# NTSB DCA84AA002: Hawker Siddeley HS-748-2A, N748LL, Pinckneyville, IL, October 12, 1983

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: October 11, 1983, 20:53 local (Oct 12, 1983, 01:53 UTC)
- Place: Pinckneyville, IL
- Coordinates: 38.069728, -89.38002 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.0697&lon=-89.3800&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 10 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Major Investigations Division
- NTSB case key (mKey): 15796
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA84AA002
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15796/pdf
- Page: https://openairdocs.org/ntsb/DCA84AA002

## Sequence of events

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

- Airframe/component/system failure/malfunction, climb - to cruise
  - electrical system,generator - failure,partial (contributing factor)
  - electrical system,generator - switched off (contributing factor)
  - electrical system,generator - failure,total (contributing factor)
  - in-flight planning/decision - improper, pilot in command (cause)
  - self-induced pressure, pilot in command (contributing factor)
  - inadequate recurrent training, company/operator management (contributing factor)
  - inadequate surveillance of operation, faa(organization) (contributing factor)
  - not performed, pilot in command
  - electrical system,battery - exhaustion
  - electrical system - inoperative
  - flight/nav instruments - inoperative
- Loss of control - in flight, cruise
  - aircraft handling - not possible, pilot in command
  - spatial disorientation, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

ABOUT 1.5 MIN AFTER DEPARTING SPRINGFIELD, IL, THE FLTCREW REPORTED A SLIGHT ELECTRICAL PROBLEM, BUT THEY CONTINUED ON COURSE. ABOUT 33 MIN LATER & A FEW MIN BEFORE THE ACFT SHOULD HAVE REACHED ITS DESTINATION, THE ACFT CRASHED. IMPACT OCCURRED WHILE THE ACFT WAS DESCENDING IN A RIGHT WING LOW ATTITUDE. BEFORE CRASHING, THE PLANE'S HEADING HAD CHANGED ABOUT 180 DEG. A CVR TRANSCRIPT REVEALED THE L GENERATOR (GEN) HAD FAILED AFTER TAKEOFF & THE 1ST OFFICER HAD MISTAKENLYISOLATED THE R GEN. ATTEMPTS TO RESTORE THE R GEN WERE UNSUCCESSFUL. THE CAPTAIN ELECTED TO CONTINUE TO THE DESTINATION RATHER THAN RETURN TO THE NEARBY DEPT ARPT. THE CLD BASES WERE AT 2000' MSL, BUT ATC COULD NOT PROVIDE AN IFR CLNC BELOW3000 FT. JUST BEFORE CRASHING, THE CREW INDICATED A TOTAL LOSS OF ELECTRICAL POWER. THE L GEN DRIVE SHAFT HAD SHEARED. THE REASON FOR THE R GEN NOT TO RESET WAS NOT DETERMINED. THERE WAS EVIDENCE THAT RECURRENT FLTCREW TRAINING DID NOT PREPARE THE CREW TO UNDERSTAND & COPE WITH THE ELEC PROBLEM & THAT FAA SURVEILLANCE DID NOT DETECT THE TRNG DEFICIENCY.

## Aircraft

- Registration: [N748LL](https://openairdocs.org/deregistered/N748LL-1984-04-09), registration cancelled 1984-04-09, S/N 1716 (OpenAirDocs)
- Reported make and model: HAWKER SIDDELEY HS-748-2A
- Registry model: [Hawker-Siddeley 748 SERIES 2](https://openairdocs.org/model/hawker-siddeley-748-series-2) (registry code 4231001) (OpenAirDocs)
- Category: Airplane
- Serial number: 1716
- Airframe hours: 21182
- Engines: Rolls-Royce RDA-7,MK535-2 2238 horsepower turbo prop
- Damage: Destroyed
- Flight: Part 121
- Operator: Air Illinois, Inc
- Departed: SPI, SPRINGFIELD, IL
- Destination: MDH, CARBONDALE, IL
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; commercial, airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 5,891 total, 3,170 in this make and model, 261 in the last 90 days, 81 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 180° at 10 knots, gusting 8
- Visibility: 1 statute miles
- Lowest ceiling: 2,000 ft overcast
- Temperature: 63 °F, dew point 61 °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 19831011076029A](https://openairdocs.org/incident/19831011076029A), Oct 11, 1983: Braero HS7482A, Pinckneyville, IL, Destroyed, 7 fatal. Left generator shaft failed, right generator mistakenly diabled. Depleted battery. Flew into ground on descent.

## Other investigations on N748LL (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 CHI81FA092](https://openairdocs.org/ntsb/CHI81FA092), Aug 25, 1981: Hawker Sdly 748 (N748LL), Chicago, IL, substantial 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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