# NTSB DCA99IA023: Boeing 757, Washington, DC, November 29, 1998

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: November 29, 1998, 15:25 local (20:25 UTC)
- Place: Washington, DC
- Location: 38.8951° N, 77.0364° W: Placed by OpenAirDocs: center of Washington, DC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8951&lon=-77.0364&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Status: Completed, report November 30, 2007
- Report: Approved by Office Director
- NTSB office: Major Investigations Division
- NTSB case key (mKey): 45671
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA99IA023
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/45671/pdf
- Page: https://openairdocs.org/ntsb/DCA99IA023

## Probable cause

Undetermined.

## Sequence of events

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

- Near collision between aircraft, landing
  - reason for occurrence undetermined (cause)

## Analysis

On November 29, 1998,  Net Jet flight 462, a Gulfstream G-IV was cleared for takeoff on runway 19R at Washington Dulles International Airport. A United Airlines B-757, United flight 216, had been cleared to land on runway 12. The estimated separation between Net Jet 462 and United  216 was 1,000 feet vertical separation and between 200 and 500 feet horizontal separation.

No additional information is available.

## Factual narrative

On November 29, 1998,  Net Jet flight 462, a Gulfstream G-IV was cleared for takeoff on runway 19R at Washington Dulles International Airport. A United Airlines B-757, United flight 216, had been cleared to land on runway 12. The estimated separation between Net Jet 462 and United  216 was 1,000 feet vertical separation and between 200 and 500 feet horizontal separation.

No additional information is available.

## Aircraft

- Registration: UNK (not matched to a registry record)
- Reported make and model: Boeing 757
- Category: Airplane
- Engines: unknown
- Damage: No damage
- Fire: Unknown
- Flight: Part 121
- Operator: United Airlines
- 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.

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