# NTSB SEA87IA003: Mcdonnell Douglas DC-10-10, N1843U, Seattle, WA, October 5, 1986

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: October 5, 1986, 01:35 local (08:35 UTC)
- Place: Seattle, WA
- Coordinates: 47.440486, -122.310951 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.4405&lon=-122.3110&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40540
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA87IA003
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40540/pdf
- Page: https://openairdocs.org/ntsb/SEA87IA003

## Analysis

DURING ATTEMPT TO APPLY GROUND POWER TO ACFT, INTERNAL FEEDER CABLES SHORTED AND MELTED DOWN. INVESTIGATION REVEALED POOR WORKMANSHIP BY CONTRACTED MAINTENANCE PERSONNEL IN MODIFICATION INSTALLATION.

## Sequence of events

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

- Fire, standing
  - maintenance,modification - poor, other maintenance personnel (cause)
  - electrical system,electric wiring - shorted (cause)

## Aircraft

- Registration: N1843U (not matched to a registry record)
- Reported make and model: MCDONNELL DOUGLAS DC-10-10
- Category: Airplane
- Serial number: 3143
- Engines: GE CF-6 turbo fan
- Damage: Minor damage
- Fire: On-Ground
- Flight: Part 121
- Registered owner: United Air Lines
- Airworthiness certificate: Standard, Transport
- Flight plan: Unknown
- Airport: SEA, Sea-Tac

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; medical: unknown, unknown

## Weather

- Conditions: Not reported
- Visibility: 2 statute miles

## 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 19861005073879A](https://openairdocs.org/incident/19861005073879A), Oct 5, 1986: Doug DC1010, Seattle, WA, Substantial damage. Smoke was observed during servicing. The ground power feeder cable was improperly installed during modification.

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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