NTSB Identification: SEA83IA027
Scheduled 14 CFR Part 121: Air Carrier operation of REPUBLIC AIRLINES, INC.
Incident occurred Wednesday, December 01, 1982 in BOISE, ID
Probable Cause Approval Date: 12/01/1983
Aircraft: MCDONNELL DOUGLAS DC-9-51, registration: N785NC
Injuries: 22 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

AIRCRAFT HANDLING..NOT POSSIBLE..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

INCAPACITATION(CARDIOVASCULAR)..PILOT IN COMMAND

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