# NTSB DCA98IA035: Airbus Industrie A300-600, N33069, Atlantic Ocean (Atlantic Ocean), April 20, 1998

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: April 20, 1998
- Place: Atlantic Ocean (Atlantic Ocean)
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 177 uninjured
- Status: Completed, report November 30, 2007
- Report: Approved by Office Director
- NTSB office: Major Investigations Division
- NTSB case key (mKey): 43113
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA98IA035
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/43113/pdf
- Page: https://openairdocs.org/ntsb/DCA98IA035

## Probable cause

Malfunction of the primary navigation system for undetermined reasons.

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise
  - reason for occurrence undetermined (cause)
  - comm/nav equipment - malfunction

## Analysis

On April 20, 1998 an incident occurred with an A300-600 in between their departure point, New York, and their destination, London Heathrow.  The navigational system malfunctioned.  The crew activated the secondary flight plan and the navigational system was operative. After landing, the #2 Flight Management Computer (FMC) was replaced and the navigational system checked functional. No additional information is available.

## Factual narrative

On April 20, 1998 an incident occurred with an A300-600 in between their departure point, New York, and their destination, London Heathrow.  The navigational system malfunctioned.  The crew activated the secondary flight plan and the navigational system was operative.

After landing, the #2 Flight Management Computer (FMC) was replaced and the navigational system checked functional.

No additional information is available.

## Aircraft

- Registration: [N33069](https://openairdocs.org/deregistered/N33069-2012-04-12), registration cancelled 2012-04-12, S/N 512, built 1989 (OpenAirDocs)
- Reported make and model: Airbus Industrie A300-600
- Registry model: [Airbus Industrie A300 B4-605R](https://openairdocs.org/model/airbus-industrie-a300-b4-605r) (registry code 3930308) (OpenAirDocs)
- Registry engine: [GE CF6-80 series](https://openairdocs.org/engine/ge-cf6-80-series) (registry code 30025, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Engines: unknown
- Fire: Unknown
- Flight: Part 121
- Operator: American Airlines
- Departed: NEW YORK, NY
- Destination: LONDON HEATHROW, OF
- Flight plan: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; medical: unknown, unknown

## Weather

- Conditions: Not reported

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.