# NTSB DEN93IA025: Boeing 767-222, N601UA, Denver, CO, January 9, 1993

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: January 8, 1993, 19:37 local (Jan 9, 1993, 02:37 UTC)
- Place: Denver, CO
- Location: 39.7392° N, 104.9847° W: Placed by OpenAirDocs: center of Denver, CO, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7392&lon=-104.9847&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 208 uninjured
- Status: Completed, report November 3, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18251
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN93IA025
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18251/pdf
- Page: https://openairdocs.org/ntsb/DEN93IA025

## Probable cause

MEDICAL INCAPACITATION OF THE FIRST OFFICER.

## Sequence of events

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

- Miscellaneous/other, cruise - normal
  - incapacitation(other organic problem), copilot/second pilot (cause)

## Analysis

WHILE IN CRUISE FLIGHT EN ROUTE FROM NEWARK, NEW JERSEY, TO SAN FRANCISCO, CALIFORNIA, THE FIRST OFFICER SUFFERED A GRAND MAL SEIZURE AND WAS INCAPABLE OF CONTINUING HIS DUTIES.  A COMPANY PILOT RIDING AS A PASSENGER CAME TO THE FLIGHT DECK AND ASSUMED THE FIRST OFFICER'S DUTIES, AND THE AIRCRAFT MADE AN UNEVENTFUL PRECAUTIONARY LANDING IN DENVER, COLORADO, WHERE THE INCAPACITATED FIRST OFFICER WAS REMOVED TO MEDICAL FACILITIES.

## Aircraft

- Registration: [N601UA](https://openairdocs.org/deregistered/N601UA-2018-05-30), registration cancelled 2018-05-30, S/N 21862 (OpenAirDocs)
- Reported make and model: BOEING 767-222
- Registry model: [Boeing 767-222](https://openairdocs.org/model/boeing-767-222) (registry code 1385122) (OpenAirDocs)
- Category: Airplane
- Serial number: 21862
- Engines: none N/A unknown
- Damage: No damage
- Flight: Part 121
- Operator: United Airlines
- Registered owner: United Airlines
- Airworthiness certificate: Standard, Transport
- Last inspection: Unknown, January 2, 2000
- Departed: EWR, NEWARK, NJ
- Destination: SFO, SAN FRANCISCO, CA
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; airline transport; airplane ratings: multi-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 15,686 total, 2,647 in this make and model

## Weather

- Conditions: Visual (VMC), Night/bright

## 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 19930108016629I](https://openairdocs.org/incident/19930108016629I), Jan 8, 1993: Boeing 767222, Denver, CO. Captain made an unscheduled stop when first officer suffered a seizure. Taken to a local hospital.

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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