# NTSB MIA82FA051: Boeing 727-235, N4734, Miami, FL, February 17, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: February 17, 1982, 15:45 local (20:45 UTC)
- Place: Miami, FL
- Coordinates: 25.820653, -80.299713 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=25.8207&lon=-80.2997&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor, 51 uninjured
- Status: Completed, report February 17, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 69199
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA82FA051
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/69199/pdf
- Page: https://openairdocs.org/ntsb/MIA82FA051

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, takeoff - roll/run
  - compressor assembly - fatigue (cause)
  - compressor assembly - failure,total (cause)
  - inadequate quality control, manufacturer (contributing factor)
- Fire/explosion, takeoff - roll/run

## Analysis

DURING TAKEOFF ROLL A LOUD BANG WAS HEARD & THE TAKEOFF ABORTED. THE TOWER ADVISED THE FLT OF EXTENSIVE FIRE IN THE TAILAREA. THE PLT CLEARED THE ACTIVE RWY & THE ACFT WAS EVACUATED. 1 PAX SUFFERED A FRACTURED ANKLE & ANOTHER A SPRAINED ANKLE. AN EXPLOSION HAD OCCURRED IN THE #2 ENG DUE TO A FAILED FRONT COMPRESSOR FRONT HUB. THE MAIN FUEL SUPPLY LINE TO THE #2 ENG WAS SEVERED CAUSING THE FIRE. METALLURGICAL EXAMINATION REVEALED THAT THE HUB FRACTURED RADIALLY THROUGH THE BORE & RIM IN TWO LOCATIONS RELEASING TWO SECTIONS. FATIGUE HAD ORIGINATED AT A NONCONFORMING CIRCUMFERENTIAL GROOVE AT THE REAR OF ONE TIE ROD HOLE. THE SURFACE OF THE GROOVE EXHIBITED A VERY ROUGH, SMEARED APPEARANCE & THERE WERE NUMEROUS AXIAL CRACKS.

## Aircraft

- Registration: [N4734](https://openairdocs.org/deregistered/N4734-1994-01-26), registration cancelled 1994-01-26, S/N 19454 (OpenAirDocs)
- Reported make and model: BOEING 727-235
- Registry model: [Boeing 727-235](https://openairdocs.org/model/boeing-727-235) (registry code 138408B) (OpenAirDocs)
- Category: Airplane
- Serial number: 19454
- Airframe hours: 38448
- Engines: P & W JT8D-7B 14000 lbs thrust turbo fan
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Part 121
- Operator: Pan American World Airways, In
- Registered owner: Pan American World Airways, In
- Departed: MIA, MIAMI, FL
- Destination: C, ORLANDO, FL
- Flight plan: IFR
- Airport: MIA, Miami International, runway 27, 13,002 × 150 ft, macadam

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 9,000 total, 7,000 in this make and model, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 4 knots
- Visibility: 7 statute miles
- Lowest ceiling: 8,000 ft overcast
- Temperature: 154 °F, dew point 32 °F
- Altimeter: 29.00 inHg

## 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 19820217004509A](https://openairdocs.org/incident/19820217004509A), Feb 17, 1982: Boeing 727235, Miami, FL, Substantial damage. Explosion occurred in number 2 engine during takeoff. Captain aborted takeoff but damage occurred from fire.

## Other investigations on N4734 (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 MIA72IM116](https://openairdocs.org/ntsb/MIA72IM116), May 1, 1972: Boeing 727 (N4734), Jacksonville, 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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