# NTSB BFO89IA047: British Aerospace 3101, N849JS, Baltimore, MD, June 26, 1989

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: June 26, 1989, 18:16 local (22:16 UTC)
- Place: Baltimore, MD
- Coordinates: 39.169967, -76.670974 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.1700&lon=-76.6710&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 13 uninjured
- Status: Completed, report August 26, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 11477
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=BFO89IA047
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11477/pdf
- Page: https://openairdocs.org/ntsb/BFO89IA047

## Probable cause

FAILURE OF MAINTENANCE PERSONNEL TO PROPERLY TORQUE THE POWER CONNECTION AT THE AIR CONDITIONING SYSTEM FUSE.

## Sequence of events

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

- Airframe/component/system failure/malfunction, landing - roll
  - air cond/heating/pressurization
  - electrical system,electric wiring - loose (cause)
  - maintenance,installation - poor, other maintenance personnel (cause)
  - electrical system,fuse - shorted

## Analysis

AFTER TOUCHDOWN, A PASSENGER INFORMED THE FLT CREW OF SMOKE AND SPARKS COMING FROM THE PANEL BEHIND THE CAPTAIN'S SEAT. THE ELECTRICAL SYSTEM AND ENGINE WERE SHUT DOWN AND PASSENGERS WERE DEPLANED AS A PRECAUTION. INSPECTION REVEALED A SHORT AT THE AIR CONDITIONING SYSTEM POWER CABLE/FUSE CONNECTION AT THE STATION 130 ELECTRICAL PANEL. THE PANEL WAS SCHEDULED TO BE INSPECTED EVERY 3600 HOURS. TOTAL ACFT TIME WAS 2117 HOURS. THE AIR CONDITIONING SYSTEM WAS A POST-PRODUCTION ADD-ON SYSTEM.

## Aircraft

- Registration: [N849JS](https://openairdocs.org/aircraft/N849JS), registered now, S/N 812, built 1988 (OpenAirDocs)
- Reported make and model: BRITISH AEROSPACE 3101
- Registry model: [British Aerospace BAE JETSTREAM 3101](https://openairdocs.org/model/british-aerospace-bae-jetstream-3101) (registry code 1500216) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 812
- Airframe hours: 2119
- Engines: GARRETT TPE-331 940 horsepower turbo prop
- Damage: Minor damage
- Flight: Part 135
- Operator: Jetstream International, doing business as Piedmont Commuter
- Registered owner: Usair Leasing And Services,Inc
- Airworthiness certificate: Standard, Normal
- Departed: BDR, BRIDGEPORT, CT
- Flight plan: IFR
- Airport: BWI, Baltimore/Washington, runway 15, 9,519 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; airline transport; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 7,800 total, 2,200 in this make and model, 7,425 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 6 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 88 °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).

- [Incident 19890626033029I](https://openairdocs.org/incident/19890626033029I), Jun 26, 1989: Bag JETSTM3101, Baltimore, MD. Sparks and smoke from panel behind pilot while taxiing. Evacuated. Airconditioner power cable arcing at fuse.

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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