- Flight: Positioning, Part 91
- Operator: Aerojet, Inc.
- Registered owner: Aerojet, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, May 15, 1992, 45 hours before
- Departed: MYAT, TREASURE CAY, OF
- Destination: FXE, FORT LAUDERDALE, FL
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial, airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 6,574 total, 231 in this make and model, 5,787 as pilot in command, 251 in the last 90 days, 67 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 84 °F

## 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 19920613024419A](https://openairdocs.org/incident/19920613024419A), Jun 13, 1992: Cessna 402B, Ft Lauderdale, FL, Destroyed. Right engine blew a cylinder en route over ocean. Unable stay aloft due prop windmilling. Ditched. Aircraft sank.

## Other investigations on N402PB (1)

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.

- [NTSB MIA85IA069](https://openairdocs.org/ntsb/MIA85IA069), Dec 29, 1984: Cessna 402B (N402PB), Sanford, FL, incident, minor damage

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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