# NTSB MIA83FA027: Boeing 707-300, N707GB, Miami, FL, November 11, 1982

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: November 11, 1982, 10:30 local (15:30 UTC)
- Place: Miami, FL
- Location: 25.7743° N, 80.1937° W: Placed by OpenAirDocs: center of Miami, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=25.7743&lon=-80.1937&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 3 uninjured
- Status: Completed, report November 11, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71683
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA83FA027
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71683/pdf
- Page: https://openairdocs.org/ntsb/MIA83FA027

## Sequence of events

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

- Decompression, climb
  - air cond/heating/pressurization - fluctuating (cause)

## Analysis

DURING CLIMBOUT FROM MIAMI, A CABIN PRESSURIZATION PROBLEM WAS ENCOUNTERED. ALL CREW MEMBERS DONNED THEIR OXYGEN MASKS & THE CABIN ALTITUDE STABILIZED AT 20,000 FT AS THE ACFT WAS LEVELED AT 33,000 FT. ABOUT 40 MINUTES FROM DESTINATION THE FLIGHT ENGINEER TRAINEE/OBSERVER QUERIED THE FIRST OFFICER AS TO HOW MUCH LONGER THE FLIGHT WOULD TAKE. MOMENTS LATER THE TRAINEE STARTED TO SLUMP DOWN. THE FLIGHT ENGINEER TRADED MASKS WITH HIM AND VERIFIED THAT THE OXYGEN SUPPLY WAS NORMAL. AN EMERGENCY DESCENT WAS MADE TO 6,000 FT WHILE FIRST AID WAS ADMINISTERED. AN AMBULANCE MET THE FLIGHT AT THE DESTINATION & TRANSPORTED THE TRAINEE TO A HOSPITAL WHERE HE EXPIRED LATER IN THE DAY. CAUSE OF DEATH WAS LATER DIAGNOSED AS AEROEMBOLISM (BY EXCLUSION). THE TRAINEE HAD A CLINICAL HISTORY OF SEIZURES & LOSS OF CONSCIOUSNESS FOLLOWING DECOMPRESSION. THE PRESSURIZATION PROBLEM WAS REPORTEDLY RELATED TO A STUCK OUTFLOW VALVE.

## Aircraft

- Registration: [N707GB](https://openairdocs.org/deregistered/N707GB-1991-03-01), registration cancelled 1991-03-01, S/N 18808 (OpenAirDocs)
- Reported make and model: BOEING 707-300
- Registry model: [Boeing 707-338C](https://openairdocs.org/model/boeing-707-338c) (registry code 138367N) (OpenAirDocs)
- Category: Airplane
- Serial number: 18808
- Engines: P & W JT3D 18000 lbs thrust turbo fan
- Damage: No damage
- Flight: Part 121
- Operator: Arrow Airways
- Registered owner: International Air Leases, Inc.
- Departed: C, MIAMI, FL
- Destination: C, DOMINICAN REPUB
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 10,000 total, 1,500 in this make and model

## Weather

- Conditions: Visual (VMC), Day

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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