# NTSB ATL83LA080: Swearingen SA-226TC, N5291M, Laurel, MS, January 2, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 2, 1983, 03:44 local (09:44 UTC)
- Place: Laurel, MS
- Coordinates: 31.690557, -89.139778 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=31.6906&lon=-89.1398&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 20 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 5994
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL83LA080
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5994/pdf
- Page: https://openairdocs.org/ntsb/ATL83LA080

## Analysis

AT 11,000 FT MSL DURING CRUISE A PROP SEPARATED FROM THE LEFT ENG. THE ENG WAS FEATHERED & THE PLT OBSERVED THE ENG DISPLACED INBOARD & DOWNWARD. AN EMERGENCY LANDING WAS MADE & UPON LANDING THE LEFT MAIN GEAR WAS FOUND TO BE RETRACTED.THE ACFT SLID TO A STOP COMING TO REST ON THE ADJACENT TAXIWAY. METALLURGICAL EXAMINATION REVEALED THAT THE BLADE FAILED FROM FATIGUE INITIATING AT CORROSION PITS ON THE INTERIOR OF THE FAILED BLADE BALANCE HOLE. THE PAINT IN THE BALANCE HOLE WAS DISCONTINUOUS & NON-UNIFORM. THERE WAS NO EVIDENCE OF THE HOLE HAVING BEEN SHOTPEENED. OVERHAUL INSTRUCTIONS REQUIRE SHOTPEENING OF THE BALANCE HOLE. TSO WAS CALCULATED AS 1565.8 HRS.

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - propeller system/accessories,blade - corroded (cause)
  - propeller system/accessories,blade - fatigue (cause)
  - propeller system/accessories,blade - failure,total (cause)
  - maintenance,overhaul - inadequate, other maintenance personnel (cause)
  - propeller system/accessories,blade - separation (contributing factor)
- Loss of control - on ground/water, landing - roll
  - landing gear,normal retraction/extension assembly - inoperative (cause)
  - gear extension - not possible, pilot in command (cause)
  - directional control - not possible, pilot in command (cause)
  - ground loop/swerve - uncontrolled, pilot in command (contributing factor)

## Aircraft

- Registration: [N5291M](https://openairdocs.org/deregistered/N5291M-1991-03-13), registration cancelled 1991-03-13, S/N TC202E (OpenAirDocs)
- Reported make and model: SWEARINGEN SA-226TC
- Registry model: [Swearingen SA226TC](https://openairdocs.org/model/swearingen-sa226tc) (registry code 8780404) (OpenAirDocs)
- Category: Airplane
- Serial number: TC202E
- Airframe hours: 4437
- Engines: AIRESEARCH TPE3313UW303G 940 horsepower turbo prop
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Planes, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: AAIP, December 20, 1982, 42 hours before
- Departed: BTR, BATON ROUGE, LA
- Destination: PDK, CHAMBLEE, GA
- Flight plan: IFR
- Airport: PIB, Pine Belt Regional, runway 18, 6,501 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 5,469 total, 2,800 in this make and model, 5,135 as pilot in command, 82 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: calm
- Visibility: 2 statute miles
- Lowest ceiling: 300 ft overcast
- Temperature: 55 °F, dew point 54 °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 19830102000199A](https://openairdocs.org/incident/19830102000199A), Jan 2, 1983: Swrngn SA226TC, Laurel, MS, Substantial damage. Propeller blade separated in flight causing substantial damage and precautionary landing. Pn T10282HB.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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