# NTSB SEA83IA027: Mcdonnell Douglas DC-9-51, N785NC, Boise, ID, December 2, 1982

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: December 1, 1982, 21:27 local (Dec 2, 1982, 04:27 UTC)
- Place: Boise, ID
- Coordinates: 43.559551, -116.210639 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.5596&lon=-116.2106&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 22 uninjured
- Status: Completed, report December 1, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 69998
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA83IA027
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/69998/pdf
- Page: https://openairdocs.org/ntsb/SEA83IA027

## Analysis

SHORTLY AFTER CLIMBOUT FROM DENVER THE FIRST OFFICER NOTICED THE CAPTAIN TWITCH AND ASKED IF HE WAS OKAY. THE CAPTAIN ANSWERED AFFIRMATIVELY BUT DONNED HIS OXYGEN MASK AT THE CO-PILOT'S SUGGESTION. ABOUT 20 MINUTES LATER THE CAPTAIN STIFFENED WITH HIS LEFT FOOT PRESSING THE LEFT RUDDER PEDAL AS THE AIRCRAFT DESCENDED THROUGH 10000 FT APPROACHING BOISE. A STEWARDESS AND PASSENGER REMOVED THE CAPTAIN FROM HIS SEAT AND LAID HIM ON THE FLOOR. THE CO-PILOT DECLARED AN EMERGENCY AND CONTINUED THE APPROACH, LANDING WITHOUT FURTHER INCIDENT. AN AMBULANCE MET THE FLIGHT AND TOOK THE CAPTAIN TO THE HOSPITAL. EKG AND BLOOD CHEMISTRY TESTS SHOWED RESULTS COMPATIBLE WITH MYOCARDIAL INFARCTION.

## Sequence of events

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

- Miscellaneous/other, descent - normal
  - aircraft handling - not possible, pilot in command (cause)
  - incapacitation(cardiovascular), pilot in command (cause)

## Aircraft

- Registration: [N785NC](https://openairdocs.org/deregistered/N785NC-2015-05-14), registration cancelled 2015-05-14, S/N 48110, built 1980 (OpenAirDocs)
- Reported make and model: MCDONNELL DOUGLAS DC-9-51
- Registry model: [Mcdonnell Douglas DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (registry code 3022051) (OpenAirDocs)
- Registry engine: [Pratt & Whitney JT8D-17 series](https://openairdocs.org/engine/pratt-whitney-jt8d-17-series) (registry code 52049, turbo-jet) (OpenAirDocs)
- Category: Airplane
- Serial number: 48110
- Airframe hours: 7077
- Engines: P & W JT8D-17 16000 lbs thrust turbo fan
- Damage: No damage
- Flight: Part 121
- Operator: Republic Airlines, Inc.
- Registered owner: Hartford Nat'L. Bank & Trust C
- Departed: DEN, DENVER, CO
- Destination: ROCKY MOUNT, NC
- Flight plan: IFR
- Airport: BOI, Gowen Field, runway 28, 9,763 × 190 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 9,600 total, 4,000 in this make and model, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 290° at 12 knots
- Visibility: 15 statute miles
- Temperature: 93 °F
- Altimeter: 29.00 inHg
- Observed at: BOI

## 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 19821201065749I](https://openairdocs.org/incident/19821201065749I), Dec 1, 1982: Doug DC951, Boise, ID. Captain suffered a heart attack en-route. Copilot landed aircraft with aid of a flight attendant.

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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